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. 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.

  3. Profitability Versus Construction Equipment Maintenance

    Science.gov (United States)

    2010-05-01

    E7(/(3+21(180%(5 ,QFOXGHDUHDFRGH XX-05-2010 Master’s Thesis DEC 2009 - MAY 2010 Profitability Versus Construction Equipment Maintenance...optimization of a perceived profit . This project recommends a decision support model that can be used by private and public entities alike to determine the...best fir acquisition method between rent-lease-buy and guidance for profitability optimization. Methods of life cycle cost estimating and decision

  4. 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...

  5. 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...

  6. A Qualitative Analysis of SAC Aircraft Maintenance.

    Science.gov (United States)

    1982-09-01

    A122 815 A QUALITATIVE ANALYSIS OF SAC AIRCRAFT MRINTENANCE(U) 112 AIR FORCE INST OF TECH WRIGHT-PRTTERSON AFB OH SCHOOL OF SYSTEMS AND LOGISTICS D...Wright-Patterson Air Force Base, Ohio ’ ; " ... ..... ... ... . .. .. A QUALITATIVE ANALYSIS OF SAC AIRCRAFT MAINTENANCE Douglas P. Cook, Captain... QUALITATIVE ANALYSIS OF SAC Master’s Thesis AIRCRAFT MAINTENANCE 6. PERFORMING ORG. REPORT NUMBER 7. AUTHOR(q) S. CONTRACT OR GRANT NUMBER(a) Douglas

  7. MODERN MANAGEMENT METHODS FOR EQUIPMENT MAINTENANCE

    OpenAIRE

    Ioan Cucu; Ciprian Cucu

    2009-01-01

    The concept of maintenance in the field of complex equipment wasdeveloped in the USA being quickly adopted by European countries and Japan. TheAmerican maintenance concept has the significance of creating a support system forindustrial equipment functioning. Functional maintenance is one of the most frequentused methods in maintenance management for industrial enterprises. This paper tries topresent some aspects related to the systemic approach of the functional maintenancemodel, starting fro...

  8. Aircraft Electronics Maintenance Training Simulator. Curriculum Outlines.

    Science.gov (United States)

    Blackhawk Technical Coll., Janesville, WI.

    Instructional materials are provided for nine courses in an aircraft electronics maintenance training program. Courses are as follows: aviation basic electricity, direct current and alternating current electronics, basic avionic installations, analog electronics, digital electronics, microcomputer electronics, radio communications, aircraft…

  9. Quantitative techniques for medical equipment maintenance management

    NARCIS (Netherlands)

    Ben Houria, Zeineb; Masmoudi, Malek; Al Hanbali, Ahmad; Khatrouch, Ikram; Masmoudi, Faouzi

    2016-01-01

    The maintenance department in a hospital is responsible for ensuring the safety of medical equipment and their availability while keeping the operation costs minimal. The selection of the best maintenance strategy is a key decision to reduce the equipment downtime, increase the availability, and bri

  10. Global Outsourcing of Aircraft Maintenance

    OpenAIRE

    McFadden, Michael; Worrells, D. Scott

    2012-01-01

    Before the airlines were deregulated, the majority of air carriers conducted their maintenance in-house. After deregulation, with competitive pressures mounting and airlines failing and starting up seemingly simultaneously, the outsourcing of maintenance became more prevalent. Not restricted to U.S. airlines, outsourcing maintenance has become a global practice. Factors involved in the outsourcing decision range from a startup not having the capital to develop their own in-house maintenance p...

  11. 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.

  12. 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.

  13. 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.

  14. 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.

  15. 14 CFR 91.1109 - Aircraft maintenance: Inspection program.

    Science.gov (United States)

    2010-01-01

    ... currently recommended by the manufacturer of the aircraft, aircraft engines, propellers, appliances, and... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Aircraft maintenance: Inspection program... Ownership Operations Program Management § 91.1109 Aircraft maintenance: Inspection program. Each...

  16. 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…

  17. Liver enzymes among microelectronics equipment maintenance technicians.

    Science.gov (United States)

    Upfal, M

    1992-04-01

    Equipment maintenance workers within the microelectronics industry have opportunities for occupational exposure to a variety of toxic agents. This pilot investigation compares liver enzymes in this population with that of other coworkers. Participants (n = 135) were randomly selected from a medical surveillance program at the manufacturing facility. Nine job categories were examined, including equipment maintenance workers and electronic technicians. Although abnormal liver enzymes were detected among equipment maintenance workers (odds ratio 16.4; P less than .008) and electronic technicians (odds ratio 27; P less than .0005), the numbers of participants were small (n = 8, 10). The data suggest that independent and/or interactive etiologic roles of occupation and alcohol should be further investigated. Early detection of subclinical occupational or recreational hepatotoxicity with appropriate employment of industrial hygiene control technology and/or the reduction of alcohol consumption may provide a means of preventing liver disease.

  18. 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

  19. 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...

  20. 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.

  1. 49 CFR 238.309 - Periodic brake equipment maintenance.

    Science.gov (United States)

    2010-10-01

    ... that all of the equipment's brake system pneumatic components that contain moving parts and are sealed... 49 Transportation 4 2010-10-01 2010-10-01 false Periodic brake equipment maintenance. 238.309... Maintenance Requirements for Tier I Passenger Equipment § 238.309 Periodic brake equipment maintenance....

  2. 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...

  3. [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.

  4. 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.

  5. Health maintenance facility: Dental equipment requirements

    Science.gov (United States)

    Young, John; Gosbee, John; Billica, