WorldWideScience

Sample records for aircraft maintenance equipment

  1. Robots for Aircraft Maintenance

    Science.gov (United States)

    1993-01-01

    Marshall Space Flight Center charged USBI (now Pratt & Whitney) with the task of developing an advanced stripping system based on hydroblasting to strip paint and thermal protection material from Space Shuttle solid rocket boosters. A robot, mounted on a transportable platform, controls the waterjet angle, water pressure and flow rate. This technology, now known as ARMS, has found commercial applications in the removal of coatings from jet engine components. The system is significantly faster than manual procedures and uses only minimal labor. Because the amount of "substrate" lost is minimal, the life of the component is extended. The need for toxic chemicals is reduced, as is waste disposal and human protection equipment. Users of the ARMS work cell include Delta Air Lines and the Air Force, which later contracted with USBI for development of a Large Aircraft Paint Stripping system (LARPS). LARPS' advantages are similar to ARMS, and it has enormous potential in military and civil aircraft maintenance. The technology may also be adapted to aircraft painting, aircraft inspection techniques and paint stripping of large objects like ships and railcars.

  2. Equipment maintenance and repair

    Directory of Open Access Journals (Sweden)

    Walia DS

    2010-10-01

    Full Text Available The repair and maintenance of ophthalmic equipment, including surgical instruments and diagnostic devices, can be compared to the maintenance of a motor vehicle, something many of us understand well.If you had a car, would you drive it until the fuel runs out or until a tyre punctures, and then abandon it to buy a new car? Of course not. However, many eye care units purchase (or receive as a donation expensive and delicate equipment which, because of poor maintenance, ends up breaking down. If there is not a system in place to report breakdowns and to plan or carry out repairs, equipment can remain unusable for long periods of time. Sometimes, this equipment ends up being dumped. Good maintenance habits and an effective repair system will minimise the amount of time equipment is unusable.

  3. HUMAN FACTOR IMPACT IN MILITARY AIRCRAFT MAINTENANCE

    OpenAIRE

    MARINKOVIC SRBOLJUB J.; DRENOVAC ALEKSANDAR Z.

    2015-01-01

    Aircraft maintenance, as a specific field of military materiel maintenance, is characterized by high reliability standards, based on regulations and technical standards. A system approach to maintenance represents the key element of maintenance quality, while aircraft maintenance staff has a crucial influence on the final outcome of aircraft maintenance.

  4. Analysis of aircraft maintenance models

    Directory of Open Access Journals (Sweden)

    Vlada S. Sokolović

    2011-10-01

    Full Text Available This paper addressed several organizational models of aircraft maintenance. All models presented so far have been in use in Air Forces, so that the advantages and disadvantages of different models are known. First it shows the current model of aircraft maintenance as well as its basic characteristics. Then the paper discusses two organizational models of aircraft maintenance with their advantages and disadvantages. The advantages and disadvantages of different models are analyzed based on the criteria of operational capabilities of military units. In addition to operational capabilities, the paper presents some other criteria which should be taken into account in the evaluation and selection of an optimal model of aircraft maintenance. Performing a qualitative analysis of some models may not be sufficient for evaluating the optimum choice for models of maintenance referring to the selected set of criteria from the scope of operational capabilities. In order to choose the optimum model, it is necessary to conduct a detailed economic and technical analysis of individual tactical model maintenance. A high-quality aircraft maintenance organization requires the highest state and army authorities to be involved. It is necessary to set clear objectives for all the elements of modern air force technical support programs based on the given evaluation criteria.

  5. Research on Selection of Equipment Maintenance Modes

    Institute of Scientific and Technical Information of China (English)

    SHANG Wen-li; SHI Hai-bo; HE Bai-tao

    2006-01-01

    The development of equipment maintenance management is introduced, and equipment maintenance concept is defined. Equipment maintenance modes are classified, analyzed and compared, which merits and demerits are pointed out. At last, a decision-making frame to select equipment maintenance modes is advanced, and steps to select and implement equipment maintenance are given.

  6. Preventive Maintenance Handbook. Audiovisual Equipment.

    Science.gov (United States)

    Educational Products Information Exchange Inst., Stony Brook, NY.

    The preventive maintenance system for audiovisual equipment presented in this handbook is designed by specialists so that it can be used by nonspecialists in school sites. The report offers specific advice on saftey factors and also lists major problems that should not be handled by nonspecialists. Other aspects of a preventive maintenance system…

  7. Aircraft Wiring Support Equipment Integration Laboratory (AWSEIL)

    Data.gov (United States)

    Federal Laboratory Consortium — Purpose: The Aircraft Wiring Support Equipment Integration Laboratory (AWSEIL) provides a variety of research, design engineering and prototype fabrication services...

  8. Gamma radiography applied to aircraft maintenance

    International Nuclear Information System (INIS)

    Gamma-radiography as used in aircraft maintenance was introduced in the 1960's and is almost entirely focussed on the jet engine. It is used to identify cracking, corrosion, distortion, distress, assembly, alignment and wear. The general arrangement of an axial flow engine will permit the placement of a radiographic source in the central shaft. The radiations emitted may be directed at an appropriate angle to the part examined to produce a radiographic image. The techniques presented here are used to monitor the condition of specific rotating and non-rotating components in the gas flow path of high by-pass jet engines. Conventional gamma radiography equipment is used. The source is almost always Iridium-192, of between 800-3000 GBq. It has effective energies of 400-600 kV and a half-life of about 75 days. Exposure control and positioning apparatus is the same as for other industrial radiography with rigid guide tubes to locate the source centrally within the engine. The use of this inspection technique is realised as lower maintenance expenses than would otherwise be possible for the equivalent level of reliability. 19 refs., 12 figs

  9. Automation tools for flexible aircraft maintenance.

    Energy Technology Data Exchange (ETDEWEB)

    Prentice, William J.; Drotning, William D.; Watterberg, Peter A.; Loucks, Clifford S.; Kozlowski, David M.

    2003-11-01

    This report summarizes the accomplishments of the Laboratory Directed Research and Development (LDRD) project 26546 at Sandia, during the period FY01 through FY03. The project team visited four DoD depots that support extensive aircraft maintenance in order to understand critical needs for automation, and to identify maintenance processes for potential automation or integration opportunities. From the visits, the team identified technology needs and application issues, as well as non-technical drivers that influence the application of automation in depot maintenance of aircraft. Software tools for automation facility design analysis were developed, improved, extended, and integrated to encompass greater breadth for eventual application as a generalized design tool. The design tools for automated path planning and path generation have been enhanced to incorporate those complex robot systems with redundant joint configurations, which are likely candidate designs for a complex aircraft maintenance facility. A prototype force-controlled actively compliant end-effector was designed and developed based on a parallel kinematic mechanism design. This device was developed for demonstration of surface finishing, one of many in-contact operations performed during aircraft maintenance. This end-effector tool was positioned along the workpiece by a robot manipulator, programmed for operation by the automated planning tools integrated for this project. Together, the hardware and software tools demonstrate many of the technologies required for flexible automation in a maintenance facility.

  10. [Development of Hospital Equipment Maintenance Information System].

    Science.gov (United States)

    Zhou, Zhixin

    2015-11-01

    Hospital equipment maintenance information system plays an important role in improving medical treatment quality and efficiency. By requirement analysis of hospital equipment maintenance, the system function diagram is drawed. According to analysis of input and output data, tables and reports in connection with equipment maintenance process, relationships between entity and attribute is found out, and E-R diagram is drawed and relational database table is established. Software development should meet actual process requirement of maintenance and have a friendly user interface and flexible operation. The software can analyze failure cause by statistical analysis. PMID:27066680

  11. PROMSYS, Plant Equipment Maintenance and Inspection Scheduling

    International Nuclear Information System (INIS)

    1 - Description of problem or function: PROMSYS is a computer system designed to automate the scheduling of routine maintenance and inspection of plant equipment. This 'programmed maintenance' provides the detailed planning and accomplishment of lubrication, inspection, and similar repetitive maintenance activities which can be scheduled at specified predetermined intervals throughout the year. The equipment items included are the typical pumps, blowers, motors, compressors, automotive equipment, refrigeration units, filtering systems, machine shop equipment, cranes, elevators, motor-generator sets, and electrical switchgear found throughout industry, as well as cell ventilation, shielding, containment, and material handling equipment unique to nuclear research and development facilities. Four related programs are used to produce sorted schedule lists, delinquent work lists, and optional master lists. Five additional programs are used to create and maintain records of all scheduled and unscheduled maintenance history. 2 - Method of solution: Service specifications and frequency are established and stored. The computer program reviews schedules weekly and prints, on schedule cards, instructions for service that is due the following week. The basic output from the computer program comes in two forms: programmed-maintenance schedule cards and programmed-maintenance data sheets. The data sheets can be issued in numerical building, route, and location number sequence as equipment lists, grouped for work assigned to a particular foreman as the foreman's equipment list, or grouped by work charged to a particular work order as the work-order list. Data sheets grouped by equipment classification are called the equipment classification list

  12. Licencing and Training Reform in the Australian Aircraft Maintenance Industry

    Science.gov (United States)

    Hampson, Ian; Fraser, Doug

    2016-01-01

    The training and licencing of aircraft maintenance engineers fulfils a crucial protective function since it is they who perform and supervise aircraft maintenance and certify that planes are safe afterwards. In Australia, prior to training reform, a trades-based system of aircraft maintenance engineer training existed in an orderly relation with…

  13. Proceedings of FED remote maintenance equipment workshop

    International Nuclear Information System (INIS)

    A workshop was convened in two sessions in January and March 1981, on the remote maintenance equipment for the Fusion Engineering Device (FED). The objectives of the first session were to familiarize the participants with the status of the design of the FED and to develop a remote maintenance equipment list for the FED. The objective of the second session was to have the participants present design concepts for the equipment which had been identified in the first session. The equipment list was developed for general purpose and special purpose equipment. The general purpose equipment was categorized as manipulators and other, while the special purpose equipment was subdivided according to the reactor subsystem it serviced: electrical, magnetic, and nuclear. Both mobile and fixed base manipulators were identified. Handling machines were identified as the major requirement for special purpose equipment

  14. Proceedings of FED remote maintenance equipment workshop

    Energy Technology Data Exchange (ETDEWEB)

    Sager, P.; Garin, J.; Hager, E.R.; Spampinato, P.T.; Tobias, D.; Young, N.

    1981-11-01

    A workshop was convened in two sessions in January and March 1981, on the remote maintenance equipment for the Fusion Engineering Device (FED). The objectives of the first session were to familiarize the participants with the status of the design of the FED and to develop a remote maintenance equipment list for the FED. The objective of the second session was to have the participants present design concepts for the equipment which had been identified in the first session. The equipment list was developed for general purpose and special purpose equipment. The general purpose equipment was categorized as manipulators and other, while the special purpose equipment was subdivided according to the reactor subsystem it serviced: electrical, magnetic, and nuclear. Both mobile and fixed base manipulators were identified. Handling machines were identified as the major requirement for special purpose equipment.

  15. Manufacture and maintenance of laboratory equipment

    Energy Technology Data Exchange (ETDEWEB)

    Kim, J. K.; Whang, C. K.; Lee, J. H.; Youm, K. Y.; Hong, S. H.; Choi, H. Y.; An, C.; Park, I. W.; Kim, K. S.; Lee, W. J.; Yoon, K. B.; Kim, H. W.; Lee, I. B.; Lee, C. K.; Youm, J. H.; Oho, W. H.; Choi, B. K.; Jang, K. D.

    1996-12-01

    This report on the manufacture and maintenance of laboratory equipment contains working contents, scope and contents of a request working to the Machine Shop, also records the principal production design, manufacture contents and a relevant working drawing. The working content and scope of the Machine Shop is to support the successful and convenient performance of the R and D by manufacture and maintenance of all sorts of laboratory equipment. (author). 9 tabs., 12 figs.

  16. Manufacture and maintenance of laboratory equipment

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, Chang Kyu; Hwang, Bong Ha; Lee, Jong Wha; Kim, Jong Kyun; Yeum, Ki Eon; Park, Myung Ku; Hong, Soon Eon; Choi, Ho Young; An, Dae Kyu; An, Choon; Park, In Won; Kim, Kyung Sik; Lee, Won Jae; Yoon, Ki Byung; Kim, Heung Woo; Lee, In Bae; Yeom, Jeong Hyun; Lee, Chul Ku; Sin, Keon Ju; Oh, Wan Ho; Seo, Yong Chil; Yang, Song Yeul; Lee, Young Soon; Choi, Byung Kwon; Chang, Kyung Duk [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1993-12-01

    This report on the manufacture and maintenance of laboratory equipment contains working contents, scope and contents of request working to the machine shop, also records the principal production design, manufacture contents and a relevant working drawing. The working content and scope of the machine shop is to support the successful and convenient performance of the R and D by manufacture and maintenance of all sorts of laboratory equipment. 11 tabs., 3 figs. (Author) .new.

  17. Manufacture and maintenance of laboratory equipment

    International Nuclear Information System (INIS)

    This report on the manufacture and maintenance of laboratory equipment contains working contents, scope and contents of a request working to the Machine Shop, also records the principal production design, manufacture contents and a relevant working drawing. The working content and scope of the Machine Shop is to support the successful and convenient performance of the R and D by manufacture and maintenance of all sorts of laboratory equipment. (author). 9 tabs., 12 figs

  18. SUPREME SUstainable PREdictive Maintenance for manufacturing Equipment

    OpenAIRE

    Sieg-Zieba, Sophie; ADOLF, Thomas; Lucke, Dominik; Haug, Ralf; Boulet, Pierrick; García-Sedano, Javier

    2014-01-01

    Productivity improvements have major impact on economy and competitiveness in European manufacturing industry. Industrial maintenance contributes largely to this competitiveness through reliability and availability of production equipment. Especially in continuous production industries (energy, chemical, food, cement or paper sectors) the ratio "maintenance costs/added value product" is even higher than 25 %. Defect components or process failures can stop the whole production, therefore predi...

  19. Analysis of the Improvement Methods for Equipment Maintenance Support

    Institute of Scientific and Technical Information of China (English)

    ZHANG Rui-chang; ZHAO Song-zheng

    2005-01-01

    According to military requirement, and based on the problems of equipment maintenance support methods in high-tech battles, each element supporting equipment maintenance is analyzed, and the methods for improving equipment maintenance are proposed.

  20. 78 FR 54385 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine

    Science.gov (United States)

    2013-09-04

    ... Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine AGENCY: Federal Aviation Administration... directive (AD) for various aircraft equipped with Rotax Aircraft Engines 912 A Series Engine. This AD...; phone: +43 7246 601 0; fax: +43 7246 601 9130; Internet: http://www.rotax-aircraft-engines.com . You...

  1. Aircraft Scheduled Airframe Maintenance and Downtime Integrated Cost Model

    Directory of Open Access Journals (Sweden)

    Remzi Saltoğlu

    2016-01-01

    Full Text Available Aviation industry has grown rapidly since the first scheduled commercial aviation started one hundred years ago. There is a fast growth in the number of passengers, routes, and frequencies, with high revenues and low margins, which make this industry one of the most challenging businesses in the world. Every operator aims to undertake the minimum operating cost and gain profit as much as possible. One of the significant elements of operator’s operating cost is the maintenance cost. During maintenance scheduling, operator calculates the maintenance cost that it needs to budget. Previous works show that this calculation includes only costs that are directly related to the maintenance process such as cost of labor, material, and equipment. In some cases, overhead cost is also included. Some of previous works also discuss the existence of another cost throughout aircraft downtime, which is defined as cost of revenue loss. Nevertheless, there is not any standard model that shows how to define and calculate downtime cost. For that reason, the purpose of this paper is to introduce a new model and analysis technique that can be used to calculate aircraft downtime cost due to maintenance.

  2. Medical equipment maintenance management and oversight

    CERN Document Server

    Wang, Binseng

    2012-01-01

    In addition to being essential for safe and effective patient care, medical equipment also has significant impact on the income and, thus, vitality of healthcare organizations. For this reason, its maintenance and management requires careful supervision by healthcare administrators, many of whom may not have the technical background to understand all of the relevant factors. This book presents the basic elements of medical equipment maintenance and management required of healthcare leaders responsible for managing or overseeing this function. It will enable these individuals to understand thei

  3. Equipment maintenance support capability evaluation using cloud barycenter evaluation method

    OpenAIRE

    Quan Shi; Cheng Zhang; Hongqiang Gu

    2013-01-01

    Maintenance support is the most important measures to keep equipments having high operational capabilities. Equipment maintenance support capability is an important part of operational capability and the evaluation of equipment maintenance support capability is very important to the establishment of battle effectiveness. The evaluation index system of equipment maintenance support capability is established according to the evaluation index establishing principles. Cloud barycenter evaluation ...

  4. 77 FR 1626 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine

    Science.gov (United States)

    2012-01-11

    ... Equipped With Rotax Aircraft Engines 912 A Series Engine AGENCY: Federal Aviation Administration (FAA), DOT... various aircraft equipped with Rotax Aircraft Engines 912 A series engine. This AD results from mandatory... Rotax Aircraft Engines BRP has issued Alert Service Bulletin ASB- 912-059 and ASB-914-042...

  5. A DSS for capacity planning of aircraft maintenance personnel

    NARCIS (Netherlands)

    M.C. Dijkstra (Matthijs); L.G. Kroon (Leo); J.A.E.E. van Nunen (Jo); M. Salomon (Marc)

    1991-01-01

    textabstractIn this paper we describe a Decision Support System (DSS) that has been developed for the aircraft maintenance department of the Dutch national airline company at the main airport in the Netherlands. The aircraft maintenance department is responsible for carrying out the regular short in

  6. A Study on Simulation of Aircraft Maintenance and Support System

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Maintenance and support are basic elements to realize the effectiveness of aircraft. For basic analysis of the characteristics of an aircraft maintenance and support system, a simulation method is presented in this paper, and the structure and realization ofthe simulation system is discussed.

  7. 75 FR 28504 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines

    Science.gov (United States)

    2010-05-21

    ... Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines AGENCY: Federal... 912 A series engine installed in various aircraft does not have an engine type certificate; instead, the engine is part of the aircraft type design. You may obtain further information by examining...

  8. 76 FR 31465 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine

    Science.gov (United States)

    2011-06-01

    ... Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine AGENCY: Federal Aviation Administration...://www.rotax-aircraft-engines.com . You may review copies of the referenced service information at the... by examining the MCAI in the AD docket. Relevant Service Information Rotax Aircraft Engines...

  9. 14 CFR 121.701 - Maintenance log: Aircraft.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Maintenance log: Aircraft. 121.701 Section... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Records and Reports § 121.701 Maintenance log... have made, a record of that action in the airplane's maintenance log. (b) Each certificate holder...

  10. [Challenges Analysis and Strategic Consideration on Medical Equipment Maintenance].

    Science.gov (United States)

    Deng, Tianhua; Yu, Bo

    2015-03-01

    Expounding the status of the current domestic medical equipment maintenance management, and puting forward the strategic thinking of medical maintenance for the challenges of equipment maintenance management in the hospital. This discussion can be performed to control the maintenance costs of hospital effectively, increase the income and social benefits of the hospital.

  11. Cost management of medical equipment maintenance.

    Science.gov (United States)

    Rocha, L S; Bassani, J W M

    2004-01-01

    In the present study we combine Activity Based Costing (ABC) with a microprocess-based custom-made management system used to control of the medical equipment maintenance service performed by a clinical engineering group in a public health institution in Brazil. Results show the cost of service orders calculated through the allocation of the expenditure per cost center to activities performed during the year 2003. As this model can estimate how the activities affect profitability, managers can use ABC information to interpret possible strategies needed to investigate the viability of cost minimization. PMID:17271045

  12. Modern Maintenance Strategy of Electronic Equipment in Complex Electromechanical System

    Institute of Scientific and Technical Information of China (English)

    LIU Xiao-fang; CHEN Gui-ming; YANG Bao-li; ZHANG Xue-tao; WANG Han-gong

    2004-01-01

    In this paper, the failure mechanism of electronic equipment was analysed. Aiming at the limitation of traditional maintenance modes, moderu maintenance strategy was put forward on the basis of reliability-centered maintenance (RCM) combined with condition-based maintenance (CBM)aud maintenance efficiency review (MER). A maintenance management information system was constructed for electronic equipment for the purpose of failure analysis, reliability evaluation, and maintenance decisions such as time, mode, and plan. The best maintenance time could be predicted with failure analysis and reliability evaluation, which was mainly influenced by environmental stress. Suitable maintenance modes should be determined fiom equipment importance, failure aftereffect, maintenance condition, and economical power so as to ensure equipment reliability and decrease the requirement of the maintenance source.

  13. Personnel Quality Evaluation of Aircraft Maintenance Equipment Based on BP Neural Network%基于BP神经网络的飞机装备维护人员综合素质评估

    Institute of Scientific and Technical Information of China (English)

    陈丽娟; 余隋怀; 初建杰; 卢慧颖

    2011-01-01

    在分析了影响维护人员素质的因素后提出了基于BP神经网络对维护人员综合素质进行评估的方法.利用BP神经网络建立了维护人员综合素质的评价模型,并通过使用改进算法进行了训练.训练测试的结果表明,该方法具有较高的可行性和有效性,为全面评估维护人员的素质提供了一种方法.%The factors that affect the equipment maintenance personnel are comprehensively analyzed, and a method is proposed to evaluate comprehensive quality of equipment maintenance personnel based on BP neural network.Evaluation model of equipment maintenance personnel is established by using BP neural network, and the improved algorithm is used for training.Training test results show that this method has a high feasibility and effectiveness, and provides a way to assess the quality of equipment maintenance personnel comprehensively.

  14. Towards structured integration of maintenance knowledge in industrial equipment design

    OpenAIRE

    Mulder, W; Basten, R.J.I.; Jauregui Becker, J.M.; Dongen, van, C.J.J.; Lindemann, Udo; Venkataraman, Srinivasan; Kim, Yong Se

    2013-01-01

    Industrial equipment requires maintenance to remain operational. The level of maintenance that is required, and how easily it can be executed, is affected by the characteristics of the equipment. Therefore, design decisions have a strong influence on the effectiveness and efficiency of the maintenance process. Ideally, the design of the equipment should be aligned with the design of the maintenance service. Relevant knowledge about the relationships between them is available in both the liter...

  15. 75 FR 50865 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines

    Science.gov (United States)

    2010-08-18

    ... Equipped With Rotax Aircraft Engines 912 A Series Engines AGENCY: Federal Aviation Administration (FAA... 912 A series engine installed in various aircraft does not have an engine type certificate; instead, the engine is part of the aircraft type design. Comments We gave the public the opportunity...

  16. 75 FR 70098 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines

    Science.gov (United States)

    2010-11-17

    ... Equipped With Rotax Aircraft Engines 912 A Series Engines AGENCY: Federal Aviation Administration (FAA... Aircraft Engines 912 A series engine with a crankcase assembly S/N up to and including S/N 27811, certificated in any category: ] Type certificate holder Aircraft model Engine model Aeromot-Industria...

  17. 75 FR 32315 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines

    Science.gov (United States)

    2010-06-08

    ... Equipped With Rotax Aircraft Engines 912 A Series Engines AGENCY: Federal Aviation Administration (FAA... certificated in the United States. However, the Model 912 A series engine installed in various aircraft does not have an engine type certificate; instead, the engine is part of the aircraft type design. You...

  18. 76 FR 40219 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine

    Science.gov (United States)

    2011-07-08

    ... Equipped With Rotax Aircraft Engines 912 A Series Engine AGENCY: Federal Aviation Administration (FAA), DOT... Rotax Aircraft Engines Mandatory Service Bulletin SB-912-058 SB-914-041, dated April 15, 2011, listed in... 601 0; fax: +43 7246 601 9130; Internet: http://www.rotax-aircraft-engines.com . You may review...

  19. Availability of aircraft subject to imperfect preventive maintenance

    OpenAIRE

    Bond, Michael J.

    1990-01-01

    Approved for public release; distribution unlimited. This thesis studies the impact that imperfect preventive maintenance has on the availability of aircraft and, as a result, the decrease in operational effectiveness. We further consider the practicality of using an imperfect preventive maintenance model for determining preventive maintenance scheduling. Simulation was used to recreate the operational environment in order to study the effects that levels of imperfect preventive maintenanc...

  20. 33 CFR 104.260 - Security systems and equipment maintenance.

    Science.gov (United States)

    2010-07-01

    ... maintenance. 104.260 Section 104.260 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... systems and equipment maintenance. (a) Security systems and equipment must be in good working order and... procedures for identifying and responding to security system and equipment failures or malfunctions....

  1. 33 CFR 105.250 - Security systems and equipment maintenance.

    Science.gov (United States)

    2010-07-01

    ... maintenance. 105.250 Section 105.250 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... systems and equipment maintenance. (a) Security systems and equipment must be in good working order and... include procedures for identifying and responding to security system and equipment failures...

  2. Modeling and Analysis of Complex Equipment Maintenance Dynamics

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    An equipment maintenance system is naturally a complex dynamical system. The effective maintenance management must be based on the knowledge of the system's intrinsic dynamics. And the structure of the maintenance system determines its behavior. This paper analyzes the basic structures and elements of a maintenance system for complex multi-components equipment. The maintenance system is considered as a dynamic system whose behavior is influenced by its structure's feedback and interaction, and the system's available resources. Building the dynamical model with Simulink, we show some results about the maintenance system's nonlinear dynamics, which are never given by stochastic process methods. The model can be used for understanding and determining maintenance system behavior, towards which operational adjustments of maintenance infrastructure, precise prediction of maintenance requirements and timely supply of maintenance resources can be made in a more informed way.

  3. Corrosion Sensor Development for Condition-Based Maintenance of Aircraft

    Directory of Open Access Journals (Sweden)

    Gino Rinaldi

    2012-01-01

    Full Text Available Aircraft routinely operate in atmospheric environments that, over time, will impact their structural integrity. Material protection and selection schemes notwithstanding, recurrent exposure to chlorides, pollution, temperature gradients, and moisture provide the necessary electrochemical conditions for the development and profusion of corrosion in aircraft structures. For aircraft operators, this becomes an important safety matter as corrosion found in a given aircraft must be assumed to be present in all of that type of aircraft. This safety protocol and its associated unscheduled maintenance requirement drive up the operational costs of the fleet and limit the availability of the aircraft. Hence, there is an opportunity at present for developing novel sensing technologies and schemes to aid in shifting time-based maintenance schedules towards condition-based maintenance procedures. In this work, part of the ongoing development of a multiparameter integrated corrosion sensor is presented. It consists of carbon nanotube/polyaniline polymer sensors and commercial-off-the-shelf sensors. It is being developed primarily for monitoring environmental and material factors for the purpose of providing a means to more accurately assess the structural integrity of aerospace aluminium alloys through fusion of multiparameter sensor data. Preliminary experimental test results are presented for chloride ion concentration, hydrogen gas evolution, humidity variations, and material degradation.

  4. Modern Communication Devices in the General Aviation Aircraft Maintenance

    Directory of Open Access Journals (Sweden)

    Martin Novák

    2016-01-01

    Full Text Available The purpose of this article is to design a software that enables an integration of modern communication devices in the process of general aviation aircraft maintenance. The theoretical part deals with the legislative requirements of both maintenance and management processes for continuing airworthiness. The practical part focusses on software design and automation of the processes. An important part of the article is a chapter about economic evaluation based on the proposal of the solution.

  5. 33 CFR 106.255 - Security systems and equipment maintenance.

    Science.gov (United States)

    2010-07-01

    ... maintenance. 106.255 Section 106.255 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... Shelf (OCS) Facility Security Requirements § 106.255 Security systems and equipment maintenance. (a... procedures for identifying and responding to security system and equipment failures or malfunctions....

  6. Towards structured integration of maintenance knowledge in industrial equipment design

    NARCIS (Netherlands)

    Mulder, W.; Basten, R.J.I.; Jauregui Becker, J.M.; Dongen, van L.A.M.; Lindemann, Udo; Venkataraman, Srinivasan; Kim, Yong Se

    2013-01-01

    Industrial equipment requires maintenance to remain operational. The level of maintenance that is required, and how easily it can be executed, is affected by the characteristics of the equipment. Therefore, design decisions have a strong influence on the effectiveness and efficiency of the maintenan

  7. Quality Requirements Regarding Aircraft Maintenance and Repair Services

    Directory of Open Access Journals (Sweden)

    Woźny Piotr

    2014-12-01

    Full Text Available During operation, aircraft (AC are subject to use, maintenance, repair and disposal. Each of those processes requires adequate quality. This study presents requirements related to quality management with which an AC maintenance and repair sub-system ought to comply. Documents containing requirements pertaining to both management and technical aspects have been analysed. Applicable standards and regulations affecting the AC repair process quality assurance have been presented. A description of standards observance of which is required to ensure effective operation of modern AC maintenance and repair subsystems significantly affecting maintenance of the AC required airworthiness has been included. Complexity of the decision-taking process pertaining to AC maintenance and repair within the airworthiness maintenance sub-system has been presented

  8. A Case Study of Total Productive Maintenance Implementation in an Aircraft Maintenance Company

    OpenAIRE

    Vayvay, Özalp; Simsit, Zeynep Tuğçe; Mucukoglu, Fatma Müjde

    2013-01-01

    Total productive maintenance was introduced to USA in the late 1980s as a companywide strategy to increase the effectiveness of production environment. In recent years, many companies have attempted to implement this strategy to maximize equipment’s effectiveness and productivity, and minimize machine losses. In this study, main concern is how a aircraft maintenance company can apply TPM, in an efficient way. In case study we determined the steps of the maintenance proscess and then ana...

  9. Examining the Relationship Between Passenger Airline Aircraft Maintenance Outsourcing and Aircraft Safety

    Science.gov (United States)

    Monaghan, Kari L.

    The problem addressed was the concern for aircraft safety rates as they relate to the rate of maintenance outsourcing. Data gathered from 14 passenger airlines: AirTran, Alaska, America West, American, Continental, Delta, Frontier, Hawaiian, JetBlue, Midwest, Northwest, Southwest, United, and USAir covered the years 1996 through 2008. A quantitative correlational design, utilizing Pearson's correlation coefficient, and the coefficient of determination were used in the present study to measure the correlation between variables. Elements of passenger airline aircraft maintenance outsourcing and aircraft accidents, incidents, and pilot deviations within domestic passenger airline operations were analyzed, examined, and evaluated. Rates of maintenance outsourcing were analyzed to determine the association with accident, incident, and pilot deviation rates. Maintenance outsourcing rates used in the evaluation were the yearly dollar expenditure of passenger airlines for aircraft maintenance outsourcing as they relate to the total airline aircraft maintenance expenditures. Aircraft accident, incident, and pilot deviation rates used in the evaluation were the yearly number of accidents, incidents, and pilot deviations per miles flown. The Pearson r-values were calculated to measure the linear relationship strength between the variables. There were no statistically significant correlation findings for accidents, r(174)=0.065, p=0.393, and incidents, r(174)=0.020, p=0.793. However, there was a statistically significant correlation for pilot deviation rates, r(174)=0.204, p=0.007 thus indicating a statistically significant correlation between maintenance outsourcing rates and pilot deviation rates. The calculated R square value of 0.042 represents the variance that can be accounted for in aircraft pilot deviation rates by examining the variance in aircraft maintenance outsourcing rates; accordingly, 95.8% of the variance is unexplained. Suggestions for future research include

  10. Hierarchical Colored Timed Petri Nets for Maintenance Process Modeling of Civil Aircraft

    Institute of Scientific and Technical Information of China (English)

    FU Cheng-cheng; SUN You-chao; LU Zhong

    2008-01-01

    Civil aircraft maintenance process simulation model is an effective method for analyzing the maintainability of a civil aircraft. First, we present the Hierarchical Colored Timed Petri Nets for maintenance process modeling of civil aircraft. Then, we expound a general method of civil aircraft maintenance activities, determine the maintenance level for decomposition, and propose the methods of describing logic of relations between the maintenance activities based on Petri Net. Finally, a time Colored Petri multi-level network modeling and simulation procedures and steps are given with the maintenance example of the landing gear burst tire of a certain type of aircraft. The feasibility of the method is proved by the example.

  11. 14 CFR 135.443 - Airworthiness release or aircraft maintenance log entry.

    Science.gov (United States)

    2010-01-01

    ... maintenance log entry. 135.443 Section 135.443 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... release or aircraft maintenance log entry. (a) No certificate holder may operate an aircraft after... (2) An appropriate entry in the aircraft maintenance log. (b) The airworthiness release or log...

  12. 14 CFR 91.1443 - CAMP: Airworthiness release or aircraft maintenance log entry.

    Science.gov (United States)

    2010-01-01

    ... maintenance log entry. 91.1443 Section 91.1443 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... aircraft maintenance log entry. (a) No program aircraft maintained under a CAMP may be operated after... release; or (2) An appropriate entry in the aircraft maintenance log. (b) The airworthiness release or...

  13. 40 CFR 141.804 - Aircraft water system operations and maintenance plan.

    Science.gov (United States)

    2010-07-01

    ... carrier operations and maintenance program (14 CFR part 43, 14 CFR part 91, 14 CFR part 121). (b) Each... § 141.804 Aircraft water system operations and maintenance plan. (a) Each air carrier must develop and implement an aircraft water system operations and maintenance plan for each aircraft water system that...

  14. A Grounded Theory Study of Aircraft Maintenance Technician Decision-Making

    Science.gov (United States)

    Norcross, Robert

    Aircraft maintenance technician decision-making and actions have resulted in aircraft system errors causing aircraft incidents and accidents. Aircraft accident investigators and researchers examined the factors that influence aircraft maintenance technician errors and categorized the types of errors in an attempt to prevent similar occurrences. New aircraft technology introduced to improve aviation safety and efficiency incur failures that have no information contained in the aircraft maintenance manuals. According to the Federal Aviation Administration, aircraft maintenance technicians must use only approved aircraft maintenance documents to repair, modify, and service aircraft. This qualitative research used a grounded theory approach to explore the decision-making processes and actions taken by aircraft maintenance technicians when confronted with an aircraft problem not contained in the aircraft maintenance manuals. The target population for the research was Federal Aviation Administration licensed aircraft and power plant mechanics from across the United States. Nonprobability purposeful sampling was used to obtain aircraft maintenance technicians with the experience sought in the study problem. The sample population recruitment yielded 19 participants for eight focus group sessions to obtain opinions, perceptions, and experiences related to the study problem. All data collected was entered into the Atlas ti qualitative analysis software. The emergence of Aircraft Maintenance Technician decision-making themes regarding Aircraft Maintenance Manual content, Aircraft Maintenance Technician experience, and legal implications of not following Aircraft Maintenance Manuals surfaced. Conclusions from this study suggest Aircraft Maintenance Technician decision-making were influenced by experience, gaps in the Aircraft Maintenance Manuals, reliance on others, realizing the impact of decisions concerning aircraft airworthiness, management pressures, and legal concerns

  15. Testing, validation, and verification of an expert system advisor for aircraft maintenance scheduling (ESAAMS).

    OpenAIRE

    Andrieu, Christian W.

    1991-01-01

    Aircraft maintenance control operates in a dynamic, high intensity environment. Maintenance work priorities are made several times daily under extremely demanding and time sensitive conditions. the person responsible for scheduling aircraft, usually the Maintenance Master Chief, draws upon years of experience when assigning priorities for both scheduled and unscheduled maintenance. An Expert System Advisor for Aircraft Maintenance Scheduling (ESAAMS) is being implemented at the Naval Postg...

  16. Remote maintenance systems requirements are being developed to provide design guidelines for machine components, to define maintenance interfaces, and to quantify maintenance equipment and procedures needed

    International Nuclear Information System (INIS)

    Remote maintenance systems requirements are being developed to provide design guidelines for machine components, to define maintenance interfaces, and to quantify maintenance equipment and procedures needed

  17. Study on Equipment Selective Maintenance Strategy Based on Performance

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    In this paper, an equipment selective maintenance strategy based on performance is brought forward according to the situation in China, in which reliability, computer technology,condition monitoring and management theory is applied. The theory points of the strategy are put forward. The maintenance strategy has been applied in.mine hoist system.

  18. Neutron radiography for maintenance inspection of military and civilian aircraft

    International Nuclear Information System (INIS)

    As part of a program to develop new and advanced nondestructive inspection techniques, a series of projects has been conducted to develop and evaluate neutron radiography as a nondestructive inspection tool. A major portion of this effort has been directed toward the application of neutron radiography as a maintenance inspection tool for military and civilian aircraft. The availability of 252Cf as a neutron source has enabled the use of neutron-radiography systems in normal maintenance environments for the inspection of flight-line aircraft with a minimum of interference. Neutron radiography has been demonstrated to be a powerful nondestructive inspection tool for a variety of applications involving the detection of organic or non-metallic compounds. Its ability to detect surface and subsurface corrosion in aircraft structure is unmatched by any other inspection technique. This capability of detecting corrosion without component disassembly is particularly significant when corrosion is hidden behind thick metallic structural members. The neutron radiographic technique has been applied successfully to detect corrosion in wing tanks, rear stabilators, aft spar, starboard and port wing, rudder, fuselage skin, and nose landing gears of a variety of fixed-wind aircraft, as well as rotary blades and rotary tail flaps of heliocopters

  19. Maintenance and fabrication of electronic equipment

    Energy Technology Data Exchange (ETDEWEB)

    Han, Kwang Soo; Jeong, Jong Eun; Park, Kwang Hyun; Hong, Suk Bong; Moon, Je Sun; Choi, Myung Jin; Kim, Seung Bok; Kim, Jeong Bok [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1995-12-01

    Solving the maintenance and repair problems of electronic instruments, we have supported the research and development work, and reduced operation costs of the pilot plants in KAERI. In addition, we have improved the maintainability of instruments to use effectively. 18 tabs., 17 figs., 13 refs. (Author) .new.

  20. Maintenance and fabrication of electronic equipment

    Energy Technology Data Exchange (ETDEWEB)

    Han, Kwang Soo; Jeong, Jong Eun; Park, Kwang Hyeon; Hong, Suk Bong; Moon, Je Sun; Choi, Myeong Jin; Kim, Seung Bok; Kim, Jeong Bok [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1994-12-01

    Solving the maintenance and repair problems of electronic instruments, we have supported the research and development work, and reduced operation costs of the pilot plants in KAERI. In addition, we have imposed the maintainability of instruments to use effectively. 15 tabs., 14 figs., 14 refs. (Author) .new.

  1. Equipment maintenance of Rokkasho Reprocessing Plant

    International Nuclear Information System (INIS)

    The Rokkasho Reprocessing Plant is the first commercial reprocessing plant in Japan and has adopted the best technology from home and abroad. The Rokkasho Reprocessing Plant is composed of approximately 150,000 devices and buildings are located separately according to process. In this paper, we introduce the outline of reprocessing process and maintenance activities for the Rokkasho Reprocessing Plant. (author)

  2. Maintenance and fabrication of electronic equipment

    International Nuclear Information System (INIS)

    Solving the maintenance and repair problems of electronic instruments, we have supported the research and development work, and reduced operation cost of the pilot plants in KAERI. In addition, we have improved the maintainability of instruments to use effectively. (author). 10 refs., 18 tabs., 8 figs

  3. Maintenance and fabrication of electronic equipment

    International Nuclear Information System (INIS)

    Providing technical support to the maintenance and repair problems of electronic instruments, we have assisted the research and development work, and reduced operation cost of the pilot plants in KAERI. In addition, we have improved the performance of the data processing system of RMS, and also modified the cyclic box using PLC which is a facility for airborne monitoring in radiation area. (author)

  4. Maintenance and fabrication of electronic equipment

    Energy Technology Data Exchange (ETDEWEB)

    Han, Kwang Soo; Chung, Chong Eun; Park, Kwang Hyeon; Hong, Suk Boong; Moon, Je Sun; Choi, Myung Jin; Kim, Seung Bok; Kim, Jung Bok

    1996-12-01

    Solving the maintenance and repair problems of electronic instruments, we have supported the research and development work, and reduced operation cost of the pilot plants in KAERI. In addition, we have improved the maintainability of instruments to use effectively. (author). 10 refs., 18 tabs., 8 figs.

  5. Maintenance and fabrication of electronic equipment

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Chong Eun; Moon, Byung Soo; Hong, Suk Boong; Kim, Jung Bok

    1999-12-01

    Providing technical support to the maintenance and repair problems of electronic instruments, we have assisted the research and development work, and reduced operation cost of the pilot plants in KAERI. In addition, we have improved the performance of the data processing system of RMS, and also modified the cyclic box using PLC which is a facility for airborne monitoring in radiation area. (author)

  6. Maintenance and fabrication of electronic equipment

    CERN Document Server

    Chung, C E; Kim, J B; Kim, Y K; Moon, B S

    2001-01-01

    Providing technical support to the maintenance and repair problems of electronic instruments, we have assisted the research and development work, and made it done effectively in KAERI. In addition, we have improved the performance of the alarming system of the unit211 in PIEF and the lamp control module(IND100) in RWTF using PLCs. And also, electronic circuit modules for MAFF system which is an instrument for airborne monitoring in radiation area have been designed and fabricated.

  7. Discussion on Management Model of Medical Equipment Maintenance in Hospital

    Institute of Scientific and Technical Information of China (English)

    ZHOU Qiang; DENG Wen-yan; CAI Kui

    2016-01-01

    With the development of technology, medical equipment plays a more important role in the modern hospital. Medical equipment provides images, physiological results or other schematics of the patients to help doctors deal with the routines. It is also the major tool to the lab assistant in the clinical teaching and studies. It becomes one of a symbol of the technological level in modern hospital. The director of the hospital should establish an efficacious management pattern to manage the medical equipment, so that it will be operated in good condition to insure the safety of the patients. Since the maintenance is an important part of medical equipment management, it is significant that the hospital should establish a system to fit for itself. The study reviews the issues in hospital medical equipment maintenance management, the development of the maintenance management model and the characteristics, as well as the status at home and abroad. The research has been finished by using literature research method, questionnaire survey method and data analysis method. Then we analyze the current status of hospital medical equipment maintenance management model to find the problems. Based on the authentic and effective data from the survey, we can deduce the overview about the maintenance model in Beijing. The paper discusses the advantages and the disadvantages between the different model, and it makes suggestions on the follow aspects, such as system management, quality management, personnel management, cost management, information management perspective.

  8. Maintenance and fabrication of electronic equipment

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Chong Soo; Moon, Byung Soo; Hong, Suk Boong; Kim, Yong Keun; Kim, Jung Bok

    2000-12-01

    Providing technical support to the maintenance and repair problems of electronic instruments, we have assisted the research and development work, and reduced operation cost of the pilot plants in KAERI. In addition, we have improved the performance of the data processing system of RMS, and modified the cyclic box and IND100 using PLCs which are a facility for airborne monitoring in radiation area and lamp control modules of radiation monitoring control panel respectively. And also, a gamma-ray densitometer for KNGR has been designed and fabricated.

  9. Maintenance and Fabrication of Electronic Equipment

    International Nuclear Information System (INIS)

    Development and its application of a wire-mesh sensor could contribute to the safe operation of nuclear power plants and could be used to develop other precision sensors for nuclear applications. Development of a gamma monitoring system could be used not only in nuclear facility but also in other radiation application institution such as hospitals, universities etc. The technology of multi-channel ASIC for nuclear radiation detector could be adapted to development of radiation equipment for image processing, position of detection, NDT etc., and also the technique will be expected to contribute to increase the use of radiation technology to industrial applications

  10. Opportunistic maintenance and adaptation of warranty maintenance tasks for Power Plant equipment

    Directory of Open Access Journals (Sweden)

    P. McGibney

    2016-08-01

    Full Text Available This paper makes a link between opportunistic maintenance literature and warranty analysis of a power plant. A new plant warranty maintenance tasks are observed over a two year period. The main aim is to see how opportunistic maintenance could be incorporated when the warranty period has elapsed. The paper examine the warranty period maintenance task list and propose adequate methods for assessing opportunistic maintenance as a preventive maintenance task in order to ensure reliability and availability of the plant equipment. Statistical approach is used to give an insight to the plant equipment status and a modeling approach is proposed to also assess maintenance information defined by experts in the context of actual operating regimes. This study focuses on the power plant‟s critical equipment. Failure Mode and Effect Analysis (FMEA is conducted on the power plant Booster Fans. This gives an insight about equipment failure mode patterns and maintenance requirements. A simulation example is presented based in the failure modes results obtained and a graphical display of optimum preventive maintenance schedule cost curves is also presented.

  11. Equipment reliability process improvement and preventive maintenance optimization

    Energy Technology Data Exchange (ETDEWEB)

    Darragi, M.; Georges, A. [Univ. de Quebec a Trois Rivieres, Trois Rivieres, Quebec (Canada); Vaillancourt, R.; Komljenovic, D.; Croteau, M. [Gentilly 2 Nuclear Generating Station, Hydro Quebec, Quebec (Canada)

    2004-07-01

    The Gentilly-2 Nuclear Power Plant wants to optimize its preventive maintenance program through an Integrated Equipment Reliability Process. All equipment reliability related activities should be reviewed and optimized in a systematic approach especially for aging plants such as G2. This new approach has to be founded on best practices methods with the purpose of the rationalization of the preventive maintenance program and the performance monitoring of on-site systems, structures and components (SSC). A rational preventive maintenance strategy is based on optimized task scopes and frequencies depending on their applicability, critical effects on system safety and plant availability as well as cost-effectiveness. Preventive maintenance strategy efficiency is systematically monitored through degradation indicators. (author)

  12. An Optimization Method for Condition Based Maintenance of Aircraft Fleet Considering Prognostics Uncertainty

    OpenAIRE

    Qiang Feng; Yiran Chen; Bo Sun; Songjie Li

    2014-01-01

    An optimization method for condition based maintenance (CBM) of aircraft fleet considering prognostics uncertainty is proposed. The CBM and dispatch process of aircraft fleet is analyzed first, and the alternative strategy sets for single aircraft are given. Then, the optimization problem of fleet CBM with lower maintenance cost and dispatch risk is translated to the combinatorial optimization problem of single aircraft strategy. Remain useful life (RUL) distribution of the key line replaceab...

  13. Head-end reprocessing equipment remote maintenance demonstration

    International Nuclear Information System (INIS)

    Prototype equipment for reprocessing breeder reactor nuclear fuel was installed in the Remote Operation and Maintenance Demonstration (ROMD) area of the Consolidated Fuel Reprocessing Program (CFRP) facility at the Oak Ridge National Laboratory (ORNL) in order to evaluate the design of this equipment in a cold mock-up of a remotely maintained hot cell. This equipment included the Remote Disassembly System (RDS) and the Remote Shear System (RSS). These systems were disassembled and reassembled remotely by using the extensive remote handling systems that are installed in this simulated hot-cell environment. 5 refs., 5 figs

  14. 47 CFR 17.56 - Maintenance of lighting equipment.

    Science.gov (United States)

    2010-10-01

    ... LIGHTING OF ANTENNA STRUCTURES Specifications for Obstruction Marking and Lighting of Antenna Structures § 17.56 Maintenance of lighting equipment. (a) Replacing or repairing of lights, automatic indicators or automatic control or alarm systems shall be accomplished as soon as practicable. (b) The...

  15. A multi-agent based intelligent configuration method for aircraft fleet maintenance personnel

    Directory of Open Access Journals (Sweden)

    Feng Qiang

    2014-04-01

    Full Text Available A multi-agent based fleet maintenance personnel configuration method is proposed to solve the mission oriented aircraft fleet maintenance personnel configuration problem. The maintenance process of an aircraft fleet is analyzed first. In the process each aircraft contains multiple parts, and different parts are repaired by personnel with different majors and levels. The factors and their relationship involved in the process of maintenance are analyzed and discussed. Then the whole maintenance process is described as a 3-layer multi-agent system (MAS model. A communication and reasoning strategy among the agents is put forward. A fleet maintenance personnel configuration algorithm is proposed based on contract net protocol (CNP. Finally, a fleet of 10 aircraft is studied for verification purposes. A mission type with 3 waves of continuous dispatch is imaged. Compared with the traditional methods that can just provide configuration results, the proposed method can provide optimal maintenance strategies as well.

  16. Maintenance program developmentandImport /Export of Aircraft in USA

    OpenAIRE

    Takele, Teklu

    2009-01-01

    AbstractThis thesis discuss how United Parcel Service (UPS) develop its aircraft maintenanceprogram after import of McDonnell Douglas MD-11aircraft and the process of exporting newMD-11 aircraft from manufacturer in USA to European operator as passenger aircraft. It alsodiscusses the process of importing the same types of aircraft as freight carrier. The aircraftundergo, through different modifications at Singapore Technologies Aerospace (STA)conversion from passenger to freight carrier, a pr...

  17. Maintenance of electromechanical equipment in quality organization under operating conditions

    International Nuclear Information System (INIS)

    The paper outlines the principles adopted by the Thermal Production Service of Electricite de France on the basis of the experience of the first years of operation of its 900 MW(e)PWR units for the purpose of improving quality organization in operating conditions in respect of the maintenance of electromechanical safety equipment. This organization is based on application of the usual principles for quality assurance, adapted in accordance with current French regulations. The paper first recalls the now traditional methods of applying the principles of quality organization in the area of equipment maintenance. It then defines particular so-called ''delicate'' activities which, in accordance with the above regulations, are subjected to additional quality organizational procedures; this applies in particular to the area of pre-maintenance preparation and studies and to the control exercised by the French safety authorities over the execution of those activities. The paper explains how the application of the regulations improves maintenance practices compared with standard quality organization. It describes how the attempt to establish a frontier between these two types of activity (current and ''delicate'') has led to the definition of a classification criterion which is technically correct and simple to use and is based on the professional skills of those performing each activity. The paper then describes in greater detail the principal rules for the performance of those tasks which come under the standard organization and those to which more stringent criteria apply. Lastly, it explains the thinking behind equipment surveillance programmes and the analysis of anomalies discovered through surveillance measures or brought to light by operating incidents, the aim of these being to benefit from the experience gained

  18. 49 CFR 1242.42 - Administration, repair and maintenance, machinery repair, equipment damaged, dismantling retired...

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Administration, repair and maintenance, machinery repair, equipment damaged, dismantling retired property, fringe benefits, other casualties and insurance... maintenance, machinery repair, equipment damaged, dismantling retired property, fringe benefits,...

  19. 33 CFR 150.502 - What are the maintenance and repair requirements for lifesaving equipment?

    Science.gov (United States)

    2010-07-01

    ... onboard maintenance and repair of the port's lifesaving equipment. The instructions must include the... deepwater port may have its own onboard planned maintenance program for maintenance and repair that...

  20. 30 CFR 57.3460 - Maintenance between machinery or equipment and ribs.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Maintenance between machinery or equipment and... NONMETAL MINES Ground Control Precautions-Underground Only § 57.3460 Maintenance between machinery or equipment and ribs. Persons shall not perform maintenance work between machinery or equipment and...

  1. Probe on network-based collaborative maintenance mode for after-sales equipment

    OpenAIRE

    Sheng Tianwen; Chen Xiaohui; Yi Shuping; Gao Xiangbo; Ye Qiang; Lee Jay

    2009-01-01

    As the structure and technologies of modern equipment become more and more complicated and it is hard to improve equipment's after-sales maintenance service under traditional mode, in this text, network-based collaborative maintenance mode for after-sales equipment was proposed. Specifically, under the leading of equipment manufacturer under guaranty or equipment user outside guaranty, manufacturer, user, designers, maintainers, spare parts suppliers and maintenance experts were integrated to...

  2. Corrosion Sensor Development for Condition-Based Maintenance of Aircraft

    OpenAIRE

    Gino Rinaldi; Trisha Huber; Heather McIntosh; Les Lebrun; Heping Ding; John Weber

    2012-01-01

    Aircraft routinely operate in atmospheric environments that, over time, will impact their structural integrity. Material protection and selection schemes notwithstanding, recurrent exposure to chlorides, pollution, temperature gradients, and moisture provide the necessary electrochemical conditions for the development and profusion of corrosion in aircraft structures. For aircraft operators, this becomes an important safety matter as corrosion found in a given aircraft must be assumed to be p...

  3. Probe on Network-based Collaborative Maintenance Model for After-sales Equipment

    Institute of Scientific and Technical Information of China (English)

    CHEN Xiaohui; SHENG Tianwen; YI Shuping

    2009-01-01

    In order to make equipment run safely, economically and continuously, some new maintenance models were put forward to improve the equipment after-sale maintenance service, such as E-maintenance, third-party maintenance, etc. To certain extent, the models solved the problem of the distance between the manufacturer and customer and the dispersion of the maintenance technologies, however, those resources are still widely distributed and do not collaborate efficiently. In this paper, a network-based collaborative maintenance service model was proposed for after-sales equipment to solve the problem of maintenance resources integration. Concretely, equipment designers, maintainers, spare parts suppliers and maintenance experts were grouped together to establish dynamic alliance. The leader of the alliance is the manufacturer under guaranty period or equipment user exceeding the guaranty period. The process of maintenance service was divided into three stages which are fault diagnosis, maintenance decision and maintenance implementation. The sub-alliances were established to carry out maintenance work at each stage. In addition, the business process of network-based collaborative maintenance was analyzed and collaborative business system for equipment's after-sales collaborative maintenance service was designed. In the end, an informational economics model of network-based collaborative maintenance was established to demonstrate the effectiveness of this maintenance model.

  4. Methodology for development of condition-based maintenance program for surface drilling equipment

    OpenAIRE

    Sizov, Ilya

    2012-01-01

    Maintenance is the essential part of production process in today’s industry. There are several philosophies (e.g. corrective maintenance and preventive maintenance) and concepts (e.g. overall equipment efficiency and reliability-centered maintenance) that are applied in industry. The challenge here is to choose the proper ones for the specific operation conditions and equipment. The solution to this challenge can be found through implementation of a reliability-centered mainten...

  5. Predictive maintenance of critical equipment in industrial processes

    Science.gov (United States)

    Hashemian, Hashem M.

    This dissertation is an account of present and past research and development (R&D) efforts conducted by the author to develop and implement new technology for predictive maintenance and equipment condition monitoring in industrial processes. In particular, this dissertation presents the design of an integrated condition-monitoring system that incorporates the results of three current R&D projects with a combined funding of $2.8 million awarded to the author by the U.S. Department of Energy (DOE). This system will improve the state of the art in equipment condition monitoring and has applications in numerous industries including chemical and petrochemical plants, aviation and aerospace, electric power production and distribution, and a variety of manufacturing processes. The work that is presented in this dissertation is unique in that it introduces a new class of condition-monitoring methods that depend predominantly on the normal output of existing process sensors. It also describes current R&D efforts to develop data acquisition systems and data analysis algorithms and software packages that use the output of these sensors to determine the condition and health of industrial processes and their equipment. For example, the output of a pressure sensor in an operating plant can be used not only to indicate the pressure, but also to verify the calibration and response time of the sensor itself and identify anomalies in the process such as blockages, voids, and leaks that can interfere with accurate measurement of process parameters or disturb the plant's operation, safety, or reliability. Today, process data are typically collected at a rate of one sample per second (1 Hz) or slower. If this sampling rate is increased to 100 samples per second or higher, much more information can be extracted from the normal output of a process sensor and then used for condition monitoring, equipment performance measurements, and predictive maintenance. A fast analog-to-digital (A

  6. Supporting developers in addressing maintenance aspects: an empirical study in the industrial equipment manufacturing industry

    NARCIS (Netherlands)

    Mulder, Wienik

    2016-01-01

    Addressing maintenance aspects has become increasingly important in development projects of industrial equipment. Developers of such equipment need to address the maintenance aspects in order to achieve competitive equipment and service offerings. This research focuses on the identification of the m

  7. Application of Artificial Neural Networks in Aircraft Maintenance, Repair and Overhaul Solutions

    CERN Document Server

    Paul, Soumitra; Jasani, Devashish; Dudhwewala, Rachit; Gowda, Vijay Bore; Nair, T R Gopalakrishnan

    2010-01-01

    This paper reviews application of Artificial Neural Networks in Aircraft Maintenance, Repair and Overhaul (MRO). MRO solutions are designed to facilitate the authoring and delivery of maintenance and repair information to the line maintenance technicians who need to improve aircraft repair turn around time, optimize the efficiency and consistency of fleet maintenance and ensure regulatory compliance. The technical complexity of aircraft systems, especially in avionics, has increased to the point at which it poses a significant troubleshotting and repair challenge for MRO personnel. As per the existing scenario, the MRO systems in place are inefficient. In this paper, we propose the centralization and integration of the MRO database to increase its efficiency. Moreover the implementation of Artificial Neural Networks in this system can rid the system of many of its deficiencies. In order to make the system more efficient we propose to integrate all the modules so as to reduce the efficacy of repair.

  8. Probe on network-based collaborative maintenance mode for after-sales equipment

    Directory of Open Access Journals (Sweden)

    Sheng Tianwen

    2009-01-01

    Full Text Available As the structure and technologies of modern equipment become more and more complicated and it is hard to improve equipment's after-sales maintenance service under traditional mode, in this text, network-based collaborative maintenance mode for after-sales equipment was proposed. Specifically, under the leading of equipment manufacturer under guaranty or equipment user outside guaranty, manufacturer, user, designers, maintainers, spare parts suppliers and maintenance experts were integrated to establish dynamic alliance to carry out maintenance operations together based on network. In addition, the business process of network-based collaborative maintenance was analyzed and an information economics model of network-based collaborative maintenance was established to demonstrate the effectiveness of this maintenance mode.

  9. The Efficiency Analysis and A Market Decision Model on Equipment Maintenance

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    This paper presents and analyses the internal and external efficiencies of equipment maintenance, and presents that the objective of maintenance is the maximum external efficiency. It defines generalized reliability degree of equipment and deduces the correspondent calculating method. It overcomes the defect that traditional calculating method of reliability degree has, which only considers the factor of time not function, therefore we establish a market decision model of equipment maintenance based on it. This model can determine the marginal efficiency of maintenance investment and critical value of generalized reliability degree when it reaches break-even point. After combining the equipment maintenance with economical benefit of enterprise and marketing situation of products, an optimal maintenance strategy will be got. It provides a new method for scientific and rational decisions of equipment maintenance.``

  10. Configuration control during maintenance of safety related equipment

    International Nuclear Information System (INIS)

    Possibly the most important aspect of performing maintenance of safety related equipment is maintaining the component's original design basis. Assuring that the repaired item will perform the same safety function within the original performance and equipment qualification parameters is commonly referred to as configuration control. Maintaining configuration control of a technologically current well documented item is easy. Unfortunately, this does not describe most safety related items requiring maintenance within the global nuclear industry. Items such as motors, transformers, metal clad switchgear (low and medium voltage circuit breakers), refrigeration compressors, and electronic components (i.e. circuit boards, power supplies, regulators, etc.) which routinely require repair have been in service for twenty plus years. As a result, finding replacement parts and or material to repair the items to the original condition is becoming more and more difficult. An added difficulty is the lack of original technical documentation available on the item which is being repaired. The lack of technical documentation makes it difficult to identify replacement material and parts when the original part or material is not available. The lack of documentation also makes it difficult to test the repaired item to make sure that the original configuration has been maintained after the repair. The presentation will discuss the details of repairing various items including motors, metal clad switchgear, refrigeration compressors and power supplies and the controls which are necessary to maintain the configuration of the original item. The discussion will include the Quality Assurance and engineering necessary to identify and evaluate replacement material and parts necessary to perform repairs on safety related equipment when the original material or part is not available. Examples of repairs which required different parts or materials than the original to be used in the repair will be

  11. Management of radiological related equipments. Creating the equipment management database and analysis of the repair and maintenance records

    International Nuclear Information System (INIS)

    In 1997, we established the committee of equipments maintenance and management in our department. We designed the database in order to classify and register all the radiological related equipments using Microsoft Access. The management of conditions and cost of each equipment has become easier, by keeping and recording the database in the equipments management ledger and by filing the history of repairs or maintenances occurred to modalities. We then accounted numbers, cost of repairs and downtimes from the data of the repair and maintenance records for four years, and we reexamined the causal analysis of failures and the contents of the regular maintenance for CT and MRI equipments that had shown the higher numbers of repairs. Consequently, we have found the improvement of registration method of the data and the more economical way to use of the cost of repair. (author)

  12. Modelling maintenance effects on manufacturing equipment performance: results from simulation analysis

    OpenAIRE

    Muchiri Nganga, Peter; Pintelon, Liliane; Martin, Harry; Chemweno, Peter Kipruto

    2013-01-01

    Equipment maintenance and system reliability are important factors affecting the organisation’s ability to provide quality and timely services to customer. While maintenance remains an important function to manufacturing, it is only recently that attempts have been made to quantify its impact on equipment performance. In this research, an approach of linking maintenance with equipment performance is developed using simulation modelling. The modelling approach involves defining probabilistic m...

  13. 飞机结构性腐蚀和维护%Aircraft Structure Corrosion and Maintenance

    Institute of Scientific and Technical Information of China (English)

    姜福成

    2016-01-01

    在飞机的日常检修和维护过程中,其飞机结构性的腐蚀所造成的问题困扰着日常的航空飞机检修工作。本文通过简述飞机所面对的结构腐蚀问题产生的原因和特点,指出其结构腐蚀对于飞机的发动机、性能等的伤害,并总结日常生活中对飞机结构腐蚀的维护和预防方法。通过探讨这些问题,希望能对航空的机务维修工作带来一些可操作性的建议。%In the daily maintenance and maintenance of the airplane in the process, because of the aircraft structural corrosion caused by problems with daily aviation aircraft maintenance work. Based on aircraft structure corrosion problems facing, through briefly describes the reasons and characteristics, and points out its structure corrosion for aircraft engine, performance such as damage, through these phenomena summarized in daily life for the maintenance of aircraft structure corrosion and prevention method, based on the discussion to these questions, hope to have the aviation maintenance repair work to bring some feasibility Suggestions.

  14. Effect of electromagnetic interference by neonatal transport equipment on aircraft operation.

    Science.gov (United States)

    Nish, W A; Walsh, W F; Land, P; Swedenburg, M

    1989-06-01

    The number of civilian air ambulance services operating in the United States has been steadily increasing. The quantity and sophistication of electronic equipment used during neonatal transport have also increased. All medical equipment generates some electromagnetic interference (EMI). Excessive EMI can interfere with any of an aircraft's electrical systems, including navigation and communications. The United States military has strict standards for maximum EMI in transport equipment. Over the past 15 years, approximately 70% of neonatal transport monitors, ventilators, and incubators have failed testing due to excessive EMI. As neonatal transport equipment becomes more sophisticated, EMI is increased, and there is greater potential for aircraft malfunction. The Federal Aviation Administration should develop civilian standards for acceptable EMI, civilian aircraft operators must be aware of the possible dangers of excessive EMI, and equipment which does not meet future FAA standards should not be purchased. PMID:2751593

  15. 44 CFR 208.24 - Purchase and maintenance of items not listed on Equipment Cache List.

    Science.gov (United States)

    2010-10-01

    ... items not listed on Equipment Cache List. 208.24 Section 208.24 Emergency Management and Assistance... of items not listed on Equipment Cache List. (a) Requests for purchase or maintenance of equipment and supplies not appearing on the Equipment Cache List, or that exceed the number specified in...

  16. 30 CFR 75.1725 - Machinery and equipment; operation and maintenance.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Machinery and equipment; operation and....1725 Machinery and equipment; operation and maintenance. (a) Mobile and stationary machinery and equipment shall be maintained in safe operating condition and machinery or equipment in unsafe...

  17. 30 CFR 77.404 - Machinery and equipment; operation and maintenance.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Machinery and equipment; operation and... OF UNDERGROUND COAL MINES Safeguards for Mechanical Equipment § 77.404 Machinery and equipment; operation and maintenance. (a) Mobile and stationary machinery and equipment shall be maintained in...

  18. Peripheral Neuropathy in Military Aircraft Maintenance Workers in Australia

    NARCIS (Netherlands)

    Guest, Maya; Attia, John R.; D'Este, Catherine A.; Boggess, May M.; Brown, Anthony M.; Gibson, Richard E.; Tavener, Meredith A.; Ross, James; Gardner, Ian; Harrex, Warren

    2011-01-01

    Objective: This study aimed to examine possible persisting peripheral neuropathy in a group who undertook fuel tank repairs on F-111 aircraft, relative to two contemporaneous comparison groups. Methods: Vibration perception threshold (VPT) was tested using biothesiometry in 614 exposed personnel, co

  19. THE OFFICIAL AUDIT: THE MAINTENANCE OF THE STRUCTURES AND EQUIPMENTS

    OpenAIRE

    Claudio Biglia

    2008-01-01

    The author distinguishes the ordinary maintenance in corrective, preventive and predictive maintenance and describes the importance of the verifications of the maintenance procedures of the structures and the equipmentes in the food industy. He individualizes criterions to follow for an aware detective check. This approach offers a greater guarantee of food security and a greater responsibility of OSA

  20. THE OFFICIAL AUDIT: THE MAINTENANCE OF THE STRUCTURES AND EQUIPMENTS

    Directory of Open Access Journals (Sweden)

    Claudio Biglia

    2008-12-01

    Full Text Available The author distinguishes the ordinary maintenance in corrective, preventive and predictive maintenance and describes the importance of the verifications of the maintenance procedures of the structures and the equipmentes in the food industy. He individualizes criterions to follow for an aware detective check. This approach offers a greater guarantee of food security and a greater responsibility of OSA

  1. Optimization of Equipment Maintenance Strategy Based on Availability

    Institute of Scientific and Technical Information of China (English)

    张友诚

    2001-01-01

    It is very important to optimize maintenance strategy in maintenance plan. Proper parameters play a decisive role for the optimization. In the opinion of writer, availability is a basic parameter, failure consequence cost and failure characteristic are also important parameters. Maintenance strategy can be optimized on the base by means of quantitative analysis and diagram.

  2. 47 CFR 87.75 - Maintenance of antenna structure marking and control equipment.

    Science.gov (United States)

    2010-10-01

    ... Requirements § 87.75 Maintenance of antenna structure marking and control equipment. The owner of each antenna... 47 Telecommunication 5 2010-10-01 2010-10-01 false Maintenance of antenna structure marking and control equipment. 87.75 Section 87.75 Telecommunication FEDERAL COMMUNICATIONS COMMISSION...

  3. 47 CFR 90.441 - Inspection and maintenance of antenna structure marking and associated control equipment.

    Science.gov (United States)

    2010-10-01

    ... Requirements § 90.441 Inspection and maintenance of antenna structure marking and associated control equipment... 47 Telecommunication 5 2010-10-01 2010-10-01 false Inspection and maintenance of antenna structure marking and associated control equipment. 90.441 Section 90.441 Telecommunication FEDERAL...

  4. Electrochemical Machining – Special Equipment and Applications in Aircraft Industry

    Directory of Open Access Journals (Sweden)

    Ruszaj Adam

    2016-06-01

    Full Text Available Electrochemical machining is an unique method of shaping in which, for optimal parameters tool has no wear, surface layer properties after machining are similar to the core material and surface quality and accuracy increase together with material removal rate increase. Such advantages of electrochemical machining, besides of some ecological problems, create industry interest in the range of manufacturing elements made of materials with special properties (i.e. turbine blades of flow aircrafts engines. In the paper the nowadays possibilities and recent practical application of electrochemical machining in aircraft have been presented.

  5. Forecasting Electrical Energy Consumption of Equipment Maintenance Using Neural Network and Particle Swarm Optimization

    OpenAIRE

    Xunlin Jiang; Haifeng Ling; Jun Yan; Bo Li; Zhao Li

    2013-01-01

    Accurate forecasting of electrical energy consumption of equipment maintenance plays an important role in maintenance decision making and helps greatly in sustainable energy use. The paper presents an approach for forecasting electrical energy consumption of equipment maintenance based on artificial neural network (ANN) and particle swarm optimization (PSO). A multilayer forward ANN is used for modeling relationships between the input variables and the expected electrical energy consumption, ...

  6. Preventive maintenance prioritization index of medical equipment using quality function deployment.

    Science.gov (United States)

    Saleh, Neven; Sharawi, Amr A; Elwahed, Manal Abd; Petti, Alberto; Puppato, Daniele; Balestra, Gabriella

    2015-05-01

    Preventive maintenance is a core function of clinical engineering, and it is essential to guarantee the correct functioning of the equipment. The management and control of maintenance activities are equally important to perform maintenance. As the variety of medical equipment increases, accordingly the size of maintenance activities increases, the need for better management and control become essential. This paper aims to develop a new model for preventive maintenance priority of medical equipment using quality function deployment as a new concept in maintenance of medical equipment. We developed a three-domain framework model consisting of requirement, function, and concept. The requirement domain is the house of quality matrix. The second domain is the design matrix. Finally, the concept domain generates a prioritization index for preventive maintenance considering the weights of critical criteria. According to the final scores of those criteria, the prioritization action of medical equipment is carried out. Our model proposes five levels of priority for preventive maintenance. The model was tested on 200 pieces of medical equipment belonging to 17 different departments of two hospitals in Piedmont province, Italy. The dataset includes 70 different types of equipment. The results show a high correlation between risk-based criteria and the prioritization list.

  7. The Development and Application of a Value-Driven Aircraft Maintenance Operations Performance Assessment Model combined with Real Options Analysis

    NARCIS (Netherlands)

    Goossens, H.G.; Beelaerts van Blokland, W.W.A.; Curran, R.

    2011-01-01

    This research paper presents the results from the development of an Aircraft Maintenance Operations Performance Assessment Model (AMOPAM). The AMOPAM is able to assess the differences in performance in between two different states or scenarios of aircraft maintenance operations and is able to captur

  8. Study on the Management for the Nuclear Power Plant Maintenance and Equipment Reliability

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, Kyeongseop; Lee, Sangheon; Kim, Myungjin; Lee, Unjang [ORIONENC Co., Seoul (Korea, Republic of)

    2015-05-15

    In our country, many studies on the regulatory policy of the plant maintenance have ever been performed since 1998, but the relevant regulatory requirements were not established yet. These background mentioned above request us to study on the regulation policy and maintenance plan to improve the safety, reliability and efficiency of NPP. To solve these problems, in this study, we deduct the management methodology for the improvement of NPP maintenance and equipment reliability that is essential to secure the safety and efficiency of the commercial NPP. For analysis the maintenance and equipment reliability management methodology in overseas NPP. We studied maintenance and equipment reliability of USA, Canada and Europe(France, England, German). We also studied status and application condition of Korean NPP maintenance management technical development. We deducted an effective maintenance methodology that is needed to Korean NPP, as a result of comparison on the technical trend of the maintenance management between overseas and Korean, such like following. - Regulation form ·Specific provision of regulation requirement and application of form that is clarifying application standard - Maintenance management methodology, Maintenance management program. This results of study could be applied for regulation policy, law and guideline establishment of NPP maintenance, operation, supervision and a system establishment for maintenance management, education data about maintenance for NPP employees.

  9. Study on the Management for the Nuclear Power Plant Maintenance and Equipment Reliability

    International Nuclear Information System (INIS)

    In our country, many studies on the regulatory policy of the plant maintenance have ever been performed since 1998, but the relevant regulatory requirements were not established yet. These background mentioned above request us to study on the regulation policy and maintenance plan to improve the safety, reliability and efficiency of NPP. To solve these problems, in this study, we deduct the management methodology for the improvement of NPP maintenance and equipment reliability that is essential to secure the safety and efficiency of the commercial NPP. For analysis the maintenance and equipment reliability management methodology in overseas NPP. We studied maintenance and equipment reliability of USA, Canada and Europe(France, England, German). We also studied status and application condition of Korean NPP maintenance management technical development. We deducted an effective maintenance methodology that is needed to Korean NPP, as a result of comparison on the technical trend of the maintenance management between overseas and Korean, such like following. - Regulation form ·Specific provision of regulation requirement and application of form that is clarifying application standard - Maintenance management methodology, Maintenance management program. This results of study could be applied for regulation policy, law and guideline establishment of NPP maintenance, operation, supervision and a system establishment for maintenance management, education data about maintenance for NPP employees

  10. Impairment of color vision in aircraft maintenance workers

    NARCIS (Netherlands)

    Guest, Maya; D'Este, Catherine; Attia, John; Boggess, May; Brown, Anthony; Tavener, Meredith; Gibson, Richard; Gardner, Ian; Harrex, Warren; Ross, James

    2011-01-01

    Purpose The purpose of the study was to examine possible persisting effects to color vision in a group from the Royal Australian Air Force who had exposure to formulations containing neurotoxins during F-111 fuel tank maintenance, relative to two contemporaneous comparison groups. Methods Color visi

  11. Hearing status among aircraft maintenance personnel in a commercial airline company.

    Science.gov (United States)

    Smedje, Greta; Lunden, Maria; Gärtner, Lotta; Lundgren, Håkan; Lindgren, Torsten

    2011-01-01

    The aim was to study subjective and objective hearing loss in a population of aircraft maintenance workers and identify predictors. A total of 327 aircraft maintenance personnel answered a self-administered work environment questionnaire (response rate 76%) and underwent audiometric test. The mean values for the hearing threshold at 3, 4, and 6 kHz for the ear with the most hearing loss were compared with a Swedish population database of persons not occupationally exposed to noise. Equivalent noise exposure during a working day was measured. Relationships between subjective and objective hearing loss and possible predictors (age, years of employment, self-reported exposure to solvents, blood pressure, and psycho-social factors) were analyzed by multiple logistic regression. At younger ages (<40 years), aircraft maintenance workers had higher hearing thresholds (1-3 dB) compared to the reference group, but such a difference was not found in older employees. Relationships were found between age and objective hearing loss, and between exposure to solvents and reported subjective hearing loss. Equivalent noise exposure during working days were 70-91 dB(A) with a maximal noise level of 119 dB(A). Aircraft maintenance workers are exposed to equivalent noise levels above the Swedish occupational standard, including some very high peak exposures. Younger employees have a higher age-matched hearing threshold level compared with a reference group. Thus, there is a need for further preventive measures.

  12. Vocational Training and European Standardisation of Qualifications: The Case of Aircraft Maintenance

    Science.gov (United States)

    Haas, Joachim; Ourtau, Maurice

    2009-01-01

    Initiatives to standardise the conditions for practising certain regulated activities are being taken at European level, particularly in light of the free movement of people and the recognition of qualifications in Member states. This paper looks at the introduction of european licences for aircraft maintenance engineers. It follows an in-depth…

  13. A Study of Aviation Weapon Equipment Maintenance Based on the Semi-Markov Model

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Based on the Semi-Markov mathematical description, the multiple states of maintenance processes for aviation weapon equipment are studied. Six kinds of maintenance states are determined and the Semi-Markov model of the maintenance process is given. According to maintenance characteristic, the multiple states maintenance processes are divided into the wait, use and alternate stages.Through using the mathematical model for the different stages, the probability in different states and effective index on different stages are obtained. These results are available to the maintenance practice.

  14. Use of augmented reality in aircraft maintenance operations

    Science.gov (United States)

    De Marchi, L.; Ceruti, A.; Testoni, N.; Marzani, A.; Liverani, A.

    2014-03-01

    This paper illustrates a Human-Machine Interface based on Augmented Reality (AR) conceived to provide to maintenance operators the results of an impact detection methodology. In particular, the implemented tool dynamically interacts with a head portable visualization device allowing the inspector to see the estimated impact position on the structure. The impact detection methodology combines the signals collected by a network of piezosensors bonded on the structure to be monitored. Then a signal processing algorithm is applied to compensate for dispersion the acquired guided waves. The compensated waveforms yield to a robust estimation of guided waves difference in distance of propagation (DDOP), used to feed hyperbolic algorithms for impact location determination. The output of the impact methodology is passed to an AR visualization technology that is meant to support the inspector during the on-field inspection/diagnosis as well as the maintenance operations. The inspector, in fact, can see interactively in real time the impact data directly on the surface of the structure. Here the proposed approach is tested on the engine cowling of a Cessna 150 general aviation airplane. Preliminary results confirm the feasibility of the method and its exploitability in maintenance practice.

  15. Medical Equipment Maintenance Programme Overview WHO Medical device technical series

    CERN Document Server

    Organization, World Health

    2011-01-01

    WHO and partners have been working towards devising an agenda an action plan tools and guidelines to increase access to appropriate medical devices. This document is part of a series of reference documents being developed for use at the country level. The series will include the following subject areas: . policy framework for health technology . medical device regulations . health technology assessment . health technology management . needs assessment of medical devices . medical device procurement . medical equipment donations . medical equipment inventory management . medical equipment maint

  16. Maintenance problems in nuclear power plants mechanical equipment

    International Nuclear Information System (INIS)

    The maintenance problems faced in the areas of pneumatic systems, ventilation systems, moderator system valves, adjuster rods, and moderator pumps of the Madras Atomic Power Station are highlighted. Suggestions are provided to reduce downtime. (M.K.V.)

  17. Study and organization of the maintenance of electronic equipment

    International Nuclear Information System (INIS)

    This work has consisted in the observation of maintenance actions analysing not only the times but also the cost to repair. The good use of multidimensionnal analysis brought a photograph of the maintenance section of the Nuclear Instrumentation Department of Saclay's Research center. This image resulted in different parameters all external (cost, number of repair,...) leading to the efficiency of the action, to the technological complexity of the item, or the ability to find faults, Beyond these verifications one can dispose of means to evaluate maintenance. In order to group, to sort or to sample data it was necessary to dispose of the computer support necessary for calculations and handling the maintenance data. This tool and the necessary sofware were developped on this occasion. The APL sofware rest on a common structure basis conceived for simplicity and the ease of the user

  18. Planning Maintenance of Medical Equipment Through the Workforce Adjustment

    Directory of Open Access Journals (Sweden)

    Michael Herrera Galán

    2015-12-01

    Full Text Available The health institutions have gained experience in managing their processes. For many the key to success lies in human resource management. Companies require personnel, and while more appropriate is the staff, its effi ciency will be greater. With the present article, we intend to provide a proceeding that supports the functions of the maintenance department at a hospital, under the criterion of determine the necessary staff, to carry out the maintenance tasks. Several factors are combined, highlighting, workload derived from the annual maintenance plan and the time available for department employees. The results obtained, permitted the identifi cation of the necessary staff to carry out the planned preventive maintenance actions at the at Children's Hospital Juan Manuel Marquez.

  19. Equipment Categorization as a Basis to Improve the Organization of Maintenance

    Science.gov (United States)

    Drahňovský, Juraj

    2012-12-01

    Each enterprise must worry about its technical equipment. There are many concepts and strategies to improve the management of the maintenance, e. g. TPM, RBI, LCC, CBM, RCM etc. However, the basis for each one of these systems should be the equipment categorization. The purpose of categorization is to classify equipments according to the type of risk associated with their main function. This allows to focus attention on the parameters and the criteria used to assign the degree of risk when the equipment fails and to determine the proper method of maintenance.

  20. 14 CFR 135.177 - Emergency equipment requirements for aircraft having a passenger seating configuration of more...

    Science.gov (United States)

    2010-01-01

    ... aircraft having a passenger seating configuration of more than 19 passengers. 135.177 Section 135.177... § 135.177 Emergency equipment requirements for aircraft having a passenger seating configuration of more than 19 passengers. (a) No person may operate an aircraft having a passenger seating...

  1. On reliability and maintenance modelling of ageing equipment in electric power systems

    International Nuclear Information System (INIS)

    Maintenance optimisation is essential to achieve cost-efficiency, availability and reliability of supply in electric power systems. The process of maintenance optimisation requires information about the costs of preventive and corrective maintenance, as well as the costs of failures borne by both electricity suppliers and customers. To calculate expected costs, information is needed about equipment reliability characteristics and the way in which maintenance affects equipment reliability. The aim of this Ph.D. work has been to develop equipment reliability models taking the effect of maintenance into account. The research has focussed on the interrelated areas of condition estimation, reliability modelling and maintenance modelling, which have been investigated in a number of case studies. In the area of condition estimation two methods to quantitatively estimate the condition of disconnector contacts have been developed, which utilise results from infrared thermography inspections and contact resistance measurements. The accuracy of these methods were investigated in two case studies. Reliability models have been developed and implemented for SF6 circuit-breakers, disconnector contacts and XLPE cables in three separate case studies. These models were formulated using both empirical and physical modelling approaches. To improve confidence in such models a Bayesian statistical method incorporating information from the equipment design process was also developed. This method was illustrated in a case study of SF6 circuit-breaker operating rods. Methods for quantifying the effect of maintenance on equipment condition and reliability have been investigated in case studies on disconnector contacts and SF6 circuit-breakers. The input required by these methods are condition measurements and historical failure and maintenance data, respectively. This research has demonstrated that the effect of maintenance on power system equipment may be quantified using available data

  2. Application and preventive maintenance of neurology medical equipment in Isfahan alzahra hospital

    Directory of Open Access Journals (Sweden)

    Parivash Alikhani

    2013-01-01

    Conclusions: Survey of application and preventive maintenance of neurology medical equipment in Isfahan Alzahra hospital show there is no P.M system. Implementing a complete P.M system for this medical center is crucial to preventing cause problems for these medical equipment and decreasing maintenance costs and gaining uptime. Researchers of this article have tried to provide PM, use of texts, web and experts.

  3. 14 CFR 147.37 - Maintenance of facilities, equipment, and material.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Maintenance of facilities, equipment, and material. 147.37 Section 147.37 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) SCHOOLS AND OTHER CERTIFICATED AGENCIES AVIATION MAINTENANCE TECHNICIAN...

  4. 50 CFR 35.5 - Commercial enterprises, roads, motor vehicles, motorized equipment, motorboats, aircraft...

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 6 2010-10-01 2010-10-01 false Commercial enterprises, roads, motor... Rules § 35.5 Commercial enterprises, roads, motor vehicles, motorized equipment, motorboats, aircraft... private rights, there shall be no commercial enterprise and no permanent road within a wilderness...

  5. COSWIN Logiciel de Maintenance des Equipements de Levage

    CERN Document Server

    Langer, B

    1999-01-01

    La section 'Maintenance d'équipements de levage' assure l'entretien préventif et correctif d'un parc de 2800 appareils de levage et de manutention. Cette tâche est effectuée en collaboration avec une entreprise, spécialisée dans la maintenance industrielle. Pour faciliter la gestion des interventions, la section ST-HM-PR dispose depuis 1985 d'un système de gestion de maintenance assistée par ordinateur (GMAO). En 1996, cet ancien système a été remplacé par le logiciel 'COSWIN'. Celui-ci correspond aux besoins de la maintenance des appareils de levage. Sa disponibilité sous la plate-forme 'WINDOWS' rend l'utilisation de la GMAO facile et conviviale. 'COSWIN' travaillant en réseau, la base de données est commune pour tous les utilisateurs et mise à jour en temps réel. Depuis leurs locaux, situés au Technoparc de St. Genis, les opérateurs de l'entreprise contractante ont accès au logiciel par une ligne téléphonique. Le contrôle et le suivi des performances de l'entreprise se fait par l'ana...

  6. Maintenance-free lead acid battery for inertial navigation systems aircraft

    Science.gov (United States)

    Johnson, William R.; Vutetakis, David G.

    1995-05-01

    Historically, Aircraft Inertial Navigation System (INS) Batteries have utilized vented nickel-cadmium batteries for emergency DC power. The United States Navy and Air Force developed separate systems during their respective INS developments. The Navy contracted with Litton Industries to produce the LTN-72 and Air Force contracted with Delco to produce the Carousel IV INS for the large cargo and specialty aircraft applications. Over the years, a total of eight different battery national stock numbers (NSNs) have entered the stock system along with 75 battery spare part NSNs. The Standard Hardware Acquisition and Reliability Program is working with the Aircraft Battery Group at Naval Surface Warfare Center Crane Division, Naval Air Systems Command (AIR 536), Wright Laboratory, Battelle Memorial Institute, and Concorde Battery Corporation to produce a standard INS battery. This paper discusses the approach taken to determine whether the battery should be replaced and to select the replacement chemistry. The paper also discusses the battery requirements, aircraft that the battery is compatible with, and status of Navy flight evaluation. Projected savings in avoided maintenance in Navy and Air Force INS Systems is projected to be $14.7 million per year with a manpower reduction of 153 maintenance personnel. The new INS battery is compatible with commercially sold INS systems which represents 66 percent of the systems sold.

  7. A Survey of the Aircraft Maintenance Industry to Solicit Perceptions Regarding the Effectiveness of Recent Graduates of F.A.A. Approved Maintenance Schools.

    Science.gov (United States)

    O'Brian, Benjamin H.

    A study examined the perceptions of employers in the aircraft maintenance industry regarding the effectiveness of recent graduates of Federal Aeronautics Administration (FAA)-approved maintenance schools. Of the 100 employers who were contacted, 68 returned usable surveys. Based on responses, it was concluded that the views of employers in the…

  8. Optimization of maintenance for power system equipment using a predictive health model

    NARCIS (Netherlands)

    Bajracharya, G.; Koltunowicz, T.; Negenborn, R.R.; Papp, Z.; Djairam, D.; Schutter, B.D. de; Smit, J.J.

    2009-01-01

    In this paper, a model-predictive control based framework is proposed for modeling and optimization of the health state of power system equipment. In the framework, a predictive health model is proposed that predicts the health state of the equipment based on its usage and maintenance actions. Based

  9. 47 CFR 80.110 - Inspection and maintenance of antenna structure markings and associated control equipment.

    Science.gov (United States)

    2010-10-01

    ... structure markings and associated control equipment. The owner of each antenna structure required to be... 47 Telecommunication 5 2010-10-01 2010-10-01 false Inspection and maintenance of antenna structure markings and associated control equipment. 80.110 Section 80.110 Telecommunication FEDERAL...

  10. Forecasting Electrical Energy Consumption of Equipment Maintenance Using Neural Network and Particle Swarm Optimization

    Directory of Open Access Journals (Sweden)

    Xunlin Jiang

    2013-01-01

    Full Text Available Accurate forecasting of electrical energy consumption of equipment maintenance plays an important role in maintenance decision making and helps greatly in sustainable energy use. The paper presents an approach for forecasting electrical energy consumption of equipment maintenance based on artificial neural network (ANN and particle swarm optimization (PSO. A multilayer forward ANN is used for modeling relationships between the input variables and the expected electrical energy consumption, and a new adaptive PSO algorithm is proposed for optimizing the parameters of the ANN. Experimental results demonstrate that our approach provides much better accuracies than some other competitive methods on the test data.

  11. Object and operation supported maintenance for mining equipment

    Directory of Open Access Journals (Sweden)

    Walter Bartelmus

    2014-09-01

    Full Text Available The paper aroused in answer to discussion in Mining Magazine (MM September 2011 and July/August 2013. The paper shows that discussion given in the MM issue July/August 2013 does not fulfill expectations expressed in MM issue 2011. The presented paper is the review on maintenance that is based on condition monitoring as tool for detection of faults and failure prevention. Fault and failure are regarded as inevitable during the machine operation as the process of wear and the process of degradation. The question is, if one can influence the wear and degradation process, using condition monitoring. The paper will present technology (in reference to cited papers which demonstrates that the use of the proper method can influence the wear and machine degradation process, using proper condition monitoring techniques and knowing scenarios of wear and degradation process, the maintenance can be rationalized. The presented paper shows possible improvements which are needed to fulfill expectations expressed in MM September 2011 and they are not taken into consideration in MM July/August 3013. These improvements can be fulfilling on the bases of object and operation supported maintenance.

  12. Choice and maintenance of equipment for electron crystallography.

    Science.gov (United States)

    Mills, Deryck J; Vonck, Janet

    2013-01-01

    The choice of equipment for an electron crystallography laboratory will ultimately be determined by the available budget; nevertheless, the ideal lab will have two electron microscopes: a dedicated 300 kV cryo-EM with a field emission gun and a smaller LaB(6) machine for screening. The high-end machine should be equipped with photographic film or a very large CCD or CMOS camera for 2D crystal data collection; the screening microscope needs a mid-size CCD for rapid evaluation of crystal samples. The microscope room installations should provide adequate space and a special environment that puts no restrictions on the collection of high-resolution data. Equipment for specimen preparation includes a carbon coater, glow discharge unit, light microscope, plunge freezer, and liquid nitrogen containers and storage dewars. When photographic film is to be used, additional requirements are a film desiccator, dark room, optical diffractometer, and a film scanner. Having the electron microscopes and ancillary equipment well maintained and always in optimum condition facilitates the production of high-quality data.

  13. THE IMPACTS OF WINTER MAINTENANCE EQUIPMENT ON VEHICLE DELAY ON INTERSTATES

    Directory of Open Access Journals (Sweden)

    William A. Holik

    2015-09-01

    Full Text Available This paper evaluates the impacts of specialty winter maintenance equipment on vehicle delay by fusing Bluetooth speed, weather, and winter maintenance treatment data. A specialty plow capable of plowing two lanes in one pass is compared to a standard winter maintenance truck that plows and treats one lane per pass. Each type of equipment is analyzed on the same two-lane interstate highway, with the two trucks maintaining different sections to avoid cross contamination. The researchers deployed multiple Bluetooth nodes along the roadway to capture vehicle speeds during maintenance activities. The cumulative delay per mile is compared for the two trucks during light and heavy snowfall. The times when delay occurs are grouped into five-minute intervals for two scenarios including when the winter maintenance equipment has just passed through a Bluetooth node segment and for all recently-treated segments after the equipment has exited the highway. The results indicated the specialty plow creates a larger delay than the standard truck when plowing two lanes and a similar delay when plowing one lane and the shoulder. However, when looking solely at heavy snowfall, the delay is similar for each type of equipment, indicating the specialty plow is more effective during heavy snowfall.

  14. Performance of mechanical equipment and maintenance problems in the Rajasthan Atomic Power Station [Paper No.: II-7

    International Nuclear Information System (INIS)

    Performance of and maintenance problems faced with mechanical equipment of the Rajasthan Atomic Power Station (RAPS) are discussed. The equipment discussed include: turbines, boiler feed pumps, reheater drain pumps, primary heat transport pumps and motors, pressurizing pumps, valves and ventilation equipment. Preventive maintenance programme is briefly described. (M.G.B.)

  15. Multi-equipment condition based maintenance optimization by multi- objective genetic algorithm

    Directory of Open Access Journals (Sweden)

    Š. Valčuha

    2011-04-01

    Full Text Available Purpose: This paper deals with the optimization of the condition based maintenance (CBM applied on manufacturing multi-equipment system under cost and benefit criteria.Design/methodology/approach: The system is modeled using Discrete Event Simulation (DES and optimized by means of the application of a Multi-Objective Evolutionary Algorithm (MOEA.Findings: Solution for the joint optimization of the condition based maintenance model applied on several equipment has been obtained.Research limitations/implications: The developed approach has been successfully applied to the optimization of condition based maintenance activities of a hubcap production system composed by three plastic injection machines and a painting station, for management decision support.Originality/value: This paper provides a solution for the joint optimization of CBM strategies applied on several equipments

  16. A Maintenance Model Based on Phase Type Distribution for Equipment under Two Types of Failures

    Institute of Scientific and Technical Information of China (English)

    YIN Xiao-hu; WEN Xi-sen; YANG Yong-min; QIAN Yan-ling

    2007-01-01

    A maintenance model is put forward for equipment, which is subjected to internal and external failures. In the model, two maintenance policies-perfect minimal repair and replacement are considered. The operational time has a phase type distribution (PH distribution). Failures' arrival follows a Markovian Arrival Process (MAP). Some failures require the replacement of the system, and others minimal repairs. The performance measures-the mean number of minimal repairs and replacements are analyzed and calculated.

  17. Optimal Combination of Aircraft Maintenance Tasks by a Novel Simplex Optimization Method

    Directory of Open Access Journals (Sweden)

    Huaiyuan Li

    2015-01-01

    Full Text Available Combining maintenance tasks into work packages is not only necessary for arranging maintenance activities, but also critical for the reduction of maintenance cost. In order to optimize the combination of maintenance tasks by fuzzy C-means clustering algorithm, an improved fuzzy C-means clustering model is introduced in this paper. In order to reduce the dimension, variables representing clustering centers are eliminated in the improved cluster model. So the improved clustering model can be directly solved by the optimization method. To optimize the clustering model, a novel nonlinear simplex optimization method is also proposed in this paper. The novel method searches along all rays emitting from the center to each vertex, and those search directions are rightly n+1 positive basis. The algorithm has both theoretical convergence and good experimental effect. Taking the optimal combination of some maintenance tasks of a certain aircraft as an instance, the novel simplex optimization method and the clustering model both exhibit excellent performance.

  18. 49 CFR 214.521 - Flagging equipment for on-track roadway maintenance machines and hi-rail vehicles.

    Science.gov (United States)

    2010-10-01

    ... maintenance machines and hi-rail vehicles. 214.521 Section 214.521 Transportation Other Regulations Relating... WORKPLACE SAFETY On-Track Roadway Maintenance Machines and Hi-Rail Vehicles § 214.521 Flagging equipment for on-track roadway maintenance machines and hi-rail vehicles. Each on-track roadway maintenance...

  19. METHODOLOGY OF DETERMINATION OF QUALITY INDEX OF MAINTENANCE SERVICE SYSTEM OF POWER EQUIPMENT OF TRACTION SUBSTATIONS

    Directory of Open Access Journals (Sweden)

    O.O. Matusevych

    2016-03-01

    Full Text Available Purpose. The purpose of this paper is development of methodology for definition of a quality system of maintenance and repair (M and P power equipment of traction substations (TS of electrified railways operating under conditions of uncertainty based on expert information. Methodology. The basic tenets of the theory of fuzzy sets and marks, linguistic and interval estimates of experts were applied to solve this problem. Results. Analysis of the existing diversity of approaches to development of modern methods of improvement of M and P allows us to conclude that the improvement in the quality of the system is achieved by solving individual problems increase the operational reliability of power equipment of traction substations in the following main interrelated areas. There are technical, economic and organizational. The basis of the quality evaluation system is initial data and expertise developed version of the document formalized quality evaluation of electrical equipment of traction substations by experts. The choice of determining the level of Quality service system based on the marks, linguistic and interval estimates of experts, which are reflected in quantitative and / or qualitative form was done. The possible options for expert data presentation and their corresponding quantitative methods of calculating the integral index of quality improvement system maintenance and P of traction substations were described. The methodology and the method of assessing the quality of system maintenance and P of TS allows quickly respond to changing operating conditions of power equipment of traction substations, and to determine the most effective strategies for maintenance of electrical and P TS under conditions of uncertainty functioning distance electricity. Originality. The method of a systematic approach to improve the quality of the system maintenance and P of power equipment of traction substation under conditions of uncertainty based on expert

  20. A MAINTENANCE STRATEGY MODEL FOR STATIC EQUIPMENT USING INSPECTION METHODOLOGIES AND RISK MANAGEMENT

    Directory of Open Access Journals (Sweden)

    J.K. Visser

    2012-01-01

    Full Text Available

    ENGLISH ABSTRACT: Mechanical equipment used on process plants can be categorised into two main types, namely static and rotating equipment. A brief survey at a number of chemical process plants indicated that a number of maintenance strategies exist and are used for rotating equipment. However, some of these strategies are not directly applicable to static equipment, although the risk-based inspection (RBI methodology has been developed for pressure vessels. A generalised risk-based maintenance strategy for all types of static equipment does not currently exist. This paper describes the development of an optimised model of inspection methodologies, maintenance strategies, and risk management principles that are generically applicable for static equipment. It enables maintenance managers and engineers to select an applicable maintenance strategy and inspection methodology, based on the operational and business risks posed by the individual pieces of equipment.

    AFRIKAANSE OPSOMMING: Meganiese toerusting wat op prosesaanlegte gebruik word kan in twee kategorieë verdeel word, naamlik statiese en roterende toerusting. 'n Bondige ondersoek by 'n aantal chemiese prosesaanlegte het aangedui dat 'n aantal strategieë vir instandhouding van roterende toerusting gebruik word, terwyl die risikogebaseerde inspeksiemetodologie wel vir drukvate gebruik word. 'n Algemene risikogebaseerde instandhoudingstrategie vir alle tipes statiese toerusting is egter nie tans beskikbaar nie. Hierdie artikel beskryf die ontwikkeling van 'n geoptimeerde model van inspeksiemetodologieë, instandhoudingstrategieë, en risikobestuursbeginsels wat algemeen gebruik kan word vir statiese toerusting. Dit stel die instandhouding-bestuurders en -ingenieurs in staat om 'n instandhoudingstrategie en inspeksie-metodologie te kies, gebaseer op die operasionele en besigheidsrisiko's van die individuele toerusting.

  1. Machine and lubricant condition monitoring for extended equipment lifetimes and predictive maintenance

    Energy Technology Data Exchange (ETDEWEB)

    Lukas, M.; Anderson, D.P. [Spectro Incorporated, Littleton, Massachusetts (United States)

    1997-12-31

    Predictive maintenance has gained wide acceptance as a cost cutting strategy in modern industry. Condition monitoring by lubricant analysis is one of the basic tools of a predictive maintenance program along with vibration monitoring, performance monitoring and thermography. In today`s modern power generation, manufacturing, refinery, transportation, mining, and military operations, the cost of equipment maintenance, service, and lubricants are ever increasing. Parts, labor, equipment downtime and lubricant prices and disposal costs are a primary concern in a well run maintenance management program. Machine condition monitoring based on oil analysis has become a prerequisite in most maintenance programs. Few operations can afford not to implement a program if they wish to remain competitive, and in some cases, profitable. This presentation describes a comprehensive Machine Condition Monitoring Program based on oil analysis. Actual operational condition monitoring programs will be used to review basic components and analytical requirements. Case histories will be cited as examples of cost savings, reduced equipment downtime and increased efficiencies of maintenance programs through a well managed oil analysis program. (orig.)

  2. Remote maintenance lessons learned'' on prototypical reprocessing equipment

    Energy Technology Data Exchange (ETDEWEB)

    Kring, C.T.; Schrock, S.L.

    1990-01-01

    Hardware representative of essentially every major equipment item necessary for reprocessing breeder reactor nuclear fuel has been installed and tested for remote maintainability. This testing took place in a cold mock-up of a remotely maintained hot cell operated by the Consolidated Fuel Reprocessing Program (CFRP) within the Fuel Recycle Division at Oak Ridge National Laboratory (ORNL). The reprocessing equipment tested included a Disassembly System, a Shear System, a Dissolver System, an Automated Sampler System, removable Equipment Racks on which various chemical process equipment items were mounted, and an advanced servomanipulator (ASM). These equipment items were disassembled and reassembled remotely by using the remote handling systems that are available within the cold mock-up area. This paper summarizes the lessons learned'' as a result of the numerous maintenance activities associated with each of these equipment items. 4 refs., 3 figs., 1 tab.

  3. Modeling of Task Establishment and Allocation for Collaborative Virtual Maintenance Training of Complex Equipment

    Directory of Open Access Journals (Sweden)

    Xiangyang Li

    2012-09-01

    Full Text Available In this study, we propose the maintenance task establishment method based on fault simulation models. Maintenance task allocation model based on Multi-Agent System and High Level Architecture is presented to manage and coordinate the dynamic task allocating process of multi operators and it can make the intelligent decision for their collaborative maintenance operation at each step. Object information template is designed with the Extensible Markup Language to perform interactive communication of the heterogeneous data and information in the different models of collaborative virtual maintenance training system, which ensures the efficient share of the data resource for the collaborative maintenance operations. Finally, the simulation research on a mechanical-electronic-hydraulic integrated subsystem in complex equipment is done and the simulation execution and results show the effectiveness of the proposed methods.

  4. Optimal Medical Equipment Maintenance Service Proposal Decision Support System combining Activity Based Costing (ABC) and the Analytic Hierarchy Process (AHP).

    Science.gov (United States)

    da Rocha, Leticia; Sloane, Elliot; M Bassani, Jose

    2005-01-01

    This study describes a framework to support the choice of the maintenance service (in-house or third party contract) for each category of medical equipment based on: a) the real medical equipment maintenance management system currently used by the biomedical engineering group of the public health system of the Universidade Estadual de Campinas located in Brazil to control the medical equipment maintenance service, b) the Activity Based Costing (ABC) method, and c) the Analytic Hierarchy Process (AHP) method. Results show the cost and performance related to each type of maintenance service. Decision-makers can use these results to evaluate possible strategies for the categories of equipment. PMID:17281912

  5. Optimal Medical Equipment Maintenance Service Proposal Decision Support System combining Activity Based Costing (ABC) and the Analytic Hierarchy Process (AHP).

    Science.gov (United States)

    da Rocha, Leticia; Sloane, Elliot; M Bassani, Jose

    2005-01-01

    This study describes a framework to support the choice of the maintenance service (in-house or third party contract) for each category of medical equipment based on: a) the real medical equipment maintenance management system currently used by the biomedical engineering group of the public health system of the Universidade Estadual de Campinas located in Brazil to control the medical equipment maintenance service, b) the Activity Based Costing (ABC) method, and c) the Analytic Hierarchy Process (AHP) method. Results show the cost and performance related to each type of maintenance service. Decision-makers can use these results to evaluate possible strategies for the categories of equipment.

  6. Preventive maintenance: statistical method for the prediction of petrochemical equipments lifetime

    Energy Technology Data Exchange (ETDEWEB)

    Taibi, M. [Institut National des Hydrocarbures et de la Chimie, Boumerdes (Algeria)

    1995-12-31

    The reliable prediction of the mean time of before failure (MTBF) of any industrial equipment for the exploitation in the future is proposed by the statistical method using the conversion of real values of the (TBF) by means of geometrical mean value approach as well as the adequacy test. The calculus of the confidence interval of the MTF of the reliability of functioning for the equipment for the calculated period of the MTBF. The proceeding of the method is shown with an example of calculus of a centrifugal compressor in function. The method can be used to improve the organisation of the preventive maintenance of the industrial equipment.

  7. Study Peningkatan Overall Equipment Effectiveness Melalui Penerapan Total Productive Maintenance Di PTPN IV PKS Pasir Mandoge

    OpenAIRE

    Yanti Suriati S

    2011-01-01

    Overall Equipment Effectiveness (OEE) adalah metode pengukuran efektivitas penggunaan suatu peralatan. OEE dikenal sebagai salah satu aplikasi Program Total Productive Maintenance (TPM), Kemampuan mengidentifikasikan secara jelas akar permasalahan dan faktor penyebabnya sehingga membuat usaha perbaikan menjadi terfokus. Mesin screw press merupakan mesin yang menjadi objek peneliti, mesin screw press merupakan mesin critical unit. Mesin screw press sering mengalami perbaikan karena kerusakan m...

  8. Industrial Equipment Maintenance. Vocational Education Curriculum Guide. Industrial and Technical Education.

    Science.gov (United States)

    West Virginia State Vocational Curriculum Lab., Cedar Lakes.

    This curriculum guide contains 10 units that provide the basic curriculum components required to develop lesson plans for the industrial equipment maintenance curriculum. The guide is not intended to be a complete, self-contained curriculum, but instead provides the teacher with a number of informational items related to the learning outcomes and…

  9. On Syllabus Design for the Specialty of Electromechanical Equipment Maintenance and Management in Vocational College

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    We carried out researches on the syllabus design for the specialty of electromechanical equipment maintenance & management in vocational college. Our researches involve the following aspects: (1) The training objective of the specialty; (2) the curriculum system; (3) The teaching methodology; and (4) Field training.

  10. The improvement of maintenance service for traction networks equipment on the base of process approach

    Directory of Open Access Journals (Sweden)

    D. V. Mironov

    2014-12-01

    Full Text Available Purpose. The new methods development for improving the maintenance service for equipment of traction networks in order to increase its efficiency and quality. Methodology. In world practice of solving problems related to the quality of products and services is usually achieved by introducing quality management system in to the enterprises. The provisions of quality management system were used for solving the problem. The technologies of process engineering were used for describing the main stages of maintenance service. Findings. The development of high-speed movement and growth of its intensity, the use of electric rolling stock of a new generation require the introduction of new methods diagnostics of equipment technical state and improvement of the existing maintenance system and repair of power supply. Developing a model of business-processes, their optimization with using techniques of process engineering and system management is needed for the transition to the management system based on the process approach. From the standpoint of the process approach and in accordance with the requirements of the quality management system (ISO 9001-2009, the operation of the E (Department of electrification and power supply infrastructure sector is represented as a scheme of business-processes in which the guaranteed supply with electricity of railway and third-party consumers is defined as the main business-process of management. Each of the sub-process of power supply for consumers is described in details. The use methods and main stages of process approach for sample management system reorganization were investigated. The methodology and the application method of PDCA (Plan-Do-Check-Act closed loop to the equipment maintenance system were described. The monitoring process of traction networks maintenance using the process approach was divided into components after investigations. The technical documentation of maintenance service was investigated in

  11. A Decision Optimization Model for Leased Manufacturing Equipment with Warranty under Forecasting Production/Maintenance Problem

    Directory of Open Access Journals (Sweden)

    Zied Hajej

    2015-01-01

    Full Text Available Due to the expensive production equipment, many manufacturers usually lease production equipment with a warranty period during a finite leasing horizon, rather than purchasing them. The lease contract contains the possibility of obtaining an extended warranty for a given additional cost. In this paper, based on the forecasting production/maintenance optimization problem, we develop a mathematical model to study the lease contract with basic and extended warranty based on win-win relationship between the lessee and the lessor. The influence of the production rates in the equipment degradation consequently on the total cost by each side during the finite leasing horizon is stated in order to determine a theoretical condition under which a compromise-pricing zone exists under different possibilities of maintenance policies.

  12. Maintenance related to life management: Survey and control of equipment ageing

    International Nuclear Information System (INIS)

    The aim of this paper is to review relevant objectives and aspects of the Maintenance Evaluation and Improvement Programmes for Nuclear Power Plant Life Management. Recent experience shows that current maintenance practice often fails to directly address long-term degradation that affects singular plant components and equipment populations. Instead, delayed attention to the consequences makes good Life Management unfeasible. This has brought about the need for specific Maintenance Evaluation and Improvement Programmes to adjust to the basic objective of Life Management which is to protect against, mitigate and/or monitor ageing that affects the safe, profitable life of the facility. The paper analyses the methodologies used, incidents during their application and the main conclusions reached from the implementation of these programmes in Spanish nuclear power plants. Special attention is paid to recommended solutions for improving the efficiency of the utility's contributions, its leadership in task development and integration, and its interfaces with organisations specialised in providing services that support Life Management Programmes. The coexistence of these and other similar maintenance programmes make it necessary to integrate tasks to optimise effort and tools. The paper analyses the guidelines to be considered when integrating these Programmes with other maintenance optimisation programmes (economy and feasibility, RCM) and with tasks derived from the application of Maintenance Rule regulatory requirements. Lastly, the paper reports on the state of these Maintenance Evaluation and Improvement Programmes, their development, what prospects they have, and the Industry's initiative and actions concerning the matter. (author)

  13. Simultaneous effect of RCM key indicators, related to equipment lifecycle for maintenance strategies (in production systems

    Directory of Open Access Journals (Sweden)

    Mohammad Zadhoosh

    2015-07-01

    Full Text Available In the modern industrial world, effective role of maintenance activities in the survival of organizations and enhancing their productivity is undeniable. Variety of equipments in the industrial organizations and their exclusivities in terms of longevity and failures modes, clear the importance of choosing a strategy for the maintenance of any equipment. Thus, knowing the type of the failure is so important for maintenance manager and engineers. Important introduced indicators in this domain such as indicator of reliability, MTBF and MTTR can be used to predicting and detecting approximate failure time and analyzing life cycle status. On the other hand, due to fluctuating time of system availability because of work continuity and loss of a performance indicator, by combining RCM indicators and Overall Equipment Effectiveness (OEE indicator the most compatible strategy could be chosen. The aim of this article which differs from other studies in this field is to apply a composed indicator, including different parameters of RCM, which is obtained based on the equipment life status.

  14. Business process reengineering in the inventory management to improve aircraft maintenance operations in the Indonesian Air Force

    OpenAIRE

    Susanto, Martinus Bram.

    2006-01-01

    The Indonesian Air Force has utilized computers in its administration as early as 1990. The computers, however, have not yet been optimized to support inventory management in aircraft maintenance operations, especially for the helicopter fleet. The processes for materials procurement to support the maintenance operations still rely heavily on the services of intermediaries'. Even though the Air Force has already adopted the Automatic Logistic Management System (ALMS), this has several weaknes...

  15. The impact of environmental qualification of safety related equipment on future maintenance activities at Darlington NGS

    International Nuclear Information System (INIS)

    CANDU nuclear station owners are faced with and increasing amount of equipment considered to be safety related and required to operate successfully during common mode design basis events (CMDBE), such as earthquakes, loss of coolant accidents, main steam line breaks, etc. Designers are faced with the task of either protecting this equipment from the consequence of the events, or supplying equipment which will operate in the environment expected during these events. This trend has continued at Darlington Nuclear Generating Station (NGS) with the identification of 125 safety related systems which must perform a function during or after the CMDBE. In addition to protecting or hardening the safety related equipment, the designers must also provide assurance that the equipment is capable of operating reliably during any of these events. At Darlington NGS, the effects of aging mechanisms on components of safety related equipment is also being taken into account. This paper describes the Darlington Environmental Qualification Program, and discusses how it will change the nature of safety related equipment maintenance, surveillance, and replacement programs

  16. Design and Application of an Expert System for Equipment Maintenance and Forecast

    Institute of Scientific and Technical Information of China (English)

    WANG Jian; PAN Kai-long; SHEN Yun-feng; LI Jie

    2007-01-01

    The maintenance and forecast expert system of equipment based on Artificial Neural Network is composed of control, measure, failure forecast, execution, data processing module and database. The data processing module obtains the change of the controlled objects′ structure and parameters, then takes correspondent measures according to the examination and diagnosis information. The failure forecast module finds the control system fault, separates the fault symptom location, tells the fault kind, estimates the magnitude and time of the fault, and finally makes evaluation and decision.

  17. The Activity Based Costing method opportunity to assess and master the aircraft maintenance service cost for Third Party: A Case Study

    Directory of Open Access Journals (Sweden)

    Driss Rchid

    2013-01-01

    Full Text Available This work illustrates how to calculate accurate aircraft maintenance costs using Activity Based Costing (ABC. Comparing to traditional cost calculation, the proposed method is useful for aircrafts maintenance activity integrated to Airline Company and who wants to diversify its revenue by selling some available maintenance slots to third party clients for a competitive price. This paper takes base maintenance check process of a Moroccan airline aircrafts maintenance activity as a case study. The actual method used to calculate aircraft maintenance check cost cant not be applied to third party client pricing system. The ABC method shows substantial benefits if it is successfully implemented. Data collection through interviews and questionnaires are the main sources to this study.

  18. Long Length Contaminated Equipment Retrieval System Receiver Trailer and Transport Trailer Operations and Maintenance Manual

    Energy Technology Data Exchange (ETDEWEB)

    DALE, R.N.

    2000-05-01

    A system to accommodate the removal of long-length contaminated equipment (LLCE) from Hanford underground radioactive waste storage tanks was designed, procured, and demonstrated, via a project activity during the 1990s. The system is the Long Length Contaminated Equipment Removal System (LLCERS). LLCERS will be maintained and operated by Tank Farms Engineering and Operations organizations and other varied projects having a need for the system. The responsibility for the operation and maintenance of the LLCERS Receiver Trailer (RT) and Transport Trailer (TT) resides with the RPP Characterization Project Operations organization. The purpose of this document is to provide vendor supplied operating and maintenance (O & M) information for the RT and TT in a readily retrievable form. This information is provided this way instead of in a vendor information (VI) file to maintain configuration control of the operations baseline as described in RPP-6085, ''Configuration Management Plan for Long Length Contaminated Equipment Receiver and Transport Trailers''. Additional Operations Baseline documents are identified in RPP-6085.

  19. Long Length Contaminated Equipment Retrieval System Receiver Trailer and Transport Trailer Operations and Maintenance Manual

    International Nuclear Information System (INIS)

    A system to accommodate the removal of long-length contaminated equipment (LLCE) from Hanford underground radioactive waste storage tanks was designed, procured, and demonstrated, via a project activity during the 1990s. The system is the Long Length Contaminated Equipment Removal System (LLCERS). LLCERS will be maintained and operated by Tank Farms Engineering and Operations organizations and other varied projects having a need for the system. The responsibility for the operation and maintenance of the LLCERS Receiver Trailer (RT) and Transport Trailer (TT) resides with the RPP Characterization Project Operations organization. The purpose of this document is to provide vendor supplied operating and maintenance (O and M) information for the RT and TT in a readily retrievable form. This information is provided this way instead of in a vendor information (VI) file to maintain configuration control of the operations baseline as described in RPP-6085, ''Configuration Management Plan for Long Length Contaminated Equipment Receiver and Transport Trailers''. Additional Operations Baseline documents are identified in RPP-6085

  20. PSA and methods to optimize the maintenance of safety related equipment at Laguna Verde NPP

    International Nuclear Information System (INIS)

    In this paper the most significant advances reached in the development of a project to optimize the maintenance and surveillance tests of safety related equipment at Laguna Verde Nuclear Power Plant (LV NPP) are described. The first part of this process consists of the application of risk-based results and techniques using the specific PSA Level 1 of LV. Before the use of these risk-based techniques in the generation and interpretation of results, it was necessary to perform a review of the risk criteria used in PSA applications for prioritization of maintainable components, determination of risk-based allowed outage times and surveillance test intervals, definition of component risk classes, determination of risk significances for systems and components within the scope of the maintenance rule, besides criteria used in a first approach to evaluate simultaneous inoperabilities impacting the risk. Partial results of the application of risk methods for AOTs, STIs and simultaneous inoperabilities are presented. Also some results of the application of a selected method for maintenance optimization focused on reliability are explained. The results involve descriptions about the determination and prioritization of risk significant components, advances in the review of operational experience of a selected system to determine dominant failure modes and the comparison with those failures modeled in the LV PSA, operational experience review to assess the real times spent in maintenance activities for different types of components and, review of maintenance activities addressed to minimize the identified failure modes. Within the regulatory assessment of the maintenance rule implementation in LV by the utility, some results of the independent work done by our regulatory staff to select those structures systems and components (SSCs) to be under the scope of the maintenance rule are presented. Also a discussion of our perspective about the establishment of performance criteria

  1. IMIS: Integrated Maintenance Information System. A maintenance information delivery concept

    Science.gov (United States)

    Vonholle, Joseph C.

    1987-01-01

    The Integrated Maintenance Information System (IMIS) will optimize the use of available manpower, enhance technical performance, improve training, and reduce the support equipment and documentation needed for deployment. It will serve as the technician's single, integrated source of all the technical information required to perform modern aircraft maintenance.

  2. Maintenance service contract model for heavy equipment in mining industry using principal agent theory

    Science.gov (United States)

    Pakpahan, Eka K. A.; Iskandar, Bermawi P.

    2015-12-01

    Mining industry is characterized by a high operational revenue, and hence high availability of heavy equipment used in mining industry is a critical factor to ensure the revenue target. To maintain high avaliability of the heavy equipment, the equipment's owner hires an agent to perform maintenance action. Contract is then used to control the relationship between the two parties involved. The traditional contracts such as fixed price, cost plus or penalty based contract studied is unable to push agent's performance to exceed target, and this in turn would lead to a sub-optimal result (revenue). This research deals with designing maintenance contract compensation schemes. The scheme should induce agent to select the highest possible maintenance effort level, thereby pushing agent's performance and achieve maximum utility for both parties involved. Principal agent theory is used as a modeling approach due to its ability to simultaneously modeled owner and agent decision making process. Compensation schemes considered in this research includes fixed price, cost sharing and revenue sharing. The optimal decision is obtained using a numerical method. The results show that if both parties are risk neutral, then there are infinite combination of fixed price, cost sharing and revenue sharing produced the same optimal solution. The combination of fixed price and cost sharing contract results in the optimal solution when the agent is risk averse, while the optimal combination of fixed price and revenue sharing contract is obtained when agent is risk averse. When both parties are risk averse, the optimal compensation scheme is a combination of fixed price, cost sharing and revenue sharing.

  3. 14 CFR 91.535 - Stowage of food, beverage, and passenger service equipment during aircraft movement on the...

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Stowage of food, beverage, and passenger service equipment during aircraft movement on the surface, takeoff, and landing. 91.535 Section 91.535 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES...

  4. 14 CFR 135.122 - Stowage of food, beverage, and passenger service equipment during aircraft movement on the...

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Stowage of food, beverage, and passenger service equipment during aircraft movement on the surface, takeoff, and landing. 135.122 Section 135.122 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR CARRIERS AND OPERATORS FOR COMPENSATION OR...

  5. USE OF REMPI-TOFMS FOR REAL-TIME MEASUREMENT OF TRACE AROMATICS DURING OPERATION OF AIRCRAFT GROUND EQUIPMENT

    Science.gov (United States)

    Emissions of aromatic air toxics from aircraft ground equipment were measured with a resonance enhanced multiphoton ionization—time of flight mass spectrometry (REMPI-TOFMS) system consisting of a pulsed solid state laser for photoionization and a TOFMS for mass discrimination. T...

  6. Emissions of NOx, particle mass and particle numbers from aircraft main engines, APU's and handling equipment at Copenhagen Airport

    Science.gov (United States)

    Winther, Morten; Kousgaard, Uffe; Ellermann, Thomas; Massling, Andreas; Nøjgaard, Jacob Klenø; Ketzel, Matthias

    2015-01-01

    This paper presents a detailed emission inventory for NOx, particle mass (PM) and particle numbers (PN) for aircraft main engines, APU's and handling equipment at Copenhagen Airport (CPH) based on time specific activity data and representative emission factors for the airport. The inventory has a high spatial resolution of 5 m × 5 m in order to be suited for further air quality dispersion calculations. Results are shown for the entire airport and for a section of the airport apron area ("inner apron") in focus. The methodology presented in this paper can be used to quantify the emissions from aircraft main engines, APU and handling equipment in other airports. For the entire airport, aircraft main engines is the largest source of fuel consumption (93%), NOx, (87%), PM (61%) and PN (95%). The calculated fuel consumption [NOx, PM, PN] shares for APU's and handling equipment are 5% [4%, 8%, 5%] and 2% [9%, 31%, 0%], respectively. At the inner apron area for handling equipment the share of fuel consumption [NOx, PM, PN] are 24% [63%, 75%, 2%], whereas APU and main engines shares are 43% [25%, 19%, 54%], and 33% [11%, 6%, 43%], respectively. The inner apron NOx and PM emission levels are high for handling equipment due to high emission factors for the diesel fuelled handling equipment and small for aircraft main engines due to small idle-power emission factors. Handling equipment is however a small PN source due to the low number based emission factors. Jet fuel sulphur-PM sensitivity calculations made in this study with the ICAO FOA3.0 method suggest that more than half of the PM emissions from aircraft main engines at CPH originate from the sulphur content of the fuel used at the airport. Aircraft main engine PN emissions are very sensitive to the underlying assumptions. Replacing this study's literature based average emission factors with "high" and "low" emission factors from the literature, the aircraft main engine PN emissions were estimated to change with a

  7. A Real-Time Quantitative Condition Alerting and Analysis Support System for Aircraft Maintenance Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Financial constraints and the need for improved operational efficiency are requiring airlines to emphasize "on-condition" maintenance over scheduled maintenance...

  8. Lack of maintenance of shortwave diathermy equipment has a negative impact on power output.

    Science.gov (United States)

    Guirro, Rinaldo Roberto de Jesus; Guirro, Elaine Caldeira de Oliveira; Alves de Sousa, Natanael Teixeira

    2014-04-01

    Although shortwave diathermy has been widely used by physiotherapists, there are a few studies assessing the performance of the equipment in use. The aim of the present study was to evaluate the procedures adopted by physiotherapists as users of shortwave diathermy continuous (CSWD), as well as to measure the power output and frequency of CSWD equipment. [Subjects and Methods] Twenty-three physical therapists were interviewed and 23 CSWD equipment were evaluated. Admeasurement was carried out by using a standard phantom to simulate the electrode-skin distance, which ranged from 0.5 to 3.0 cm. Data analysis was performed by using descriptive statistics, ANOVA, and a post-hoc Tukey's test or Pearson's correlation coefficient. [Results] The questionnaires showed that 48% of the interviewees use the correct electrode-skin distance, 70% use a single electrical outlet, and 35% use a grounded electrical outlet, and that 48% of the physiotherapy tables and 61% of the plinths were made of wood. However, only 13% of the interviewees perform yearly preventive maintenance. The highest power (95.56 W) was achieved at electrode-skin distances ranging from 1.0 to 1.5 cm, with distances of 2.5 cm and 3.0 cm being null in four and eight equipment, respectively. There was a negative correlation between power output and electrode-skin distance as well as between power output and purchase date. [Conclusion] The physiotherapists involved in this study had inadequate knowledge about the correct use of CSWD equipment, which may adversely affect its performance and patient safety. PMID:24764633

  9. Decontamination chamber for the maintenance of DUPIC nuclear fuel fabrication and process equipment

    International Nuclear Information System (INIS)

    This report presents the decontamination chamber of being capable of decontaminating and maintaining DUPIC nuclear fuel fabrication equipment contaminated in use. The decontamination chamber is a closed room in which contaminated equipment can be isolated from a hot-cell, be decontaminated and be reparired. This chamber can prevent contamination from spreading over the hot-cell, and it can also be utilized as a part of the hot-cell after maintenance work. The developed decontamination chamber has mainly five sub-modules - a horizontal module for opening and closing a ceil of the chamber, a vertical module for opening and closing a side of the chamber, a subsidiary door module for enforcing the vertical opening/closing module, a rotary module for rotating contaminated equipment, and a grasping module for holding a decontamination device. Such sub-modules were integrated and installed in the M6 hot-cell of the IMEF at the KAERI. The mechanical design considerations of each modules and the arrangement with hot-cell facility, remote operation and manipulation of the decontamination chamber are also described

  10. Decontamination chamber for the maintenance of DUPIC nuclear fuel fabrication and process equipment

    Energy Technology Data Exchange (ETDEWEB)

    Kim, K. H.; Park, J. J.; Yang, M. S.; Lee, H. H.; Shin, J. M

    2000-10-01

    This report presents the decontamination chamber of being capable of decontaminating and maintaining DUPIC nuclear fuel fabrication equipment contaminated in use. The decontamination chamber is a closed room in which contaminated equipment can be isolated from a hot-cell, be decontaminated and be reparired. This chamber can prevent contamination from spreading over the hot-cell, and it can also be utilized as a part of the hot-cell after maintenance work. The developed decontamination chamber has mainly five sub-modules - a horizontal module for opening and closing a ceil of the chamber, a vertical module for opening and closing a side of the chamber, a subsidiary door module for enforcing the vertical opening/closing module, a rotary module for rotating contaminated equipment, and a grasping module for holding a decontamination device. Such sub-modules were integrated and installed in the M6 hot-cell of the IMEF at the KAERI. The mechanical design considerations of each modules and the arrangement with hot-cell facility, remote operation and manipulation of the decontamination chamber are also described.

  11. Integrated Instrumentation and Sensor Systems Enabling Condition-Based Maintenance of Aerospace Equipment

    Directory of Open Access Journals (Sweden)

    Richard C. Millar

    2012-01-01

    Full Text Available The objective of the work reported herein was to use a systems engineering approach to guide development of integrated instrumentation/sensor systems (IISS incorporating communications, interconnections, and signal acquisition. These require enhanced suitability and effectiveness for diagnostics and health management of aerospace equipment governed by the principles of Condition-based maintenance (CBM. It is concluded that the systems engineering approach to IISS definition provided clear benefits in identifying overall system requirements and an architectural framework for categorizing and evaluating alternative architectures, relative to a bottom up focus on sensor technology blind to system level user needs. CBM IISS imperatives identified include factors such as tolerance of the bulk of aerospace equipment operational environments, low intrusiveness, rapid reconfiguration, and affordable life cycle costs. The functional features identified include interrogation of the variety of sensor types and interfaces common in aerospace equipment applications over multiplexed communication media with flexibility to allow rapid system reconfiguration to adapt to evolving sensor needs. This implies standardized interfaces at the sensor location (preferably to open standards, reduced wire/connector pin count in harnesses (or their elimination through use of wireless communications.

  12. Standard Test Method to Determine Color Change and Staining Caused by Aircraft Maintenance Chemicals upon Aircraft Cabin Interior Hard Surfaces

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2001-01-01

    1.1 This test method covers the determination of color change and staining from liquid solutions, such as cleaning or disinfecting chemicals or both, on painted metallic surfaces and nonmetallic surfaces of materials being used inside the aircraft cabin. The effects upon the exposed specimens are measured with the AATCC Gray Scale for Color Change and AATCC Gray Color Scale for Staining. Note 1—This test method is applicable to any colored nonmetallic hard surface in contact with liquids. The selected test specimens are chosen because these materials are present in the majority of aircraft cabin interiors. 1.2This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

  13. Aircraft

    Science.gov (United States)

    Hibbs, Bart D.; Lissaman, Peter B. S.; Morgan, Walter R.; Radkey, Robert L.

    1998-01-01

    This disclosure provides a solar rechargeable aircraft that is inexpensive to produce, is steerable, and can remain airborne almost indefinitely. The preferred aircraft is a span-loaded flying wing, having no fuselage or rudder. Travelling at relatively slow speeds, and having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing's top surface, the aircraft uses only differential thrust of its eight propellers to turn. Each of five sections of the wing has one or more engines and photovoltaic arrays, and produces its own lift independent of the other sections, to avoid loading them. Five two-sided photovoltaic arrays, in all, are mounted on the wing, and receive photovoltaic energy both incident on top of the wing, and which is incident also from below, through a bottom, transparent surface. The aircraft is capable of a top speed of about ninety miles per hour, which enables the aircraft to attain and can continuously maintain altitudes of up to sixty-five thousand feet. Regenerative fuel cells in the wing store excess electricity for use at night, such that the aircraft can sustain its elevation indefinitely. A main spar of the wing doubles as a pressure vessel that houses hydrogen and oxygen gasses for use in the regenerative fuel cell. The aircraft has a wide variety of applications, which include weather monitoring and atmospheric testing, communications, surveillance, and other applications as well.

  14. Prediction of Maintenance Period of Equipment Through Risk Assessment of Thermal Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Song, Gee Wook; Kim, Bum Shin; Choi, Woo Song; Park, Myung Soo [KEPCO Research Institute, Daejeon (Korea, Republic of)

    2013-10-15

    Risk-based inspection (RBI) is a well-known method that is used to optimize inspection activities based on risk analysis in order to identify the high-risk components of major facilities such as power plants. RBI, when implemented and maintained properly, improves plant reliability and safety while reducing unplanned outages and repair costs. Risk is given by the product of the probability of failure (Pof) and the consequence of failure (COF). A semi-quantitative method is generally used for risk assessment. Semi-quantitative risk assessment complements the low accuracy of qualitative risk assessment and the high expense and long calculation time of quantitative risk assessment. The first step of RB I is to identify important failure modes and causes in the equipment. Once these are defined, the Pof and COF can be assessed for each failure. During Pof and COF assessment, an effective inspection method and range can be easily found. In this paper, the calculation of the Pof is improved for accurate risk assessment. A modified semi-quantitative risk assessment was carried out for boiler facilities of thermal power plants, and the next maintenance schedules for the equipment were decided.

  15. Study on compact design of remote handling equipment for ITER blanket maintenance

    International Nuclear Information System (INIS)

    In the ITER, the neutrons created by D-T reactions activate structural materials, and thereby, the circumstance in the vacuum vessel is under intense gamma radiation field. Thus, the in-vessel components such as blanket are handled and replaced by remote handling equipment. The objective of this report is to study the compactness of the remote handling equipment (a vehicle/manipulator) for the ITER blanket maintenance. In order to avoid the interferences between the blanket and the equipment during blanket replacement in the restricted vacuum vessel, a compact design of the equipment is required. Therefore, the compact design is performed, including kinematic analyses aiming at the reduction of the sizes of the vehicle equipped with a manipulator handling the blanket and the rail for the vehicle traveling in the vacuum vessel. Major results are as follows: 1. The compact vehicle/manipulator is designed concentration on the reduction of the rail size and simplification of the guide roller mechanism as well as the reduction of the gear diameter for vehicle rotation around the rail. Height of the rail is reduced from 500 mm to 400 mm by a parameter survey for weight, stiffness and stress of the rail. The roller mechanism is divided into two simple functional mechanisms composed of rollers and a pad, that is, the rollers support relatively light loads during rail deployment and vehicle traveling while a pad supports heavy loads during blanket replacement. Regarding the rotation mechanism, the double helical gear is adopted, because it has higher contact ratio than the normal spur gear and consequently can transfer higher force. The smaller double helical gear, 996 mm in diameter, can achieve 26% higher output torque, 123.5 kN·m, than that of the original spur gear of 1,460 mm in diameter, 98 kN·m. As a result, the manipulator becomes about 30% lighter, 8 tons, than the original weight, 11.2 tons. 2. Based on the compact design of the vehicle/manipulator, the

  16. Optimal long-term aircraft carrier deployment planning with synchronous depot level maintenance scheduling

    OpenAIRE

    Ayik, Mehmet

    1998-01-01

    Approved for public release; distribution is unlimited Forward deployment of Navy aircraft carrier battle groups is a primary means for the United States to achieve overseas interests. The Navy maintains the forward presence of aircraft carriers in three major Areas of Responsibility (AORs): the Mediterranean Sea, the Persian Gulf, and the Western Pacific. Considering the cost of carrier operations and the desire to maximize coverage of the AORs, planning deployments for the carriers not o...

  17. Introduction of Coal Mine Mechanical and Electrical Equipment Maintenance Management Mode%浅谈煤矿机电设备维修管理模式

    Institute of Scientific and Technical Information of China (English)

    乔二斌

    2015-01-01

    In order to scientific and efficient maintenance management of the coal mine mechanical and electrical equipment,to compare the ex post maintenance, planned maintenance, preventive maintenance management mode and diversified coal mine mechanical and electrical equipment maintenance plan these four models used in coal mine mechanical and electrical equipment maintenance and management of the advantages and disadvantages. The after maintenance management mode will accelerate equipment loss, increase maintenance costs, the planned maintenance management mode can reduce fault, save the maintenance cost, the preventive maintenance management mode to reduce the incidence of failure, but the impact the production efficiency, the diversified coal mine mechanical and electrical equipment maintenance scheme can accurately locate the fault parts, but the higher technical requirements. Establish and improve the coal mine electrical and mechanical equipment daily maintenance and maintenance regulations, improve the coal mine mechanical and electrical equipment maintenance management system, improving coal mine mechanical and electrical equipment maintenance management and continuously improve equipment maintenance and testing new methods to improve equipment repair and maintenance scheme is an effective means to improve the efficiency of maintenance management.%为了科学高效的维修管理煤矿的机电设备.比较事后维修管理模式、计划性维修管理模式、预防维修管理模式和多元化煤矿机电设备维修方案这4种模式用于煤矿的机电设备维修和管理的优缺点.事后维修管理模式会加速设备损耗,增加维修费用;计划性维修管理模式可减少故障,节省维修成本;预防维修管理模式降低故障发生率,但影响生产效率;多元化煤矿机电设备维修方案能够准确定位故障部位,但对技术要求较高.最后得出结论,建立健全煤矿机电设备日常维护与保养规范、完善

  18. Two fuzzy possibilistic bi-objective zero-one programming models for outsourcing the equipment maintenance problem

    Science.gov (United States)

    Vahdani, Behnam; Jolai, Fariborz; Tavakkoli-Moghaddam, Reza; Meysam Mousavi, S.

    2012-07-01

    Maintenance outsourcing can be regarded as a strategic weapon to increase productivity and customer satisfaction in many companies, and this critical activity can be performed in a more efficient and effective way. This article presents two novel fuzzy possibilistic bi-objective zero-one programming (FPBOZOP) models for outsourcing of the equipment maintenance. In these models, cost parameters, including outsourcing cost, risk cost, time operations for performing the equipment maintenance and reliability level, as well as other influential parameters are considered through the outsourcing process. Moreover, the presented models can measure the capability of the company in doing different activities, unlike previous studies, in order to see the possibility of maintenance in-house, and can lead to make a best decision on the basis of the models' results. Both models are developed under uncertainty, which bring top managers the possibility of assigning more than one equipment or project to the supplier so that the profit is maximized, and the cost is minimized by considering bi-objectives concurrently. Then, a new fuzzy mathematical programming based possibilistic approach is introduced as a solution methodology from the recent literature to solve the proposed bi-objective zero-one programming (BOZOP) models and to reach a preferred compromise solution. Furthermore, a real-case study is utilized to demonstrate and to validate the effectiveness of the presented models. The computational results revealed that the models can be implemented in variety of problems in the domain of the equipment maintenance outsourcing and project outsourcing either from theory or application perspectives.

  19. Test blanket module maintenance operations between port plug and ancillary equipment unit in ITER

    International Nuclear Information System (INIS)

    In collaboration between the FZK and KFKI-RMKI, in the frame of the activities of the EU Breeder Blanket Programme a concept for test blanket module (TBM) integration, maintenance schedules and all required special purpose equipments has been developed. During the first 10 years of ITER operation four different plasma scenarios will be used. Hence it will be possible to investigate the characteristics (e.g. tritium breeding performance) of different TBM concepts which will be installed during operation for the different phases of ITER operation in the equatorial ports 2, 16 and 18. In every port two TBMs will be accommodated, in the port 16 will be the European helium-cooled pebble bed blanket. In different phases of ITER operation different TBMs will be used. Therefore a complex maintenance process is necessary for the exchange of TBMs. Two TBMs are mounted onto one common frame, into a port plug (PP), which offers a standardised interface to the vacuum vessel (VV). It is cantilevered with a flange to VV port extension. This attachment system is the same in every equatorial port, so the exchange process of this structure with the TBMs is also the standard operation of ITER. Several components of the helium cooling system of the EU breeder modules, valves, pipes, gas mixers, thermal sleeves, pipes for tritium extraction, measurement system are integrated into the ancillary equipment unit (AEU), which during the operation will connect the port plug to the subsystems. The bigger part of the AEU is accommodated in the port cell and the rest part of it is penetrated into the interspace inside the bioshield and reach the back plane of the installed PP. The remote handling operations for connection/disconnection of an interface between the PP of the EU-TBMs and the AEU are investigated with the goal to reach a quick and simple TBM exchange procedure. The current design of the EU-TBMs foresees up to 18 supply lines for both TBMs. These lines have to be connected here. A

  20. Test blanket module maintenance operations between port plug and ancillary equipment unit in ITER

    International Nuclear Information System (INIS)

    In collaboration between the FZK and KFKI-RMKI, in the frame of the activities of the EU Breeder Blanket Programme a concept for Test Blanket Module (TBM) integration, maintenance schedules and all required special purpose equipments has been developed. During the first 10 years of ITER operation 4 different plasma scenarios will be used. Hence it will be possible to investigate the characteristics (e.g. tritium breeding performance) of different TBM concepts which will be installed during operation for the different phases of ITER operation in the equatorial ports 2, 16 and 18. In every port will be two TBMs accomodated, in the port 16 will be the the European Helium Cooled Pebble Bed blanket. In the different phases of ITER operation different TBMs will be used. Therefore a complex maintenance process is necessary for exchange the TBMs. Two TBMs are mounted into one common frame, into a Port Plug (PP), which offers a standardised interface to the Vacuum Vessel (VV). It is cantilevered with a flange to VV Port Extension. This attachment system is the same in every equatorial port, so the exchange process of this structure with the TBMs are also standard operation of ITER. Several components of the Helium cooling system of the EU breeder modules, valves, pipes, gas mixers, thermal sleeves, pipes for tritium extraction, measurement system, etc. All of them is integrated into the Ancillary Equipment Unit (AEU) which during operation will connect the port plug to the sub systems. The bigger part of the AEU is accomodated in the Port Cell and the rest part of it is penetrate to the interspace inside the bioshield and reach the back plane of the installed PP. The remote handling operations for connection / disconnection of an interface between the PP of the EU-TBMs and the AEU are investigated with the goal to reach a quick and simple TBM exchange procedure. The current design of the EU-TBMs foresees up to 18 supply lines for both TBMs. These lines have to be connected

  1. 36 CFR 293.6 - Commercial enterprises, roads, motor vehicles, motorized equipment, motorboats, aircraft...

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false Commercial enterprises, roads..., DEPARTMENT OF AGRICULTURE WILDERNESS-PRIMITIVE AREAS § 293.6 Commercial enterprises, roads, motor vehicles... National Forest Wilderness no commercial enterprises; no temporary or permanent roads; no aircraft...

  2. Penerapan Total Productive Maintenance Pada Pembangkit Listriktenaga Gas Gt 2.1 Dengan Metode Overall Equipment Effectiveness

    OpenAIRE

    Tarigan, Irvan Maulana

    2015-01-01

    PT. PLN (Persero) is a company engaged in the processing of electrical energy which is inseparable from the effectiveness of machinery and equipment problems caused by the six big losses. The impact of these problems will interfere with the machine work in accordance with the results that should be achieved. Hence the need for special attention regarding the maintenance and care of the machine with the purpose of the machine is capable of committing a longer production proce...

  3. Safety-related equipment prioritization for reliability centered maintenance purposes based on a plant specific level 1 PSA

    International Nuclear Information System (INIS)

    Importance measures are widely used for multiple purposes concerning safety improvement of nuclear power plants (NPPs). This paper proposes a new approach for performing the safety-related equipment prioritization for reliability centered maintenance purposes that considers two measures of risk importance of components based on a simplified Core Damage Frequency model derived from the plant specific level 1 PSA. It is also included the case of application to the Residual Heat Removal System (RHRS) at the Confrentes NPP in Spain

  4. An estimation method for direct maintenance cost of aircraft components based on particle swarm optimization with immunity algorithm

    Institute of Scientific and Technical Information of China (English)

    WU Jing-min; ZUO Hong-fu; CHEN Yong

    2005-01-01

    A particle swarm optimization (PSO) algorithm improved by immunity algorithm (IA) was presented.Memory and self-regulation mechanisms of IA were used to avoid PSO plunging into local optima. Vaccination and immune selection mechanisms were used to prevent the undulate phenomenon during the evolutionary process. The algorithm was introduced through an application in the direct maintenance cost (DMC) estimation of aircraft components. Experiments results show that the algorithm can compute simply and run quickly. It resolves the combinatorial optimization problem of component DMC estimation with simple and available parameters. And it has higher accuracy than individual methods, such as PLS, BP and v-SVM, and also has better performance than other combined methods, such as basic PSO and BP neural network.

  5. Dose expenditure minimization during the NPP equipment and systems maintenance and repair

    International Nuclear Information System (INIS)

    Dose expenditure change depending on NPP operation term was estimated as well as maintenance and repair contribution to the collective dose depending on the reactor type. The ways to decrease the staff irradiation during the NPP maintenance were analyzed. The optimization relevance when radioactive protection choosing was shown

  6. Characterization of the maintenance management of biomedical equipment in emergency services in clinics and hospitals in Medellin period 2008-2009

    Directory of Open Access Journals (Sweden)

    William Orozco Murillo

    2013-01-01

    Full Text Available Maintenance management is a tool that supports Biomedical Engineering staff in the development, control and direction of maintenance programs for medical equipment. Objective: to characterize the maintenance management of biomedical equipment in emergency areas of medical institutions in the metropolitan area of Medellin during 2008-2009. Materials and methods: a survey was conducted with chiefs and maintenance technicians of eleven institutions classified at level 3, belonging to the health network of the municipality of Medellin. Results: among the medical institutions included in the present study, it was found that 80% of equipment failure was related with mishandling of the devices, and 70% of maintenance work developed during the period of study was carried out by qualified Biomedical Technicians/ Technologist. On the other hand, a weakness was observed in programs for medical equipment maintenance of the surveyed institutions, as it was found that most of them had only working PM schedules, and outdated record information of equipment regarding, maintenance, acquisition or decommissioning plans of equipment. Conclusion: the study shows the existence of weaknesses in certain areas of the maintenance, such also poor organization and management, and poor availability of original spare parts.

  7. Fault tolerant attitude control for small unmanned aircraft systems equipped with an airflow sensor array

    International Nuclear Information System (INIS)

    Inspired by sensing strategies observed in birds and bats, a new attitude control concept of directly using real-time pressure and shear stresses has recently been studied. It was shown that with an array of onboard airflow sensors, small unmanned aircraft systems can promptly respond to airflow changes and improve flight performances. In this paper, a mapping function is proposed to compute aerodynamic moments from the real-time pressure and shear data in a practical and computationally tractable formulation. Since many microscale airflow sensors are embedded on the small unmanned aircraft system surface, it is highly possible that certain sensors may fail. Here, an adaptive control system is developed that is robust to sensor failure as well as other numerical mismatches in calculating real-time aerodynamic moments. The advantages of the proposed method are shown in the following simulation cases: (i) feedback pressure and wall shear data from a distributed array of 45 airflow sensors; (ii) 50% failure of the symmetrically distributed airflow sensor array; and (iii) failure of all the airflow sensors on one wing. It is shown that even if 50% of the airflow sensors have failures, the aircraft is still stable and able to track the attitude commands. (paper)

  8. Fault tolerant attitude control for small unmanned aircraft systems equipped with an airflow sensor array.

    Science.gov (United States)

    Shen, H; Xu, Y; Dickinson, B T

    2014-01-01

    Inspired by sensing strategies observed in birds and bats, a new attitude control concept of directly using real-time pressure and shear stresses has recently been studied. It was shown that with an array of onboard airflow sensors, small unmanned aircraft systems can promptly respond to airflow changes and improve flight performances. In this paper, a mapping function is proposed to compute aerodynamic moments from the real-time pressure and shear data in a practical and computationally tractable formulation. Since many microscale airflow sensors are embedded on the small unmanned aircraft system surface, it is highly possible that certain sensors may fail. Here, an adaptive control system is developed that is robust to sensor failure as well as other numerical mismatches in calculating real-time aerodynamic moments. The advantages of the proposed method are shown in the following simulation cases: (i) feedback pressure and wall shear data from a distributed array of 45 airflow sensors; (ii) 50% failure of the symmetrically distributed airflow sensor array; and (iii) failure of all the airflow sensors on one wing. It is shown that even if 50% of the airflow sensors have failures, the aircraft is still stable and able to track the attitude commands. PMID:25405953

  9. 机械制造业设备维修外包体系研究%System of Equipment Maintenance Outsourcing for Machinery

    Institute of Scientific and Technical Information of China (English)

    董丽君; 孟翠玲

    2011-01-01

    Based on analyzing the features of equipment maintenance outsourcing for machinery, this article establishes a system of equipment maintenance outsourcing. Identify the objectives and tasks of equipment maintenance outsourcing and issue a process-based outsourcing equipment maintenance flow, which is useful for machinery to outsource equipment effectively.%在分析了机械制造业设备维修外包特点的基础上,建立了机械制造业设备维修外包的体系.明确了设备维修外包的目标和任务,建立基于流程的设备维修外包流程图,有助于机械制造业在设备维修外包的具体实施中更加有效地运作设备维修外包业务.

  10. Methods for Determining Aircraft Surface State at Lesser-Equipped Airports

    Science.gov (United States)

    Roach, Keenan; Null, Jody

    2016-01-01

    Tactical departure scheduling within a terminal airspace must accommodate a wide spectrum of surveillance and communication capabilities at multiple airports. The success of such a scheduler is highly dependent upon the knowledge of a departure's state while it is still on the surface. Airports within a common Terminal RAdar CONtrol (TRACON) airspace possess varying levels of surface surveillance infrastructure which directly impacts uncertainties in wheels-off times. Large airports have access to surface surveillance data, which is shared with the TRACON, while lesser-equipped airports still rely solely on controllers in Air Traffic Control Towers (Towers). Coordination between TRACON and Towers can be greatly enhanced when the TRACON controller has access to the surface surveillance and the associated decision-support tools at well-equipped airports. Similar coordination at lesser-equipped airports is still based on verbal communications. This paper investigates possible methods to reduce the uncertainty in wheels-off time predictions at the lesser-equipped airports through the novel use of Over-the-Air (OTA) data transmissions. We also discuss the methods and equipment used to collect sample data at lesser-equipped airports within a large US TRACON, as well as the data evaluation to determine if meaningful information can be extracted from it.

  11. 14 CFR Appendix A to Part 91 - Category II Operations: Manual, Instruments, Equipment, and Maintenance

    Science.gov (United States)

    2010-01-01

    ... display. However, a single localizer antenna and a single glide slope antenna may be used. (2) A... aircraft. (8) Two vertical speed indicators. (9) A flight control guidance system that consists of either an automatic approach coupler or a flight director system. A flight director system must...

  12. 77 FR 3323 - Airborne Radar Altimeter Equipment (For Air Carrier Aircraft)

    Science.gov (United States)

    2012-01-23

    ... [Federal Register Volume 77, Number 14 (Monday, January 23, 2012)] [Notices] [Pages 3323-3324] [FR... manufacturers currently manufacturing, advertising, or selling TSO-C67 compliant equipment. Therefore, given the... cancelling TSO-C67. Please note that TSO-C87, Airborne Low Range Radio Altimeter, is currently used for...

  13. Standard Test Method for Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft Surfaces

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2008-01-01

    1.1 This test method covers determination of the effects of cleaning solutions and liquid cleaner concentrates on painted aircraft surfaces (Note 1). Streaking, discoloration, and blistering may be determined visually. Softening is determined with a series of specially prepared pencils wherein determination of the softest pencil to rupture the paint film is made. Note 1—This test method is applicable to any paint film that is exposed to cleaning materials. MIL-PRF-85285 has been selected as a basic example. When other paint finishes are used, refer to the applicable material specification for panel preparation and system curing prior to testing. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user ...

  14. 冲压设备的管理与预防性维修实践%Management of stamping equipment and practice of preventive maintenance

    Institute of Scientific and Technical Information of China (English)

    查小福

    2016-01-01

    文章从基础管理和技术管理两个层面介绍了冲压设备的管理模式,并结合维践,冲压设备的预防性维修进行了探讨。%This artice from the basic management and technology management two aspects of the stamping equipment management model, and combined with the maintenance practice, the stamping equipment preventive maintenance is discussed.

  15. [The Application of the Fault Tree Analysis Method in Medical Equipment Maintenance].

    Science.gov (United States)

    Liu, Hongbin

    2015-11-01

    In this paper, the traditional fault tree analysis method is presented, detailed instructions for its application characteristics in medical instrument maintenance is made. It is made significant changes when the traditional fault tree analysis method is introduced into the medical instrument maintenance: gave up the logic symbolic, logic analysis and calculation, gave up its complicated programs, and only keep its image and practical fault tree diagram, and the fault tree diagram there are also differences: the fault tree is no longer a logical tree but the thinking tree in troubleshooting, the definition of the fault tree's nodes is different, the composition of the fault tree's branches is also different.

  16. DELMIA 人机工程在飞机虚拟维修中的应用%Application of DELMIA-ergonomics in aircraft virtual maintenance

    Institute of Scientific and Technical Information of China (English)

    王占海; 李勇; 王霖

    2015-01-01

    以目前航空部门普遍采用的 DELMIA 软件为平台,介绍了虚拟维修技术在飞机维修性设计中的作用,阐述了基于 DELMIA 软件的交互式虚拟维修流程,以及其中的虚拟场景构建、维修仿真过程和维修性分析、评价技术。%Digital Enterprise Lean Manufacturing Interactive Application (DELMIA),which was developed by the French Dassault Corporation and has been used widely in the aviation department in China,is an software for the aircraft virtual maintenance.In this paper,the virtual maintenance technology in the aircraft design and mainte-nance is fully introduced,including interactive virtual maintenance flow,the virtual scene structuring,the process of virtual maintenance simulation,the maintainability analysis and maintainability evaluation technology.

  17. 14 CFR 129.17 - Aircraft communication and navigation equipment for operations under IFR or over the top.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Aircraft communication and navigation....S.-REGISTERED AIRCRAFT ENGAGED IN COMMON CARRIAGE General § 129.17 Aircraft communication and... accuracy required for ATC; (ii) One marker beacon receiver providing visual and aural signals; and...

  18. Analysis of Equipment Maintenance Flow Based on Queuing Theory%基于排队论的装备维修过程分析

    Institute of Scientific and Technical Information of China (English)

    张波; 于永利; 徐英; 张柳; 孙志刚

    2012-01-01

    装备维修过程的分析是研究维修保障系统结构与运行的基础.以装备实际维修过程为依据,采用排队理论对维修过程中的基本维修排队结构进行了分析,建立了维修保障单元数量和损伤装备平均修复服务时间的关系模型.最后结合某型装备的维修过程实例,对该方法的可行性、实用性进行了验证.%The analysis of equipment maintenance flow is the basis of research on maintenance support system's structure and operation. According to equipment maintenance flow? The basic maintenance queuing structures are analyzed by queuing theory. The relation model of number of maintenance support unit and the mean time to repair service of failure equipment is built up. Finally, the feasibility and usability of the method are validated by a demonstration combining the maintenance flow of some equipment.

  19. Hydrodynamic and Aerodynamic Characteristics of a Model of a Supersonic Multijet Water-Based Aircraft Equipped with Supercavitating Hydrofoils

    Science.gov (United States)

    McKann, Robert E.; Blanchard, Ulysse J.; Pearson, Albin O.

    1960-01-01

    The hydrodynamic and aerodynamic characteristics of a model of a multijet water-based Mach 2.0 aircraft equipped with hydrofoils have been determined. Takeoff stability and spray characteristics were very good, and sufficient excess thrust was available for takeoff in approximately 32 seconds and 4,700 feet at a gross weight of 225,000 pounds. Longitudinal and lateral stability during smooth-water landings were good. Lateral stability was good during rough-water landings, but forward location of the hydrofoils or added pitch damping was required to prevent diving. Hydrofoils were found to increase the aerodynamic lift-curve slope and to increase the aerodynamic drag coefficient in the transonic speed range, and the maximum lift-drag ratio decreased from 7.6 to 7.2 at the cruise Mach number of 0.9. The hydrofoils provided an increment of positive pitching moment over the Mach number range of the tests (0.6 to 1.42) and reduced the effective dihedral and directional stability.

  20. Research on the Matching of Equipment Maintenance Strategy and Maintenance Subject%设备检维修策略及维修主体匹配问题研究

    Institute of Scientific and Technical Information of China (English)

    魏广华; 刘赟; 吕春莲; 张小波

    2011-01-01

    The system design of equipment maintenance is the core of the equipment management; furthermore the match of the maintenance strategy and the maintenance subject is the core of the system design of equipment maintenance. This article creates a model that can be widely applied to the factory and be testified in practice. The model provides an analysis and practical frame for the choice of maintenance strategy and maintenance subject.%设备检维修系统设计是设备管理的核心,而设备维修策略和维修主体匹配又是设备检维修系统设计的核心。建立一个可以广泛应用于企业的模型,并已通过实践的验证,为企业建立维修策略,选择维修主体提供了分析和应用的框架。

  1. 基于物联网技术的航卒装备维修安伞管理%Aviation equipment maintenance safety management based on IOT

    Institute of Scientific and Technical Information of China (English)

    王晓坤; 魏思东; 王平; 周广森

    2012-01-01

    对物联网和航空装备维修安全管理作了研究和分析,给出了应用物联网技术进行航空装备维修安全管理的具体对策,该策略对加快航空装备维修安全管理的信息化进程,提升航空装备维修安全管理效能具有重要意义。%After the research on and the analyses of the IOT and the aviation equipment maintenance security, specific measures for applying the IOT in aviation equipment maintenance safety management is proposed in this paper. The article has an important significance upon accelerating up the process of information and enhancing the management efficiency of the aviation equipment maintenance safety management.

  2. Challenges Analysis and Strategic Consideration on Medical Equipment Maintenance%医疗设备维修管理面临的挑战与战略思考

    Institute of Scientific and Technical Information of China (English)

    邓田华; 余波

    2015-01-01

    Expounding the status of the current domestic medical equipment maintenance management, and puting forward the strategic thinking of medical maintenance for the chal enges of equipment maintenance management in the hospital. This discussion can be performed to control the maintenance costs of hospital effectively, increase the income and social benefits of the hospital.%阐述当前国内医疗设备维修管理的现状,针对医院设备维修管理中存在的挑战,提出医疗维修服务战略方面的思考,有效控制医院日益增长的维修费用,并增加医院的经济效益和社会效益。

  3. LCC-OPS: Life Cycle Cost Application in Aircraft Operations

    NARCIS (Netherlands)

    Suwondo, E.

    2007-01-01

    Observation of current practices in aircraft operations and maintenance shows limited consideration of cost savings applied by aircraft modifications, maintenance program optimisation and aircraft selection. This is due to hidden (maintenance dependent) costs and difficulties in quantifying the util

  4. A prediction method based on grey system theory in equipment condition based maintenance

    International Nuclear Information System (INIS)

    Grey prediction is a modeling method based on historical or present, known or indefinite information, which can be used for forecasting the development of the eigenvalues of the targeted equipment system and setting up the model by using less information. In this paper, the postulate of grey system theory, which includes the grey generating, the sorts of grey generating and the grey forecasting model, is introduced first. The concrete application process, which includes the grey prediction modeling, grey prediction, error calculation, equal dimension and new information approach, is introduced secondly. Application of a so-called 'Equal Dimension and New Information' (EDNI) technology in grey system theory is adopted in an application case, aiming at improving the accuracy of prediction without increasing the amount of calculation by replacing old data with new ones. The proposed method can provide a new way for solving the problem of eigenvalue data exploding in equal distance effectively, short time interval and real time prediction. The proposed method, which was based on historical or present, known or indefinite information, was verified by the vibration prediction of induced draft fan of a boiler of the Yantai Power Station in China, and the results show that the proposed method based on grey system theory is simple and provides a high accuracy in prediction. So, it is very useful and significant to the controlling and controllable management in safety production. (authors)

  5. Fault detection and maintenance countermeasures of coal mine mechanical and electrical equipment%煤矿机电设备故障检测及维修对策

    Institute of Scientific and Technical Information of China (English)

    殷会海; 张震; 解加站

    2015-01-01

    煤炭企业的生产及经济效益越来越强烈地依赖于机电设备,这对煤矿机电设备的性能及维修管理提出了更高的要求。该文通过对煤矿机电设备故障检测的阐述,列举了煤矿机电设备主要的维修对策。%The production and economic benefit of coal enterprise is more and more strongly dependent on the mechanical and electrical equipment, which puts forward higher requirements for the performance and maintenance management of the coal mine mechanical and electrical equipment, by the elaboration to the coal mine mechanical and electrical equipment fault detection, this paper has enumerated the coal mine mechanical and electrical equipment main maintenance countermeasure.

  6. 基于RCM的设备维修管理平台研究与开发%Research and Design of Equipment Maintenance Management Platform Based on RCM

    Institute of Scientific and Technical Information of China (English)

    徐丹; 吴俊

    2011-01-01

    以可靠性为中心的维修(Reliability-centered Maintenance,RCM)在设备维修方面有着重要意义.预防性维修是RCM的重要内容.该文在几种优化的预防性维修策略基础上,重点研究了周期预防性维修.根据经济性的原则,得出了装备最佳保养周期的计算方法,并用MATLAB仿真进行了验证.利用C#和MATLAB联合编程,设计出具有实用价值的设备可靠性维修管理平台.%It is significant for the research of reliability-centered maintenance(RCM) of communication equipment Preventive maintenance is the important content of RCM. Several optimization of the preventive maintenance strategy is discussed, especially the cycle preventive maintenance. According to the principle of economy, the best maintenance cycle is given and verified by MATLAB simulation. Equipment maintenance management platform is designed with C# and MATLAB for practice.

  7. How to Solve Problem of Seal for Aircraft Structure Maintenance%飞机结构密封与失效修理

    Institute of Scientific and Technical Information of China (English)

    王哲

    2014-01-01

    为提高飞机增压舱的密封能力,给出了飞机结构密封失效的修理程序、方法、试验验证、典型结构密封的措施等,以求达到增压舱正常加压和减缓机体腐蚀发生,保证飞机在寿命期内安全飞行。%In order to enhance the sealing capacity of the pressure cabin, a set of proposals regarding the failure of the sealing in the aircraft structure is presented, including maintenance procedures, ways and means, tests, sealing options of typical structures, etc. By doing this, the normal pressurization of the pressure cabin can be ob-tained and the structure eroding can be delayed to ensure the flying security during the aircraft flight life.

  8. [Airway equipment and its maintenance for a non difficult adult airway management (endotracheal intubation and its alternative: face mask, laryngeal mask airway, laryngeal tube)].

    Science.gov (United States)

    Francon, D; Estèbe, J P; Ecoffey, C

    2003-08-01

    The airway equipment for a non difficult adult airway management are described: endotracheal tubes with a specific discussion on how to inflate the balloon, laryngoscopes and blades, stylets and intubation guides, oral airways, face masks, laryngeal mask airways and laryngeal tubes. Cleaning and disinfections with the maintenance are also discussed for each type of airway management. PMID:12943860

  9. Remote system of data acquisition and equipment maintenance with communication door Series; Sistema remoto de aquisicao de dados e manutencao de equipamentos com portas de comunicacao Serie

    Energy Technology Data Exchange (ETDEWEB)

    Marques, Ailton; Cabrera, Fernando [TRANSIERRA S.A., Santa Cruz (Bolivia)

    2005-07-01

    The present work has for objective to present the Remote System of Data Acquisition and Equipment Maintenance with Communication door Series - GASYRG. The solution is based on a converter of protocol (Serial -Ethernet) and a panel that the function of commutator (switch) managed by control system assumes (SCADA). (author)

  10. Practical Maintenance of Digital Systems. Guidance to Maximize the Benefits of Digital Technology for the Maintenance of Digital Systems and Plant Equipment

    International Nuclear Information System (INIS)

    This report presents detailed guidance for the maintenance and testing of modern digital systems. The guidance provides practical means for plants to take advantage of the increased diagnostic and self-test capabilities of these systems. It helps plants avoid mistakes in design and installation that could lead to increased maintenance burden and decreased system reliability and availability

  11. Practical Maintenance of Digital Systems: Guidance to Maximize the Benefits of Digital Technology for the Maintenance of Digital Systems and Plant Equipment

    Energy Technology Data Exchange (ETDEWEB)

    Hill, D; Scarola, K

    2004-10-30

    This report presents detailed guidance for the maintenance and testing of modern digital systems. The guidance provides practical means for plants to take advantage of the increased diagnostic and self-test capabilities of these systems. It helps plants avoid mistakes in design and installation that could lead to increased maintenance burden and decreased system reliability and availability.

  12. Optimization model and algorithm for maintenance scheduling of power supply equipments%供电设备检修计划优化模型和算法

    Institute of Scientific and Technical Information of China (English)

    林灵兵; 刘宪林; 韩源

    2012-01-01

    研究了供电设备检修计划优化模型和算法.模型以供电售电损失最小为优化目标,售电损失计算中引入供电回路电价,体现电力市场环境下差别化供电对检修优化结果的影响.在检修约束方面,采用检修资源占用量表示不同设备检修对资源占用的差异,使检修资源约束描述符合现场实际;新增节假日约束,可避免或减少检修占用工人正常休息日.采用改进的遗传算法进行供电设备检修计划优化,以保证优化质量.算例结果表明了模型和算法的有效性.%The optimization model and algorithm for the maintenance scheduling of power supply equipments are studied. The optimization model takes the minimal sale loss as its objective. The power supply circuit price is introduced in the calculation of electricity sale loss to show the influence of different power supply modes in power market environment on the maintenance optimization results. The maintenance resource occupation is adopted in the terms of maintenance constraints to show the difference of resource occupation by different equipments in maintenance, making maintenance resource constraint accord with field practice. The holiday constraint is set to avoid or reduce the work in rest days. The improved genetic algorithm is applied in the equipment maintenance optimization to ensure its high quality. Case study shows the effectiveness of the introduced model and algorithm.

  13. 14 CFR 121.380a - Transfer of maintenance -records.

    Science.gov (United States)

    2010-01-01

    ... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Maintenance, Preventive Maintenance, and Alterations... aircraft shall transfer to the purchaser, at the time of sale, the following records of that aircraft,...

  14. Equipment Parameters Application Solution Based on the Equipment Centralized Monitoring System and the Equipment Operation and Maintenance Platform%基于设备集中监控系统和设备运维平台的设备参数应用解决方案

    Institute of Scientific and Technical Information of China (English)

    罗科坚

    2014-01-01

    ATC equipment parameters have a great significance to equipment normal operation for the reason that ATC equipment pa-rameters reflect the equipment status. Recording relevant parameters of the daily equipment operation status is an important work of the e-quipment maintenance personnel. Currently, there are many problems such as the high maintenance costs of equipment parameters and low efficiency of manual records, even some missing, mistaken fill records or inevitably appearing non-standard records. In order to solve these problems, this paper presents an equipment parameters application solution based on the equipment centralized monitoring system and the equipment operation and maintenance platform, considering the Central South ATC equipment centralized monitoring system and equipment operation and maintenance platform for the analysis and processing of the equipment parameters, providing a more intuitive graphical showing way for the maintenance personnel, and providing a more intuitive and effective analytical tools. This equipment pa-rameters application solution can help to improve the reliability and accuracy of maintenance of equipment parameters, and reduce costs of equipment operation and maintenance.%空管设备参数反映设备的运行状况,对设备的正常运行具有重要意义。记录设备日常运行的相关参数是设备维护人员的重要工作内容,设备参数的维护成本高,人工记录效率低,漏填、误填或记录不规范的情况不可避免出现等,为了解决这些问题,本文提出一种基于设备集中监控系统和设备运行维护平台的设备参数应用解决方案,综合考虑中南空管设备集中监控系统和设备运行维护平台,对设备参数进行分析处理,以更直观的图形方式展现给使用人员,提供直观有效的分析手段,有利于提高设备参数维护的可靠性和准确性、降低设备运维成本。

  15. 某新型飞机维修模拟训练系统%Maintenance Simulation System of a New Type Aircraft

    Institute of Scientific and Technical Information of China (English)

    张伟; 库丽媛

    2011-01-01

    介绍了某新型飞机维修模拟训练系统的设计思路以及系统组成和特点,并结合系统的实现讨论了模拟仿真技术应用于装备维修的现实意义.实践证明,应用该系统开展飞机维修模拟训练解决了部队由于维修保障训练设备缺乏,机务人员难以进行全专业综合保障维修训练的难题,大大缩短了新机维修保障训练周期,节约了大量的装备维修保障经费.%The design concept of a new type aircraft maintenance simulation system is introduced The components, features and value of the simulation system are also described Practice shows that application of the simulation system can meet the requirements of aircraft maintenance training, shorten training cycle and save training funds.

  16. 航空装备预防性维修工作确定与优化%Study on Determination and Optimization of the Aviation Equipment Preventive Maintenance

    Institute of Scientific and Technical Information of China (English)

    段振华; 郭建胜

    2011-01-01

    Traditionally, according to the maintenance theory the preventive maintenance operation is based on the RCMA (Reliability-Centered Maintenance Analysis). For perfecting the maintenance, it presents a new method based on maintenance and failure information, analyzes the character of aviation equipment maintenance engineering and builds the effect model of maintenance-failure, we gain the main maintenance which inducing the failure. Through computing the function of the preventive maintenance,the biggest is carried out. A new optimization algorithm is designed. The research is of directive significance to planning the reasonable and timely preventive maintenance.%现代维修理论制定预防性维修工作的方法是以可靠性为中心的维修分析(RCMA),为进一步完善预防性维修工作,提出基于使用维修和故障信息基础上的新的分析方法,分析了航空装备维修工程的特点,建立维修-故障作用力模型,结合主成分分析法,得出顶防故障的主要维修工作.通过计算预防性维修工作的功能,优先执行功能最大的预防性维修工作.设计了一种新的预防性维修工作优化算法,为合理、适时安排不同的预防性维修工作提供依据.

  17. 基于PLC的飞机防滑刹车地面检测装置%Ground-examined Equipment of Aircraft Anti-Skid Braking Based on PLC

    Institute of Scientific and Technical Information of China (English)

    丁晓力; 蒙春辉; 徐忠; 王远顺

    2013-01-01

    本文介绍了PLC和HMI在飞机防滑刹车系统地面检测装置的应用,通过PLC与检测装置硬件电路的巧妙结合,为主机厂检测防滑刹车系统及其附件提供了一个平台,确保系统附件在装机前的工作状态正常,同时也适用于外场即时检测.%The application of PLC and HMI on the ground-examined equipment of aircraft anti-skid braking was introduce.By means of skillfully combining the PLC to hardware-circuit in the equipment-examined, a flat roof is provided that examines the system of aircraft anti-skid braking and accessoriness for the main factories.The system accessoriness are insured up to snuff on the work. This ground-examined equipment of handy-carrying is the same with examining offhandedly on the air-depot.

  18. 医院设备维修信息系统的开发%Development of Hospital Equipment Maintenance Information System

    Institute of Scientific and Technical Information of China (English)

    周之昕

    2015-01-01

    医院设备维修信息系统对提高医疗质量及效率都起着重要的作用。通过对医院设备维修需求分析,制定了总体功能架构。根据与设备维修流程有关的输入输出数据、表单、表格分析,找出实体-属性联系,做出E-R图并生成关系数据库表。软件开发应符合维修工作实际流程需要,用户界面友好,操作灵活,该软件通过统计分析能对故障产生的原因做出分析。%Hospital equipment maintenance information system plays an important role in improving medical treatment quality and efficiency. By requirement analysis of hospital equipment maintenance, the system function diagram is drawed. According to analysis of input and output data, tables and reports in connection with equipment maintenance process, relationships between entity and attribute is found out, and E-R diagram is drawed and relational database table is established. Software development should meet actual process requirement of maintenance and have a friendly user interface and flexible operation. The software can analyze failure cause by statistical analysis.

  19. Study on the Applications of Corrosion Inhibitor in Military Aircraft Maintenance%缓蚀剂在军用飞机维护中的应用研究

    Institute of Scientific and Technical Information of China (English)

    孙祚东; 李云仲; 韦利军

    2014-01-01

    Objective To study the validity of the hard film water-displacing corrosion inhibitor which is used in the joint sections of military aircraft in marine environment. Methods The performance of corrosion inhibitor was evaluated through functional penetration test and environment spectrum accelerated corrosion contrast test, and the practical applica-tion effect was verified by the lead probation on typical structure sections of a certain aircraft. Results The penetration rate of the corrosion inhibitor was 85%. The applications of corrosion inhibitor in the military aircraft internal structures could effectively retard the development of corrosion,and postpone the occurrence time of corrosion. Conclusion The applications of corrosion inhibitor in the military aircraft maintenance as an effective means to prevent corrosion is valuable for populari-zation and application.%目的:验证海洋环境下硬膜水置换型缓蚀剂应用于军用飞机连接部位的有效性。方法采用功能渗透性试验、环境谱加速腐蚀对比试验对缓蚀剂性能进行评价,并通过在某型飞机典型结构部位的领先试用验证缓蚀剂的实际应用效果。结果缓蚀剂渗透率可达到85%。应用于军用飞机内部,对腐蚀的发展有明显的抑制作用,可显著延长腐蚀发生的时间。结论应用缓蚀剂作为腐蚀预防的有效手段,可在军用飞机维护中推广应用。

  20. Lean Equipment Maintenance Management and Real izing Method%装备维修精细化管理与实现路径

    Institute of Scientific and Technical Information of China (English)

    张雪胭; 徐鹏飞; 杨超

    2016-01-01

    从维修任务预计、维修资源掌控、维修活动实施等方面,分析了装备维修精细化管理的核心目标。将理论方法、技术手段、基础条件有机结合,构建起以组织结构精细化、运行流程精细化、制度规范精细化为主要内容的精细化管理体系框架。从思维模式、发展模式、考评模式等3个方面,提出了装备维修精细化管理的实现路径。%This paper analyzes the key target of the lean equipment maintenance management from several aspects like prediction of maintenance tasks,grasp of maintenance resources and imple-mentation of maintenance activities etc.By combining the theoretical methods and technical approa-ches with basic conditions,the paper constructs a lean management system framework supported by lean management of organizational structure,operational flow and institutional standards and propo-ses methods to realize the lean management of equipment maintenance which includes the thinking mode,development mode and evaluation mode etc.

  1. Revolution in Mode of Medical Equipment Maintenance%卫生装备维修保障模式改革探讨

    Institute of Scientific and Technical Information of China (English)

    汤献国

    2012-01-01

    The status of military medical equipment maintenance is described. The role and the function of the equipment manufacturers, the professional service organizations and the using departments are determined through analysing positive and negative factors. An new maintenance mode is proposed including fully playing the role of equipment manufacturers, changing the functions of the professional service organizations, enhancing the using departments' self-protection abilities, and achieving the joint collaboration of multi- level maintenance. Meanwhile, some constructive advice is provided to solve the problem of how to protect the equipment and how to maintenance in time. [Chinese Medical Equipment Journal, 2011,33(3): 92-93]%阐述了部队卫生装备维修保障的现状,通过有利和不利因素分析,确定装备生产厂家、专业维修机构和使用单位在卫生装备维修保障工作中的地位与作用,提出了充分发挥装备生产厂家作用、转变专业维修机构职能、增强使用单位自我保障能力、实现军地联合多层次分工协作的维修保障新模式,为解决卫生装备维修保障不及时和装备完好率下降的问题提供了建设性意见.

  2. The Study on Principles and Methods for Maintenance Sampling Inspection of Civil Aircraft Structures%民机结构维修大纲抽样检查原则与方法研究

    Institute of Scientific and Technical Information of China (English)

    杨海滨; 左洪福; 朱磊

    2011-01-01

    To make sure the continuous airworthiness, the key measure is the sampling in maintenance of civil aircraft structures. The objective of structures sampling is not only to figure out the damage grade in the aircrafts who are manufactured at the same time, but also to develop a better maintenance plan. Aircraft structures maintenance sampling is non-random sampling, in accordance with features, we study the principle of structural maintenance sampling in this paper. Combined with sampling experience of the Airbus A320, we propose the guidelines and the concrete steps in structure maintenance sampling for China's own large aircraft.%民机结构维修中的抽样检查是保证飞机持续适航的关键措施。结构抽样检查是为了掌握同一时期下线飞机的结构损伤情况,以便更好地修订维修计划。针对民机结构维修的抽样是非随机抽样的特点,本文研究了结构维修抽样的原则,结合空客A320抽样经验,给出了我国自主设计大飞机结构维修抽样准则和抽样的具体步骤。

  3. Factory Equipment Maintenance and Debugging PLC Programming Ideas to Build%工厂PLC设备维修与调试编程思路构建

    Institute of Scientific and Technical Information of China (English)

    张自强

    2014-01-01

    In-depth analysis of PLC programmable controller with the function and role, explore maintenance and debugging PLC programming ideas factory equipment, to provide some references for the exclusion of the plant PLC equipment failure.%深入分析PLC可编程控制器具备的功能和作用,探究工厂中PLC设备的维修和调试编程思路,为工厂PLC设备故障的排除提供一些参考。

  4. 医疗仪器设备维修管理方法的研究%Maintenance and Management Method of Medical Equipment

    Institute of Scientific and Technical Information of China (English)

    刘海涛; 王思杰

    2012-01-01

    The maintenance and management of medical instrument and equipment is a crucial work in hospital, and it is directly related to the clinical effect and the hospital's medical reputation, also affects the hospital's economic benefits. The maintenance and management methods for medical instrument and equipment are researched in this article.%对医疗仪器设备的维修和管理是医院一项至关重要的工作,它会直接关系到临床医疗效果乃至医院的声誉,也会影响到医院的运行的经济效益.本文就医疗仪器设备维修管理方法进行研究.

  5. Application of BFDA in Maintenance Task Scheduling of Ordnance Equipments%BFOA在军械装备维修任务调度中的应用

    Institute of Scientific and Technical Information of China (English)

    姚双印; 韩庆田

    2011-01-01

    分析了军械装备维修任务调度问题的特点,给出了细菌觅食优化算法(Bacteria Foraging Optimization Algorithm)的操作流程,针对军械装备维修任务调度问题建立了数学建模,设计了编码策略并应用Matlab工具软件进行了仿真计算。%Firstly, the characters of maintenance task scheduling of ordnance equipment were analyzed. Then the BFOA programming flows were given out. According to the problem of maintenance task scheduling of ordnance equipment, the mathematic model was established, the coding strategy was designed, and the simulation calculation was carried out using Matlab

  6. The drive for Aircraft Energy Efficiency

    Science.gov (United States)

    James, R. L., Jr.; Maddalon, D. V.

    1984-01-01

    NASA's Aircraft Energy Efficiency (ACEE) program, which began in 1976, has mounted a development effort in four major transport aircraft technology fields: laminar flow systems, advanced aerodynamics, flight controls, and composite structures. ACEE has explored two basic methods for achieving drag-reducing boundary layer laminarization: the use of suction through the wing structure (via slots or perforations) to remove boundary layer turbulence, and the encouragement of natural laminar flow maintenance through refined design practices. Wind tunnel tests have been conducted for wide bodied aircraft equipped with high aspect ratio supercritical wings and winglets. Maneuver load control and pitch-active stability augmentation control systems reduce fuel consumption by reducing the drag associated with high aircraft stability margins. Composite structures yield lighter airframes that in turn call for smaller wing and empennage areas, reducing induced drag for a given payload. In combination, all four areas of development are expected to yield a fuel consumption reduction of 40 percent.

  7. 医疗设备维修管理系统的研发%The development of the maintenance management system of the medical equipment

    Institute of Scientific and Technical Information of China (English)

    罗长江

    2015-01-01

    随着信息化时代进程持续加快,各项网络技术发展迅速,诸多信息资源之间的交互变得更为便捷。为了适应数字化时代的发展且提升工作效率,医院信息化建设务必紧跟时代潮流。医疗设备维修管理系统是医院重要的组成部分,采用VB及SQL技术研制出医院医疗设备维修管理系统极为关键,该系统涵盖了医疗设备各项基本信息录入,具备设备维修记录管理和设备进行价值分析及状态分析等方面功能。医疗设备维修管理是医院设备科工作的重心,更是院领导购置新设备决策的主要依据。据有关调查数据分析,国内诸多医院医疗设备维护管理均是各有特色,但对于维修记录及设备分析等方面工作的方式稍有欠缺,同时管理上也出现漏洞,制约着医院医疗仪器统计及分析准确性。本文分析了医院医疗设备维修管理,并提出实用性系统研发策略。%With continuously speeding up of the process of information era, the network technology development rapidly, the interaction between the various information resources has become more convenient.In order to adapt to the development of the digital age and improve work efficiency, the hospital information construction must keep up with the trend of the times.Medical equipment maintenance management system is an important part for the hospital, using VB and SQL technology to develop the hospital medical equipment maintenance management system is key, this system covers all basic information input, with the function of equipment maintenance records management and equipment’s value analysis and status analysis, etc.Medical equipment maintenance management is the center of gravity of the equipment section of the hospital work, and also the main basis for the leaders to purchase new equipment.According to the survey data analysis, the domestic’s hospital medical equipment maintenance and management are

  8. Kajian Total Productive Maintenance Pada Pembangkit Listrik Tenaga Gas Dan Uap Blok I St 1.0 Sicanang Belawan Dengan Metode Overall Equipment Effectiveness

    OpenAIRE

    Sitanggang, Hasber F. H.

    2015-01-01

    PT. PLN (Persero) is a company engaged in the producer of electrical energy which is inseparable from the effectiveness of machinery and equipment problems caused by the six big losses. The impact of these problems will interfere with the machine work in accordance with the results that should be achieved. Hence the need for special attention regarding the maintenance and care of the machine with the purpose of the machine is capable of committing a longer production process and generate a p...

  9. 一种装备维修器材保障准确性计算方法研究%A Calculation Method of Accuracy for Equipment Maintenance MaterialSupport

    Institute of Scientific and Technical Information of China (English)

    高崎; 高铁路; 张桦

    2012-01-01

    装备维修器材保障准确性是影响装备维修保障工作的重要因素之一.从装备维修器材保障过程中所需满足的数量和品种入手,给出了一种装备维修器材保障准确性计算方法,最后提出了提高装备维修器材保障准确性的对策与措施.%The accuracy of eqipment maintenance material support is one of important factors which impact on equipment maintenance support work. This paper starts with the quantities and varieties what the equipment maintenance material support needs, and gives a calculation method of accuracy for equipment maintenance material suppor, put forward some countermeasures and measures for improving the accuracy of equipment maintenance material support in the end.

  10. Research on communication equipment maintenance strategy based on simplified RCM%基于简化RCM的通信设备检修策略研究

    Institute of Scientific and Technical Information of China (English)

    张维杰

    2015-01-01

    选择科学合理的检修策略对于提高通信设备的安全性和可靠性是非常重要的。首先介绍了RCM理论及其分析过程,探讨了RCM理论应用于通信系统的可行性,提出了一个适用于通信设备检修的简化的RCM理论模型,并以卫星通信设备检修为例,详细介绍了该模型应用于通信系统的具体流程,即收集设备相关情况、确定重要设备、进行故障模式分析和影响分析、确定预防性维修工作类型,形成检修策略。实践证明,这个简化的RCM理论模型在通信设备检修中是适用的,并且取得了较好的经济效益。%It is very important to choose scientific and rational maintenance strategy to improve safety and reliability of com⁃munication equipments. RCM theory and its analysis process are introduced. The feasibility that RCM theory is applied to com⁃munication domain is researched. A simplified RCM theory model appropriate for communication equipment maintenance is pro⁃posed. Taking the maintenance of a satellite communication equipment as an example,the process of the model applied to com⁃munication system is introduced in detail,which includes collection of device related case,determination of important equip⁃ments,analysis of failure mode and effect,determination of preventive maintenance work type,formation of maintenance strate⁃gy. Practice application proves that the simplified theory model is suitable for communication equipment maintenance,and has got a better economic benefit.

  11. Prismatic sealed nickel-cadmium batteries utilizing fiber structured electrodes. II - Applications as a maintenance free aircraft battery

    Science.gov (United States)

    Anderman, Menahem; Benczur-Urmossy, Gabor; Haschka, Friedrich

    Test data on prismatic sealed Ni-Cd batteries utilizing fiber structured electrodes (sealed FNC) is discussed. It is shown that, under a voltage limited charging scheme, the charge acceptance of the sealed FNC battery is far superior to that of the standard vented aircraft Ni-Cd batteries. This results in the sealed FNC battery maintaining its capacity over several thousand cycles without any need for electrical conditioning or water topping. APU start data demonstrate superior power capabilities over existing technologies. Performance at low temperature is presented. Abuse test results reveal a safe fail mechanism even under severe electrical abuse.

  12. Tentative study on maintenance and management of large medical equipment%大型医疗设备维修管理的思考和探讨

    Institute of Scientific and Technical Information of China (English)

    陈嬛; 刘珍才; 汪兴旺

    2012-01-01

    Objective: To strengthen management of medical equipment to annotate the philosophy of producing benefit by management, and to make maintenance cost under control. Methods: We ensured that the device to be well allocated with maintenance force by self, seek for technical support from third-party; strengthen preventive maintenance of equipment to decrease breakdown ratio of equipment; enhance contract restriction on service after sales; industrial guild, goods price inspecting authorities should conduct monitoring on maintenance price. Results: Through discussion on management of large devices, we found feasible methodsfor its maintenance to promote its comprehensive efficacy. Conclusion: The discussion can be performed to control maintenance price and decrease maintenance cost to promote hospital's social and economic benefits.%目的:医院加强对大型医疗设备的维修管理,体现管理产生效益的理念,有效控制口益增长的维修费用。方法:配备好医院自身维修力量,加强对设备使用人员日常维护保养的教育培训。寻找第三方售后技术支持,加强设备预防性的维护保养,降低故障率;加强对厂家售后服务的合同约束。行业协会、物价部门应对设备维修价格实施监测。结果:通过对大型医疗设备维修管理的探讨,找出切实可行的维修管理办法,提高医疗仪器设备的综合效益。结论:控制医院大型医疗设备的维修费用,降低维修成本,增加医院的经济效益和社会效益。

  13. Maintenance methods

    International Nuclear Information System (INIS)

    The maintenance method applied at the Hague is summarized. The method was developed in order to solve problems relating to: the different specialist fields, the need for homogeneity in the maintenance work, the equipment diversity, the increase of the materials used at the Hague's new facilities. The aim of the method is to create a knowhow formalism, to facilitate maintenance, to ensure the running of the operations and to improve the estimation of the maintenance cost. One of the method's difficulties is the demonstration of the profitability of the maintenance operations

  14. 区间信号设备维修轨道车使用方式探讨%Usage of Railcar in Section Signal Equipment Maintenance

    Institute of Scientific and Technical Information of China (English)

    林文颖

    2011-01-01

    阐述温福客专铁路现行区间信号设备维修作业组织方式及所遇到的困难,通过比较说明使用轨道车进行区间信号设备检修作业的优越性;提出电务共用工务轨道车的3种方案并进行优劣性比较探讨。%This article discusses the maintenance mode of the section signal equipment in the Wenzhou-Fuzhou railway as well as the difficulties encountered recently.By comparing the two maintenance modes,it was shown that the maintenance mode of section signal equipment by using rail car has many advantages.The author proposed three solutions about sharing rail cars between the department of Permanent Wayside and the department of Communication Signal and compared the advantages and disadvantages of the three solutions.

  15. 基于SAR的装备维修手册生成技术%Research on Generation Technology of Equipment Maintenance Handbook Based on Supportability Analysis Record

    Institute of Scientific and Technical Information of China (English)

    黄文江; 胡起伟; 朱宁; 王业

    2014-01-01

    保障性分析记录(Supportability Analysis Record,SAR)是维修手册编写的基础数据来源,针对传统纸质维修手册存在的缺陷以及维修手册编写中SAR的利用率不高等问题,提出了以保障性分析记录建立底层数据环境直接生成维修手册的设计思想,构建了基于SAR的装备维修手册生成技术框架,突破了基于XML的SAR表示技术。该框架充分利用SAR数据生成维修手册,提高了分析数据的可重用性,避免了重复分析,降低了工作量,提高了维修手册生成效率。%Supportability analysis record is the basal data source of the maintenance handbook. For the limitation of traditional papery maintenance handbook and the low utilization of supportability analysis record when writing the maintenance handbook,the underlying data environment is established based on supportability analysis record,then the maintenance handbook created directly. In this paper, a technical framework of equipment maintenance handbook is built based on supportability analysis record,in which the supportability analysis record is fully utilized,and the technology of SAR expressing based on XML is broken through. So the reusability of the data is improved,repeated analysis is avoided,the workload is decreased,the efficiency of creating maintenance handbook is improved.

  16. Preventative Maintenance.

    Science.gov (United States)

    Migliorino, James

    Boards of education must be convinced that spending money up front for preventive maintenance will, in the long run, save districts' tax dollars. A good program of preventive maintenance can minimize disruption of service; reduce repair costs, energy consumption, and overtime; improve labor productivity and system equipment reliability; handle…

  17. Software Maintenance.

    Science.gov (United States)

    Cannon, Glenn; Jobe, Holly

    Proper cleaning and storage of audiovisual aids is outlined in this brief guide. Materials and equipment needed for first line maintenance are listed, as well as maintenance procedures for records, audio and video tape, film, filmstrips, slides, realia, models, prints, graphics, maps, and overhead transparencies. A 15-item quiz on software…

  18. 某机载电子设备总体结构设计%Structure Design of Airborne Electronic Equipment for a Certain Aircraft

    Institute of Scientific and Technical Information of China (English)

    南雁; 郭建平; 张娅妮

    2011-01-01

    从结构设计角度出发,根据航空平台的工作模式和环境空间要求,针对某机载电子设备的标准化设计、热设计、电磁兼容性设计、防冲击、振动、"三防"设计等方面进行了论述.结合型号设计的工程经验,以航空电子设备结构设计的特点和原则为重点,对机载电子设备的结构设计进行了阐述,通过合理的布局设计和仿真计算来实现结构设计要求.介绍机载电子设备结构设计的经验,可供同行参考.%From the point of structure design,according to work and environment requisition for the aircraft flat ,described delailed such as the standardization, heat, EMC,impact and vibration prevention,three proofing designing for a certain aircraft. Focus on the characteristic and principle for aeronauticat electronic equipment,expatiate the structure design from Many- sided ,and guidance thc structure design by logical position and simulation with engineering experience. Pool the experience for structure design and offer the experience for craft brother discuss.

  19. The Discussion about Installation, Maintenance and Management of Electrical and Mechanical Equipment%机电设备的安装、维修与管理探讨

    Institute of Scientific and Technical Information of China (English)

    张绍华

    2015-01-01

    With the rapid development of scientific technology,information and automation technologies are becoming increasingly important.Meanwhile,mechanical and electrical equipment have been widely applied in all walks of life due to the reasonthat mechanical and electrical equipment can reduce human cost significantly.In addition,the operation of mechanical and electrical equipment connects closely with every links of production process,exerting great influence on producing operation. Therefore,enterprises should pay high attention to installation,maintenance and management of mechanical and electrical equipment,and put forward practical strategies according to main problems remain in current mechanical and electrical equipment, in case the occurrence of equipment breakdown and safety accident due to bad equipment operation.%随着科学技术的不断进步,信息和自动化技术也变得日益重要,与此同时机电设备已经在生产生活的各个领域得到了普遍的应用,这在某种程度上是由于机电设备可以显著减少人力成本.此外,机电设备的运行与生产的各个环节紧密相连,对生产运行状况产生重大影响.因此,企业必须高度重视机电设备的安装、维修与管理工作,针对当前机电设备主要存在的问题提出切实可行的对策,以免设备不良运行诱发故障甚至安全事故.

  20. 9 CFR 95.26 - Railroad cars, trucks, boats, aircraft and other means of conveyance, equipment or containers...

    Science.gov (United States)

    2010-01-01

    ... percent available chlorine) in the proportion of one pound to three gallons of water; or any one of the... and other means of conveyance, equipment or containers, yards, and premises; cleaning and disinfection... SANITARY CONTROL OF ANIMAL BYPRODUCTS (EXCEPT CASINGS), AND HAY AND STRAW, OFFERED FOR ENTRY INTO...

  1. Studi Penerapan Total Productive Maintenance Menggunakan Metode Overall Equipment Effectiveness (OEE) dan Six Big Losses pada Generator Diesel Type 700 di PT. PP London Sumatera Indonesia Tbk Bagerpang POM

    OpenAIRE

    Manurung, Evin Dunan

    2016-01-01

    Total Productive maintennace is one of solution to special attention on the care and maintenance of the Diesel Generator with goal machine can perform longer production process and generate power source properly . Overall Equipment Effectiveness (OEE) is one of the tools to improve the effectiveness of the utilization rate Diese Generator; and equipment. OEE is as an application program of Total Productive Maintenance (TPM). This study measures the value of the production line OEE PT. PP LOND...

  2. Research on Equipment Management System Based on the Rich Client Technology and Preventive Maintenance%基于富客户端技术和预防性维护的设备管理系统的研究

    Institute of Scientific and Technical Information of China (English)

    潘隆涛; 涂海宁; 顾嘉

    2012-01-01

    In order to improve a production equipment production efficiency and management level of Material molding equipment in someone enterprise, combined with the classical theory of equipment preventive maintenance, and aiming at the enterprise related equipment information management, this paper puts forward the equipment maintenance plan about the equipment preventive maintenance strategy, and sets up a corresponding preventive maintenance model, developed equipment information management system based on the rich client Silverlight technology; In the basis of collecting enterprise equipment information and the data of the fault, system having the aid of the equipment preventive maintenance research results and RIA data interaction technology promotes equipment maintenance level and user information interaction experience.%为提高某企业型材生产设备的生产效率和管理水平,结合经典的设备预防性维护理论,针对目前该企业相关设备的信息管理问题,提出设备计划维修下的设备预防性维护策略,并建立相应的预防性维护模型;基于Silverlight富客户端技术研究并实现了的设备信息管理系统;系统在收集企业设备信息、故障数据的基础上,借助设备预防性维护研究成果和RIA数据交互技术提升设备运维水平和用户信息交互体验.

  3. Development of Maintenance Demonstration System Based on General Aviation Aircraft of DA40%基于通航飞机DA40维修演示系统的开发

    Institute of Scientific and Technical Information of China (English)

    樊军; 吴月伟

    2012-01-01

    提高通用航空器维修人员的业务水平,是通用航空事业快速发展的基本保障.为满足通用航空维修运行的需要,研发针对通用飞机的维修演示系统平台,可有效提高维修人员的学习效率,且具有广阔的社会效益和经济效益.系统基于DA40飞机维修手册和维修培训教学大纲开发,能较好地测试演示系统各项功能的完整性,具有广泛的示范意义.%It is the guarantee to improve the ability of the maintenance men in general aircraft to maintain the rapid development of the general aviation. Research maintenance demonstration platform for general a-viation that meets the needs of maintenance operation of general aircraft which improves the learning efficiency of the aircrew and also has great social and economic benefits. The system is based on aircraft maintenance manual and training syllabus of DA40 and can test all the function of the de- monstration platform perfectly. It has a wide range of demonstration.

  4. 设备维护改进实施决策模型%Implementation decision-making model on equipment maintenance improvement

    Institute of Scientific and Technical Information of China (English)

    陈洪根

    2011-01-01

    As to the problem of quantitative methods for equipment maintenance improvement implementation decision-making, a house of maintenance improving (HOMI) model was built based on quality function development (QFD). On this basis, a dependent function was established, which took the autocorrelation of decision-making variables existed between the improvement of maintenance demand project and the improvement of technical characteristic in each maintenance implementation into account. Using the multi-objective programming method, a implementation decision-making model of maintenance improvement demand project was founded. An illustrative example shows that the model has practicability and effectiveness.%针对设备维护改进实施的量化决策问题,基于质量机能展开(QFD)构建了以维护改进需求项目和维护改进实施手段、技术及其相互关系为内容的维护改进屋(HOMI),并给出了考虑维护改进决策变量自相关存在的维护改进需求项目的改善率与各个维护改进实施技术特征改善率之间的关联函数式,在此基础上利用多目标规划方法进一步建立了维护改进需求项目的实施决策模型.算例分析结果表明,该模型对于维护改进规划是可行、有效的.

  5. Joint Optimization of Condition-based Preventive Maintenance and Spare Parts Provisioning Policy for Equipment Maintenance%设备视情预防维修与备件订购策略的联合优化

    Institute of Scientific and Technical Information of China (English)

    张晓红; 曾建潮

    2015-01-01

    A jointly condition-based preventive maintenance and spare parts provisioning policy is discussed for equipment maintenance. Based on analysis of all possible transitions of the joint state of equipment and its spare parts inventory, the explicit expression of stationary joint probability density function is derived and its numerical solution is deduced. On the basis of the joint probability density function, the maintenance probabilities of the equipment with the influence of spare parts inventory and the ordering and holding probabilities of its spare parts are derived. Then the expected long-run cost rate model is formulated for the joint policy using the renewal process, taking into account the costs incurred for performing maintenance and managing the spare parts inventory. A numerical experiment is carried out to identify the optimal values for the parameters of the policy, including the inspection interval, the ordering threshold, and the preventive maintenance threshold. The experiment results verify that the derivation of the joint probability density function is correct and the established model is effective. The results of the sensitivity analysis show that a trade-off exists between the maintenance related costs and the inventory related costs, and joint optimization of preventive maintenance and spare parts provisioning policy can ensure a global optimal policy. A practical case is provided to verify the effectiveness of the proposed method.%研究设备的视情预防维修与备件订购策略的联合优化问题.在分析设备劣化与备件库存联合状态转换的基础上,给出了联合状态的稳态概率密度函数的显式表达式和数值求解方法.基于此联合概率密度函数,推导连续劣化的设备受备件库存状态影响的维修概率和备件的订购和持有概率,建立以设备的检测周期、备件订购阈值、预防维修阈值为决策变量,同时考虑维修和备件相关成本的长期平均费用率

  6. The Maintenance of Motor Vehicle Equipment%机动车辆设备的维护修理

    Institute of Scientific and Technical Information of China (English)

    李强

    2015-01-01

    Motor vehicle exposes different breakdowns in different stages.The principles of motor vehicle maintenance are:main prevention,forced maintenance,and timely repairing.In order to solve problems of motor vehicle effectively, reasons and types of breakdowns should be analyzed and measures should be taken to guarantee the normal operation of vehicles.%机动车辆在不同时期会出现不同的故障.机动车辆维护与修理原则是:预防为主、强制维护、及时修理.为了有效解决车辆的故障问题,需要有针对性地进行分析研究故障产生的原因和类型,并采取可行措施有效解决故障问题,保证车辆的正常行驶.

  7. 基于Prolog语言的装备维修决策专家系统设计与开发%The Design and Development for Equipment Maintenance Decision-Making Expert System Based on Prolog Language

    Institute of Scientific and Technical Information of China (English)

    王广彦; 胡起伟; 王亚彬

    2012-01-01

    The equipment maintenance decision-making expert system is designed and developed based on Prolog intelligent language. The characteristics of equipment maintenance experts are researched thoroughly from the sides of maintenance knowledge and inferential ability. The basic syntaxes and inferential formats of expert system based on Prolog are analyzed, as well as their applications in equipment maintenance. The element knowledge database, correlative knowledge database, and application knowledge database are designed and developed for equipment maintenance decision-making expert system. At last a equipment maintenance decision-making expert system is developed through combinatorial programming of Visual Prolog and VC++.%采用Prolog智能语言对装备维修决策专家系统进行了设计与开发。从维修知识和推理能力两方面研究了装备维修专家的基本特点;分析了基于Prolog的专家系统的基本语法、推理方式及其在装备维修中的应用方式;设计并开发了装备维修决策专家系统的元知识库、关联知识库和应用知识库;最后采用Visual Prolog和VC++混合编程方式开发了某装备维修决策专家系统。

  8. 基于作战效能评估的交叉眼干扰设备在飞机上的布局%Layout of Cross-eye Jamming Equipment on Aircraft Based on Combat Effectiveness Evaluation Methods

    Institute of Scientific and Technical Information of China (English)

    杨沛斌; 张娜

    2015-01-01

    According to the diversification of present electronic jamming equipment, taking the cross-eye jamming equipment as an example, analyzed the combat effectiveness of aircraft equipped with cross-eye jamming devices. It introduced the method of layout optimization of cross-eye jamming equipment on aircraft. These results provide technical reference for selection and layout of electronic jamming equipment on combat aircraft.%针对电子干扰设备多样化的现状,以交叉眼干扰设备为例,从作战效能评估的角度进行分析,提出了交叉眼干扰设备的机上布局方案及作战效能提升的要求,并对交叉眼干扰设备在飞机上的应用进行了优化,为作战飞机电子干扰设备机上选型及布局提供技术参考。

  9. 谈工程机械设备的维修%On Maintenance of Engineering Machinery and Equipment

    Institute of Scientific and Technical Information of China (English)

    罗增坤

    2013-01-01

    With the expanding of high speed railway market, mechanical equipment become the important productivity in the construction of high-speed rail. Doing a good job on mechanical equipment management to correctly analyze and solve all kinds of faults for mechanical in the process of operation has very important practical significance for improving the work efficiency, enhancing the market competitiveness of enterprises and improving the level of enterprise equipment management.%  机械设备随着高速铁路市场不断扩大,成为了高铁建设中重要的生产力,做好机械设备管理工作,正确分析和解决机械在运行过程中的各种故障,对提高工作效率,增强企业的市场竞争力,提高企业设备管理水平都有着十分重要的现实意义。

  10. 浅谈多媒体教室设备管理与维护%Brief Discussion on Management and Maintenance of Multimedia Classroom Equipment

    Institute of Scientific and Technical Information of China (English)

    赵施美

    2013-01-01

    随着多媒体技术在高校的普及,多媒体教室需求也急剧上升,由此多媒体教室设备的安全问题、多媒体教室的设备操作问题、多媒体教室的管理模式问题、多媒体设备故障处理问题等也应运而生。本文就多媒体教室设备的管理和维护中存在的问题展开分析并提出解决问题的方法。%With the popularity of multimedia technology in colleges and universities,multimedia classroom demand has also been rising sharply. As a result, problems such as multimedia classroom equipment security, mul-timedia classroom equipment operation, multimedia classroom management, and multimedia equipment trou-bleshooting also emerge. This paper analyses the problems in the management and maintenance and proposes solu-tions.

  11. The Importance and Development Procedure of Ground Support Equipment during the Aircraft Designing%地面支援设备在民机设计中的重要性及其相关研制程序

    Institute of Scientific and Technical Information of China (English)

    张宏

    2011-01-01

    地面支援设备是保证飞机具有良好的维修性和保持飞机固有可靠性、安全性所必须的重要手段,是确保飞机持续适航、正常使用、维护和维修不可缺少的组成部分。%Ground Support Equipment is important instrument for airplane with good maintenance, reliability and security. Ground Support Equipment is indispensability for airplane with continual airworthiness and normal flight, service, maintenance.

  12. Development of methodologies for optimization of surveillance testing and maintenance of safety related equipment at NPPs. Report of a research coordination meeting. Working material

    International Nuclear Information System (INIS)

    This report summarizes the results of the first meeting of the Coordinated Research Programme (CRP) on Development of Methodologies for Optimization of Surveillance Testing and Maintenance of Safety Related Equipment at NPPs, held at the Agency Headquarters in Vienna, from 16 to 20 December 1996. The purpose of this Research Coordination Meeting (RCM) was that all Chief Scientific Investigators of the groups participating in the CRP presented an outline of their proposed research projects. Additionally, the participants discussed the objective, scope, work plan and information channels of the CRP in detail. Based on these presentations and discussions, the entire project plan was updated, completed and included in this report. This report represents a common agreed project work plan for the CRP. Refs, figs, tabs

  13. Low velocity blunt impacts on composite aircraft structures

    OpenAIRE

    Whisler, Daniel A.

    2009-01-01

    As composites are increasingly used for primary structures in commercial aircrafts, it is necessary to understand damage initiation for composites subject to low velocity impacts from service conditions, maintenance, and other ground equipment mishaps. In particular, collisions with ground vehicles can present a wide area, blunt impact. Therefore, the effects of bluntness of an impactor are of interest as this is related to both the external visual detectability of an impact event, as well as...

  14. 美军装备维修训练特点、发展趋势及启示%Characteristics and Developing Trends of US Army's Equipment Maintenance Training and Its Enlightenments

    Institute of Scientific and Technical Information of China (English)

    赵坤; 张春润; 汪江; 师张卓

    2012-01-01

    The equipment maintenance training is an important part of the equipment support capability construction,and doing researches on US army's equipment maintenance training can make good sense. This paper makes an introduce on the organizing system of US army's equipment maintenance training, and studies its characteristics and developing trends, and also provides several suggestions for Chinese army's equipment maintenance training development.%装备维修训练是装备保障能力建设的重要内容,对美军装备维修训练进行研究对我军具有较大的借鉴意义。介绍了美军维修训练组织体制,对美军装备维修训练特点和发展趋势进行研究,并对我军装备维修训练未来发展提出建议。

  15. 计及风险损失的配电设备检修方式选择%Maintenance mode selection of power distribution equipment considering the loss of risk

    Institute of Scientific and Technical Information of China (English)

    霍明雷; 刘艳; 杨林

    2014-01-01

    针对目前在设备检修方式选择方面未将设备健康指数、检修成本和设备故障损失综合考虑的问题,提出了一种结合设备状态评价结果,计及检修成本和检修后设备风险损失的检修方式选择决策模型。定义设备风险损失为设备故障损失和设备故障概率的乘积,设备故障损失由设备资产损失和电网运行损失两部分组成,并给出了各部分的具体计算公式。分析了检修成本的组成和计算方法以及不同检修方式对设备故障率的影响。最后以检修成本和检修后设备风险损失之和最小为目标,用量化的方法对配网设备检修方式进行选择,并结合算例给出了某状态下两台变压器检修方式的选择过程,结果表明了所提模型的有效性。%As the fact that current equipment maintenance mode selection does not include device health index, maintenance costs and loss of equipment failure, an optimized model considering the above elements for distribution network equipment maintenance mode selection is proposed. The new model defines the loss of risk as the product of the loss and the probability due to equipment failure where the equipment failure loss is consist of equipment asset loss and power loss. The specified calculation formula of each part is given. The composition of maintenance costs, calculation methods and the effects that different maintenance modes have on the equipment failure rates are analyzed. Aiming at the minimum sum of maintenance costs and the risk of loss after repair, a quantified method is employed in selecting the maintenance mode. An example is shown to elaborate the selection procedure of two transformers maintenance modes in certain condition and well proves the effectiveness of the model.

  16. Flight control electronics reliability/maintenance study

    Science.gov (United States)

    Dade, W. W.; Edwards, R. H.; Katt, G. T.; Mcclellan, K. L.; Shomber, H. A.

    1977-01-01

    Collection and analysis of data are reported that concern the reliability and maintenance experience of flight control system electronics currently in use on passenger carrying jet aircraft. Two airlines B-747 airplane fleets were analyzed to assess the component reliability, system functional reliability, and achieved availability of the CAT II configuration flight control system. Also assessed were the costs generated by this system in the categories of spare equipment, schedule irregularity, and line and shop maintenance. The results indicate that although there is a marked difference in the geographic location and route pattern between the airlines studied, there is a close similarity in the reliability and the maintenance costs associated with the flight control electronics.

  17. 间接状态监测下基于维修费用及残余寿命的设备维修策略%Research of Equipment Maintenance Strategy Based on Maintenance Cost and Residual Life In Indirect Monitoring

    Institute of Scientific and Technical Information of China (English)

    陈友玲; 张立元; 刘文科; 王建华; 郭金龙

    2012-01-01

    针对不能直接诊断间接状态监测下设备劣化状态的问题,提出了制定费用最优的设备预防性维修策略方法.利用马尔可夫链表示设备的劣化状态,给出了设备可靠度函数,运用贝叶斯规则和马尔可夫模型进行设备状态概率分布研究,建立了间接状态下设备维修费用和设备残余寿命模型,分析了基于设备维修费用和设备残余寿命的设备维修策略.通过实例说明了间接状态监测下基于维修费用和残余寿命制定并实施最优维修决策标准的方法.%For the equipment deterioration condition can not be diagnosed directly in indirect monitoring, this paper proposed a method of equipment preventive maintenance strategy with minimum cost. By using Markov chain to express equipment deterioration condition, the equipment reliability function was pro- posed. Bayes rule and the hidden Markov model were used to research equipment condition probability dis- tribution . The equipment maintenance cost model and the equipment residual life model were established in indirect monitoring to carry equipment maintenance strategy analysis based on maintenance cost and re- sidual life. The implementation of the optimum maintenance decision criterion was illustrated based on ma- intenance cost and residual life in indirect monitoring.

  18. 14 CFR 43.9 - Content, form, and disposition of maintenance, preventive maintenance, rebuilding, and alteration...

    Science.gov (United States)

    2010-01-01

    ... Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Content, form, and disposition of maintenance, preventive maintenance, rebuilding, and alteration records (except inspections performed...

  19. DATA SHARING REPORT CHARACTERIZATION OF POPULATION 7: PERSONAL PROTECTIVE EQUIPMENT, DRY ACTIVE WASTE, AND MISCELLANEOUS DEBRIS, SURVEILLANCE AND MAINTENANCE PROJECT OAK RIDGE NATIONAL LABORATORY OAK RIDGE, TENNESSEE

    Energy Technology Data Exchange (ETDEWEB)

    Harpenau, Evan M

    2013-10-10

    The U.S. Department of Energy (DOE) Oak Ridge Office of Environmental Management (EM-OR) requested that Oak Ridge Associated Universities (ORAU), working under the Oak Ridge Institute for Science and Education (ORISE) contract, provide technical and independent waste management planning support under the American Recovery and Reinvestment Act (ARRA). Specifically, DOE EM-OR requested that ORAU plan and implement a sampling and analysis campaign targeting certain URS|CH2M Oak Ridge, LLC (UCOR) surveillance and maintenance (S&M) process inventory waste. Eight populations of historical and reoccurring S&M waste at the Oak Ridge National Laboratory (ORNL) have been identified in the Waste Handling Plan for Surveillance and Maintenance Activities at the Oak Ridge National Laboratory, DOE/OR/01-2565&D2 (WHP) (DOE 2012) for evaluation and processing to determine a final pathway for disposal. Population 7 (POP 7) consists of 56 containers of aged, low-level and potentially mixed S&M waste that has been staged in various locations around ORNL. Several of these POP 7 containers primarily contain personal protective equipment (PPE) and dry active waste (DAW), but may contain other miscellaneous debris. This data sharing report addresses the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) specified waste in a 13-container subpopulation (including eight steel boxes, three 55-gal drums, one sealand, and one intermodal) that lacked sufficient characterization data for possible disposal at the Environmental Management Waste Management Facility (EMWMF) using the approved Waste Lot (WL) 108.1 profile.

  20. 基于虚拟技术的矿山设备维修训练系统设计研究%Design of maintenance training system for mining equipments based on virtualization technology

    Institute of Scientific and Technical Information of China (English)

    金葵

    2011-01-01

    以改进矿山设备维修训练手段为目的,通过对矿山设备虚拟维修系统开发关键技术的分析,提出了基于虚拟技术的矿山设备维修训练系统结构设计思路;并将建立好的设备训练系统应用于矿山维修训练中,达到了降低训练费用、缩短训练时间及提高训练效果的目的.%In order to improve the maintenance training methods for mining equipments, after analysing key technologies of developing virtual maintenance system for mining equipments, the ideas of designing the structure of maintenance training system for mining equipments based on virtualization technology are proposed.In addition, the established maintenance training system is applied to maintenance training in a mine, thus training costs decrease, training duration shortens and training effects improve.

  1. Maintenance Support Ability Evaluation Model of Aeronautical Equipment Based on Weighted LS-SVM%加权LS-SVM的航空装备维修保障能力评估模型

    Institute of Scientific and Technical Information of China (English)

    胡新江; 徐浩军; 王文栋; 揭军魂

    2012-01-01

    Maintenance support ability evaluation work is an important content of aeronautical equipment whole-system and whole-life management. The scientific and precise evaluation method of maintenance support ability is the base to achieve the precise support of aeronautical equipment. Firstly, the evaluation guideline system of aeronautical equipment maintenance support ability is established. Then the key factor guidelines are made sure. Finally, the evaluation model of aeronautical equipment maintenance support ability based on Weighted LS-SVM is established. The simulation results show that the method is valid.%维修保障能力评估工作是航空装备全系统全寿命管理的一项重要内容,科学精确的维修保障能力评估方法是实现航空装备精确化保障的基础.首先建立了航空装备维修保障能力评估指标体系,确定了关键要素指标,然后建立了基于加权LS-SVM的航空装备维修保障能力评估模型,仿真结果验证了该方法的有效性.

  2. Dynamic Evolution Model of Equipment Maintenance Organizational Structure Based on Multielement-Weighted Network%基于多元加权网络的装备维修保障组织结构动态演化模型

    Institute of Scientific and Technical Information of China (English)

    徐玉国; 邱静; 刘冠军

    2012-01-01

    针对维修保障组织结构的动态性分析与设计,引入了复杂网络的描述与分析方法,分析了现代维修保障组织的网络化特性,提出了描述维修保障组织结构的多元加权网络模型,并定义了刻画维修保障组织结构的5个特征量.通过分析拓扑结构特性与动态演化对维修保障组织结构的影响,提出了适应演化与随机演化2种维修保障组织结构的动态演化模型,并将其与5个特征量相结合提出了分析组织结构模型动态演化规律的算法,最终验证了该方法的可行性.结果表明该方法可以为维修保障组织结构的设计提供重要支持.%The dynamic analysis and design of equipment maintenance logistics organizational structure is a critical challenge in a complex networked environment. The network characteristics of equipment maintenance logistics organization was analyzed by using the complex network theory. A multielement-weighted network model of equipment maintenance logistics organizational structure was addressed, and five characteristic values which depict the maintenance logistics organizational structure were defined. The impact of topology characteristics and dynamic evolution on the equipment maintenance logistics organizational structure was analyzed. Two dynamic evolution models of equipment maintenance logistics organizational structure were proposed based on the multielement-weighted network, which are the random evolution model and the adaptive evolution model. And an algorithm for the analysis of organizational structure dynamics was proposed using the models along with those five characteristic values. Finally, an equipment maintenance logistics organizational structure was provided to illustrate the feasibility of the proposed method. The impact of adaptive evolution model parameters on the organizational structure performance was analyzed. The result shows the proposed method can be used to obtain the best maintenance

  3. Input and Output Parameters of Equipment Maintenance Support Simulation System Evaluation%装备维修保障仿真系统评价的输入、输出参数

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    基于仿真实体研究了装备维修保障仿真系统的输入影响参数;对单元体进行了分类,分析了其属性,提出了聚合体属性的聚合方法。从装备维修保障能力综合评价和维修保障系统能力评价2个角度,研究了装备维修保障仿真系统的输出评价参数:考虑装备完好性和任务成功性,确定了装备维修保障能力综合评价参数;考虑保障目标和维修保障系统的层次性,确定了维修保障系统能力评价参数。研究理清了装备维修保障仿真系统的输入、输出,为后续研究工作奠定了基础。%Based on simulation entity,the input impact parameter of equipment maintenance support si-mulation system is studied,the unit entity is classified,the properties are analyzed,and the polymeriza-tion method of polymer entity properties is proposed.From the two angles of integrated evaluation of e-quipment maintenance support ability and evaluation of maintenance support system,the output evaluation parameters of equipment maintenance support simulation system are researched:in terms of the equipment readiness and mission success,the integrated evaluation parameters of equipment maintenance support abil-ity are determined;in terms of the different support goals and maintenance support system hierarchy,the e-valuation parameters of maintenance support system are determined.The input and output of equipment ma-intenance support simulation system is sorted out,which lays the foundation for the further research.

  4. Key Module and Frame of Maintenance Knowledge Management System to Large Equipment%大型设备维修知识管理系统框架及关键模块研究

    Institute of Scientific and Technical Information of China (English)

    侯成义; 赵永强

    2012-01-01

    完善的维修知识管理系统,可提高大型设备维修质量及效率.以组织、知识、作业、信息等为基础输入,配置相应的相关资源,构建出大型设备维修知识管理系统架构,系统包括维修知识管理子系统、集成化预防维护管理系统、维修知识信息平台三大模块.模块间的有效对接有助于维修人员对大型设备关键故障的识别及诊断,能帮助维修人员确定最优预防维修策略及方法,并以动态维护体系实现了设备的全面预防管理.对大型设备的维修有着较强的理论意义及现实价值.%Maintenance knowledge management system can improve the quality and efficiency of large equipment maintenance. The large equipment maintenance knowledge management system is constructed based on organization, knowledge, operation and information by efficient resources configuration. The system includes maintenance knowledge management subsystem, integration preventive maintenance management system and maintenance knowledge information platform. The maintenance knowledge management system can realize key system fault recognition and diagnosis, the best prevention maintenance strategy and the dynamic maintenance management on the condition of modules' effective docking. This system has a strong theoretical significance and practical value.

  5. Development and Application of Medical Equipment Maintenance Whole Process Management System%医疗设备维修全程管理系统的开发与应用

    Institute of Scientific and Technical Information of China (English)

    王晋宏; 陈维敏

    2011-01-01

    目的开发医疗设备维修全程管理系统软件,实现安装、维修、报修、审批、报废全流程管理,为科学管理提供数据支持.方法 根据设备维修工作流程,利用网络数据库和客户端开发工具设计医疗设备维修全程管理系统软件.结果 实现了医疗设备维修流程的透明管理,管理层能及时发现工作中的问题并及时处理.结论 医疗设备维修全程管理软件实现了维修过程的有效控制,为医疗设备的科学管理提供了数据支持.%Objective To develop the medical equipment maintenance whole process management software, thus to realize whole process management of installation,maintenance, report for repairs, examination and approval, and scrapping. Method According to the equipment maintenance process,using network database and client development tool to develop the software. Result We have realized medical equipment maintenance whole process management. The management directors can identify and deal with the problems in time. Conclusion Using the software,we have realized effective control for medical equipment maintenance, and provided the data support for medical equipment scientific management.

  6. 48 CFR 246.408-71 - Aircraft.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Aircraft. 246.408-71... Aircraft. (a) The Federal Aviation Administration (FAA) has certain responsibilities and prerogatives in connection with some commercial aircraft and of aircraft equipment and accessories (Pub. L. 85-726 (72...

  7. Benefits to space logistics and supportability using intelligent, decision-making self-prognostic equipment

    Science.gov (United States)

    Losik, L.

    To improve logistics and supportability for existing and future space systems, the key design driver needs to be changed from equipment and system performance to equipment usable life as is done on Air Force fighter aircraft and the new Boeing commercial passenger aircraft. Today, all space system procurement contracts require equipment performance to be measured and confirmed before purchase and delivery, but the same procurement contracts do not require the usable life of the equipment to be measured and confirmed resulting in equipment whose reliability/usable life is dominated by premature (infant mortality) failures. Premature failures drive space system logistics and supportability, increasing cost and decreasing serviceability and availability. However, reliability-centered systems measure equipment usable life to identify any equipment that suffer from an infant mortality for replacement before delivery, offer superior system availability, maintainability, reliability and supportability along with meeting or exceeding equipment and system performance requirements. Today, the expensive and outdated routine maintenance programs can be replaced by the cost-saving, condition-based maintenance (CBM) program. The CBM includes using intelligent, decision-making self-prognostic equipment that decrease increases availability while lowering the life cycle cost. The CBM is ideal for improving the logistics, availability and supportability for existing and tomorrow's space exploration programs that benefit financially from having the right equipment and supplies available at the right time.

  8. Maintenance management at the High Flux Isotope Reactor

    International Nuclear Information System (INIS)

    Maintenance procedures are described for mechanical and electrical equipment; nuclear and process instrumentation; operational maintenance; equipment and systems inspections; and HFIR quality assurance

  9. Asphalt in Pavement Maintenance.

    Science.gov (United States)

    Asphalt Inst., College Park, MD.

    Maintenance methods that can be used equally well in all regions of the country have been developed for the use of asphalt in pavement maintenance. Specific information covering methods, equipment and terminology that applies to the use of asphalt in the maintenance of all types of pavement structures, including shoulders, is provided. In many…

  10. 防空导弹武控设备实现CBM方法的探讨%Research on the Condition Based Maintenance for Weapon Control Equipment of Air-defense Missile

    Institute of Scientific and Technical Information of China (English)

    曲宏宇; 向哲

    2012-01-01

    针对解决防空导弹武控设备目前维修方式中的诸多问题,基于状态的维修(CBM)方式是有效解决途径之一。分析了对防空导弹武控设备进行CBM时的状态监测、失效模型建立、故障预测和维修决策等关键技术问题,探讨了防空导弹武控设备实现CBM的技术对策。结果表明,CBM具有诸多优点,它的实践应用必将引发武控设备维修技术的根本变革,促进高新技术在防空导弹武控设备维修领域的应用。%The condition based maintenance(CBM) is one of effective maintenance methods for weapon control equipment of air-defense missile.The key techniques is analyzed about inspecting the condition,establishing invalidation modal,forecasting malfunction,maintenance decision-making of CBM that is used for weapon control equipment of air-defense missile,the technique countermeasure of carrying CBM is introduced.The results show CBM is effective,which will result in radical change in maintenance technique of weapon control equipment,and promote using of new techniques in maintenance for weapon control equipment of air-defense missile.

  11. 装甲装备高新技术系统维修方案决策经济性分析%Economic Analysis of Maintenance Plan Decision Making for High Tech System of Armored Equipment

    Institute of Scientific and Technical Information of China (English)

    张晓峰

    2015-01-01

    针对装甲装备高新技术系统维修过程中维修方案决策的经济性分析仍缺乏有效方法的现状,本文以实际维修的三级结构出发进行了经济性分析。首先分析了可行决策的描述方式和决策事件,然后建立了费用估算模型,并结合装甲装备火控系统的维修进行了实例分析,结果表明,本文提出的维修方案决策的经济性分析方法合理有效。%In view of the economic analysis of maintenance plan decision making in the maintenance process of the high tech system of armored equipment, this paper carries out the economic analysis on the three level structure of the actual maintenance. Firstly, the description method and decision event of feasible decision are analyzed, then the cost estimation model is established. An example analysis of the maintenance of the fire control system of armored equipment is carried out, and the results show that the method of economic analysis of maintenance plan decision is reasonable and effective.

  12. 基于鲁棒性的装备维修器材供应链管理优化研究%On Optimization of Supply Chain Management of Equipment Maintenance Facilities Based on Robustness

    Institute of Scientific and Technical Information of China (English)

    赵坤; 张春润; 熊林伟; 伊洪冰; 刘亚东

    2012-01-01

    装备维修器材供应链管理对于新时期我军装备保障意义重大。以提高现代战争条件下装备维修器材供应链稳定性为目的,在分析基本概念的基础上,提出基于鲁棒性的装备维修器材供应链管理优化策略。针对可能出现的危机,提出供应链危机管理对策,为装备维修器材供应链的构建提供理论借鉴。%The supply chain management would be of great importance to newtime our army~ equipment support, aiming at enhancing the stability of equipment maintenance facilities supply chain, this paper brought forward optimizing strategy of the supply chain management of equipment maintenance facilities based on the analysis of basic concepts, and aiming at po- tential crisis, put forward crisis management countermeasure on supply chain, which provide theory reference for the con- struetion of the supply chain management of equipment maintenance facilities.

  13. 美军装备维修保障法规建设情况及对我军的启示%On Laws and Regulations Construction of US Army Equipment Maintenance Support and Its Enlightenments

    Institute of Scientific and Technical Information of China (English)

    毕海玲; 赵劲松; 王贤章; 刘伟

    2011-01-01

    通过对美军装备维修保障法规现状的分析,总结其特点和发展趋势,为我军维修保障法规建设提供参考。%The paper analyzes the current condition of the regulation system of US Army equipment maintenance support,summarizes the traits and trends of its development,which can provide some references for the laws and regulations construction of Chinese maintenance support.

  14. Mission management aircraft operations manual

    Science.gov (United States)

    1992-01-01

    This manual prescribes the NASA mission management aircraft program and provides policies and criteria for the safe and economical operation, maintenance, and inspection of NASA mission management aircraft. The operation of NASA mission management aircraft is based on the concept that safety has the highest priority. Operations involving unwarranted risks will not be tolerated. NASA mission management aircraft will be designated by the Associate Administrator for Management Systems and Facilities. NASA mission management aircraft are public aircraft as defined by the Federal Aviation Act of 1958. Maintenance standards, as a minimum, will meet those required for retention of Federal Aviation Administration (FAA) airworthiness certification. Federal Aviation Regulation Part 91, Subparts A and B, will apply except when requirements of this manual are more restrictive.

  15. 基于故障率修正参数的生产设备预防性维修研究%Reaserch of Preventive Maintenance of Production Equipments Based on Malfunction Rate Correction Factor

    Institute of Scientific and Technical Information of China (English)

    王中杰; 胡苗; 张鹏

    2011-01-01

    点检定修制是生产设备预防性维修的1种重要方法,是全员、全过程对设备进行动态管理的1种设备管理方法.点检定修制的核心是确定点检周期,即预防性维修周期.为此引入故障率修正参数,建立了基于单位时间净生产效益的生产设备预防性维修模型,并通过仿真的方法确立最佳预防性维修周期和维修次数,阐述了维修程度的不同对预防性维修周期的影响以及预防性维修对企业增加利润的重要性.结果表明,选择合理的故障率修正参数可以有效降低故障率,增大平均单位产值,从而为管理者制定有效的维修计划提供决策.%As an important preventive maintenance method for production equipments, point inspection maintenance system achieves full dynamic management of the whole process for production equipments. The core of point inspection maintenance is to determine the preventive maintenance cycle. By introducing the malfunction rate correction factor, the preventive maintenance model for equipments is established based on net production efficiency per unit of time, and the optimal preventive maintenance cycle and times were determined by simulation. Furthermore, the impact of maintenance degree on maintenance cycle was discussed, as well as the preventive maintenance on increasing the enterprise profit. The result indicated that, reasonable choice of malfunction rate correction factor may decrease the malfunction rate effectively, increase the net production efficiency per unit of time, which provides a reference for the manager to work out the effective maintain plan.

  16. 浙江电网输变电设备智能化及状态检修体系%Intelligentization and Condition-based Maintenance System of Transmission and Distribution Equipments in Zhejiang Electric Power Network

    Institute of Scientific and Technical Information of China (English)

    王少华; 胡文堂; 梅冰笑; 董建洋; 童杭伟

    2013-01-01

    Intelligentization of power transmission and distribution equipments and building of condition-based maintenance system are key links for the establishment of smart grid, and improvement of reliability and efficiency of power transmission equipment In this paper, considering the actual situation of Zhejiang electric power network, the key technologies supporting the intelligentization of power transmission and distribution equipments are described. For example, condition monitoring technology of transmission lines, intelligent detecting technology with helicopter, geographic information systems (GIS) and on-line monitoring technology of substation equipment are introduced. On this basis, the condition assessment and maintenance system of Zhejiang electric power transmission and distribution equipments are described. Besides, the works for further deepening of equipment intelligentization and condition-based maintenance equipment are pointed out, in order to offer references for the intelligentization of power transmission and distribution equipments and condition-based maintenance system of Zhejiang electric power network.%输变电设备智能化及状态检修体系的构建是建设智能电网,提高输变电设备可靠性及利用率的关键环节.结合浙江电网的实际情况,笔者阐述了支撑输变电设备智能化的关键技术,如输电线路状态监测技术、直升机智能巡检技术、地理信息系统(GIS)及变电设备在线监测技术等.在此基础上,介绍了浙江电网输变电设备状态评价及检修体系.同时,指出了在深化设备智能化及状态检修方面尚需进一步完善的一些工作,以期能为全面推进浙江电网输变电设备的智能化和状态检修提供参考.

  17. Equipment Support Operation and Maintenance Manpower Requirement Forecasting Model Based on Support Activity Flow%基于保障活动流程的装备保障使用与维修人力资源需求预测模型

    Institute of Scientific and Technical Information of China (English)

    邱燕琳; 王治宇; 章文晋

    2011-01-01

    In order to resolve the problems encountered in the process of forecasting operation and maintenance manpower during the design and development phase, including the difficulty to collect the input data of the forecast models and their imprecise and unauthentic output results, an operation and maintenance manpower forecasting model is established based on support activity flow described by functional flow diagrams. The typical mission of equipment is analyzed and the quantity of operation and maintenance support activities happened in the duration of the mission is calculated on the basis of the typical mission's data and equipment's reliability data. The man's working hours and maximum number required by the bottom support activities of the functional flow diagrams are calculated. A bottom-up approach to sum the total man' working hours and maximum number by the operation and maintenance support in the duration of the mission is presented. At last, the proposed model is demonstrated via a practical case of aircraft, which proved that the model is corrective and effective.%为解决研制阶段装备保障使用与维修人力资源需求预测过程中数据收集困难、预测精度不高等问题,建立了基于保障活动流程的装备保障人力资源需求预测模型.模型计算了研制阶段装备典型使用任务时的使用与维修保障活动次数;基于功能分析框图,计算框图底层保障活动所需的人员工时及单个活动所需最大人员数量,逐层向上汇总并获得装备使用任务阶段内所需的人员总工时和人员总数.通过算例验证模型的合理性与工程适用性,为研制部门预测装备使用与维修保障人力资源需求提供参考.

  18. Industrial Mechanical Maintenance.

    Science.gov (United States)

    Hendrix, Laborn J.

    This manual was developed to assist teachers in Oklahoma in preparing students for industrial mechanical maintenance. The materials in this teacher's guide are organized in 14 units of instruction covering the following four areas: receiving and setting equipment; equipment hookup and operation; equipment layout, anchoring, and setup; and…

  19. 14 CFR 135.433 - Maintenance and preventive maintenance training program.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Maintenance and preventive maintenance training program. 135.433 Section 135.433 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT... SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations § 135.433 Maintenance and...

  20. Penerapan Total Productive Maintenance untuk Peningkatan Efisiensi Produksi dengan Menggunakan Metode Overall Equipment Effectiveness Pada Turbin Uap Type C5DS II - Gvs di PT. PP London Sumatera Indonesia Tbk Begerpang POM

    OpenAIRE

    Perangin–angin, Joel Bastanta

    2016-01-01

    Generally, there is nothing properties hand made without damaging, steam turbine engines as an example. But the damage can be prevent by the precise method maintenance in the machines for the long life time. This study analyzes the application of Total Productive Maintenace (TPM) at the steam turbine machinery to increase productivity by using the method Overall Equipment Efectiveness (OEE). In the analysis of TPM using OEE there are six causes of loss called Six Big Losses,...

  1. Research on the Eoploratory Analysis Method of Equipment Maintenance Support System Based on Simulation%基于仿真的装备维修保障系统探索性分析方法研究

    Institute of Scientific and Technical Information of China (English)

    杨英杰; 于永利; 张柳; 聂成龙; 宋海霞

    2014-01-01

    在基于仿真的装备维修保障系统运行评价的研究实践中,遇到输入影响因素多,因素取值调整复杂的现实问题。针对这一现实需求,将探索性分析思想引入装备维修保障系统的评价中。首先利用数学形式化建模方法,研究基于仿真的装备维修保障系统探索性分析方法的问题实质,在此基础上,提出基于仿真的装备维修保障系统探索性分析方法的研究路线,对所涉及的关键问题逐一进行分析,进而提出解决各个关键问题的技术途径。%During the research practice of evaluating the equipment maintenance support system operation based on simulation,such problems as multiple input factors,complexity of value factors adj ustment and other practical problems are encountered.This paper aims to meet these demands and introduces an exploratory analysis in the evaluation of the equipment maintenance support system operation.Firstly,by the use of mathematical formalization modeling method,nature of the equipment maintenance support system operation based on simulation is studied;then on this ba-sis,the research directions of the equipment maintenance support system operation based on simu-lation are proposed and each of the key issues involved is analyzed;and finally,the technical ap-proach to solve each key issues is proposed.

  2. Uncertainty of Model Input and Output in Equipment Maintenance Support Information Analysis%装备维修保障中模型输入、输出的不确定性研究

    Institute of Scientific and Technical Information of China (English)

    倪祥龙; 康建设; 王广彦; 白永生

    2014-01-01

    In order to study uncertainty spreading in equipment maintenance support information analysis. This paper illustrates the process of equipment maintenance support information analysis and summarizes two kinds of uncertainty forms,probable values and interval values. To measure uncertainty is based on the entropy theory in this paper. Then it explains the interval value uncertainty spreading mechanism in equipment maintenance support information analysis. The method of analysis the interval values uncertainty spreading based on blind number theory is studied. At last,combining with the uncertainty result of case proves that blind number theory are usefully to analysis uncertainty problem of equipment maintenance support and improve decision rationality.%为研究不确定性在装备维修保障信息分析中的传播,首先介绍了装备维修保障信息分析的过程,归纳了概率值与区间值两种不确定性表现形式,研究了基于熵的不确定性度量方法;然后研究了装备维修保障信息分析中的区间值不确定性的传播机理,以及应用盲数理论分析区间值不确定性传播的原理;最后结合平均维修时间的案例验证了盲数理论的应用,并得到带有不确定性的结果。说明了盲数理论有助于分析维修保障中的不确定性问题,提高决策科学性。

  3. Safety Forecast Model of Aircraft Maintenance Technicians Based on GA-BP Arithmetic%基于GA-BP算法的飞机维修人员安全预测模型

    Institute of Scientific and Technical Information of China (English)

    林嘉豪; 李克武; 刘楠; 张兵

    2012-01-01

    为实现对飞机维修人员安全性的有效预测,构建了维修人员安全性评价指标.通过专家打分法获得了维修人员安全性评价指标的原始训练数据和测试数据,分别采用BP-GDM模型、BP-LM模型和GA-BP-LM模型对数据进行了训练和预测,仿真结果表明:BP-GDM模型预测精度最差,且训练耗时较长,而GA-BP-LM模型不仅可以获得较高的预测精度,且耗时最短,BP-LM模型居中.此外GA-BP-LM模型相对误差值波动幅度最小,平均相对误差仅为3.33%,达到了预测的精度要求,为飞机维修人员安全性预测提供了有效手段.%In order to scientific predict the safety of the aircraft maintenance technicians, the safety evaluation index is established. Different kinds of aircraft maintenance technicians safety evaluation index originality training data and test data are gained by expert mark method, used the BP-GDM model, BP-LM model and GA-BP-LM model to train and predict, the simulation result show that: the forecast precision of BP-GDM model is the worst and consume lots of time, but GA-BP-LM gained the best forecast precision and the lest simulation time, the BP-LM was placed in the middle. What's more GA-BP-LM model had the smallest opposite error fluctuate, and the average opposite error value is only 3. 33%, which matched well with the expect requirement, the model provide effective method for predict of aircraft maintenance technicians safety.

  4. 基于风险评估建立医疗设备预防性维护周期%Establishment of a Medical Equipment Preventive Maintenance Cycle Based on Risk Assessment

    Institute of Scientific and Technical Information of China (English)

    张鹏

    2015-01-01

    This paper explored the medical equipment preventive maintenance cycle from the perspective of risk assessment. Based on the well-deifned objective of the maintenance solutions, the risk assessment system developed by Vermont University was applied to determine the testing cycle. Real examples were taken in this paper to analyze the maintenance solution and assess its validity.%本文从风险评估的角度,探讨医疗设备预防性维护周期的确定。在确定维护方案目标的基础上,应用Vermont大学开发的风险评估系统确定检查间期,以实例分析维护方案并对其进行有效性评估。

  5. 基于Extend的舰船装备维修流程建模与仿真研究%Modeling and simulation of maintenance process of warship equipment based on Extend

    Institute of Scientific and Technical Information of China (English)

    马朝阳; 杨晶; 宋金明

    2011-01-01

    After analyzing maintenance process, the Extend platform was applied to simulate and model the maintenance process of ship equipment. The experiential data were used to define the mathematical model, analyze the rationality of the model, and optimize the maintenance decision-making.%通过分析一般舰船装备的维修流程,应用现有流程仿真软件Extend平台对舰船装备的维修流程进行建模和仿真。设置模型参数,根据模型运行结果分析模型设置的合理性,对维修的决策进行优化。

  6. Analysis and Forecast of Maintenance Materials and Parts of Meteorological and Hydrological Equipment Consumption Based on Gompertz Curve%基于Gompertz的气象水文装备维修器材消耗量分析与预测

    Institute of Scientific and Technical Information of China (English)

    沈永伟

    2011-01-01

    利用由Gompertz曲线推导出的生命周期曲线建立了气象水文装备维修器材消耗-时间模型.计算表明,由Gompertz曲线推导出的生命周期曲线可以较好地反映气象水文装备维修器材消耗量与时间之间的关系,所建模型的预测结果也较好,具有较高的实用性,为探索气象水文装备维修器材消耗规律提供了一种简单有效的科学方法.%Maintenance materials and parts consumption-time model of meteorological and hydrological equipment was established using the life cycle curve deducted from Gompertz curve. Computation results showed that the life cycle curve can better reflect the relationship between maintenance materials and parts consumption of meteorological and hydrological equipment and time; the forecasting results obtained from the model are preferable; the model has higher practicability. The purpose was to provide a valid and scientific approach for investigating consumption rule of maintenance materials and parts of meteorological and hydrological equipment.

  7. General Research on Advanced Maintenance Program Development for New Commercial Aircraft%浅析民用飞机先进维修计划的制订

    Institute of Scientific and Technical Information of China (English)

    徐志锋; 王勇; 那衡

    2011-01-01

    安全、可靠和经济性是制定维修计划的中心点,维修计划也是一切维修活动的指导性文件。面对民用航空产业竞争的加剧,航空公司已很难增加盈利水平,但却可以利用先进的维修计划有效降低维修成本,从而间接提高盈利水平。本文从MSG-3分析,直接维修成本(DMC)预估及技术支持角度,讲述了如何在设计过程中系统地为新型飞机制定先进的维修计划。%The development of maintenance program is primarily based on safety,reliability and economical efficiency,and it is also the guideline for all the maintenance activities.In the face of fierce competition,airlines have limited opportunity to increase their revenue.However,there is an opportunity to reduce costs through an advanced maintenance program for an indirect increase of the revenue.This article states the method about how to develop an advanced maintenance program systematically from the point of view of MSG-3 analysis,Direct Maintenance Cost(DMC) and technical support.

  8. 便携式国产大飞机维修辅助设备的设计与实现%Research and implementation of portable maintenance aids based on China-made large aircraft

    Institute of Scientific and Technical Information of China (English)

    包江奇; 黄炜

    2011-01-01

    This paper designed China-made large aircraft portable maintenance aids based on ARM processor. The PMA is designed by the characteristics of S3C2440 and some outer module as hardware platform, using embedded Linux as opoeration system and QT/Embedded as graphical user interface to design the system application software.%设计开发了以ARM处理器为核心的便携式国产大飞机维修辅助设备PMA.设备以Samsung公司的S3C2440及其外围扩展模块为硬件实现平台,采用嵌入式操作系统Linux,在QT/Embedded 图形用户界面基础上完成系统应用软件开发.

  9. Japanese Journal of Paper Technology. `98 Technology Annual (machinery, equipment, engineering, maintenance, laboratory utilities, chemical); Kami pulp gikyo times. 1998 nendo gijutsu manual (kikai shizai yakuhin soran)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-08-11

    The general survey of the 1998 technology manual on machinery/materials/chemicals was made public. In the part of machinery/materials, the following are included: pulp manufacturing machine/equipment, used paper treatment/stuff preparation machine/equipment, dedusting/cleaning/concentrating equipment, stuff pump/chemicals pump, paper machine and related equipment, paper machine related tools/machinery/materials, finishing machine/handling equipment, processing facility/processing finishing facilities, equipment for secondary processing/paper product making, measuring control/test analysis equipment/facility, utility/environment related equipment/facility, safety equipment/other related equipment/machinery/materials, etc. In the part of chemicals, assistants for cooking/decoloration/used paper treatment, sizing agent, paper strength reinforcing/paper quality improving agents, filler/pigment, dye/color pigment, inorganic/synthetic fiber, work improving agent, antiseptics/antifungal agent, felt cleaner, antiforming agent, freeness/yield improving agents, flocculant, various assistants, utility use chemicals, functionalizer, processing agent, coating/laminate/chemicals for paper product making, etc. 630 figs, 76 tabs.

  10. 基于粒子群优化算法的输变电设备检修优化%Particle Swarm Optimizer Based Maintenance Scheduling for Power Transmission and Transforming Equipments

    Institute of Scientific and Technical Information of China (English)

    周刚; 王红斌

    2013-01-01

      传统的检修优化模型中,设备的检修状态变量采用0、1二元变量表示,无法用粒子群优化算法(PSO)求解。提出了一种新的输变电设备检修优化模型。该模型用整数表示检修状态变量,使得检修约束得以简化,有利于 PSO 的求解。仿真结果表明,与遗传算法(GA)相比,在该模型下 PSO 收敛速度更快,获得更优的解。%The particle swarm optimizer (PSO) is unable for the traditional maintenance scheduling (MS) as its maintenance status variables of equipments are represented by 0 or 1 of binary number. This paper presents a novel model for maintenance scheduling (MS) for generators and transmission lines, in which the maintenance status variables are represented by integer numbers as to simplify maintenance constraints and favor PSO. The simulation results show that in comparison with the genetic algorithm (GA), the PSO with the proposed scheduling can implement with fast convergence and achieve better solution.

  11. 14 CFR 43.17 - Maintenance, preventive maintenance, and alterations performed on U.S. aeronautical products by...

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Maintenance, preventive maintenance, and... Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING, AND ALTERATION § 43.17 Maintenance, preventive maintenance,...

  12. Maintenance Strategy on Petrochemical Plant Rotating Equipment Based on RCM%以可靠性为中心的石化动设备维修策略研究

    Institute of Scientific and Technical Information of China (English)

    钟军平; 路笃辉; 郑庆元; 姜海一; 李翔; 赵盈国

    2015-01-01

    This article provids a brief overview of the equipment maintenance mode developments, and it points out that RCM is an advanced management mode which is internationally accepted. The RCM process this article has used is expounded, and the advantages of RCM are pointed out. The atmospheric and vacuum distillation unit in a reifnery is divided and the number of equipment is counted. After the initial screening of the atmospheric and vacuum distillation unit, 50 sets of high or medium risk equipment are conifrmed, and FMECA analysis in detail is done. The analysis shows that, in the 76 sets of in service equipment there are 49 sets of equipment in medium or high risk and 27 sets of equipment in low risk, and the maintenance strategy is presented in detail.%本文简要介绍了设备维修模式的发展情况,指出以可靠性为中心的维修(RCM)是目前国际上公认度较高的维修管理模式,并对本文中所使用到的RCM方法流程进行了阐述,指出实施RCM的优越性。对某炼化企业II套常减压装置进行单元划分并统计各单元中的设备数量。通过对II常装置进行初步筛选,确定出50台高、中风险设备,并对它们进行详细的FMECA分析。最终确定出在76台在役设备中存在中高风险设备49台,低风险设备27台,并据此给出了详细的维修策略。

  13. 一种基于MRP原理的改进设备维护工单计划系统及其应用%An Improved Equipment Maintenance Planning System Based on MRP and its Application

    Institute of Scientific and Technical Information of China (English)

    刘建胜; 周娟; 涂海宁; 夏芳臣; 熊君星

    2012-01-01

    Specific to lack of executive ability of traditional equipment maintenance worksheet planning,a close loop system with feedback is designed in detail based on the principle of material requirement planning.Taking maintenance worksheet requirement planning as input .through logic calculation, maintenance resource requirement planning is generated automatically.Then by balancing maintenance capacity,he maintenance worksheet execution planning is finally produced.On the basis of the state accumulator rigger,dynamic generation logic of maintenance worksheet requirement planning is analyzed selectively and specific algorithm and sequences are given in detail-Meanwhile the concepts and strategies of maintenance capacity balance are especially explained,Finally,system function design and database design are liscussed in brief and an enterprise application case is provided.%针对传统设备维护工单计划可执行能力的不足,根据物料需求计划原理,设计了基于闭环反馈机制的系统工作原理,将维护工单需求计划作为输入,通过资源需求逻辑计算,自动产生维护资源需求计划,并进行设备维护能力平衡,最终生成可行的维护工单执行计划;重点分析了基于状态累加器触发方式的维护工单需求计划动态生成逻辑,给出了具体的算法步骤,详细介绍了设备维护能力平衡概念及控制策略;最后简要讨论了系统的功能设计、数据库设计,给出了应用案例.

  14. 基于SOA的输变电设备优化检修系统架构设计%Architecture Design of Optimal Transmission & Distribution Equipment Maintenance System Based on SOA

    Institute of Scientific and Technical Information of China (English)

    朱承治; 王光增; 孔晓峰

    2011-01-01

    输变电设备优化检修是集状态检修、预防性试验检修和可靠性检修为一体的综合性检修方式,能大幅提升电网企业设备检修管理水平,而当前电网企业却缺乏相应的检修管理系统支持.基于面向服务架构(SOA)规划输变电设备优化检修系统的层次模型和相关服务,其中业务流程服务包含状态监测与评估、故障诊断和预测、检修决策与管理等核心业务,通过业务抽象封装和业务流程编制建立服务层,提供涉及应用和业务流程的三大类服务,并采用WebServices管理该服务层.%The optimal maintenance and repair of the transmission & distribution equipment is a comprehensive and integrated maintenance pattern which consists of the condition-based, preventive test and reliability maintenance and repair. It can substantially improve the maintenance and repair level for the power grid enterprise. At present, however, there is no corresponding maintenance management support system for the power grid enterprise. This paper designs the layer model and the related services of the optimal maintenance and repair, and Its business process covers key functional services such as condition monitoring and assessment, fault diagnosis and forecast, maintenance decision and management. The service layer established through application encapsulation and business process programming to provide the above mentioned services, and the WebServices platform is adopted to manage the service layer.

  15. Qualitative analysis of maintenance and services carried out in a repair plant on the example of a multi-purpose aircraft

    Directory of Open Access Journals (Sweden)

    Woźny Piotr

    2015-12-01

    Full Text Available The article presents revealed failures and damages of the multi-task aircraft (ACFT reported by users to the service organization, aimed at assessing and removing them. In the course of the analysis process, damages and malfunctions were grouped, depending on aviation specialities. A review was conducted that targeted occurring malfunctions and damages in a set of ACFT of the same type, over a twelve-year operational period. In the assessed period, trend lines were determined, showing a drop in the number of accepted claims submitted by ACFT users.

  16. 某型飞机前起落架顶起装置设计和实现%Design and Implementation of Nose Landing Gear Jack-up Equipment of an Aircraft

    Institute of Scientific and Technical Information of China (English)

    顾星

    2014-01-01

    The article introduces an aircraft nose landing gear jack-up equipment which is used for simulating an aircraft's nose landing gear swerving test. The main scheme is introduced and the equipment is driven by air. The jack-up actuator is designed as body with three supports and road wheels, this kind of design can not only provide the enough strength and stiffness but also be moved easily. The electrical control section controls the magnetic exchange valve to supply air for the double-acting cylinder, this can achieve the actuator up and down. The equipment is sutably designed with not too much structures and it can be easily maintained, operated and moved, it also has breakdown protection, limit protection and urgency outage protection.%该文介绍了为配合模拟某型飞机的前轮转弯试验设计的前起落架顶起装置,给出了其总体方案。装置采用气源驱动,顶起执行机构采用三角支撑架体并配有行走轮,保证机构强度和刚度的同时又便于移动,电气控制部分控制电磁换向阀向双作用气缸供气,实现顶起机构的顶起和放下。整个装置结构紧凑、布局合理、维护简单、操作方便、移动灵活,并有故障保护、限位保护和紧急断电保护功能。

  17. 基于本体和 FTF 的风力发电设备维护优化%Maintenance Optimization for Wind Power Generation Equipment Based on Ontology and FTF

    Institute of Scientific and Technical Information of China (English)

    周安美; 于德介; 刘坚; 李蓉

    2014-01-01

    To meet the needs of maintenance optimization for wind power generation equipment,an ontology-based fault tree analysis(FTA)method was presented,which was the combination of failure mode effects and criticality analysis (FMECA)and FTA.According to the characteristics of failure modes,the FMECA ontology of wind power generation equipment was modeled from four steps.The fault tree could be deduced from the ontology,then the risk priority numbers of the minimal cut sets were calculated,which was used to guide maintenance plan optimization.The problem that FMECA could not investigate multiple failure modes might be solved,and the sharing,reuse and reasoning of maintenance knowledge was realized.The application examples show that the maintenance efficiency of wind power generation equipment can be increased greatly by means of the proposed method.%为满足优化风电设备维护计划的需求,提出了用本体将故障模式影响及危害性分析(FMECA)与故障树分析(FTA)相结合的方法,即 FTF 方法。该方法根据风电设备故障模式的特点,分四个步骤建立了风电 FMECA 领域本体,然后利用本体推导出故障树,计算故障树最小割集的风险顺序数以优化维护计划。该方法解决了 FMECA 不能研究多故障的问题,并实现了知识的共享、重用和推理,能有效提高风电设备维护效率。

  18. 14 CFR 135.173 - Airborne thunderstorm detection equipment requirements.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airborne thunderstorm detection equipment... Aircraft and Equipment § 135.173 Airborne thunderstorm detection equipment requirements. (a) No person may... the aircraft is equipped with either approved thunderstorm detection equipment or approved...

  19. Modern electronic maintenance principles

    CERN Document Server

    Garland, DJ

    2013-01-01

    Modern Electronic Maintenance Principles reviews the principles of maintaining modern, complex electronic equipment, with emphasis on preventive and corrective maintenance. Unfamiliar subjects such as the half-split method of fault location, functional diagrams, and fault finding guides are explained. This book consists of 12 chapters and begins by stressing the need for maintenance principles and discussing the problem of complexity as well as the requirements for a maintenance technician. The next chapter deals with the connection between reliability and maintenance and defines the terms fai

  20. 基于偏最小二乘法的装备维修费用估算方法研究%Research on Maintenance Cost of Equipment Based on Partial Least Squares Regression Methods

    Institute of Scientific and Technical Information of China (English)

    刘霄; 李海军

    2014-01-01

    Current measurement of price fixing that adopt maintenance cost addition means didn ’t present the real needs of equipment repaired ,a estimation method of equipment maintenance cost based on partial least squares regression methods was put ,every objective factors that affected the maintenance cost were considered comprehensively ,the estimate model of one type of equipment maintenance cost was created ,and the assess-ment method of precision was designed .Partial least squares regression has incomparable advantages in aspects of small samples handling ,more independent variables and multi-share with linear characteristics of variables . The fitting degree of estimation model of equipment maintenance cost was well ,and the variables cumulative explaining ability was strong .The computing result for a case proved that the estimating error was less than 5% .%针对现行的维修成本加成定价方式确定装备维修费用不能准确反映维修费用真实需求的问题,提出了一种基于偏最小二乘法的装备维修费用估算方法,综合考虑影响维修费用的各种客观因素,建立了某类装备维修费用估算模型,设计了精度评定方法。结果表明,偏最小二乘回归方法在处理样本容量小、自变量多、变量间存在严重多重共线性问题等方面具有得天独厚的优势,基于该方法建立的维修费用估算模型拟合度好、变量累计解释能力强,实例计算估算误差在5%以内。

  1. Aircraft Data Acquisition

    Directory of Open Access Journals (Sweden)

    Elena BALMUS

    2016-03-01

    Full Text Available The introduction of digital systems instead of analog ones has created a major separation in the aviation technology. Although the digital equipment made possible that the increasingly faster controllers take over, we should say that the real world remains essentially analogue [4]. Fly-by-wire designers attempting to control and measure the real feedback of an aircraft were forced to find a way to connect the analogue environment to their digital equipment. In order to manage the implications of this division in aviation, data optimization and comparison has been quite an important task. The interest in using data acquisition boards is being driven by the technology and design standards in the new generation of aircraft and the ongoing efforts of reducing weight and, in some cases addressing the safety risks. This paper presents a sum of technical report data from post processing and diversification of data acquisition from Arinc 429 interface on a research aircraft platform. Arinc 429 is by far the most common data bus in use on civil transport aircraft, regional jets and executive business jets today. Since its introduction on the Boeing 757/767 and Airbus aircraft in the early 1980s hardly any aircraft has been produced without the use of this data bus. It was used widely by the air transport indu

  2. 改进的细菌觅食算法在航空装备维修任务调度优化中的应用%Improved Bacteria Foraging Optimization Algorithm and its Application in Aviation Equipment Scheduled Maintenance

    Institute of Scientific and Technical Information of China (English)

    崔嘉; 杨林; 胡卫民

    2011-01-01

    Taking an aviation equipment repair factory as the background are improved BFO algorithm was used to the job-shop problem the virtual reality optimal scheduling system was designed and implemented.which will realize optimal scheduling of the maintenance process The system had good application value and could improve the efficiency and command automation lcvel of the aviation equipment maintenance and improve the utilization oF resources, readuce the cost of maintenance support.%以海军航空装备定检维修工作为原型,将一种新兴的仿生全局随机搜索算法--细菌觅食优化算法应用到该类任务调度问题的解决中,对算法进行了改进,增强了全局寻优能力,并将其应用于工程实践,对维修任务工序进行优化调度.对于提高航空装备维修工作效率和指挥自动化水平,提高资源利用率,降低保障维修费用,有较好的应用价值.

  3. 护航编队医疗装备维修保障的主要问题和思考%Problems and Countermeasures in Medical Equipment Maintenance of Chinese Navy Convoy Fleets

    Institute of Scientific and Technical Information of China (English)

    胡红波; 方铁

    2012-01-01

    结合历次护航编队医疗装备的检修经验,分析了护航编队医疗装备维修保障面临的使用频率高、强度大、储存条件差、维修力量薄弱等问题,提出了构建高效全面的预先保障、强化编队自我保障能力、有效依托后方保障力量等对策和措施,建立起一体化的护航编队医疗装备维修保障体系.%The problems of medical equipment maintenance of navy convoy fleets are analyzed based on the experience, such as high utilization frequency and strength, poor storage condition and maintenance force. The counter-measures are put forward accordingly, including the establishment of pre support, self support, base support and integrated medical equipment maintenance system of convoy fleets.

  4. Study on Key Maintenance Equipment for Mid and Low Speed Maglev Train%中低速磁浮列车运用检修关键工艺设备研究

    Institute of Scientific and Technical Information of China (English)

    李经伟; 龙建兵

    2016-01-01

    以国内第一座磁浮车辆段的应用为例,通过对中低速磁浮列车悬浮原理、构造进行分析,研究中低速磁浮列车的维修要点。并结合车辆维修要点,分析适用于磁浮列车运用检修的轨道桥、悬浮架拆装小车、悬浮架综合实验台等关键工艺设备,为今后磁浮车辆段设备的设计提供有益参考。%Taking the fi rst maglev train depot in China for an example the paper studies the main features of maintenance for mid and low-speed maglev train through analyzing the principle and structure. Based on the main factors of train maintenance, it explores the key maintenance equipment for mid and low-speed maglev train, including track bridge, dismantling and assembly trolley with suspension frame and integrated test bench, providing references for the design of equipment for future mid and low speed maglev train.

  5. 47 CFR 32.2113 - Aircraft.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Aircraft. 32.2113 Section 32.2113... FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts § 32.2113 Aircraft. This account shall include the original cost of aircraft and any associated equipment and furnishings...

  6. Analysis of Plan Management Strategy for Strengthening the Maintenance of Distribution Network Equipment%加强配网设备检修的计划管理策略解析

    Institute of Scientific and Technical Information of China (English)

    钟嘉传

    2015-01-01

    在电力系统中,配网是非常重要的组成部分,配网的运行情况会直接影响电力系统的正常运转,因此,需要科学检修、管理配网设备,促使配网设备的运行管理水平得到提高,从而推动供电企业的发展。简要分析了加强配网设备检修和管理的策略,希望可以提供有价值的参考意见。%In the power system, distribution network is very important part; the operation of distribution network will directly affect the power system normal operation. Therefore, it is necessary to scientific maintenance and management of distribution network equipment, make the operation and management level of distribution network equipment is improved, so as to promote for the development of electric power enterprises. This paper briefly analyzes the strategies for strengthening the maintenance and management of distribution network equipment, and hopes to provide valuable reference for the management.

  7. Aircraft electromagnetic compatibility

    Science.gov (United States)

    Clarke, Clifton A.; Larsen, William E.

    1987-01-01

    Illustrated are aircraft architecture, electromagnetic interference environments, electromagnetic compatibility protection techniques, program specifications, tasks, and verification and validation procedures. The environment of 400 Hz power, electrical transients, and radio frequency fields are portrayed and related to thresholds of avionics electronics. Five layers of protection for avionics are defined. Recognition is given to some present day electromagnetic compatibility weaknesses and issues which serve to reemphasize the importance of EMC verification of equipment and parts, and their ultimate EMC validation on the aircraft. Proven standards of grounding, bonding, shielding, wiring, and packaging are laid out to help provide a foundation for a comprehensive approach to successful future aircraft design and an understanding of cost effective EMC in an aircraft setting.

  8. 民用飞机设计驾驶舱操纵设备的评估%Evaluation on Flight Cockpit Control Equipments of Civil Aircraft Design

    Institute of Scientific and Technical Information of China (English)

    丰立东; 赵京洲; 田金强

    2013-01-01

    人机工效影响着飞行员操纵飞机的感受,因此在民用飞机设计过程中,对人机工效进行及早考虑是非常重要的。在民用飞机设计的各个阶段,都需要适时邀请具有一定资质的飞行员对驾驶舱的人机工效进行评估。对民用飞机设计中飞控驾驶舱飞行员评估方法进行介绍,对评估的要点进行总结分析,供相关工程设计人员参考。%Human factors affect the feeling of pilots operating airplanes. It is necessary to take human factors into account at the beginning of designing civil aircraft. During each phase of designing civil aircraft, it is necessary to invite qualified pilots to evaluate human factors in cockpit when needed. A method of pilot evaluation related with flight cockpit control system in designing civil airplane is introduced and some important issues are summarized and analyzed so as to refer to other relevant engineers and designers when necessary.

  9. 14 CFR 135.437 - Authority to perform and approve maintenance, preventive maintenance, and alterations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Authority to perform and approve maintenance, preventive maintenance, and alterations. 135.437 Section 135.437 Aeronautics and Space FEDERAL... AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance,...

  10. 14 CFR 135.423 - Maintenance, preventive maintenance, and alteration organization.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Maintenance, preventive maintenance, and alteration organization. 135.423 Section 135.423 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations § 135.423...

  11. 14 CFR 43.3 - Persons authorized to perform maintenance, preventive maintenance, rebuilding, and alterations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Persons authorized to perform maintenance, preventive maintenance, rebuilding, and alterations. 43.3 Section 43.3 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING,...

  12. 14 CFR 135.425 - Maintenance, preventive maintenance, and alteration programs.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Maintenance, preventive maintenance, and alteration programs. 135.425 Section 135.425 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations § 135.425...

  13. 14 CFR 91.1425 - CAMP: Maintenance, preventive maintenance, and alteration programs.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false CAMP: Maintenance, preventive maintenance... RULES Fractional Ownership Operations Program Management § 91.1425 CAMP: Maintenance, preventive maintenance, and alteration programs. Each program manager who maintains program aircraft under a CAMP...

  14. Smart aircraft fastener evaluation (SAFE) system: a condition-based corrosion detection system for aging aircraft

    Science.gov (United States)

    Schoess, Jeffrey N.; Seifert, Greg; Paul, Clare A.

    1996-05-01

    The smart aircraft fastener evaluation (SAFE) system is an advanced structural health monitoring effort to detect and characterize corrosion in hidden and inaccessible locations of aircraft structures. Hidden corrosion is the number one logistics problem for the U.S. Air Force, with an estimated maintenance cost of $700M per year in 1990 dollars. The SAFE system incorporates a solid-state electrochemical microsensor and smart sensor electronics in the body of a Hi-Lok aircraft fastener to process and autonomously report corrosion status to aircraft maintenance personnel. The long-term payoff for using SAFE technology will be in predictive maintenance for aging aircraft and rotorcraft systems, fugitive emissions applications such as control valves, chemical pipeline vessels, and industrial boilers. Predictive maintenance capability, service, and repair will replace the current practice of scheduled maintenance to substantially reduce operational costs. A summary of the SAFE concept, laboratory test results, and future field test plans is presented.

  15. Performance Evaluation on Lean Six Sigma Management of Equipment Maintenance Organization%装备维修组织精益六西格玛管理绩效评价

    Institute of Scientific and Technical Information of China (English)

    关玄义; 高军; 赵德勇

    2011-01-01

    In order to evaluate the advance level and maturity of lean six sigma management completely and find out the deficiency duly in equipment maintenance organization, the paper builds an evaluation index model and evaluation index system on equipment maintenance organization of lean six sigma management, by introducing instance, it's proved that the evaluation index model and the evaluation index system is logical and feasible, the paper supplies an effective evaluation method to evaluate the performance of lean six sigma management in equipment maintenance organization.%为全面系统地衡量装备维修组织实施精益六西格玛管理的成熟度以及推进水平,及时发现推进过程中存在的不足,构建装备维修组织精益六西格玛管理绩效评价指标体系模型,建立装备维修组织精益六西格玛管理绩效评价指标体系,并以某装备维修工厂精益六西格玛管理为例进行绩效评价.结果表明:建立的指标体系及所用的综合评价方法是合理、有效的,可为装备维修组织评价推行精益六西格玛管理的绩效提供有效的评价方法.

  16. 基于大数据的舰船装备维修保障信息分析系统设计%Design of Ship Equipment Maintenance Information Analysis System Based on Big Data

    Institute of Scientific and Technical Information of China (English)

    李伟; 金国庆

    2016-01-01

    To meet requirements of the information collection ,storage ,analysis and application of the ship equipment maintenance ,the design of analysis system for ship equipment maintenance information based on big data is proposed .The scheme includes four aspects ,including system design ,system structure design ,system function design and system database design .System uses Hadoop cluster component storage ,calculation and analysis of massive amounts of data in the bottom . at the top by interfaces it directly calls the underlying storage and computing power .So functions of data management ,data query ,data analysis and processing for the massive ship equipment maintenance information can be realized .%针对舰船装备维修保障信息采集、存储、分析与应用的需求,提出了基于大数据处理技术的舰船装备维修保障信息分析系统的设计方案。方案中包括系统总体设计、系统结构设计、系统功能设计和系统数据库设计四个方面。系统在底层使用 Hadoop 集群组件存储、计算和分析海量数据信息,在高层通过接口直接透明的调用底层存储与计算能力,从而实现系统对海量舰船装备维修保障信息的基础数据管理、数据统计查询和数据分析处理的功能。

  17. The significance of reactive power compensation equipment in substation and the analysis of operation and maintenance strategy%变电站无功补偿设备增效意义及运维策略分析

    Institute of Scientific and Technical Information of China (English)

    汪日东; 苏业超; 郭士昌

    2016-01-01

    This paper mainly introduces the importance and necessity of reactive power compensation device in power grid operation,and expounds the necessary strategies and measures to strengthen the operation and maintenance of reactive power compensation equipment.%该文主要介绍了无功补偿装置在电网运行中的重要性与必要性,阐述了强化无功补偿设备运行维护需要执行的必要策略和措施。

  18. 变电站无功补偿设备增效意义及运维策略分析%The significance of reactive power compensation equipment in substation and the analysis of operation and maintenance strategy

    Institute of Scientific and Technical Information of China (English)

    汪日东; 苏业超; 郭士昌

    2016-01-01

    This paper mainly introduces the importance and necessity of reactive power compensation device in power grid operation,and expounds the necessary strategies and measures to strengthen the operation and maintenance of reactive power compensation equipment.%该文主要介绍了无功补偿装置在电网运行中的重要性与必要性,阐述了强化无功补偿设备运行维护需要执行的必要策略和措施。

  19. Application of new control technology during the maintenance of equipment in the Laguna Verde nuclear power plant; Aplicacion de nueva tecnologia de control durante el mantenimiento de equipos en la CLV

    Energy Technology Data Exchange (ETDEWEB)

    Ojeda R, M. A. [CFE, Central Laguna Verde, Subgerencia General de Operacion, Veracruz (Mexico)]. e-mail: mario.ojeda@cfe.gob.mx

    2008-07-01

    In the nuclear power plant of Laguna Verde, in normal operation and recharges are carried out activities of preventive maintenance and corrective to different equipment, due to the one displacement of radioactive materials from the vessel of the reactor until the one system of vapor, different radiation levels are generated (from low until very high) in the circuits of vapor and water, the particles can be incrusted on those interior surfaces of the pipes and equipment, creating this way a potential risk of contamination and exhibition during the maintenance of equipment. To help to optimize the dose to the personnel the use of new technology the has been implemented which besides contributing an absolute control of the work, it offers bigger comfort to the one worker during the development of their work, also contributing a supervision more effective of the same one. Using the captured and processed information of the work developed you can use for the personnel's capacitation and feedback of the work for the continuous improvement of the same one. During a reduction of programmed power and normal operation are carried out maintenance correctives and specific works to preserve the readiness and ability of the equipment and with this to maintain the security of the nuclear power plant. The development of the theme it is showing the advances and commitments of personnel to take to excellence to the nuclear power plant of Laguna Verde showing to the obtained results of the dose and benefits of 2 works carried out in the nuclear power plant where tools ALARA were applied as well as the use of the new technology (Video Equipment of Tele dosimetry and Audio 'VETA') in works carried out in the building of purification level 10.15, change and cuts of filter of the prefilters of system G16, as well as,the retirement and transfer for its decay of High Integrity Container (HIC) of the building of purification level -0.55 to the Temporary Warehouse in Site

  20. Improving industrial maintenance contract relationships

    OpenAIRE

    Jong, A. de

    2010-01-01

    Unavailability of technical systems, such as aircraft, is expensive. Technical systems require maintenance to prevent and to remedy defects that cause unavailability. Users of technical systems usually bear the consequences of the risk of unavailability, in particular the loss of productivity. This is based on the presumption that users are best able to insure the risks, although maintenance organisations may be more capable to mitigate the risks. The risks are seldom allocated to maintenance...

  1. Study on the Maintenance Process and Supervision Points of Equipment Software%对某装备软件的一种维护流程及监督要点的研究

    Institute of Scientific and Technical Information of China (English)

    刘栋; 袁志树; 高凌云; 杨宝华; 孟庆鑫

    2015-01-01

    This paper analyzes and researches on the advantages and disadvantages of some equipment problems and new software demands in software maintenance process. Based on the theory of“a process of output is another process of input" in 9001B-2009 "quality management system requirements", it presents a software maintenance process and supervision mode, and gives reasonable process of the input, implementation and output of software maintenance, and timely proposes supervision points of customers, which can effectively regulate the software maintenance process and improve the quality of software maintenance.%本文通过对某装备问题软件类和新需求软件类在维护过程依据的优缺点进行分析研究,并基于9001B-2009《质量管理体系要求》中的“一个过程的输出就是另一个过程的输入”这个理论,提出了一种软件维护流程及监督模式,在此基础上对软件维护的输入、实施和输出贯彻三个过程进行合理的流程化,并适时提出顾客的监督要点,可有效规范软件维护流程,提高软件维护质量。

  2. Research and Development of Medical Equipment Maintenance and Management System in Medical Engineering Department%医学工程部医疗设备维修管理系统的研究与开发

    Institute of Scientific and Technical Information of China (English)

    李政; 寇向东; 余日辛; 程肃

    2013-01-01

    Objective To design and develop a medical equipment maintenance and management system (MEMMS)which is available to medical engineering department in modern hospitals. Methods The MERMS which mainly includes login module, maintenance information query module, maintenance information input module, devices maintenance information and image database module, is developed by the genuine software Delphi 7.0, Window7 operating system and Access2003 database. Results The MEMMS is convenient and flexible to operate. Compared with traditional management model, it only takes 0.5~1min to input the maintenance information. Conclusion The MEMMS overcomes inconvenience of traditional paper archives, improves the information management of medical devices in hospitals.%目的 设计并开发一套适合现代化医院医学工程部的设备维修管理系统(MEMMS).方法 应用正版编程软件Delphi7.0,基于Windows7操作系统和Access2003数据库开发MEMMS.系统主要有登陆模块、维修信息查询模块、维修信息输入模块、设备维修信息和设备图像数据库模块.结果 MEMMS操作方便、灵活,测试结果与传统管理模式对比,完成单例维修信息的录入时间仅为0.5 min.结论 MEMMS克服了传统纸质档案保存不方便等困难,为完善医院医疗设备信息化管理有一定促进作用.

  3. How to Maintenance Explosion Proof Electrical Equipment in Oil Storage%如何检修油库防爆电气设备

    Institute of Scientific and Technical Information of China (English)

    齐永生; 杨艺

    2001-01-01

    Quite a lot problems have been met in overhauling the explosion proof electrical equipment in oil storage. Basing on the practical experience, the author analyses specifically overhaul process to explosion proof electrical equipment in oil storage and sums up the problems appeared in overhaul.%本文从实际经验出发,对油库防爆电气设备的检修做了具体的分析,并总结了检修油库电气设备时应注意的问题。

  4. Study on Maintenance of Combat Readiness Medical Equipment Based on RFID Technology%基于RFID技术的战储卫生装备维护保养应用研究

    Institute of Scientific and Technical Information of China (English)

    张玉明; 葛剑徽; 谢迅雷; 李成; 李传军; 许军

    2011-01-01

    目的:研究一种基于RFID技术的战储卫生装备维护保养管理系统,为卫生装备的仓储管理和卫勤保障提供决策依据.方法:通过RFID读写器实现了对电子标签的读写,即用利射频信号通过无线传输的方式,在读写器和电子标签之间进行数据交换和目标识别.结果:建立了基于RFID技术的战储卫生装备维护保养管理系统框架模型,提出了RFID应用中需要注意解决的一些问题.结论:RFID技术可以有效解决装备分散数据采集的瓶颈问题,将RFID技术应用于战储卫生装备维护管理中.可以提高管理效率,实现战储卫生装备信息的动态管理.%Objective To study the maintenance management system for combat readiness medical equipment based on RFID in order to make a valuable reference to the warehouse management of medical equipment and the decision-making of medical organization for the further medical support. Methods Reading and writing operation was done by using the electronic tag through RFID reader which exchanged data and distinguished object between the reader and the electronic tag by using radio frequency signals via wireless transmission means. Results The model of maintenance management system based on RFID was established for the medical equipment of combat readiness. Some problems to be settled in the future were put forward based on the- discussion. Conclusion RFID technology can resolve the bottleneck problem in acquiring scattered data for the equipments. By using RFID technology in medical equipment, managing efficiency can be improved and dynamic information management of medical equipment of combat readiness can be realized.

  5. EMP simulation for equipment testing

    International Nuclear Information System (INIS)

    A bounded wave simulator is described with which digital aircraft electronics is irradiated. Irradiation findings suggest that 'operative' equipment is more sensitive to EMP. Signs of EMP influence are functional disturbances, including failure of certain sublunits. (HP)

  6. Evaluasi Jadwal Perawatan Mesin dengan Pendekatan Overall Equipment Effectiveness (OEE) untuk Melakukan Perbaikan Perawatan dengan Metode Risk Based Maintenance pada PT. Gold Coin Indonesia

    OpenAIRE

    Siahaan, Fitri Matilda

    2016-01-01

    PT. Gold Coin Indonesia merupakan perusahaan yang bergerak dalam produksi pakan ternak. PT. Gold Coin memiliki strategi desain proses manufacturing secara batch line flow, dimana produk mengalir mengikuti langkah-langkah sekuensial dalam proses produksi. Kegagalan atau kerusakan pada mesin dapat mengakibatkan delay, bahkan stagnasi pada proses produksi. Overall equipment effectiveness (OEE) merupakan merupakan ukuran yang menyeluruh yang mengindikasikan tingkat efektivitas mesin dan kinerj...

  7. 14 CFR 135.157 - Oxygen equipment requirements.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Oxygen equipment requirements. 135.157... Equipment § 135.157 Oxygen equipment requirements. (a) Unpressurized aircraft. No person may operate an unpressurized aircraft at altitudes prescribed in this section unless it is equipped with enough...

  8. Total Productive Maintenance at Paccar INC

    OpenAIRE

    Ştefan Farkas

    2010-01-01

    This paper reports the application of total productive maintenance method at Paccar Inc. truck’s plant in Victoria, Australia. The total productive maintenance method and total productive maintenance house are presented. The global equipment effectiveness is computed and exemplified. The production structure and organising maintenance are presented. Resultas of the variation of global equipment effectiveness and autonomous maintenance in a two weeks period of time are reported.

  9. 飞机维修保障信息系统权限管理设计与实现%Authority management design and realization of aircraft maintenance support information system

    Institute of Scientific and Technical Information of China (English)

    张珣; 李青; 杨志峰

    2014-01-01

    针对飞机一体化维修保障信息系统复杂的权限控制需求,在RBAC模型基础上引入了“组织”这一对象,提出了改进的权限控制模型,并通过业务逻辑将权限控制细化到具体的数据对象上,实现了细粒度的访问控制。利用该模型设计了权限管理子系统,给出了权限管理的具体实现,很好地满足了系统的权限控制需求。%Aiming at complex authority control requirements for integrated maintenance support information system of aircrafts , the object“organization”and improved model of authority control were introduced on the basis of RBAC ( Role-Based Access Control) model, and authority control are refined to specific data object by business logic, thus achieving fine-grained access control. Taking the advantage of this model, subsystem of authority management was designed and the authority management was concretely realized, well meeting the authority control requirements for the system.

  10. Research on Support Position Location of Aviation Maintenance Equipment Based on Artiifcal Immune Algorithm%基于人工免疫算法的航空机务维修器材保障点选址优化研究

    Institute of Scientific and Technical Information of China (English)

    马国岗; 王瑞成

    2014-01-01

    In order to improve the efficiency, reduce the cost of aeronautical maintenance and ensure aeronautical maintenance tasks more scientiifc, reasonable and efifciently, it's necessary to study the problem of location optimization for supporting position. Through conifrming the constraint conditions, the nonlinear programming mathematical model with complex constraints of position location optimization was established, and the population individual encoding was satisifed with the constraints by using appropriate coding scheme and penalty function, the model was optimized and solved by using immune operation. An optimization algorithm based on artiifcial immune algorithm for support position location of aviation maintenance equipment was put forward and simulated. It can achieve good effects in aeronautical maintenance position location decision-making.%为了提高航空机务维修保障效率、降低保障成本以及更加科学合理、高效地进行航空机务维修保障,有必要对保障点选址优化问题进行研究。通过明确其约束条件,建立选址优化的复杂约束的非线性规划数学模型,采用适当的编码方案和罚函数使种群个体编码满足约束条件,利用免疫操作对该模型进行优化求解,提出了基于人工免疫算法的航空机务维修器材保障点优化算法,并进行了仿真。仿真结果表明,该算法在航空机务维修器材保障点选址决策中具有很好的效果。

  11. Practical Voice Recognition for the Aircraft Cockpit Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This proposal responds to the urgent need for improved pilot interfaces in the modern aircraft cockpit. Recent advances in aircraft equipment bring tremendous...

  12. Talking about the Operation of the Substation Reactive Power Compensation Equipment Maintenance%浅谈变电站无功补偿设备的运行维护

    Institute of Scientific and Technical Information of China (English)

    谢浩南

    2014-01-01

    When the power system reactive power supply failed to meet demand, substation equipment would be difficult to make reactive power are protected, making it difficult to provide their own work when necessary electromagnetic field, and ultimately, substation equipment can’t continue to work in accordance with the rated conditions, lead to failure. Based on this, the main concept of the reactive power compensation as set forth perspective substation proposed substation reactive power compensation equipment operation and maintenance strategies for the industry reference.%当电力系统无功功率未能满足供应需求时,变电设备就难以使无功功率得到保障,从而难以提供自身正常工作时必要的电磁场,最终,变电设备不能按照额定条件继续工作,引发故障问题。基于此,主要将变电站无功补偿概念作为阐述视角,提出变电站无功补偿设备的运维策略,以供业界人士参考。

  13. 浅谈变电站无功补偿设备的运行维护%Talking about the Operation of the Substation Reactive Power Compensation Equipment Maintenance

    Institute of Scientific and Technical Information of China (English)

    谢浩南

    2014-01-01

    When the power system reactive power supply failed to meet demand, substation equipment would be difficult to make reactive power are protected, making it difficult to provide their own work when necessary electromagnetic field, and ultimately, substation equipment can’t continue to work in accordance with the rated conditions, lead to failure. Based on this, the main concept of the reactive power compensation as set forth perspective substation proposed substation reactive power compensation equipment operation and maintenance strategies for the industry reference.%当电力系统无功功率未能满足供应需求时,变电设备就难以使无功功率得到保障,从而难以提供自身正常工作时必要的电磁场,最终,变电设备不能按照额定条件继续工作,引发故障问题。基于此,主要将变电站无功补偿概念作为阐述视角,提出变电站无功补偿设备的运维策略,以供业界人士参考。

  14. Aircraft optical cable plant: the physical layer for fly-by-light control networks

    Science.gov (United States)

    Weaver, Thomas L.

    1996-10-01

    A program was completed with joint industry and government funding to apply fiber optic technologies to aircraft. The technology offers many potential benefits. Among them are increased electromagnetic interference immunity and the possibility of reduced weight, increased reliability, and enlarged capability by redesigning architectures to use the large bandwidth of fiber optics. Those benefits can be realized if fiber optics meets the unique requirements of aircraft networks. Many independent efforts have been made in the development of the systems, known as cable plants, to link opto-electronic components. The FLASH program built on that work. Over the last two years, FLASH expanded on the cable plant efforts by building components based on a cohesive aircraft plant system concept. The concept was rooted in not just optical performance, but also cost, manufacturing, installation, maintenance, and support. To do that, the FLASH team evaluated requirements, delineated environmental and use conditions, designed, built, and tested components, such as cables, connectors, splices and backplanes for transport aircraft, tactical aircraft, and helicopters. In addition, the FLASH team developed installation and test methods, and support equipment for aircraft optical cable plants. The results of that design, development, and test effort are reported here.

  15. Amphibious Aircraft

    Data.gov (United States)

    National Aeronautics and Space Administration — A brief self composed research article on Amphibious Aircrafts discussing their use, origin and modern day applications along with their advantages and...

  16. 从血透并发症谈血透设备的维护思路%Talk about the Idea of Hemodialysis Equipment Maintenance from the Hemodialysis Complications

    Institute of Scientific and Technical Information of China (English)

    彭旭

    2014-01-01

    血液透析可以有效治疗肾功能衰竭,延长患者生命,提高患者的生活质量。随着血液净化中心的建设和发展,血液透析患者得到了有效的治疗,但血透并发症却越来越多。对此,从血透并发症来探讨血透设备的维护思路。%Hemodialysis can effectively treat renal failure, prolong life and improve the quality of life of patients. With the construction and development of blood purification center hemodialysis patients receive effective treatment, but complications are more and more dialysis. In this regard, explore the ideas from complications of hemodialysis equipment maintenance hemodialysis.

  17. Concept of a programmable maintenance processor applicable to multiprocessing systems

    Science.gov (United States)

    Glover, Richard D.

    1988-01-01

    A programmable maintenance processor concept applicable to multiprocessing systems has been developed at the NASA Ames Research Center's Dryden Flight Research Facility. This stand-alone-processor is intended to provide support for system and application software testing as well as hardware diagnostics. An initial machanization has been incorporated into the extended aircraft interrogation and display system (XAIDS) which is multiprocessing general-purpose ground support equipment. The XAIDS maintenance processor has independent terminal and printer interfaces and a dedicated magnetic bubble memory that stores system test sequences entered from the terminal. This report describes the hardware and software embodied in this processor and shows a typical application in the check-out of a new XAIDS.

  18. A survey on life prediction of equipment

    Directory of Open Access Journals (Sweden)

    Hu Changhua

    2015-02-01

    Full Text Available Once in the hands of end users, such durable equipment as spacecraft, aircraft, ships, automobiles, computers, etc. are in a state of debugging, working or storage. In either state, availability, reliability and super-efficiency are the ultimate goals, which have been achieved through constant monitoring as well as regular, preventive, routine and corrective maintenance. Although some advanced instruments can visualize certain invisible malfunctioning phenomena into visible ones, deeply hidden troubles cannot be found unless monitoring and testing data are addressed using tools that process the data statistically, analytically and mathematically. Some state-of-the-art trouble-shooting and life-predicting techniques and approaches are introduced in this paper.

  19. A survey on life prediction of equipment

    Institute of Scientific and Technical Information of China (English)

    Hu Changhua; Zhou Zhijie; Zhang Jianxun; Si Xiaosheng

    2015-01-01

    Once in the hands of end users, such durable equipment as spacecraft, aircraft, ships, automobiles, computers, etc. are in a state of debugging, working or storage. In either state, avail-ability, reliability and super-efficiency are the ultimate goals, which have been achieved through constant monitoring as well as regular, preventive, routine and corrective maintenance. Although some advanced instruments can visualize certain invisible malfunctioning phenomena into visible ones, deeply hidden troubles cannot be found unless monitoring and testing data are addressed using tools that process the data statistically, analytically and mathematically. Some state-of-the-art trouble-shooting and life-predicting techniques and approaches are introduced in this paper.

  20. 14 CFR 135.419 - Approved aircraft inspection program.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Approved aircraft inspection program. 135.419 Section 135.419 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Maintenance, Preventive Maintenance, and Alterations § 135.419 Approved aircraft inspection program....

  1. 14 CFR 125.245 - Organization required to perform maintenance, preventive maintenance, and alteration.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Organization required to perform maintenance, preventive maintenance, and alteration. 125.245 Section 125.245 Aeronautics and Space FEDERAL... GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance § 125.245 Organization required to perform...

  2. Exploration on the Method of Improving the Teaching Quality of Equipment Electrical Control and Maintenance%提高《设备电气控制与维修》教学质量的方法探究

    Institute of Scientific and Technical Information of China (English)

    孙长永

    2013-01-01

      针对未来学生的就业形势,对于掌握电气控制方面的技术和知识是非常重要的。尤其是对于机电类专业的学生,可以学以致用。学生具备电气控制与维修的基本知识和基本技能,初步形成解决实际问题的能力,逐步培养学生的职业技能,提高全面素质,增强适应职业变化的能力。所以《设备电气控制与维修》是一门实践性很强的学科。%  Based on the employment situation for prospective students, it is very important to master the skills and knowledge of electrical control, especially for students of mechanical and electrical major, it can help them apply what they have learned. If students has basic knowledge and basic skills for electrical control and maintenance, they can initially form the ability to solve practical problems, gradually develop professional skills, improve overall quality, and enhance the ability to adapt to job changes. Equipment Electrical Control and Maintenance is a very practical subject.

  3. Pressure Test Replacing Alternative Methods for Special Maintenance Equipment in Processing during Updating%特种设备维修改造过程中压力试验最优方案探讨

    Institute of Scientific and Technical Information of China (English)

    刘民; 宫振海

    2012-01-01

    在对压力容器、压力管道特种设备维修改造中,一般仅对设备本体做局部处理,按照施工规范却要进行压力试验,对体积小、易操作、施工期长的设备可以进行整体试验,但对体积大、工期要求紧迫的设备,进行整体试验需要大量人力、物力,且实际意义不大.依据有关规范并结合现场实际情况,对特种设备局部维修后进行的压力试验最优方案进行了探讨,对维修改造施工有借鉴意义.%During maintenance of boiler, pressure vessel and pipeline, normally the equipment only was locally treated, according to specification, the small, easy operation and long construction ones could be treated in whole body. But for the large and short construction ones, the whole body treatment requires large number of labor and material with less significance. Based on specification and practical condition, the alternative method was studied, which could be reference for such maintenance.

  4. Aircraft Noise

    Science.gov (United States)

    Michel, Ulf; Dobrzynski, Werner; Splettstoesser, Wolf; Delfs, Jan; Isermann, Ullrich; Obermeier, Frank

    Aircraft industry is exposed to increasing public pressure aiming at a continuing reduction of aircraft noise levels. This is necessary to both compensate for the detrimental effect on noise of the expected increase in air traffic and improve the quality of living in residential areas around airports.

  5. Aircraft Design

    Science.gov (United States)

    Bowers, Albion H. (Inventor); Uden, Edward (Inventor)

    2016-01-01

    The present invention is an aircraft wing design that creates a bell shaped span load, which results in a negative induced drag (induced thrust) on the outer portion of the wing; such a design obviates the need for rudder control of an aircraft.

  6. TCMS operations and maintenance philosophy

    Science.gov (United States)

    Buehler, David P.; Griffin, Rock E.

    1992-01-01

    The purpose is to describe the basic philosophies of operating and maintaining the Test, Control, and Monitor System (TCMS) equipment. TCMS is a complex and sophisticated checkout system. Operations and maintenance processes developed to support it will be based upon current experience, but will be focused on the specific needs of TCMS in support of Space Station Freedom Program (SSFP) and related activities. An overview of the operations and maintenance goals and philosophies are presented. The assumptions, roles and responsibilities, concepts and interfaces for operation, on-line maintenance, off-line support, and Operations and Maintenance (O&M) personnel training on all TCMS equipment located at KSC are described.

  7. 21 CFR 606.60 - Equipment.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 7 2010-04-01 2010-04-01 false Equipment. 606.60 Section 606.60 Food and Drugs... GOOD MANUFACTURING PRACTICE FOR BLOOD AND BLOOD COMPONENTS Equipment § 606.60 Equipment. (a) Equipment... maintenance. The equipment shall be observed, standardized and calibrated on a regularly scheduled basis...

  8. 21 CFR 226.30 - Equipment.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 4 2010-04-01 2010-04-01 false Equipment. 226.30 Section 226.30 Food and Drugs... Facilities and Equipment § 226.30 Equipment. Equipment used for the manufacture, processing, packaging, bulk... facilitate maintenance and operation for its intended purpose. The equipment shall: (a) Be so...

  9. Research on selection of preventive maintenance training tasks for medical equipments%医疗设备预防性维护培训科目的选择研究

    Institute of Scientific and Technical Information of China (English)

    魏建新; 张叙天; 张强; 刘胜林

    2015-01-01

    This paper studied the selection of training tasks of medical equipment preventive maintenance,to provide theoretical basis for standardized training design.Eight tasks of medical equipment PM process were quantitatively analyzed in multi factors based on the AHp and MFM,and the CDF decision trees model was compared with the selection standard.The studied identified the selection standards and criteria of the tasks,as well as reliable theoretical references for building the standardized training system.%对医疗设备预防性维护的培训科目进行选择研究,对设计规范化教学培训系统提供理论依据.运用多因素模型(MFM)和层次分析法(AHP)构建选择方法,对8项医疗设备预防性维护的培训科目的选择进行多因素定量分析,并结合CDF决策树定性模型对选择标准进行对照.研究得出了培训科目的选择方法与标准,对规范化培训系统的构建提供可靠的理论依据.

  10. Improved portable lighting for visual aircraft inspection

    Energy Technology Data Exchange (ETDEWEB)

    Shagam, R.N. [Sandia National Lab., Albuquerque, NM (United States); Lerner, J.; Shie, R. [Physical Optics Corp., Torrance, CA (United States)

    1995-04-01

    The most common tool used by aircraft inspectors is the personal flashlight. While it is compact and very portable, it is generally typified by poor beam quality which can interfere with the ability for an inspector to detect small defects and anomalies, such as cracks and corrosion sites, which may be indicators of major structural problems. A Light Shaping Diffuser{trademark} (LSD) installed in a stock flashlight as a replacement to the lens can improve the uniformity of an average flashlight and improve the quality of the inspection. Field trials at aircraft maintenance facilities have demonstrated general acceptance of the LSD by aircraft inspection and maintenance personnel.

  11. Improved portable lighting for visual aircraft inspection

    Science.gov (United States)

    Shagam, Richard N.; Lerner, Jeremy M.; Shie, Rick

    1995-07-01

    The most common tool used by aircraft inspectors is the personal flashlight. While it is compact and very portable, it is generally typified by poor beam quality which can interfere with the ability for an inspector to detect small defects and anomalies, such as cracks and corrosion sites, which may be indicators of major structural problems. A Light Shaping Diffuser TM (LSD) installed in a stock flashlight as a replacement to the lens can improve the uniformity of an average flashlight and improve the quality of the inspection. Field trials at aircraft maintenance facilities have demonstrated general acceptance of the LSD by aircraft inspection and maintenance personnel.

  12. 基于RCM的雷达装备维修决策支持系统研究%Study on radar equipment maintenance decision support system based on RCM

    Institute of Scientific and Technical Information of China (English)

    黄建军; 杨江平; 张新生

    2011-01-01

    针对传统RCM(reliability ntered maintenance)分析存在的信息利用不充分、缺乏模型支持及实施过程不够完整等不足,提出了雷达装备RCM分析的信息化改进思路.在分析了改进的RCM过程模型基础上,设计出雷达装备维修决策支持系统.以数据的充分利用和模型的合理支持为核心,描述了系统的逻辑全貌.基于分布式网络技术和面向服务软件技术构建了开放式、智能化的系统应用体系构架.原型系统开发结果表明,该方案能充分利用各类有用信息,在相关模型支持下,实现更规范、更快捷、更准确的装备维修分析与决策.%According to the problems of traditional RCM (reliability centered maintenance) analysis existing insufficient use of information, lack of model support, incomplete implementation process and so on, an information improvement idea of radar RCM is proposed. Based on the process model of the improved RCM, radar equipment maintenance decision support system is designed. Around the full use of the dates and the reasonable support of analysis models, the system's logical picture is described. On the basis of distributed network technology and service-oriented software technology, the open, intelligent system application architecture is established. The developed prototype system shows that this design can make full use of all kinds of information and support in the relevant models, to achieve more standardized, more efficient, more accurate analysis and decision for radar maintenance.

  13. Preventive Maintenance Process

    Science.gov (United States)

    Ciaruffoli, Veronica; Bramley, Craig; Matteson, Mike

    2001-01-01

    The Preventive Maintenance (PM) program at Stennis Space Center (SSC) evolved from an ineffective and poorly organized state to a highly organized state in which it became capable of tracking equipment, planning jobs with man hour estimates, and supporting outsourcing. This viewgraph presentation traces the steps the program took to improve itself.

  14. 14 CFR 121.709 - Airworthiness release or aircraft log entry.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airworthiness release or aircraft log entry... Airworthiness release or aircraft log entry. (a) No certificate holder may operate an aircraft after maintenance... appropriate entry in the aircraft log. (b) The airworthiness release or log entry required by paragraph (a)...

  15. Deployment maintenance strategy for the development of maintenance personnel in Irish and Malaysian automated manufacturing industries

    OpenAIRE

    Othman, Jamel

    2006-01-01

    In order to ensure that a manufacturing company is able to achieve the optimum productivity and equipment reliability, an effective maintenance system must be implemented. However it is very important to realize that the maintenance employee involvement is a critical factor in the maintenance implementation stage. An effective maintenance requires an understanding of the link between the maintenance and maintenance employee involvement. As such, there is a need for empirical research on the d...

  16. Structural integrity in aircraft.

    Science.gov (United States)

    Hardrath, H. F.

    1973-01-01

    The paper reviews briefly the current design philosophies for achieving long, efficient, and reliable service in aircraft structures. The strengths and weaknesses of these design philosophies and their demonstrated records of success are discussed. The state of the art has not been developed to the point where designing can be done without major test inspection and maintenance programs. A broad program of research is proposed through which a viable computerized design scheme will be provided during the next decade. The program will organize and correlate existing knowledge on fatigue and fracture behavior, identify gaps in this knowledge, and guide specific research to upgrade design capabilities.

  17. Improving industrial maintenance contract relationships

    NARCIS (Netherlands)

    De Jong, A.

    2010-01-01

    Unavailability of technical systems, such as aircraft, is expensive. Technical systems require maintenance to prevent and to remedy defects that cause unavailability. Users of technical systems usually bear the consequences of the risk of unavailability, in particular the loss of productivity. This

  18. The Method of Mission Oriented Maintenance

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    In a real application, equipment in good condition sometimes have to be repairedbecause the equipment does not satisfy the requirements of the mission; However, it is notnecessary to repair some equipment with failures because the failures do not affect the mission completion. In these cases, maintenance activity guided by present maintenance methodsmay sometimes affect the mission completion in time or bring about extra maintenance. To overcome the shortage of present maintenance methods, we propose an idea and method of missionoriented maintenance (MOM) to deal with the maintenance policy on these kinds of problems. This method can work out different maintenance policies corresponding to differentmissions with full consideration of missions and mission requirements for the equipment.

  19. 14 CFR 135.145 - Aircraft proving and validation tests.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Aircraft proving and validation tests. 135... Aircraft and Equipment § 135.145 Aircraft proving and validation tests. (a) No certificate holder may... safely and in compliance with applicable regulatory standards. Validation tests are required for...

  20. 基于WSR和LSS的装甲装备维修质量管理模式%Quality Management Mode of Armored Equipment Maintenance Based on WSR and LSS

    Institute of Scientific and Technical Information of China (English)

    叶红兵; 陈春良; 吕会强; 汤珏

    2011-01-01

    Closely focusing on the requirement of equipment support transformation,the paper introduces WuLi-ShiLi-RenLi(WSR) system methodology and Lean Six Sigma(LSS) management theory and puts forward a total system and integrated management mode for armored equipment maintenance quality.And on the view of WSR and LSS management,it expatiates the basic thought of the management mode,and analyzes its basic characteristics in detail.And in terms of LSS management mode,the paper particularly discourses its management tasks as a whole,and the basic management modes in cooperation with the logic process of WSR and LSS.%紧贴装备保障转型的需求,引进物理-事理-人理(WuLi-ShiLi-RenLi,WSR)系统方法论与精益六西格玛(Lean Six Sigma,LSS)管理理论,提出一种装甲装备维修质量全系统综合管理模式。从WSR与LSS管理的角度,阐述了这种管理模式的基本思想,详细分析了其基本特点;依据LSS管理模式,从整体上详细论述了装甲装备维修质量管理包含的内容;结合WSR与LSS的逻辑过程,论述了其基本管理方式。

  1. 14 CFR 29.1353 - Electrical equipment and installations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Electrical equipment and installations. 29... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT Equipment Electrical Systems and Equipment § 29.1353 Electrical equipment and installations. (a) Electrical equipment, controls, and...

  2. 14 CFR 25.1353 - Electrical equipment and installations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Electrical equipment and installations. 25... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES Equipment Electrical Systems and Equipment § 25.1353 Electrical equipment and installations. (a) Electrical equipment and controls must...

  3. Soviet equipment flies in

    CERN Multimedia

    1978-01-01

    End of February 1977 a Soviet Ilyushin-76 heavy freight aircraft landed at Cointrin airport having on board fifty large wire proprtional chambers and associated apparatus, together weighing 10 tons, supplied by the Joint Institute for Nuclear Research, Dubna, USSR. The equipment was for the CERN- Dubna-Munich-Saclay experiment NA4 on deep inelastic muon scattering being set up in the North Area of SPS. See Weekly Bulletin 11/78.

  4. Composite components on commercial aircraft

    Science.gov (United States)

    Dexter, H. B.

    1980-01-01

    The paper considers the use of composite components in commercial aircraft. NASA has been active in sponsoring flight service programs with advanced composites for the last 10 years, with 2.5 million total composite component hours accumulated since 1970 on commercial transports and helicopters with no significant degradation in residual strength of composite components. Design, inspection, and maintenance procedures have been developed; a major NASA/US industry technology program has been developed to reduce fuel consumption of commercial transport aircraft through the use of advanced composites.

  5. Smart fastener technology for aging aircraft

    Science.gov (United States)

    Schoess, Jeffrey N.; Paul, Clare A.

    1995-04-01

    Hidden and inaccessible corrosion in aircraft structures is the number 1 logistics problem for the Air Force, with an estimated maintenance cost of greater than one billion dollars per year. The smart aircraft fastener evaluation (SAFE) system is being developed to detect and characterize corrosion factors in hidden locations of aircraft structures. The SAFE concept is a novel `in-situ' measurement approach that measures and autonomously records several environmental factors (i.e., pH, temperature, chloride) associated with corrosion. The SAFE system integrated an electrochemical-based microsensor array directly into the aircraft structure to measure the evidence of active corrosion as an in-situ measurement without reducing aircraft structural integrity. The long term-payoff for the SAFE system will be in predictive maintenance for fixed and rotary wing aircraft structures, industrial tanks, and fugitive emissions applications such as control valves, chemical pipeline vessels, and industrial boilers. Predictive maintenance capability, service and repair will replace the current practice of scheduled maintenance to substantially reduce operational costs.

  6. Professional training for hygienic and sanitation maintenance of systems and equipments with risk of legionelosis Capacitación del personal que realiza las operaciones de mantenimiento higiénico-sanitario de las instalaciones de riesgo frente a Legionella

    Directory of Open Access Journals (Sweden)

    Milagros Fernández de Lezeta Sáez de Jáuregui

    2006-12-01

    Full Text Available Training for technicians in charge of maintenance, cleaning and disinfection of the equipment and installations that could be amplify and spread Legionella need to be checked and updated. This revision must to be done keeping with the kind of tasks performed and requested knowledges for technicians.In the following lines there is an analysis about the present training and ANECPLA proposes different levels based on its training experience and skills need by technicians to prevent and control legionnaires’ disease.La formación del personal técnico dedicado a las tareas de mantenimiento, limpieza y desinfección de equipos e instalaciones de riesgo frente a Legionella requiere una revisión y actualización que debe ser realizada teniendo en cuenta el tipo de tareas desempeñadas y conocimientos exigidos para su desarrollo.En este artículo se hace un análisis sobre la formación actual y se proponen diferentes niveles de capacitación en base a los criterios y experiencia que ANECPLA posee en materia de formación y conocimiento de las habilidades que se tienen que desarrollar en el trabajo de prevención y control de legionelosis.

  7. Proceedings of the fourth international conference on CANDU maintenance

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    These proceedings record the information presented at the 4th International Conference on CANDU Maintenance held November 16-18,1997 in Toronto, Canada. The papers for these proceedings were prepared on component maintenance, human performance, steam generator leak detection, fuel channel inspections, rotating equipment maintenance, surveillance programs, inspection techniques, valve maintenance, steam generator repairs and performance, reactor aging management and preventative maintenance.

  8. Proceedings of the fourth international conference on CANDU maintenance

    International Nuclear Information System (INIS)

    These proceedings record the information presented at the 4th International Conference on CANDU Maintenance held November 16-18,1997 in Toronto, Canada. The papers for these proceedings were prepared on component maintenance, human performance, steam generator leak detection, fuel channel inspections, rotating equipment maintenance, surveillance programs, inspection techniques, valve maintenance, steam generator repairs and performance, reactor aging management and preventative maintenance

  9. Maintenance Process Strategic Analysis

    Science.gov (United States)

    Jasiulewicz-Kaczmarek, M.; Stachowiak, A.

    2016-08-01

    The performance and competitiveness of manufacturing companies is dependent on the availability, reliability and productivity of their production facilities. Low productivity, downtime, and poor machine performance is often linked to inadequate plant maintenance, which in turn can lead to reduced production levels, increasing costs, lost market opportunities, and lower profits. These pressures have given firms worldwide the motivation to explore and embrace proactive maintenance strategies over the traditional reactive firefighting methods. The traditional view of maintenance has shifted into one of an overall view that encompasses Overall Equipment Efficiency, Stakeholders Management and Life Cycle assessment. From practical point of view it requires changes in approach to maintenance represented by managers and changes in actions performed within maintenance area. Managers have to understand that maintenance is not only about repairs and conservations of machines and devices, but also actions striving for more efficient resources management and care for safety and health of employees. The purpose of the work is to present strategic analysis based on SWOT analysis to identify the opportunities and strengths of maintenance process, to benefit from them as much as possible, as well as to identify weaknesses and threats, so that they could be eliminated or minimized.

  10. Distributed Maintenance Error Information, Investigation and Intervention

    OpenAIRE

    Zolla, George; Boex, Tony; Flanders, Pat; Nelson, Doug; Tufts, Scott; Schmidt, John K.

    2001-01-01

    This paper describes a safety information management system designed to capture maintenance factors that contribute to aircraft mishaps. The Human Factors Analysis and Classification System-Maintenance Extension taxonomy (HFACS-ME), an effective framework for classifying and analyzing the presence of maintenance errors that lead to mishaps, incidents, and personal injuries, is the theoretical foundation. An existing desktop mishap application is updated, a prototype we...

  11. Renewal of radiological equipment.

    Science.gov (United States)

    2014-10-01

    In this century, medical imaging is at the heart of medical practice. Besides providing fast and accurate diagnosis, advances in radiology equipment offer new and previously non-existing options for treatment guidance with quite low morbidity, resulting in the improvement of health outcomes and quality of life for the patients. Although rapid technological development created new medical imaging modalities and methods, the same progress speed resulted in accelerated technical and functional obsolescence of the same medical imaging equipment, consequently creating a need for renewal. Older equipment has a high risk of failures and breakdowns, which might cause delays in diagnosis and treatment of the patient, and safety problems both for the patient and the medical staff. The European Society of Radiology is promoting the use of up-to-date equipment, especially in the context of the EuroSafe Imaging Campaign, as the use of up-to-date equipment will improve quality and safety in medical imaging. Every healthcare institution or authority should have a plan for medical imaging equipment upgrade or renewal. This plan should look forward a minimum of 5 years, with annual updates. Teaching points • Radiological equipment has a definite life cycle span, resulting in unavoidable breakdown and decrease or loss of image quality which renders equipment useless after a certain time period.• Equipment older than 10 years is no longer state-of-the art equipment and replacement is essential. Operating costs of older equipment will be high when compared with new equipment, and sometimes maintenance will be impossible if no spare parts are available.• Older equipment has a high risk of failure and breakdown, causing delays in diagnosis and treatment of the patient and safety problems both for the patient and the medical staff.• Every healthcare institution or authority should have a plan for medical imaging equipment upgrade or replacement. This plan should look forward a

  12. Reliability centred maintenance - an overview in Indian PHWR context

    International Nuclear Information System (INIS)

    Over the last few decades, attitude and approach to maintenance has changed very rapidly together with new maintenance techniques, growing awareness of effect of equipment failure on safety and environment and increasing pressure to achieve high plant availability and to contain cost. Broadly, the approach and technique for maintenance are categorized in four groups viz. reactive maintenance, preventive maintenance, predictive maintenance and finally, the latest concept of Reliability Centered Maintenance (RCM). While the reactive maintenance is basically 'run it till it breaks' mode is an old concept for maintenance. In preventive maintenance either a time based schedule or a schedule based on that of machine run time. The goal here is to minimize system and component degradation and thus, sustain or extend the useful life of the equipment. A predictive maintenance approach strives to detect the onset of equipment degradation and differs from preventive by basing maintenance needs on the actual condition of equipment rather than some predetermined schedule. Finally, the Reliability Centered Maintenance (RCM) is the maintenance approach used when following a process that assesses equipment condition and determines the maintenance requirement in operating context. This paper brings out a case study of Reliability Centred Maintenance Technique carried out for Indian PHWR highlighting various aspects of RCM and application of the same. Though this technique of maintenance is not strictly followed presently. This can improve maintenance approach in future. (author)

  13. Light shaping diffusers{trademark} improve aircraft inspection

    Energy Technology Data Exchange (ETDEWEB)

    Shagam, R.N. [Sandia National Labs., Albuquerque, NM (United States); Shie, R.; Lerner, J. [Physical Optics Corp., Torrance, CA (United States)

    1994-11-01

    Physical Optical Corporation has introduced a Light Shaping Diffuser{trademark} (LSD) for the specialized illumination requirements of aircraft inspection. Attached to a handheld, battery-powered flashlight, this light-weight, holographic diffuser element provides bright, even illumination as aircraft inspectors perform the important task of visually examining aircraft for possible structural defects. Field trials conducted by the Aging Aircraft Program at Sandia National Laboratories confirm that the LSD-equipped flashlights are preferred by visual inspectors over stock flashlights.

  14. Perspectives of civil aircraft avionics development

    OpenAIRE

    Наумов, А. В.

    1999-01-01

    Considered are main directions for civil avionics development. General requirements for airborne equipment functions. Analysis of airborne avionics selection per architecture and economical effectiveness in made. Proposed is the necessity of new approach to integrated avionics complex design, first of all, on basis of mathematical method for aircraft equipment and technical characteristics definition

  15. Aircraft cybernetics

    Science.gov (United States)

    1977-01-01

    The use of computers for aircraft control, flight simulation, and inertial navigation is explored. The man-machine relation problem in aviation is addressed. Simple and self-adapting autopilots are described and the assets and liabilities of digital navigation techniques are assessed.

  16. 47 CFR 87.69 - Maintenance tests.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Maintenance tests. 87.69 Section 87.69... Operating Requirements and Procedures Operating Requirements § 87.69 Maintenance tests. The licensee may make routine maintenance tests on equipment other than emergency locator transmitters if there is...

  17. Collaborative learning in condition based maintenance

    NARCIS (Netherlands)

    Koochaki, J.; Ao, SI; Gelman, L; Hukins, DWL; Hunter, A; Korsunsky, AM

    2009-01-01

    In recent years, the importance of reliable and consistent production equipments has increased. As a result, companies are shifting their maintenance policy from preventive maintenance towards Condition Based Maintenance (CBM). Despite the growing trend in this area and success stories of CBM implem

  18. Sensitivity analysis and parameters optimization for equipment maintenance support simulation system%装备维修保障仿真系统灵敏度分析与参数优化

    Institute of Scientific and Technical Information of China (English)

    杨英杰; 于永利; 张柳; 张伟

    2016-01-01

    针对装备维修保障仿真系统的灵敏度分析与参数优化问题,提出了基于仿真实验手段的应用研究框架。在分析装备维修保障仿真系统建模方法的基础上,提出了基于仿真实体的输入参数确定方法;从战备完好、任务成功以及维修保障系统级等多角度分析明确了输出评价参数;研究了基于分支定界法的关键输入参数筛选方法和基于正交表的输入参数抽样实验设计方法;研究了基于极差分析和方差分析的灵敏度分析方法原理,并提出了一种基于方差分析的输入参数优化方法。最后利用开发的灵敏度分析工具进行了算例验证,表明所提方法具有很好的工程实用价值。%Aim at the problem of sensitivity analysis and parameters optimization for equipment maintenance support simulation system,the application research framework based on the simulation experimental means is proposed.In analyzing the simulation system modeling method basis,the obtaining method of the input parame-ters based on simulation entity is proposed.At the same time,the simulation output parameters is determined considering the operational readiness,sustainability and maintenance support system level.The key inputs screening method based on sequential bifurcation,and the sampling experimental design method of the inputs based on the orthogonal array are studied.The sensitivity analysis principle based on the range analysis and va-riance analysis is researched.On the basis of variance analysis,a new method of input parameters optimization is proposed.Finally,the software tool developed for sensitivity analysis is used to do an practical example.The result shows that the methods proposed above are of good engineering value.

  19. Training Effect Evaluation of Equipment Maintenance Support Serviceman Based on Interval Number and Extension Theory%基于区间数与可拓理论的装备维修保障人员训练效果评估

    Institute of Scientific and Technical Information of China (English)

    崔凯旋; 石全; 胡起伟; 张文宇; 王业

    2013-01-01

    Aiming at the quantify analysis and train grade judgment of equipment maintenance support serviceman, the serviceman training effect evaluation system was established based on interval number and extension theory. Combine serviceman training actual characteristics and requirements, use extension theory to establish matter element evaluation model. Based on knowledge level, operation ability, equipment efficiency conditions, personnel quality and working performance, taking interval number as attribute evaluation, the main indicator data was quantified. The matter element weight indexes were confirmed through AHP method. The matter element correlative function was established. The serviceman training effect is evaluated by using the superior degree evaluation method and index rating statistics situation. The analysis result shows that the system is accurate and comprehensive, it can provide reference to training effect evaluation.%  针对部队装备维修保障人员的训练效果进行定量分析和等级划分,建立一种基于区间数与可拓理论的装备维修保障人员训练效果评估体系。结合装备维修保障人员训练实际特点和要求,利用可拓理论构建物元评估模型,从知识水平、岗位能力、装备效能情况、人员素质和工作表现等方面出发,采用区间数为属性取值,对其主要指标数据进行量化处理,利用层次分析法确定物元各指标的权重系数,建立物元关联函数,并利用优度评价法和各子指标等级统计情况对装备维修人员训练效果进行评估。分析二级效果表明,该体系准确客观,可为训练效果的评估提供参考。

  20. Evaluation of Equipment System Availability for Multi-echelon Maintenance Supply with Cannibalization%串件拼修对策下多级维修供应的装备系统可用度评估

    Institute of Scientific and Technical Information of China (English)

    阮旻智; 李庆民; 彭英武; 黄傲林; 王慎

    2012-01-01

    Cannibalization policy is an effective approach to improve support effectiveness. Under the current support condition, it can make equipment availability reach the upper limit. This paper establfshs respectively availability models of a non-cannibalization system, a cannibalization system and a partial cannibalization system under the mode of multi-echelon maintenance supply In accordance with the characteristics of cannibalization combined with multi-echelon technique for recoverable item controK METRIC) theory. The analysis flow and method of support effectiveness are studied. In a given example, The initial spare parts inventory project is obtained under which the equipment availability is analyzed with different cannibalization policies. VMETRIC simulation is used to test the results, and the verification shows that there is high consistency between the two results, which proves the validity of the model.%实施串件拼修对策是提高装备保障效能的有效途径,能够在现有保障条件下使装备可用度达到上限.针对该问题,在备件多级维修供应模式下,根据串件拼修的特点,并结合可修复备件库存分配建模理论(METRIC),建立了非串件系统、串件系统以及不完全串件系统可用度评估模型.研究了串件对策下装备保障效能的分析流程和方法.通过实验设计,确定初始备件库存方案,在给定的方案下,对不同串件对策下装备的可用度进行评估.采用VMETRIC平台对模型进行验证,结果表明,本文模型结果与VMETRIC仿真结果具有相当高的吻合度,证明了模型的正确性.

  1. ITER assembly and maintenance

    International Nuclear Information System (INIS)

    This document is intended to describe the work conducted by the ITER Assembly and Maintenance (A and M) Design Unit and the supporting home teams during the ITER Conceptual Design Activities, carried out from 1988 through 1990. Its content consists of two main sections, i.e., Chapter III, which describes the identified tasks to be performed by the A and M system and a general description of the required equipment; and Chapter IV, which provides a more detailed description of the equipment proposed to perform the assigned tasks. A two-stage R and D program is now planned, i.e., (1) a prototype equipment functional tests using full scale mock-ups and (2) a full scale integration demonstration test facility with real components (vacuum vessel with ports, blanket modules, divertor modules, armor tiles, etc.). Crucial in-vessel and ex-vessel operations and the associated remote handling equipment, including handling of divertor plates and blanket modules will be demonstrated in the first phase, whereby the database needed to proceed with the engineering phase will be acquired. The second phase will demonstrate the ability of the overall system to execute the required maintenance procedures and evaluate the performance of the prototype equipment

  2. 14 CFR 43.5 - Approval for return to service after maintenance, preventive maintenance, rebuilding, or alteration.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Approval for return to service after maintenance, preventive maintenance, rebuilding, or alteration. 43.5 Section 43.5 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE...

  3. Proposta de uma metodologia para avaliação de defeitos de soldadura na manutenção de equipamentos sob pressão Proposed methodology to evaluate welding defects during maintenance of equipments under pressure

    Directory of Open Access Journals (Sweden)

    Paulo Silva

    2011-06-01

    Full Text Available A utilização de técnicas avançadas de controlo não destrutivo como o Time of Flight Detection (ToFD e o Phased Array para inspeção em manutenção de reservatórios de pressão permite a caracterização de numerosos defeitos não detectados durante a construção, como defeitos planares, cuja detecção por radiografia depende da sua orientação. Estas técnicas têm conduzido a um aumento substancial da fiabilidade dos equipamentos, uma vez que a detecção de defeitos num estágio inicial de desenvolvimento permite planear as intervenções, reduzir paragens e tempos não produtivos. Os defeitos de fabrico são identificados nas inspeções de manutenção pelo fato das técnicas usadas serem mais precisas e as áreas inspecionadas maiores do que as requeridas após construção. Alguns defeitos são facilmente classificados como tendo origem no fabrico e construção, mas outros não conseguem distinguir-se dos provocados pelas condições de serviço. Neste sentido, a decisão importante a tomar é a de avaliar se a evolução do defeito é possível de ocorrer, baseada no conhecimento das condições de serviço, do material, da dimensão e localização do defeito. Este artigo pretende fazer uma proposta de metodologia de avaliação de defeitos baseada num conjunto substancial de casos industriais de modo a apoiar o pessoal técnico nas fases de decisão em manutenção, inspeção e reparação de defeitos em juntas soldadas em reservatórios de pressão de processo.The use of advanced non-destructive techniques like ToFD and Phased Array to perform maintenance inspections of pressure vessels enables the characterization of numerous defects not detectable during the construction, as planar defects, whose detection by radiography is highly dependent on its orientation. These techniques lead to a substantial increase in reliability of equipments, since, the early detection of defects under development allows the planning of

  4. Dairy Equipment Lubrication

    Science.gov (United States)

    1978-01-01

    Lake To Lake Dairy Cooperative, Manitowoc, Wisconsin, operates four plants in Wisconsin for processing milk, butter and cheese products from its 1,300 member farms. The large co-op was able to realize substantial savings by using NASA information for improved efficiency in plant maintenance. Under contract to Marshall Space Flight Center, Midwest Research Institute compiled a handbook consolidating information about commercially available lubricants. The handbook details chemical and physical properties, applications, specifications, test procedures and test data for liquid and solid lubricants. Lake To Lake's plant engineer used the handbook to effect savings in maintenance labor and materials costs by reducing the number of lubricants used on certain equipment. Strict U.S. Department of Agriculture and Food and Drug Administration regulations preclude lubrication changes n production equipment, but the co-op's maintenance chief was able to eliminate seven types of lubricants for ancillary equipment, such as compressors and high pressure pumps. Handbook data enabled him to select comparable but les expensive lubricants in the materials consolidation process, and simplified lubrication schedules and procedures. The handbook is in continuing use as a reference source when a new item of equipment is purchased.

  5. Optimal use of German Army maintenance resources

    OpenAIRE

    Wellbrink, Joerg

    1998-01-01

    Approved for public release; distribution is unlimited The German Army's maintenance branch has lost 25 percent of its soldiers since the end of the cold war. The maintenance branch has insufficient military personnel within maintenance units to maintain all combat unit equipment. The Army, therefore, purchases civilian man hours (mhrs) to satisfy some required maintenance. This thesis develops a mixed integer linear program, named ADOPT (administrative order optimizer), to optimally assig...

  6. Maintenance: problem and solution

    CERN Multimedia

    CERN Bulletin

    2012-01-01

    Equipment that is often unique, machines that are as old as the Laboratory, continuous and demanding performance requirements: these are the challenges faced by CERN’s accelerator maintenance teams. There are some twenty such teams, attached to different departments. A new project aims to standardise their procedures to make their work easier, and you can be a part of it.   “For the past year or so, the Accelerator and Technologies Sector and the GS Department have been working together on identifying the needs of the different teams that perform maintenance on CERN’s equipment. We are now ready to provide computer support with detailed specifics about the processes that need to be set up,” explains Goran Perinić, one of the leaders in CERN’s new Maintenance Management project (MMP). Since the LHC entered operation, the responsibilities of the technical teams have been broadened to cover maintenance of the collider and that of its injectors...

  7. Maintenance management

    International Nuclear Information System (INIS)

    Maintenance program of nuclear power plant (NPP) was decided by safety and economics. Safety was not always compatible with economics. Management of NPP's maintenance was to adjust and promote maintenance action taking into account of economics and safety. From securities report from 2000 to 2002 fiscal year, generation cost of NPP was calculated 8.3 Yen/kWh (capacity factor=78%) compared with 10.0 Yen/kWh (capacity factor=41%) of thermal power. Reduction or suppression of generation cost requested to reduce fuel and operation and maintenance cost or to increase power generation capacity. Increase of operating years and upgrade of capacity factor contributed to reduce generation cost and then aging measures for lifecycle extension of NPP was important as well as securing high capacity factor without failures or troubles of NPP with adequate maintenance action. Maintenance program was arranged to decide scope of inspection and repair and measures based on evaluated data. Use of risk information was recommended for reliable maintenance. Safety, quality assurance and schedule of maintenance work were supervised as well as radiation protection and occupational safety. (T. Tanaka)

  8. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airborne weather radar equipment... Aircraft and Equipment § 135.175 Airborne weather radar equipment requirements. (a) No person may operate a... conditions that can be detected with airborne weather radar equipment, may reasonably be expected along...

  9. Developing Reliability Based Maintenance Software for Enhancing Maintenance Performance and Aging Management

    International Nuclear Information System (INIS)

    The software of Reliability based Maintenance had been developed for maintenance and ageing maintenance purposes. The program generates information on component boundary, specification, manufacture, maintenance history, failure data, availability and degradation or ageing trend of research reactor components for use of maintenance manager for evaluating. The program was established by analyzing an existing system and designing a system that could enhance the effectiveness of the maintenance. As reference of evaluation, the program was equipped with calculation of failure rate, MTTF, MTTR, FMEA, and Root cause analysis. By using this program technician and manager could easily know status of component weather they suffer from frequent failure or degradation tendency and recommend preventive maintenance. (author)

  10. Turboprop aircraft against terrorism: a SWOT analysis of turboprop aircraft in CAS operations

    Science.gov (United States)

    Yavuz, Murat; Akkas, Ali; Aslan, Yavuz

    2012-06-01

    Today, the threat perception is changing. Not only for countries but also for defence organisations like NATO, new threat perception is pointing terrorism. Many countries' air forces become responsible of fighting against terorism or Counter-Insurgency (COIN) Operations. Different from conventional warfare, alternative weapon or weapon systems are required for such operatioins. In counter-terrorism operations modern fighter jets are used as well as helicopters, subsonic jets, Unmanned Aircraft Systems (UAS), turboprop aircraft, baloons and similar platforms. Succes and efficiency of the use of these platforms can be determined by evaluating the conditions, the threats and the area together. Obviously, each platform has advantages and disadvantages for different cases. In this research, examples of turboprop aircraft usage against terrorism and with a more general approach, turboprop aircraft for Close Air Support (CAS) missions from all around the world are reviewed. In this effort, a closer look is taken at the countries using turboprop aircraft in CAS missions while observing the fields these aircraft are used in, type of operations, specifications of the aircraft, cost and the maintenance factors. Thus, an idea about the convenience of using these aircraft in such operations can be obtained. A SWOT analysis of turboprop aircraft in CAS operations is performed. This study shows that turboprop aircraft are suitable to be used in counter-terrorism and COIN operations in low threat environment and is cost benefical compared to jets.

  11. Influence of environmental factors on corrosion damage of aircraft structure

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Corrosion is one of the important structural integrity concerns of aging aircraft, and it is estimated that a significant portion of airframe maintenance budgets is directed towards corrosion-related problems for both military and commercial aircraft. In order to better understand how environmental factors influence the corrosion damage initiation and propagation on aircraft structure and to predict pre-corrosion test pieces of fatigue life and structural integrity of an effective approach, this paper uses ...

  12. APPLICATION FOR AIRCRAFT TRACKING

    OpenAIRE

    Ostroumov, Ivan; Kuz’menko, Natalia

    2011-01-01

    Abstract. In the article the important problems of software development for aircraft tracking have beendiscussed. Position reports of ACARS have been used for aircraft tracking around the world.An algorithm of aircraft coordinates decoding and visualization of aircraft position on the map has beenrepresented.Keywords: ACARS, aircraft, internet, position, software, tracking.

  13. Maintenance of nuclear power plants

    International Nuclear Information System (INIS)

    This Guide covers the organizational and procedural aspects of maintenance but does not give detailed technical advice on the maintenance of particular plant items. It gives guidance on preventive and remedial measures necessary to ensure that all structures, systems and components important to safety are capable of performing as intended. The Guide covers the organizational and administrative requirements for establishing and implementing preventive maintenance schedules, repairing defective plant items, providing maintenance facilities and equipment, procuring stores and spare parts, selecting and training maintenance personnel, reviewing and controlling plant modifications arising from maintenance, and for generating, collecting and retaining maintenance records. Maintenance shall be subject to quality assurance in all aspects important to safety. Because quality assurance has been dealt with in detail in other Safety Guides, it is only included here in specific instances where emphasis is required. Maintenance is considered to include functional and performance testing of plant, surveillance and in-service inspection, where these are necessary either to support other maintenance activities or to ensure continuing capability of structures, systems and components important to safety to perform their intended functions

  14. 装备维修保障管理平台教学信息资源建设研究%Study of the Construction of Teaching Information Resources in the Equipment Maintenance and Support Management EvaIuating & Teaching System

    Institute of Scientific and Technical Information of China (English)

    王秀华; 王海燕; 姜坤

    2014-01-01

    教学信息资源是装备维修保障管理平台的重要支撑,基于装备维修保障管理平台的需求,围绕装备维修保障学科体系,分析了教学信息资源建设内容,明确了教学信息资源建设的基本原则,研究了教学信息资源体系功能,提出了教学信息资源建设需要解决的关键问题。%Teaching information resources is the main support to equipment maintenance and support management evaluating & teaching system.Based on the demand of equipment maintenance and support management evaluating & teaching system and surrounding equipment maintenance and support knowledge system,the contents of teaching information resources construction is analyzed, the basic principle of teaching information resources construction is explained,the function of the teaching information resources system is studied and the key problems of teaching information resources construction needed are brought forward.

  15. 40 CFR 63.105 - Maintenance wastewater requirements.

    Science.gov (United States)

    2010-07-01

    ... the emptying and purging of equipment in the process during temporary shutdowns for inspections...., routine maintenance). The descriptions shall: (1) Specify the process equipment or maintenance tasks that...; and (3) Specify the procedures to be followed when clearing materials from process equipment. (c)...

  16. Predication and Optimization of Maintenance Resources for Weapon System

    OpenAIRE

    Yabin Wang

    2011-01-01

    Maintenance resources are important part of the maintenance support system. The whole efficiency of weapon system is directly affected by the allocation of maintenance resources. Joint support for weapon system of multi-kinds of equipments is the main fashion of maintenance support in the future. However, there is a lack of the efficiency tools and methods for predication and optimization of weapon system maintenance resources presently. For the prediction requirement of maintenance resources...

  17. Analysis on occupational hearing loss of noise-exposed workers in an aircraft maintenance engineering company%某飞机维修工程公司噪声作业人员听力损伤分析

    Institute of Scientific and Technical Information of China (English)

    张君

    2013-01-01

    [Objective]To investigate the noise-exposed workers in an aircraft maintenance engineering company, to analyze their hearing impairment status, and put forward suggestions for prevention of occupational hearing loss and occupational noise deafness. [Methods] A total of 1 067 noise-exposed workers were recruited as noise group and 111 without noise exposure as control group. MM-622 pure tone audiometer by the zero-level correction was adopted for pure tone air conduction checks at 0.5, 1.0, 2.0, 3. 0, 4.0, 6.0 kHz on ears of workers. Assessment standards of hearing impairment: speech frequency at 0. 5, 1.0, 2.0 kHz in average >25dB, high-frequency at 3.0, 4.0, 6.0 kHz respectively ≥30 dB. [Results] A total of 1 067 workers (2 134 ears) were investigated, 345 (647 ears) had hearing impairment, the prevalence was 32. 33% . High-frequency hearing loss occurred on 320 workers (614 ears) , speech frequency hearing loss on 25 workers (33 ears). Of 111 workers in control group, 4 workers (6 ears) had hearing impairment, all were high-frequency hearing loss, the prevalence was 3. 60%. The prevalence of hearing impairment of noise group was obviously higher than that of control group, with significant difference ( x2 = 39. 80,P <0.01). [Conclusion] Noise influences the high-frequency hearing threshold of workers with exposure . And the risk of hearing loss rate inceases with the extending of service length. It is suggested to strengthen personal protection, to establish health records and control occupational noise deafness.%目的 对某飞机维修工程公司噪声作业人员进行调查,分析该公司噪声作业人员的听力损伤现状,以期对预防职业性听力损伤和职业性噪声聋提出建议.方法 设噪声作业组1067人,非噪声接触人员111人为对照组,均使用丹麦产MM-622型纯音听力计(经零级校正),对两组人员双耳0.5、1.0、2.0、3.0、4.0、6.0 kHz的纯音气导进行检查,听力损伤的评定标准:语频听损以0

  18. 面向飞机维护应用反馈系统的知识管理研究%Study on Knowledge Management for Aircraft Maintenance Application Feedback System

    Institute of Scientific and Technical Information of China (English)

    高晓洁; 王小平; 初建杰

    2011-01-01

    Requirement of creating an application feedback system in aircraft product and service system is presented.The role of knowledge management in feedback subsystem of the product lifecycle management in aircraft application is discussed.The importance and necessity of knowledge management in the feedback processes is validated through software implementation.%提出了在飞机产品服务系统中建立应用反馈系统的需求,论述知识管理在飞机产品全生命周期管理应用反馈子系统中的作用,通过软件实现验证了知识管理在应用反馈系统中的重要性和必要性.

  19. Stochastic Overall Equipment Effectiveness

    OpenAIRE

    Zammori, Francesco Aldo; Braglia, Marcello; Frosolini, Marco

    2011-01-01

    Abstract This paper focuses on the Overall Equipment Effectiveness (OEE), a key performance indicator typically adopted to support Lean Manufacturing and Total Productive Maintenance. Unfortunately, being a deterministic metric, the OEE only provides a static representation of a process, but fails to capture the real variability of manufacturing performances. To take into account the stochastic nature of the OEE, an approximated procedure based on the application of the Central Lim...

  20. 直播卫星户户通双模系统原理及终端设备维护%Direct Broadcast Satellite Promises Dual-mode System Principle and Terminal Equipment Maintenance

    Institute of Scientific and Technical Information of China (English)

    姜志刚

    2015-01-01

    “户户通”直播卫星电视是由广电总局负责实施的惠民工程,以最低成本、最快速度、最有效的方式,从根本上解决广大农村听广播看电视难的问题,加快推进城乡广播电视公共服务均等化。“户户通”在安装及使用过程中存在许多问题,对“户户通”工程的长期通、优质通造成不良影响,以这些问题为切入点,根据腾冲县所使用的设备,介绍双模“户户通”系统的信号流程、模块功能与终端维修思路,旨在改进“户户通”的售后服务,保证收视效果。%“Promises” direct broadcast satellite TV is the administration of radio , film and is responsible for the implementation of people-benefit project , at the lowest cost , the fastest speed , the most effective way to fundamentally solve the rural and mountainous areas , every family, and everyone is listening to the radio , watch TV , promote urban and rural equalization of public service broadcasting and television .Promises there are many problems in the process of installation and use , for household project all the time , for a long time, a certain impact , these problems are presented in this paper as the breakthrough point , combined with Teng-chong county using the equipment , introduced the signal in the system of two-mode promises processes , mod-ules, functions, and terminal maintenance, aimed at promoting promises timely after-sales service.

  1. 基于电气设备的维修检查与实践技术探索%Research on maintenance inspection and practical technology based on electrical equipment

    Institute of Scientific and Technical Information of China (English)

    李克南

    2016-01-01

    Because of the unfamiliar circuit,if at the same time appear a variety of fault,under the premise of the electrical principle diagram,clarify ideas, carefully analysis principle of electrical control,and no electrical principle diagram,we must first according to previous experience to draw a simple electrical diagram to analyze the specific situation.If it is divided into familiar with the circuit principle, according to the fault situation,determine the location of the fault,determine the side of the amount of points,through the side to find fault.In continuous contact with the supporting,engineering,design, production and research and development and other aspects of the work under the premise of the accumulation of experience.This paper briefly expounds the methods and practices of electrical equipment maintenance.%因为对电路生疏,如果同时出现多种故障,在有电气原理图的前提下,就要理清思路,认真地分析电气控制原理,在没有电气原理图的情况下,首先要根据以往的经验画出简单的电气图来分析具体情况。如果是分熟悉电路原理,根据故障情况,确定故障的位置,确定侧量点,通过侧量找出故障。在不断地接触配套、工程、设计、生产及研发等多部门多方面的工作的前提下,积累经验。本文简要阐述了电气设备维修的方法与实践技术。

  2. Operational Interventions to Maintenance Error

    Science.gov (United States)

    Kanki, Barbara G.; Walter, Diane; Dulchinos, VIcki

    1997-01-01

    A significant proportion of aviation accidents and incidents are known to be tied to human error. However, research of flight operational errors has shown that so-called pilot error often involves a variety of human factors issues and not a simple lack of individual technical skills. In aircraft maintenance operations, there is similar concern that maintenance errors which may lead to incidents and accidents are related to a large variety of human factors issues. Although maintenance error data and research are limited, industry initiatives involving human factors training in maintenance have become increasingly accepted as one type of maintenance error intervention. Conscientious efforts have been made in re-inventing the team7 concept for maintenance operations and in tailoring programs to fit the needs of technical opeRAtions. Nevertheless, there remains a dual challenge: 1) to develop human factors interventions which are directly supported by reliable human error data, and 2) to integrate human factors concepts into the procedures and practices of everyday technical tasks. In this paper, we describe several varieties of human factors interventions and focus on two specific alternatives which target problems related to procedures and practices; namely, 1) structured on-the-job training and 2) procedure re-design. We hope to demonstrate that the key to leveraging the impact of these solutions comes from focused interventions; that is, interventions which are derived from a clear understanding of specific maintenance errors, their operational context and human factors components.

  3. Maintenance of nuclear power plant

    International Nuclear Information System (INIS)

    Maintenance action of nuclear power plant (NPP) was described. Maintenance of NPP aimed at assurance of required function of NPP's equipment so as to prevent release of radioactive materials into the environment as well as attainment of stable operation of NPP. Philosophy of NPP safety was based on defense-in-depth or multiple barriers requiring specified function for the equipment. Preventive maintenance was essential to NPP's equipment and the scope of maintenance was decided on priority with adequate method and frequency of inspection. Most inspection was conducted during periodic inspection at outage. Repair or improvement works were performed if needed. Periodic inspection period was very long and then capacity factor of NPP was low in Japan compared with foreign data although frequency of unscheduled shutdown was very low. Introduction of reability- centered maintenance was requested based on past experiences of overhaul inspection. Technical evaluation of aged NPP had been conducted on aging phenomena and promotion of advanced maintenance was more needed. (T. Tanaka)

  4. 14 CFR 43.10 - Disposition of life-limited aircraft parts.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Disposition of life-limited aircraft parts. 43.10 Section 43.10 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING, AND ALTERATION § 43.10 Disposition...

  5. Preventive maintenance

    International Nuclear Information System (INIS)

    The information contained in this paper should be used in conjunction with the maintenance instructions provided by the manufacturer of each valve. When there is any question or conflict between the procedure described and the manufacturer's, the author suggests determining the best method for the applications. A good long range preventative maintenance program for valves will eliminate costly repairs or replacement of valves long before their time. A little flush, lube, and what was once called elbow grease will also go a long way in reducing your downtime and maintenance budget. This paper will discuss one of the most misunderstood theories concerning valve maintenance, i.e., that periodic maintenance of valves includes the injection of sealants. Sealants are injected into valves as a secondary seal for most valves. Under normal conditions, valves do not require sealant injection. Solid fillers in sealants tend to plug the system making it virtually impossible to inject either sealant or a lubricant, requiring the injection of flush or cleaners to dislodge the solids. Topics covered in this paper will range from general maintenance requirements to valve flushing, cleaning and lubrication

  6. Maintenance strategies to reduce downtime due to machine positional errors

    OpenAIRE

    Shagluf, Abubaker; Longstaff, A.P.; Fletcher, S.

    2014-01-01

    Manufacturing strives to reduce waste and increase Overall Equipment Effectiveness (OEE). When managing machine tool maintenance a manufacturer must apply an appropriate decision technique in order to reveal hidden costs associated with production losses, reduce equipment downtime competentely and similiarly identify the machines performance. Total productive maintenance (TPM) is a maintenance program that involves concepts for maintaining plant and equipment effectively. OEE is a powerful...

  7. Maintenance Strategies to Reduce Downtime Due to Machine Positional Errors

    OpenAIRE

    Shagluf, Abubaker; Longstaff, Andrew P.; Fletcher, Simon

    2014-01-01

    Manufacturing strives to reduce waste and increase Overall Equipment Effectiveness (OEE). When managing machine tool maintenance a manufacturer must apply an appropriate decision technique in order to reveal hidden costs associated with production losses, reduce equipment downtime competently and similarly identify the machines’ performance. Total productive maintenance (TPM) is a maintenance program that involves concepts for maintaining plant and equipment effectively. OEE is a pow...

  8. Standardization: using comparative maintenance costs in an economic analysis

    OpenAIRE

    Clark, Roger Nelson

    1987-01-01

    This thesis investigates the use of comparative maintenance costs of functionally interchangeable equipments in similar U.S. Navy shipboard applications in an economic analysis of standardization. The economics of standardization, life-cycle costing, and the Navy 3-M System are discussed in general. An analysis of 3-M System maintenance costs for a selected equipment, diesel engines, is conducted. The potential use of comparative maintenance costs in determining an equipment standard and e...

  9. Optimal maintenance policies applicable to repairable systems onboard ships

    OpenAIRE

    Singh, Sukhdev

    1991-01-01

    Maintenance, a key element of Integrated Logistics Support, plays a very vital role throughout an equipment/system planned life-cycle. Maintenance costs contribute a major portion of the life cycle costs of an equipment or system. Past historical records have shown that the cost associated with system maintenance is immense and usually takes up a large portion of the annual operating expenditure. Besides the costs, sound maintenance efforts contribute to better operational availability and...

  10. Development of manufacturing equipment and QC equipment for DUPIC fuel

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Myung Seung; Park, J.J.; Lee, J.W.; Kim, S.S.; Yim, S.P.; Kim, J.H.; Kim, K.H.; Na, S.H.; Kim, W.K.; Shin, J.M.; Lee, D.Y.; Cho, K.H.; Lee, Y.S.; Sohn, J.S.; Kim, M.J

    1999-05-01

    In this study, DUPIC powder and pellet fabrication equipment, welding system, QC equipment, and fission gas treatment are developed to fabricate DUPIC fuel at IMEF M6 hot cell. The systems are improved to be suitable for remote operation and maintenance with the manipulator at hot cell. Powder and pellet fabrication equipment have been recently developed. The systems are under performance test to check remote operation and maintenance. Welding chamber and jigs are designed and developed to remotely weld DUPIC fuel rod with manipulators at hot cell. Remote quality control equipment are being tested for analysis and inspection of DUPIC fuel characteristics at hot cell. And trapping characteristics is analyzed for cesium and ruthenium released under oxidation/reduction and sintering processes. The design criteria and process flow diagram of fission gas treatment system are prepared incorporating the experimental results. The fission gas treatment system has been successfully manufactured. (Author). 33 refs., 14 tabs., 91 figs.

  11. Study on Impedance Characteristics of Aircraft Cables

    Directory of Open Access Journals (Sweden)

    Weilin Li

    2016-01-01

    Full Text Available Voltage decrease and power loss in distribution lines of aircraft electric power system are harmful to the normal operation of electrical equipment and may even threaten the safety of aircraft. This study investigates how the gap distance (the distance between aircraft cables and aircraft skin and voltage frequency (variable frequency power supply will be adopted for next generation aircraft will affect the impedance of aircraft cables. To be more precise, the forming mechanism of cable resistance and inductance is illustrated in detail and their changing trends with frequency and gap distance are analyzed with the help of electromagnetic theoretical analysis. An aircraft cable simulation model is built with Maxwell 2D and the simulation results are consistent with the conclusions drawn from the theoretical analysis. The changing trends of the four core parameters of interest are analyzed: resistance, inductance, reactance, and impedance. The research results can be used as reference for the applications in Variable Speed Variable Frequency (VSVF aircraft electric power system.

  12. Construction of Student-oriented Higher Vocational College Teaching Equipment Maintenance Management Mode:Taking Electrical and Mechanical Professional Group for Example%以学生为主体的高职院校教学设备维护管理模式建设--以机电专业群为例

    Institute of Scientific and Technical Information of China (English)

    周瑞丽; 张安洁

    2014-01-01

    近年来,高职院校教学设备数量和资产总额迅猛增长,但却出现管理不完善,设备完好率不高、折旧较快等问题。为此,将设备管理工作与《设备管理》工学结合课程改革相结合,将专业教学设备管理工作设置为一定的学习任务,让学生在完成学习任务的同时,也完成专业教学设备管理工作,建立一种以学生为主体的教学设备维护管理模式,实现学生实践能力和设备管理水平双提高。%In recent years, the number and total assets of vocational college teaching equipment is increasing rapidly, but problems like poor management, low equipment intact rate and rapid depreciation appear. Therefore, the equipment management work is combined with the learning-working integration reform of Equipment Management course. The professional teaching equipment management is set as certain learning tasks, so that students can complete teaching equipment management while completing learning tasks and thus establishing a student-oriented teaching equipment maintenance management mode to achieve the improvement of students' practical ability and equipment management ability.

  13. Using condition-based maintenance and reliability-centered maintenance to improve maintenance in nuclear power plants

    International Nuclear Information System (INIS)

    Maintenance optimization process in nuclear power plants (NPPs) has, in recent decades, been driving the transition of maintenance strategies from time-based preventive maintenance to systematic strategies depending on both equipment condition and reliability analysis. Starting with a comparison of various types of maintenance strategies in current NPPs, this paper highlights the evident advantages of condition-based maintenance (CBM) in both technical feasibility and cost-effectiveness. This paper also expounds the theoretical foundation and application methodology of CBM, as well as the complementary relationship between CBM and RCM. Taking Daya Bay nuclear power base as a case example, we introduce in detail the experience of using Reliability-centered Maintenance (RCM) and CBM to drive maintenance improvement in NPPs, which serves as a cornerstone for the application of RCM analysis-based CBM maintenance in other plants. (author)

  14. Structural resource of the aircraft IAR-99 SOIM

    OpenAIRE

    Radu BISCA; Dorin LOZICI-BRINZEI

    2012-01-01

    Aircraft structure fatigue monitoring has been developed over decades presently reaching the stage where it became mandatory for all combat aircraft to be equipped with an airborne fatigue monitoring system. These systems usually collect operational data for calculating the safe fatigue life or inspection interval for the aircraft structure. This paper presents an analysis of the current state of fatigue monitoring systems on the IAR-99 SOIM based on the experience of international fatigue mo...

  15. Emerging nondestructive inspection methods for aging aircraft

    Energy Technology Data Exchange (ETDEWEB)

    Beattie, A; Dahlke, L; Gieske, J [and others

    1994-01-01

    This report identifies and describes emerging nondestructive inspection (NDI) methods that can potentially be used to inspect commercial transport and commuter aircraft for structural damage. The nine categories of emerging NDI techniques are: acoustic emission, x-ray computed tomography, backscatter radiation, reverse geometry x-ray, advanced electromagnetics, including magnetooptic imaging and advanced eddy current techniques, coherent optics, advanced ultrasonics, advanced visual, and infrared thermography. The physical principles, generalized performance characteristics, and typical applications associated with each method are described. In addition, aircraft inspection applications are discussed along with the associated technical considerations. Finally, the status of each technique is presented, with a discussion on when it may be available for use in actual aircraft maintenance programs. It should be noted that this is a companion document to DOT/FAA/CT-91/5, Current Nondestructive Inspection Methods for Aging Aircraft.

  16. Vision assisted aircraft lateral navigation

    Science.gov (United States)

    Mohideen, Mohamed Ibrahim; Ramegowda, Dinesh; Seiler, Peter

    2013-05-01

    Surface operation is currently one of the least technologically equipped phases of aircraft operation. The increased air traffic congestion necessitates more aircraft operations in degraded weather and at night. The traditional surface procedures worked well in most cases as airport surfaces have not been congested and airport layouts were less complex. Despite the best efforts of FAA and other safety agencies, runway incursions continue to occur frequently due to incorrect surface operation. Several studies conducted by FAA suggest that pilot induced error contributes significantly to runway incursions. Further, the report attributes pilot's lack of situational awareness - local (e.g., minimizing lateral deviation), global (e.g., traffic in the vicinity) and route (e.g., distance to next turn) - to the problem. An Enhanced Vision System (EVS) is one concept that is being considered to resolve these issues. These systems use on-board sensors to provide situational awareness under poor visibility conditions. In this paper, we propose the use of an Image processing based system to estimate the aircraft position and orientation relative to taxiway markings to use as lateral guidance aid. We estimate aircraft yaw angle and lateral offset from slope of the taxiway centerline and horizontal position of vanishing line. Unlike automotive applications, several cues such as aircraft maneuvers along assigned route with minimal deviations, clear ground markings, even taxiway surface, limited aircraft speed are available and enable us to implement significant algorithm optimizations. We present experimental results to show high precision navigation accuracy with sensitivity analysis with respect to camera mount, optics, and image processing error.

  17. 19 CFR 10.62b - Aircraft turbine fuel.

    Science.gov (United States)

    2010-04-01

    ... section. Withdrawals under this paragraph shall be annotated with the term “Withdrawal under 19 CFR 10.62b... 19 Customs Duties 1 2010-04-01 2010-04-01 false Aircraft turbine fuel. 10.62b Section 10.62b... Supplies and Equipment for Vessels § 10.62b Aircraft turbine fuel. (a) General. Unless otherwise...

  18. Knowledge engineering thinking of maintenance

    International Nuclear Information System (INIS)

    Maintenance optimization problem could not always settled mathematically and was obliged to use quasi-optimum solution with omitting non-formulated limiting condition or neglecting part of optimization object. In such a case knowledge engineering thinking was encouraged. Maintenance of complicated plant and artificial system should be considered from artificial object (equipment/facility hardware and system), technical information and knowledge base, and organizational and human aspect or society and institution. Comprehensive management system in organization and society was necessary not only for assuring integrity of equipment but also for attaining higher performance, reliability and economics of system. For better judgment it was important to share mechanism to make use of more information with organization or whole society. It was required to create database and data mining for knowledge base management system of maintenance. Maintenance was called 'last fortress' to assure quality such as reliability and safety of required function of equipment. Strategic approach to develop maintenance technology under cooperation was considered. Life extension R and D road map was launched in 2005. (T. Tanaka)

  19. Equipment for ion beam production

    International Nuclear Information System (INIS)

    An equipment has been designed to extend the scope of control of ion beam flux for an intensive ion beam source used for plasma injection in magnetic vessels. The control equipment is connected to the electromagnet power supply. A consumption regulator is fitted in the operating gas supply to the hollow cathode of the ion source. A circuit is also included for discharge voltage maintenance consisting of a control element and a discharge voltage pick-up. (M.D.). 1 fig

  20. The DSN Asset Management/Maintenance Improvement Initiative

    Science.gov (United States)

    Wackley, J.; Dundics, D.

    2011-11-01

    This article describes the Asset Management/Maintenance Improvement (AMMI) initiative: the first focused Deep Space Network (DSN) initiative intended to improve the efficiency and efficacy of maintenance, support improvement in equipment reliability, and provide metrics for use in understanding equipment reliability and the use of maintenance resources. The initiative has resulted in the introduction of many new processes and procedures including the global use of a computerized maintenance management system (CMMS) and Reliability-Centered Maintenance (RCM) concepts. The work performed as part of the AMMI initiative represents significant changes to the DSN maintenance culture that has been in place for over 40 years.

  1. Selected Aircraft Throttle Controller With Support Of Fuzzy Expert Inference System

    OpenAIRE

    Żurek Józef; Grzesik Norbert; Kurpas Jakub

    2014-01-01

    The paper describes Zlin 143Lsi aircraft engine work parameters control support method – hourly fuel flow as a main factor under consideration. The method concerns project of aircraft throttle control support system with use of fuzzy logic (fuzzy inference). The primary purpose of the system is aircraft performance optimization, reducing flight cost at the same time and support proper aircraft engine maintenance. Matlab Software and Fuzzy Logic Toolbox were used in the project. Work of the sy...

  2. Maintenance Therapy in IBD

    Science.gov (United States)

    ... Help Center Home > Resources > Maintenance Therapy Go Back Maintenance Therapy Email Print + Share The term "maintenance therapy" ... are referred to as "maintenance therapies." Why is Maintenance Therapy Needed in IBD? Both Crohn's disease and ...

  3. Computational intelligence applied to the logistics of electric energy distribution network maintenance teams; Inteligencia computacional aplicada a logistica de equipes de manutencao de redes de distribuicao de energia eletrica

    Energy Technology Data Exchange (ETDEWEB)

    Bobel, Edson [Companhia Paranaense de Energia (COPEL), Curitiba, PR (Brazil)]. E-mails: edson.bobel@copel.com; Lopes, Heitor Silverio [Universidade Tecnologica Federal do Parana (UTFPR), Curitiba (Brazil)]. E-mail: hslopes@utfpr.edu.br

    2007-10-15

    One of the problems that an Electric Energy Distribution Company faces is the maintenance of its distribution network. This study focuses on the problem of allocating emergency maintenance teams so that costs related to the energy outage as well as the cost of the teams themselves are minimized. This study includes a geographic area of 108 counties in the State of Parana, Brazil, and uses information related to: interruptions history in high voltage switches, list of locations able to allocate emergency maintenance teams and list of switches that were actually served by the maintenance teams during the year 2002. With this information and the list of locations with emergency maintenance teams, an estimate of the situation is made and the costs are calculated for the year 2002. With this in hand, the problem was solved using two methods: p-medians and genetic algorithms, in which the potential gains of 13.37% and 12.64% were obtained, respectively, as compared to the costs in 2002, for the same geographic area. Finally, a projection was made for the potential decrease of costs for the Electric Distribution Company regarding the total area of Parana State, as well as an estimate of financial profits for the State Government. (author)

  4. A process for risks focused maintenance

    International Nuclear Information System (INIS)

    This paper describes work performed for the U.S. Nuclear Regulatory Commission (NRC) as technical support for a proposed Maintenance Rule. A risk-centered approach for identifying equipment to be included within the purview of such a rule (critical equipment) was developed, along with a stylized Reliability-Centered Maintenance (RCM) approach that would be specified for such equipment. Maintenance of equipment not classified as critical would be left to the discretion of the plant. The processes defined were demonstrated through a series of trial applications with cooperating Utilities. The five trial applications were: identifying critical equipment using a PRA; identifying critical equipment when a PRA is not available; RCM on standby equipment using the prescribed steps; RCM on normally operating equipment using the prescribed steps; and RCM on passive equipment using the prescribed steps. The conclusion was that a risk-focused maintenance approach could be specified that was usable, presented only a small additional burden to the plant, and was regulatable. 5 refs, 4 figs, 4 tabs

  5. Remote equipment technology. Final report for GFY 1880

    Energy Technology Data Exchange (ETDEWEB)

    Wadekamper, D.C.

    1980-09-01

    An interactive graphics terminal and a desk-top computer were utilized to perform a Computer Aided Remote Maintenance simulation of a hypothetical equipment item. The equipment item included an electrical connection, hydraulic fitting, and simple bolt pattern which were maintained by remote manipulators during the simulation. These remote maintenance operations demonstrated that the Computer Aided Remote Maintenance simulation technology could be extended to complex equipment items. As a result, these equipment items can be evaluated from the standpoint of remote operation and maintenance prior to purchase or installation in a remote processing or cell arrangement.

  6. Remote equipment technology. Final report for GFY 1880

    International Nuclear Information System (INIS)

    An interactive graphics terminal and a desk-top computer were utilized to perform a Computer Aided Remote Maintenance simulation of a hypothetical equipment item. The equipment item included an electrical connection, hydraulic fitting, and simple bolt pattern which were maintained by remote manipulators during the simulation. These remote maintenance operations demonstrated that the Computer Aided Remote Maintenance simulation technology could be extended to complex equipment items. As a result, these equipment items can be evaluated from the standpoint of remote operation and maintenance prior to purchase or installation in a remote processing or cell arrangement

  7. Severity estimation and shop visit prediction of civil aircraft engines

    OpenAIRE

    Hanumanthan, Hariharan

    2009-01-01

    To sustain in the vibrant field of civil aviation, the aircraft and engine manufacturers are in the pursuit of delivering efficient systems with the best economics. In umpteen scenarios of growing interest, engine maintenance cost due to scheduled maintenance is of importance. The current research is focused on estimation of the maintenance factors, such as severity and shop visit rate to study the operational scenarios and concurrent technologies. The severity, defined as r...

  8. Aircraft empennage structural detail design

    Science.gov (United States)

    Meholic, Greg; Brown, Rhonda; Hall, Melissa; Harvey, Robert; Singer, Michael; Tella, Gustavo

    1993-01-01

    This project involved the detailed design of the aft fuselage and empennage structure, vertical stabilizer, rudder, horizontal stabilizer, and elevator for the Triton primary flight trainer. The main design goals under consideration were to illustrate the integration of the control systems devices used in the tail surfaces and their necessary structural supports as well as the elevator trim, navigational lighting system, electrical systems, tail-located ground tie, and fuselage/cabin interface structure. Accommodations for maintenance, lubrication, adjustment, and repairability were devised. Weight, fabrication, and (sub)assembly goals were addressed. All designs were in accordance with the FAR Part 23 stipulations for a normal category aircraft.

  9. Aircraft Lightning Electromagnetic Environment Measurement

    Science.gov (United States)

    Ely, Jay J.; Nguyen, Truong X.; Szatkowski, George N.

    2011-01-01

    This paper outlines a NASA project plan for demonstrating a prototype lightning strike measurement system that is suitable for installation onto research aircraft that already operate in thunderstorms. This work builds upon past data from the NASA F106, FAA CV-580, and Transall C-180 flight projects, SAE ARP5412, and the European ILDAS Program. The primary focus is to capture airframe current waveforms during attachment, but may also consider pre and post-attachment current, electric field, and radiated field phenomena. New sensor technologies are being developed for this system, including a fiber-optic Faraday polarization sensor that measures lightning current waveforms from DC to over several Megahertz, and has dynamic range covering hundreds-of-volts to tens-of-thousands-of-volts. A study of the electromagnetic emission spectrum of lightning (including radio wave, microwave, optical, X-Rays and Gamma-Rays), and a compilation of aircraft transfer-function data (including composite aircraft) are included, to aid in the development of other new lightning environment sensors, their placement on-board research aircraft, and triggering of the onboard instrumentation system. The instrumentation system will leverage recent advances in high-speed, high dynamic range, deep memory data acquisition equipment, and fiber-optic interconnect.

  10. Information Technology Applications to Maintenance Management

    Institute of Scientific and Technical Information of China (English)

    Abdul Raouf S.I.

    2003-01-01

    Application of IT (Information Technology) to equipment management have not been ade-quately made. A system using Benefit Evaluation Ladder is described for evaluating the need for IT ap-plications to maintenance management. A systematic evaluation scheme for Computerized Maintenance Management System (CMMS) is presented.

  11. Setting Up a Preventive Maintenance Program.

    Science.gov (United States)

    Dwyer, Michael J., Jr.

    1980-01-01

    The steps of a preventive maintenance program are to determine what equipment will fall within the program; to determine what tasks are necessary to perform the required maintenance, and the frequency of each task; and to build a workable schedule. (Author/MLF)

  12. Void Fraction Instrument operation and maintenance manual

    International Nuclear Information System (INIS)

    This Operations and Maintenance Manual (O ampersand MM) addresses riser installation, equipment and personnel hazards, operating instructions, calibration, maintenance, removal, and other pertinent information necessary to safely operate and store the Void Fraction Instrument. Final decontamination and decommissioning of the Void Fraction Instrument are not covered in this document

  13. Using Fly-By-Wire Technology in Future Models of the UH-60 and Other Rotary Wing Aircraft

    Science.gov (United States)

    Solem, Courtney K.

    2011-01-01

    Several fixed-winged airplanes have successfully used fly-by-wire (FBW) technology for the last 40 years. This technology is now beginning to be incorporated into rotary wing aircraft. By using FBW technology, manufacturers are expecting to improve upon the weight, maintenance time and costs, handling and reliability of the aircraft. Before mass production of this new system begins in new models such as the UH-60MU, testing must be conducted to insure the safety of this technology as well as to reassure others it will be worth the time and money to make such a dramatic change to a perfectly functional machine. The RASCAL JUH-60A has been modified for these purposes. This Black Hawk helicopter has already been equipped with the FBW technology and can be configured as a near perfect representation of the UH-60MU. Because both machines have very similar qualities, the data collected from the RASCAL can be used to make future decisions about the UH-60MU. The U.S. Army AFDD Flight Project Office oversees all the design modifications for every hardware system used in the RASCAL aircraft. This project deals with specific designs and analyses of unique RASCAL aircraft subsystems and their modifications to conduct flight mechanics research.

  14. Design and Implementation of Equipment Interactive Electronic Technical Manuals

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Interactive electronic technical manuals (IETMs) can significantly improve the maintenance and logistics of modern weapon equipment. Main functiors and development strategies of IETMs are discussed. As an example, the IETM development of a certain equipment is demonstrated.

  15. 14 CFR 125.249 - Maintenance manual requirements.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Maintenance manual requirements. 125.249 Section 125.249 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION... CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance §...

  16. 14 CFR 125.247 - Inspection programs and maintenance.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Inspection programs and maintenance. 125.247 Section 125.247 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance §...

  17. 30 CFR 56.14114 - Air valves for pneumatic equipment.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Air valves for pneumatic equipment. 56.14114... Equipment Safety Devices and Maintenance Requirements § 56.14114 Air valves for pneumatic equipment. A manual master quick-close type air valve shall be installed on all pneumatic-powered equipment if...

  18. Maintenance of nuclear power plants

    International Nuclear Information System (INIS)

    This Safety Guide provides detailed guidance on the provisions of the Code on the Safety in Nuclear Power Plants: Operation, IAEA Safety Series No. 50-C-O(Rev.1) on the maintenance of structures, systems and components. Like the Code, the Guide forms part of the IAEA's programme, referred to as the NUSS programme, for establishing Codes and Safety Guides relating to nuclear power plants. Effective maintenance is essential for safe operation of a nuclear power plant. It not only ensures that the level of reliability and effectiveness of all plant structures, systems and components having a bearing on safety remains in accordance with design assumptions and intent, but also that the safety status of the plant is not adversely affected after commencement of operation. Nuclear power plant maintenance requires special attention because of: Limitations set by requirements that a minimum number of components remain operable even when the plant is shut down in order to ensure that all necessary safety functions are guaranteed; Difficulty of access to some plant items even when the plant is shut down, due to radiation protection constraints; Potential radiological hazards to site personnel and the public. This Guide covers the organizational and procedural aspects of maintenance but does not give detailed technical advice on the maintenance of particular plant items. It gives guidance on preventive and remedial measures necessary to ensure that all structures, systems and components important to safety are capable of performing as intended. The Guide covers the organizational and administrative requirements for establishing and implementing preventive maintenance schedules, repairing defective plant items, selecting and training maintenance personnel, providing maintenance facilities and equipment, procuring stores and spare parts, reviewing, controlling and carrying out plant modifications, and generating, collecting and retaining maintenance records for establishing and

  19. Propulsion controlled aircraft computer

    Science.gov (United States)

    Cogan, Bruce R. (Inventor)

    2010-01-01

    A low-cost, easily retrofit Propulsion Controlled Aircraft (PCA) system for use on a wide range of commercial and military aircraft consists of an propulsion controlled aircraft computer that reads in aircraft data including aircraft state, pilot commands and other related data, calculates aircraft throttle position for a given maneuver commanded by the pilot, and then displays both current and calculated throttle position on a cockpit display to show the pilot where to move throttles to achieve the commanded maneuver, or is automatically sent digitally to command the engines directly.

  20. 76 FR 63167 - Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes With Supplemental Type...

    Science.gov (United States)

    2011-10-12

    ... Industries GmbH Airplanes With Supplemental Type Certificate (STC) SA03674AT AGENCY: Federal Aviation...): 2011-21-10 Diamond Aircraft Industries GmbH Airplanes Equipped With Supplemental Type Certificate (STC... airworthiness directive (AD) for Diamond Aircraft Industries GmbH Model (Diamond) DA 40 airplanes equipped...

  1. Susquehanna SES maintenance supervisor training and certification

    International Nuclear Information System (INIS)

    Susquehanna's program targets all Supervisors, Supervisor Candidates, and Temporary Supervisors that are responsible for in-plant maintenance or maintenance support activities, including: mechanical maintenance; electrical maintenance; maintenance support (labor support, radwaste, etc.); mobile construction support (mechanical and electrical); chemistry; health physics; maintenance planning; and instrument and controls. The program integrates the three major areas of direct Supervisory responsibilities: (1) Leadership and Management - Skills that require interpersonal activities that are typically humanistic and subjective; such as coaching, motivating, communications, etc. (2) Technical and Administrative - Knowledge that is directly related to the job of Supervising from the production, regulatory, accountability perspective. These topics are very objective and include training on topics such as workpackages, plant chemistry parameters, radiological concerns, etc. (3) Technical Skills - Ensure each Supervisor is technically competent in the plant systems, components, or equipment he/she is tasked with maintaining or overseeing. Typical skills found in this area are, circuit breaker maintenance, primary system sampling, or overhauling pumps

  2. 精准定位,科学衔接,搭建医疗器械职业人才培养立交桥--以中高职三二分段医疗器械制造与维护专业为例%Precise Positioning, Scientific Convergence, Build Overpass of Medical Equipment Professional Personnel Training--Vocational 3:2 in Medical Equipment Manufacturing and Maintenance Professionals as an example

    Institute of Scientific and Technical Information of China (English)

    翁灿烁

    2014-01-01

    在广东省加大职业教育人才培养立交桥建设力度的背景下,我院积极参与到实际工作中来,承担了医疗器械制造与维护专业中高职三二分段人才培养模式的设计与实施任务,已经取得一定的进展;本文旨在对目前各省开展高职三二分段人才培养模式进行调研,根据医疗器械制造与维护专业中高职不同就业方向对人才培养目标进行精准定位,研究医疗器械中高职三二分段科学衔接的人才培养方案。%In Guangdong Province, in the background of increasing vocational education the overpass construction efforts, and actively participate in the actual work to undertake a medical equipment manufacturing and maintenance of specialized vocational 3:2 in the design and implementation of the mission personnel training mode, some progress has been made;This pa-per aims to present the provinces to carry out vocational training model of 3:2 for research, according to the medical equipment manufacturing and maintenance professionals in different directions employment for vocational training objectives for accurate positioning, research medical devices vocational 3:2 convergence of scientific personnel training program.

  3. Opportune maintenance and predictive maintenance decision support

    OpenAIRE

    Thomas, Edouard; Levrat, Eric; Iung, Benoît; Cocheteux, Pierre

    2009-01-01

    Conventional maintenance strategies on a single component are being phased out in favour of more predictive maintenance actions. These new kinds of actions are performed in order to control the global performances of the whole industrial system. They are anticipative in nature, which allows a maintenance expert to consider non-already-planned maintenance actions. Two questions naturally emerge: when to perform a predictive maintenance action; how a maintenance expert can take advantage of a g...

  4. Exploration on optimizing maintenance management by using condition monitoring on drilling platforms in COSL

    OpenAIRE

    Guangyu, Zhang

    2013-01-01

    Taking a general investigation of maintenance activities in various industries, three maintenance philosophies are commonly applied, which are corrective maintenance, time-based periodic maintenance and condition-based predictive maintenance. Corrective maintenance which is implemented after breakdown of the equipment could lead to great losses in personnel safety, environment and assets. Therefore, the application and development on preventive maintenance – especially condition-base...

  5. 大型医疗设备维护中应用RCM模式的探究%Research on the Application of RCM Model in Maintenance of Large Medical Equipment

    Institute of Scientific and Technical Information of China (English)

    徐锋; 孟兆珂

    2016-01-01

    本文在介绍以可靠性为中心的维修(RCM)模式的基础上,探究通过建立医疗设备维修专家诊断系统,实现在大型医疗设备维护中应用RCM模式,以减少医院运营成本,提高医工人员的维修水平。%Based on the introduction of the reliability centered maintenance (RCM) model, the paper explored the realization of the RCM implementation through the establishment of the expert diagnostic system. The application of RCM in the medical linear accelerator can be used to reduce the cost of hospital operation, and improve the maintenance level of medical workers.

  6. Strategic Maintenance Management in Lean Environment

    OpenAIRE

    Rastegari, Ali

    2012-01-01

    In recent decades, by introducing the concept of lean production within manufacturing companies the vulnerability to system disturbances has increased and so, the demand for dependable production equipment. The need for having high production equipment availability causes companies to have a more effective and efficient maintenance strategy in order to reach a competitive production system. Despite the increasing demand on reliable production equipment, few manufacturing companies work with s...

  7. Value-leverage by Aerospace Original Equipment Manufacturers

    NARCIS (Netherlands)

    Beelaerts van Blokland, W.W.A.

    2010-01-01

    With the creation of new aircraft products; Embraer E-170/190, Dassault 7X, Airbus A380 and Boeing B787, aerospace original equipment manufacturers (OEMs) involve suppliers not only with the co-production of aircraft sub systems, but also with the entire development of sub systems, like fuselage and

  8. TPX remote maintenance and shielding

    International Nuclear Information System (INIS)

    The Tokamak Physics Experiment machine design incorporates comprehensive planning for efficient and safe component maintenance. Three programmatic decisions have been made to insure the successful implementation of this objective. First, the tokamak incorporates radiation shielding to reduce activation of components and limit the dose rate to personnel working on the outside of the machine. This allows most of the ex-vessel equipment to be maintained through conventional ''hands-on'' procedures. Second, to the maximum extent possible, low activation materials will be used inside the shielding volume. This resulted in the selection of Titanium (Ti-6Al-4V) for the vacuum vessel and PFC structures. The third decision stipulated that the primary in-vessel components will be replaced or repaired via remote maintenance tools specifically provided for the task. The component designers have been given the responsibility of incorporating maintenance design and for proving the maintainability of the design concepts in full-scale mockup tests prior to the initiation of final fabrication. Remote maintenance of the TPX machine is facilitated by general purpose tools provided by a special purpose design team. Major tools will include an in-vessel transporter, a vessel transfer system and a large component transfer container. In addition, tools such as manipulators and remotely operable impact wrenches will be made available to the component designers by this group. Maintenance systems will also provide the necessary controls for this equipment

  9. TPX remote maintenance and shielding

    International Nuclear Information System (INIS)

    The Tokamak Physics Experiment (TPX) machine design incorporates comprehensive planning for efficient and safe component maintenance. Three programmatic decisions have been made to insure the successful implementation of this objective. First, the tokamak incorporates radiation shielding to reduce activation of components and limit the dose rate to personnel working on the outside of the machine. This allows most of the ex-vessel equipment to be maintained through conventional open-quotes hands-onclose quotes procedures. Second, to the maximum extent possible, low activation materials will be used inside the shielding volume. This resulted in the selection of Titanium (Ti-6Al-4V) for the vacuum vessel and Plasma Facing Components (PFC) structures. The third decision stipulated that the primary in-vessel components will be replaced or repaired via remote maintenance tools specifically provided for the task. The component designers have been given the responsibility of incorporating maintenance design and for proving the maintainability of the design concepts in full-scale mockup tests prior to the initiation of final fabrication. Remote maintenance of the TPX machine is facilitated by general purpose tools provided by a special purpose design team. Major tools will include an in-vessel transporter, a vessel transfer system and a large component transfer container. In addition, tools such as manipulators and remotely operable impact wrenches will be made available to the component designers by this group. Maintenance systems will also provide the necessary controls for this equipment

  10. Escorting commercial aircraft to reduce the MANPAD threat

    Science.gov (United States)

    Hock, Nicholas; Richardson, M. A.; Butters, B.; Walmsley, R.; Ayling, R.; Taylor, B.

    2005-11-01

    This paper studies the Man-Portable Air Defence System (MANPADS) threat against large commercial aircraft using flight profile analysis, engagement modelling and simulation. Non-countermeasure equipped commercial aircraft are at risk during approach and departure due to the large areas around airports that would need to be secured to prevent the use of highly portable and concealable MANPADs. A software model (CounterSim) has been developed and was used to simulate an SA-7b and large commercial aircraft engagement. The results of this simulation have found that the threat was lessened when a escort fighter aircraft is flown in the 'Centreline Low' position, or 25 m rearward from the large aircraft and 15 m lower, similar to the Air-to-Air refuelling position. In the model a large aircraft on approach had a 50% chance of being hit or having a near miss (within 20m) whereas escorted by a countermeasure equipped F-16 in the 'Centerline Low' position, this was reduced to only 14%. Departure is a particularly vulnerable time for large aircraft due to slow climb rates and the inability to fly evasive manoeuvres. The 'Centreline Low' escorted departure greatly reduced the threat to 16% hit or near miss from 62% for an unescorted heavy aircraft. Overall the CounterSim modelling has showed that escorting a civilian aircraft on approach and departure can reduce the MANPAD threat by 3 to 4 times.

  11. Development of an optimized condition-based maintenance system by data fusion and reliability-centered maintenance

    International Nuclear Information System (INIS)

    Maintenance has gained in importance as a support function for ensuring equipment availability, quality products, on-time deliveries, and plant safety. Cost-effectiveness and accuracy are two basic criteria for good maintenance. Reducing maintenance cost can increase enterprise profit, while accurate maintenance action can sustain continuous and reliable operation of equipment. As instrumentation and information systems become cheaper and more reliable, condition-based maintenance becomes an important tool for running a plant or a factory. This paper presents a novel condition-based maintenance system that uses reliability-centered maintenance mechanism to optimize maintenance cost, and employs data fusion strategy for improving condition monitoring, health assessment, and prognostics. The proposed system is demonstrated by way of reasoning and case studies. The results show that optimized maintenance performance can be obtained with good generality.

  12. Network maintenance

    CERN Multimedia

    GS Department

    2009-01-01

    A site-wide network maintenance operation has been scheduled for Saturday 28 February. Most of the network devices of the general purpose network will be upgraded to a newer software version, in order to improve our network monitoring capabilities. This will result in a series of short (2-5 minutes) random interruptions everywhere on the CERN sites throughout the day. This upgrade will not affect the Computer Centre itself, Building 613, the Technical Network and the LHC experiments, dedicated networks at the pits. For further details of this intervention, please contact Netops by phone 74927 or e-mail mailto:Netops@cern.ch. IT/CS Group

  13. Network maintenance

    CERN Multimedia

    IT Department

    2009-01-01

    A site wide network maintenance has been scheduled for Saturday 28 February. Most of the network devices of the General Purpose network will be upgraded to a newer software version, in order to improve our network monitoring capabilities. This will result in a series of short (2-5 minutes) random interruptions everywhere on the CERN sites along this day. This upgrade will not affect: the Computer centre itself, building 613, the Technical Network and the LHC experiments dedicated networks at the pits. Should you need more details on this intervention, please contact Netops by phone 74927 or email mailto:Netops@cern.ch. IT/CS Group

  14. Effective maintenance practices to manage system aging

    Science.gov (United States)

    Chockie, Alan; Bjorkelo, Kenneth

    A study for the Nuclear Regulatory Commission was recently undertaken to identify effective maintenance practices that could be adapted by the nuclear industry in the United States to assist in managing the aging degradation of plant systems and components. Four organizations were examined to assess the influence of maintenance programs on addressing the system and component aging degradation issues. An effective maintenance program was found to be essential to the management of system and component aging. Four key elements of an effective maintenance program that are important to an aging management were identified: (1) the selection of critical systems and components; (2) the development of an understanding of aging through the collection and analysis of equipment performance information; (3) the development of appropriate preventive and predictive maintenance tasks to manage equipment and system aging degradation; and (4) the use of feedback mechanisms to continuously improve the management of aging systems and components. These elements were found to be common to all four organizations.

  15. NWCF maintenance features and capabilities

    International Nuclear Information System (INIS)

    A New Waste Calcining Facility is being built at the Idaho Chemical Processing Plant to replace the existing Waste Calcining Facility which was built to demonstrate fluidized-bed solidification of highly radioactive liquid wastes. The new facility is being designed to provide a higher waste throughput, more corrosion resistant materials of construction, more effective cleanup of effluent streams, and extensive remote maintenance and equipment replacement capability. The facility will also contain extensive decontamination capability should contact maintenance become necessary. The facility is presently in construction and is scheduled for hot operation in 1980

  16. 32 CFR 174.14 - Maintenance and repair.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 1 2010-07-01 2010-07-01 false Maintenance and repair. 174.14 Section 174.14... REVITALIZING BASE CLOSURE COMMUNITIES AND ADDRESSING IMPACTS OF REALIGNMENT Maintenance and Repair § 174.14 Maintenance and repair. (a) Facilities and equipment located on installations being closed are often...

  17. ANALYSIS OF MAINTENANCE AND REPAIR SYSTEMS IN LIVESTOCK

    OpenAIRE

    KOVALEV L.I.; I.L. Kovalev

    2015-01-01

    In article the analysis of various systems of technical service is carried out and a number of tasks of improvement of the organization of maintenance and repair on livestock farms and complexes in modern conditions of the market is defined. Efficiency of practical application of system of scheduled preventive maintenance and maintenance of cars and the equipment of animal husbandry locates.

  18. Analysis of maintenance and repair systems in livestock production

    OpenAIRE

    KOVALEV L.I.; I.L. Kovalev

    2015-01-01

    In article the analysis of various systems of technical service is carried out and a number of tasks of improvement of the organization of maintenance and repair on livestock farms and complexes in modern conditions of the market is defined. Efficiency of practical application of system of scheduled preventive maintenance and maintenance of cars and the equipment of animal husbandry locates.

  19. Augmented reality application utility for aviation maintenance work instruction

    Science.gov (United States)

    Pourcho, John Bryan

    Current aviation maintenance work instructions do not display information effectively enough to prevent costly errors and safety concerns. Aircraft are complex assemblies of highly interrelated components that confound troubleshooting and can make the maintenance procedure difficult (Drury & Gramopadhye, 2001). The sophisticated nature of aircraft maintenance necessitates a revolutionized training intervention for aviation maintenance technicians (United States General Accounting Office, 2003). Quite simply, the paper based job task cards fall short of offering rapid access to technical data and the system or component visualization necessary for working on complex integrated aircraft systems. Possible solutions to this problem include upgraded standards for paper based task cards and the use of integrated 3D product definition used on various mobile platforms (Ropp, Thomas, Lee, Broyles, Lewin, Andreychek, & Nicol, 2013). Previous studies have shown that incorporation of 3D graphics in work instructions allow the user to more efficiently and accurately interpret maintenance information (Jackson & Batstone, 2008). For aircraft maintenance workers, the use of mobile 3D model-based task cards could make current paper task card standards obsolete with their ability to deliver relevant, synchronized information to and from the hangar. Unlike previous versions of 3D model-based definition task cards and paper task cards, which are currently used in the maintenance industry, 3D model based definition task cards have the potential to be more mobile and accessible. Utilizing augmented reality applications on mobile devices to seamlessly deliver 3D product definition on mobile devices could increase the efficiency, accuracy, and reduce the mental workload for technicians when performing maintenance tasks (Macchiarella, 2004). This proposal will serve as a literary review of the aviation maintenance industry, the spatial ability of maintenance technicians, and benefits of

  20. Research on an Intelligent Maintenance Decision-making Support System

    Institute of Scientific and Technical Information of China (English)

    YANG Ming-zhong; HUANG Jin-guo; ZANG Tie-gang

    2004-01-01

    A new synthetic model of maintenance decision-making,which is made by an artificial neural network(ANN),expert system(ES)and emulation technology,is put forward.By means of this model all kinds of maintenance resources with low cost can be effectively harmonized; accordingly,the reliability,maintenance efficiency and quality of equipment can be improved,so service life of equipments is enhanced.

  1. 14 CFR 43.12 - Maintenance records: Falsification, reproduction, or alteration.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Maintenance records: Falsification, reproduction, or alteration. 43.12 Section 43.12 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING, AND ALTERATION §...

  2. PORTFOLIO OF POTENTIAL STRATEGIES IN AERONAUTIC MAINTENANCE

    International Nuclear Information System (INIS)

    EADS divisions aim more and more at developing services associated to their platforms. EADS divisions, like Airbus and Eurocopter, are investigating on services associated to their platforms in order to add them value. One possible service consists in structural maintenance operation assistance, especially for NDT operations performed by the customer. EADS Innovation Works envisages three different and complementary enhanced structural maintenance categories. Enhanced NDT improves standard NDT operation environment. This is made possible by the existence of 'smart' NDT tools that are computer based and therefore able to support other functions. These functions range from local smart data processing and display to remote expert assisted operation. Passive Sensor Network relies on sensors permanently installed on aircraft structure. Interrogation of sensors is performed on ground and off line (while structure is not loaded except by its own weight). It can be done at arbitrary times in order to determine structure health. The aim is to give easy access to some hidden ''hot spots,'' to reduce human factor in structure health assessment and optimize maintenance. Structural Health Monitoring goes a step beyond Passive Sensor Network, because interrogation units are on board the aircraft and may be connected to aircraft network. It allows to use on-line techniques such as adapted acoustic emission and to automatically raise an alarm when a defect appears in the structure. This paper presents these different ways of improving structural maintenance operations in service, with their respective advantages and limitations.

  3. Formulação estratégica da manutenção industrial com base na confiabilidade dos equipamentos Strategic formulation of industrial maintenance supported by equipment's reliability

    Directory of Open Access Journals (Sweden)

    Miguel Afonso Sellitto

    2005-04-01

    Full Text Available Este trabalho relata o uso da confiabilidade e da manutenibilidade na formulação de estratégias de manutenção industrial. O método utilizado foi o estudo de dois casos. Inicia-se revisando conceitos ligados a variáveis e processos aleatórios como base para definir conceitos e características de estudos de confiabilidade e de modelagem aplicados na gestão da manutenção industrial. A seguir se descrevem os casos estudados, em que se aplicam técnicas de modelagem de tempos até a falha e até o reparo no estabelecimento de estratégias de manutenção em fábricas do setor metal-mecânico. Com base nos resultados, discute-se o caso, estabelecendo condições para o uso da confiabilidade na formulação estratégica da manutenção, principalmente quanto ao sistema de informações necessárias.This paper reports the use of reliability and maintainability assessments in the strategic formulation of industrial maintenance. The method was a double case study. The paper begins by a theoretical review of related concepts of stochastic variables and processes as a basis to address concepts and features from reliability studies and modeling, suited to use in managing the industrial maintenance. One then describes the two studied cases, in which the reliability techniques were applied, in modeling the times to failure and times to the repair for the sake of settling the strategic formulation of industrial maintenance in metal-mechanic plants. Supported by results, this paper discusses the cases, arising requirements to the use of the reliability, mainly related to the information system.

  4. Mine railway equipments management information system

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, X.; Han, K.; Duan, T.; Liu, Z.; Lu, H. [China University of Mining and Technology, Xuzhou (China)

    2007-06-15

    Based on client/server and browser/server models, the management information system described realized the entire life-cycle management of mine railway equipment which included universal equipment and special equipment in the locomotive depot, track maintenance division, electrical depot and car depot. The system has other online functions such as transmitting reports, graphics management, statistics, searches, graphics wizard and web propaganda. It was applied in Pingdingshan Coal Co. Ltd.'s Railway Transport Department. 5 refs., 4 figs.

  5. RCM (Reliability Centered Maintenance) og WCM (World Class Maintenance)

    OpenAIRE

    Pedersen, Tom Ivar

    2011-01-01

    More complex and integrated equipment and the introduction of manufacturing philosophies like lean, with the reduction of buffers of inventory, has made the production environment more interconnected than before. This “have clearly put more pressure on the maintenance system, because disruption to production flows can quickly become costly by rapid disruption a large part of the operation” (Márquez, 2007, s. 12). To meet this challenges systematic techniques for the development of programmers...

  6. Solar Equipment

    Science.gov (United States)

    1983-01-01

    A medical refrigeration and a water pump both powered by solar cells that convert sunlight directly into electricity are among the line of solar powered equipment manufactured by IUS (Independent Utility Systems) for use in areas where conventional power is not available. IUS benefited from NASA technology incorporated in the solar panel design and from assistance provided by Kerr Industrial Applications Center.

  7. 基于Android的医疗设备无线数据采集与维护系统的设计%Design of Wireless Data Acquisition and Maintenance System for Medical Equipment based on Android

    Institute of Scientific and Technical Information of China (English)

    俸皓; 陈俊彦; 牛旭

    2015-01-01

    为了提高医疗设备数据采集与维护的效率,设计了基于Android终端的数据采集系统.终端可通过低功耗蓝牙对医疗设备实施数据采集、参数设置和维护操作,采集得到的数据可在终端上进行暂存和统计分析管理,并可通过移动互联网上传至服务器.以血液细胞分析仪的数据采集为实际背景实现了本系统,测试和部署结果表明,本设计能够满足应用需求.%To improve the efficiency of data acquisition and maintenance of medical devices, the data acquisition system has been designed based on Android terminal. This kind of terminal can do data acquisition, parameter configuration and maintenance on the medical device by low power consumption bluetooth. The collected data could be temporarily restored for statistical analysis and management on the terminal, finally it will be transferred to the server through mobile Internet. We implement the system based on the data collected by blood cell analysis device, and the design can reach the practical requirement.

  8. Measuring the performance of maintenance service outsourcing.

    Science.gov (United States)

    Cruz, Antonio Miguel; Rincon, Adriana Maria Rios; Haugan, Gregory L

    2013-01-01

    The aims of this paper are (1) to identify the characteristics of maintenance service providers that directly impact maintenance service quality, using 18 independent covariables; (2) to quantify the change in risk these covariables present to service quality, measured in terms of equipment turnaround time (TAT). A survey was applied to every maintenance service provider (n = 19) for characterization purposes. The equipment inventory was characterized, and the TAT variable recorded and monitored for every work order of each service provider (N = 1,025). Finally, the research team conducted a statistical analysis to accomplish the research objectives. The results of this study offer strong empirical evidence that the most influential variables affecting the quality of maintenance service performance are the following: type of maintenance, availability of spare parts in the country, user training, technological complexity of the equipment, distance between the company and the hospital, and the number of maintenance visits performed by the company. The strength of the results obtained by the Cox model built are supported by the measure of the Rp,e(2) = 0.57 with a value of Rp,e= 0.75. Thus, the model explained 57% of the variation in equipment TAT, with moderate high positive correlation between the dependent variable (TAT) and independent variables.

  9. Mining truck scheduling with stochastic maintenance cost

    Institute of Scientific and Technical Information of China (English)

    Erkan TOPAL; Salih RAMAZAN

    2012-01-01

    Open pit mining operations utilize large scale and expensive equipment.For the mines implementing shovel and truck operation system,trucks constitute a large portion of these equipment and are used for hauling the mined materials.In order to have sustainable and viable operation,these equipment need to be utilized efficiently with minimum operating cost.Maintenance cost is a significant proportion of the overall operating costs.The maintenance cost of a truck changes non-linearly depending on the type,age and truck types.A new approach based on stochastic integer programming (SIP) techniques is used for annually scheduling a fixed fleet of mining trucks in a given operation,over the life of mine (multi-year time horizon) to minimize maintenance cost.The maintenance cost data in mining usually has uncertainty caused from the variability of the operational conditions at mines.To estimate the cost,usually historic data from different operations for new mines,and/or the historic data at the operating mines are used.However,maintenance cost varies depending on road conditions,age of equipment and many other local conditions at an operation.Traditional models aim to estimate the maintenance cost as a deterministic single value and financial evaluations are based on the estimated value.However,it does not provide a confidence on the estimate.The proposed model in this study assumes the truck maintenance cost is a stochastic parameter due to the significant level of uncertainty in the data and schedules the available fleet to meet the annual production targets.The scheduling has been performed by applying both the proposed stochastic and deterministic approaches.The approach provides a distribution for the maintenance cost of the optimized equipment schedule minimizing the cost.

  10. 14 CFR 125.355 - Airplane equipment.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane equipment. 125.355 Section 125.355...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Flight Release Rules § 125.355...

  11. Condition-based maintenance at Duke Power: Lessons learned. Final report

    International Nuclear Information System (INIS)

    The optimization of preventive maintenance (PM) programs in the nuclear power industry has been achieved through the application of reliability-centered maintenance (RCM). Utility PM programs are mainly composed of time-directed maintenance tasks that can be made more cost-effective by replacing tasks with those based on equipment condition, i.e., condition-based tasks. Equipment condition diagnostic techniques, such as vibration monitoring, thermography, and ferrography, are descriptions of predictive maintenance (PdM) technologies used to determine an equipment's condition. This report provides a description of how Duke Power improved their use of equipment condition information, promoting the integration of their predictive and preventive maintenance programs

  12. DYNAMIC RESPONSE ANALYSIS OF CARRIER-BASED AIRCRAFT DURING LANDING

    Institute of Scientific and Technical Information of China (English)

    段萍萍; 聂宏; 魏小辉

    2013-01-01

    In view of the complexity of landing on the deck of aircraft carrier ,a systematic model ,composed of six-degree-of-freedom mathematic model of carrier-based aircraft ,four-degree-of-freedom model of landing gears and six-degree-of-freedom mathematic model of carrier , is established in the Matlab-Simulink environment , with damping function of landing gears and dynamic characteristics of tires being considered .The model ,where the car-rier movement is introduced ,is applicable for any abnormal landing condition .Moreover ,the equations of motion and relevant parameter are also derived .The dynamic response of aircraft is calculated via the variable step-size Runge-Kuta algorithm .The effect of attitude angles of aircraft and carrier movement during the process of landing is illustrated in details .The analytical results can provide some reference for carrier-based aircraft design and main-tenance .

  13. Airline experience with reliability-centered maintenance

    International Nuclear Information System (INIS)

    Reliability-Centered Maintenance is a process for developing preventive maintenance programs. Its concepts evolved from the post WWII experience of the airline community. Its genesis was in a paper by F. Stanley Nowlan and Thomas D. Matteson of United Airlines for the American Institute of Aeronautics and Astronautics in 1967. Its first application was to the Boeing 747. It has subsequently been adopted by the FAA and the Department of Defense and applied to many new transport and military aircraft. Its objective is applicable and effective preventive maintenance and it has proven to be a highly effective replacement for the prior intuitive processes for selective preventive maintenance tasks. It focuses on system functions, functional failures, then dominant failure modes and effects. It then uses a decision tree to classify failure criticality and identify applicable and effective tasks. The result is a program focused on maintaining inherent safety and reliability at minimum cost. (orig.)

  14. MODERN APPROACHES IN THE INDUSTRIAL MAINTENANCE MANAGEMENT - THE CONDITIONAL TYPE MAINTENANCE

    Directory of Open Access Journals (Sweden)

    IOAN CUCU

    2010-01-01

    Full Text Available Modern solutions from the industrial type management consist in using informational systems, sustained by means of measure and control of the main equipments from the technological flow. The paper presents several solutions in applying management in the conditional type maintenance activity. Conditions for a optimal work flow specific to this type of maintenance assume covering several analysis phases and the systematic examination of the range of means of measure and control. Application of Informatics in the conditional type maintenance also implies using methods for deploying systems of technological equipments work pursuit, taking into consideration the complexity of the means used and the deployment and using costs.

  15. Maintenance in a contractor organization:a practical approach

    OpenAIRE

    Haddad, Fadi M.

    1989-01-01

    A model for optimizing the assignment of maintenance actions for a piece of equipment is developed in the thesis. The model considers the detectability and the criticality of component failure in order to assign a maintenance instruction. The thesis also develops the framework for an integrated maintenance management system. The system consists of three modules. The first module is work control. It is used to prepare, schedule, and insure the execution of maintenance instructio...

  16. Maintenance of nuclear medicine instruments

    International Nuclear Information System (INIS)

    Maintenance of instruments is generally of two kinds: (a) corrective maintenance, on a non-scheduled basis, to restore equipment to a functional status by repairs; (b) preventive maintenance, to keep equipment in a specified functional condition by providing systematic inspection, quality control, detection and correction of early malfunctions. Most of the instruments used in nuclear medicine are rather complex systems built from mechanical, electrical and electronic parts. Any one of these components is liable to fail at some time or other. Repair could be done only by a specialist who is able to evaluate the condition of the various parts ranging from cables to connectors, from scintillators to photomultipliers, from microprocessors to microswitches. The knowledge of the intricacies of the various electronic components required for their repairs is quite wide and varied. The electronics industry turns out more and more multi-purpose chips which can carry out the functions of many parts used in the instruments of the earlier generation. This provides protection against unauthorized copying of the circuits but it serves another purpose as well of inhibiting repairs by non-factory personnel. These trends of the instrument design should be taken into consideration when a policy has to be developed for the repairs of the hospital based equipment

  17. Two Different Maintenance Strategies in the Hospital Environment: Preventive Maintenance for Older Technology Devices and Predictive Maintenance for Newer High-Tech Devices.

    Science.gov (United States)

    Sezdi, Mana

    2016-01-01

    A maintenance program generated through the consideration of characteristics and failures of medical equipment is an important component of technology management. However, older technology devices and newer high-tech devices cannot be efficiently managed using the same strategies because of their different characteristics. This study aimed to generate a maintenance program comprising two different strategies to increase the efficiency of device management: preventive maintenance for older technology devices and predictive maintenance for newer high-tech devices. For preventive maintenance development, 589 older technology devices were subjected to performance verification and safety testing (PVST). For predictive maintenance development, the manufacturers' recommendations were used for 134 high-tech devices. These strategies were evaluated in terms of device reliability. This study recommends the use of two different maintenance strategies for old and new devices at hospitals in developing countries. Thus, older technology devices that applied only corrective maintenance will be included in maintenance like high-tech devices. PMID:27195666

  18. Two Different Maintenance Strategies in the Hospital Environment: Preventive Maintenance for Older Technology Devices and Predictive Maintenance for Newer High-Tech Devices.

    Science.gov (United States)

    Sezdi, Mana

    2016-01-01

    A maintenance program generated through the consideration of characteristics and failures of medical equipment is an important component of technology management. However, older technology devices and newer high-tech devices cannot be efficiently managed using the same strategies because of their different characteristics. This study aimed to generate a maintenance program comprising two different strategies to increase the efficiency of device management: preventive maintenance for older technology devices and predictive maintenance for newer high-tech devices. For preventive maintenance development, 589 older technology devices were subjected to performance verification and safety testing (PVST). For predictive maintenance development, the manufacturers' recommendations were used for 134 high-tech devices. These strategies were evaluated in terms of device reliability. This study recommends the use of two different maintenance strategies for old and new devices at hospitals in developing countries. Thus, older technology devices that applied only corrective maintenance will be included in maintenance like high-tech devices.

  19. RAM analysis of mining equipment and framework for data collection

    OpenAIRE

    Sneve, Terje

    2015-01-01

    In the mining industry, equipment are continuously increasing in size and complexity. At the same time, the demand for available plants and continuous production has never been higher. The performance of equipment depends on the reliability and maintainability performance of the equipment along with the maintenance supportability, operational conditions, and environmental conditions. In order to improve plant availability, fully utilize equipment performance, avoid equipment breakdowns and op...

  20. Challenges and Opportunities with Refurbished/Second Hand Equipment

    International Nuclear Information System (INIS)

    The issues related to the transfer (via purchase or donation) of second hand equipment (mainly, but not exclusively, from industrialized to developing countries) and the problems associated with its use and sustainability are explored. Emphasis is placed on the needs of the recipient facility; the provision of tools, accessories, spare parts and manuals; the arrangements for acceptance testing, commissioning and maintenance of the equipment; and the training of staff and service technicians regarding equipment operation and maintenance. (author)

  1. 75 FR 7947 - Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Model TAE 125-01 Reciprocating...

    Science.gov (United States)

    2010-02-23

    ... aircraft equipped with a TAE 125-01 engine. This was found to be mainly the result of a blockage of the... specified products. The MCAI states: An in-flight engine shutdown incident was reported on an aircraft... the following new AD: 2010-04-06 Thielert Aircraft Engines GmbH: Amendment 39-16199. Docket No....

  2. Mine maintenance - the cost of operation

    Energy Technology Data Exchange (ETDEWEB)

    Kreilis, O.; Singleton, T. [Southern Engineering Services (Australia)

    1998-12-31

    Increasing world competition puts pressure on sales volumes and prices. This in turn reduces potential profit margins. This in turn increases the focus on costs. Increasing demands on quality and service puts pressure on delivery performance - the right product at the right time. This in turn reduces the scope for errors and delays - and this in turn increases focus on equipment reliability. In the mining industry, both costs and equipment reliability have one significant thing in common - they are driven substantially by maintenance. Maintenance, once the Cinderella of the boardroom is a pivotal function and demands management attention and, if managed well, can be a source of competitive advantage. They made the decision to put maintenance high on their agendas because they realised that good maintenance is a vital factor in achieving excellence. Maintenance, because of its impact on return on capital, is a key driver of performance. By reducing maintenance costs, companies can improve their performance. Top managers are increasingly recognising that maintenance is an area in which they must be involved. As Australian mining and metallurgical companies look to the year 2000 and beyond, maintenance will become an increasingly strategic function, capable of delivering sustainable competitive advantage to those companies that get it right. 7 refs., 5 figs.

  3. Failure: A Source of Progress in Maintenance and Design

    Science.gov (United States)

    Chaïb, R.; Taleb, M.; Benidir, M.; Verzea, I.; Bellaouar, A.

    This approach, allows using the failure as a source of progress in maintenance and design to detect the most critical components in equipment, to determine the priority order maintenance actions to lead and direct the exploitation procedure towards the most penalizing links in this equipment, even define the necessary changes and recommendations for future improvement. Thus, appreciate the pathological behaviour of the material and increase its availability, even increase its lifespan and improve its future design. In this context and in the light of these points, the failures are important in managing the maintenance function. Indeed, it has become important to understand the phenomena of failure and degradation of equipments in order to establish an appropriate maintenance policy for the rational use of mechanical components and move to the practice of proactive maintenance [1], do maintenance at the design [2].

  4. EMMA: The expert system for munition maintenance

    Science.gov (United States)

    Mullins, Barry E.

    1988-01-01

    Expert Missile Maintenance Aid (EMMA) is a first attempt to enhance maintenance of the tactical munition at the field and depot level by using artificial intelligence (AI) techniques. The ultimate goal of EMMA is to help a novice maintenance technician isolate and diagnose electronic, electromechanical, and mechanical equipment faults to the board/chassis level more quickly and consistently than the best human expert using the best currently available automatic test equipment (ATE). To this end, EMMA augments existing ATE with an expert system that captures the knowledge of design and maintenance experts. The EMMA program is described, including the evaluation of field-level expert system prototypes, the description of several study tasks performed during EMMA, and future plans for a follow-on program. This paper will briefly address several study tasks performed during EMMA. The paper concludes with a discussion of future plans for a follow-on program and other areas of concern.

  5. Maintenance evaluation for space station liquid systems

    Science.gov (United States)

    Flugel, Charles

    1987-01-01

    Many of the thermal and environmental control life support subsystems as well as other subsystems of the space station utilize various liquids and contain components which are either expendables or are life-limited in some way. Since the space station has a 20-year minimum orbital lifetime requirement, there will also be random failures occurring within the various liquid-containing subsystems. These factors as well as the planned space station build-up sequence require that maintenance concepts be developed prior to the design phase. This applies to the equipment which needs maintenance as well as the equipment which may be required at a maintenance work station within the space station. This paper presents several maintenance concepts for liquid-containing items and a flight experiment program which would allow for evaluation and improvement of these concepts so they can be incorporated in the space station designs at the outset of its design phase.

  6. The maintenance management for lean organization

    Directory of Open Access Journals (Sweden)

    Daniel D. GEORGESCU

    2010-12-01

    Full Text Available The goal of lean maintenance approach is to maintain organization international competitiveness. In the spirit of continuously improvement, in the paper it is shown how by adjusting some Lean manufacturing specific techniques for Total Productive Maintenance (TPM system, was born new maintenance system named Lean TPM. This is a systemic approach with three techniques, which don’t exclude specific techniques of TPM pillars, but complete them: the 7Ss as a critical first step in any improvement program; instantaneous maintenance; improvement setup operations. In the spirit of Lean principle, Lean TPM adjusts overall equipment effectiveness concept for all supply-chain from supplier to customer. Maintaining equipment in its optimal state and continually improving its productivity is the whole strategy behind Lean TPM.

  7. Analysis of the possibility of applying a condition-based maintenance model on an example of tank weapons

    Directory of Open Access Journals (Sweden)

    Igor J. Epler

    2013-12-01

    Full Text Available For any modern army it is very important to continuously maintain a high degree of operational (combat readiness (availability in order to maximize the effectiveness of the use of technical systems. Since determination and prediction of technical states and failures of technical systems in engineering, especially in armament, are difficult due to the impossibility of continuous condition monitoring with appropriate measuring equipment there is a need for a maintenance model that would be most helpful in taking timely action maintenance. In this paper, the subject of research is a model of maintenance of the M-84 tank  weapoons systems.   IntroductionThe M-84 tank is one of the most promising technical systems in the Serbian Army. Its use and modifications are foreseen in the next ten years. The  M-84 is characterized by good tactical and technical characteristics. It has a powerful 125 mm cannon, coupled 7.62 mm machine gun and 12.7 mm anti-aircraft machine gun. The M-84 tank has an automatic battery charger and a fire control system. The fire control system enables fast target tracking and stabilization of the cannon barrel, which is a prerequisite for timely and favorable effect on the target. There are certain ambiguities in the existing model of maintenance of tank weapons.   Technical diagnostics Technical diagnostics, as a part of the process of condition-based maintenance, should determine technical conditions of components or technical systems with certain accuracy at a point in time.   Maintenance strategy A maintenance strategy can be defined as a variant of a maintenance system determined by a concept, organization and character of maintenance procedures, as well as the relationship between the various levels at which maintenance is performed. It is defined for technical system parts, individual technical systems and for system maintenance as a whole. The basic maintenance strategies implemented today are: -      corrective

  8. Maintenance concept development for the Compact Ignition Tokamak

    International Nuclear Information System (INIS)

    The Compact Ignition Tokamak (CIT), located at the Princeton Plasma Physics Laboratory, will be the next major experimental machine in the US Fusion Program. Its use of deuterium-tritium (D-T) fuel requires the use of remote handling technology to carry out maintenance operations on the machine. These operations consist of removing and repairing such components as diagnostic equipment modules by using remotely operated maintenance equipment. The major equipment being developed for maintenance external to the vacuum vessel includes both bridge-mounted and floor-mounted manipulator systems. Additionally, decontamination (decon) equipment, hot cell repair facilities, and equipment for handling and packaging solid radioactive waste (rad-waste) are being developed. Recent design activities have focused on establishing maintenance system interfaces with the facility design, developing manipulator system requirements, and using mock-ups to support the tokamak configuration design. 3 refs., 8 figs

  9. Applicability of maintenance tasks, creating and refining the preventive maintenance program in nuclear power plants

    International Nuclear Information System (INIS)

    The main objective of a preventive maintenance program is to prevent or minimize equipment breakdown and to maintain equipment in a satisfactory condition for normal and/or emergency use. The document provides a method for enhancing an existing PM program to improve equipment reliability and availability while optimizing the use of availability resources. The method focuses on systematically identifying the failure modes of important components and systems and ensuring PM tasks or design changes are implemented to minimize those failures. Because the design and the design objectives of nuclear power plants have a strong influence on a maintenance program, its development should be initiated sufficiently early in the design phase. Plants are encouraged to replace periodic (time-directed) PM tasks with applicable and effective predictive maintenance (condition-monitoring and failure-finding) tasks. The maintenance means monitoring, assessing and modifying the system in order to make the necessary and desired improvements .The activity of maintenance involves a process of postimplementation revision in order to ensure that the new implemented systems meet the objectives, requirements and performances previously established. The possible errors in developing and exploiting the system must be corrected through the process of maintenance. This document describes the elements necessary to enhance a preventive maintenance program and a proper balance among these types of activities should provide a high degree of confidence that station equipment degradation is identified and corrected, equipment life is optimized, and the maintenance program is cost effective. Preventive maintenance involves changes which reduce the chance of future system failure. This program and these actions can make a significant contribution to safe and reliable plant operation. (author)

  10. Designing A Conventional Aircraft

    OpenAIRE

    Sonei, Arash

    2014-01-01

    This paper is explaining the important design phases of dimensioning an unmanned conventional aircraft from scratch and will also design one according to a few chosen requirements. The design phases discussed will be all from wing dimensioning to stability and spin recovery, aircraft performance requirements and how to select a motor which overcomes these. As well as the optimal rate of climb for improved efficiency is discussed. In the end an aircraft which manages the set requirements and i...

  11. Lightning effects on aircraft

    Science.gov (United States)

    1977-01-01

    Direct and indirect effects of lightning on aircraft were examined in relation to aircraft design. Specific trends in design leading to more frequent lightning strikes were individually investigated. These trends included the increasing use of miniaturized, solid state components in aircraft electronics and electric power systems. A second trend studied was the increasing use of reinforced plastics and other nonconducting materials in place of aluminum skins, a practice that reduces the electromagnetic shielding furnished by a conductive skin.

  12. An Aircraft Navigation System Fault Diagnosis Method Based on Optimized Neural Network Algorithm

    Institute of Scientific and Technical Information of China (English)

    Jean-dedieu Weyepe

    2014-01-01

    Air data and inertial reference system (ADIRS) is one of the complex sub-system in the aircraft navigation system and it plays an important role into the flight safety of the aircraft. This paper propose an optimize neural network algorithm which is a combination of neural network and ant colony algorithm to improve efficiency of maintenance engineer job task.

  13. Investigating a persistent odor at an aircraft seat manufacturer.

    Science.gov (United States)

    Broadwater, Kendra; de Perio, Marie A; Roberts, Jennifer; Burton, Nancy C; Lemons, Angela R; Green, Brett J; Brueck, Scott E

    2016-10-01

    An aircraft seat manufacturing company requested a NIOSH health hazard evaluation to help identify a strong odor that had persisted throughout the facility for over a year. Employees reported experiencing health effects thought to be related to the odor. We collected and analyzed area air samples for volatile organic compounds, endotoxin, bacterial and fungal metagenome, and metalworking fluid aerosol. Bulk metalworking fluid samples were analyzed for endotoxin, bacterial and fungal metagenome, and viable bacteria and fungus. We also evaluated the building ventilation systems and water diversion systems. Employees underwent confidential medical interviews about work practices, medical history, and health concerns. Based on our analyses, the odor was likely 2-methoxy-3,5-dimethylpyrazine. This pyrazine was found in air samples across the facility and originated from bacteria in the metalworking fluid. We did not identify bacteria known to produce the compound but bacteria from the same Proteobacteria order were found as well as bacteria from orders known to produce other pyrazines. Chemical and biological contaminants and odors could have contributed to health symptoms reported by employees, but it is likely that the symptoms were caused by several factors. We provided several recommendations to eliminate the odor including washing and disinfecting the metalworking machines and metalworking fluid recycling equipment, discarding all used metalworking fluid, instituting a metalworking fluid maintenance program at the site, and physically isolating the metalworking department from other departments. PMID:27494786

  14. Maintenance system improvement in cast iron foundry

    OpenAIRE

    S. Kukla

    2011-01-01

    The work presents the issue of technical equipment management in an iron foundry basing on the assumptions of the TPM system (Total Productive Maintenance). Exploitation analysis of automatic casting lines has been carried out and their work’s influence on the whole production system’s functioning has been researched. Within maintenance system improvement, implementation of autonomic service and planned lines’ review have been proposed in order to minimize the time of breakdown stoppages. The...

  15. 30 CFR 57.4561 - Stationary diesel equipment underground.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Stationary diesel equipment underground. 57... Fire Prevention and Control Installation/construction/maintenance § 57.4561 Stationary diesel equipment underground. Stationary diesel equipment underground shall be— (a) Supported on a noncombustible base; and...

  16. 30 CFR 57.14114 - Air valves for pneumatic equipment.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Air valves for pneumatic equipment. 57.14114... and Equipment Safety Devices and Maintenance Requirements § 57.14114 Air valves for pneumatic equipment. A manual master quick-close type air valve shall be installed on all pneumatic-powered...

  17. Managing Pressure Vessel Equipment as a Capital Asset.

    Science.gov (United States)

    Robinson, Glenn; Trombley, Robert; Shultes, Kenneth

    1999-01-01

    Argues the importance of treating facility pressure equipment as capital assets and discusses three steps in their management process. The following steps are discussed: understanding the condition of all major equipment; altering maintenance practices and procedures; and developing a long-term equipment strategy such as increased monitoring,…

  18. 46 CFR 28.130 - Survival craft equipment.

    Science.gov (United States)

    2010-10-01

    ... with the requirements for installation, arrangement, equipment, and maintenance contained in 46 CFR... 46 Shipping 1 2010-10-01 2010-10-01 false Survival craft equipment. 28.130 Section 28.130 Shipping... INDUSTRY VESSELS Requirements for All Vessels § 28.130 Survival craft equipment. (a) General. Each item...

  19. Maintenance Business Plans.

    Science.gov (United States)

    Adams, Matt

    2002-01-01

    Discusses maintenance business plans, statements which provide accountability for facilities maintenance organizations' considerable budgets. Discusses the plan's components: statement of plan objectives, macro and detailed description of the facility assets, maintenance function descriptions, description of key performance indicators, milestone…

  20. Reduction of Maintenance Error Through Focused Interventions

    Science.gov (United States)

    Kanki, Barbara G.; Walter, Diane; Rosekind, Mark R. (Technical Monitor)

    1997-01-01

    It is well known that a significant proportion of aviation accidents and incidents are tied to human error. In flight operations, research of operational errors has shown that so-called "pilot error" often involves a variety of human factors issues and not a simple lack of individual technical skills. In aircraft maintenance operations, there is similar concern that maintenance errors which may lead to incidents and accidents are related to a large variety of human factors issues. Although maintenance error data and research are limited, industry initiatives involving human factors training in maintenance have become increasingly accepted as one type of maintenance error intervention. Conscientious efforts have been made in re-inventing the "team" concept for maintenance operations and in tailoring programs to fit the needs of technical operations. Nevertheless, there remains a dual challenge: to develop human factors interventions which are directly supported by reliable human error data, and to integrate human factors concepts into the procedures and practices of everyday technical tasks. In this paper, we describe several varieties of human factors interventions and focus on two specific alternatives which target problems related to procedures and practices; namely, 1) structured on-the-job training and 2) procedure re-design. We hope to demonstrate that the key to leveraging the impact of these solutions comes from focused interventions; that is, interventions which are derived from a clear understanding of specific maintenance errors, their operational context and human factors components.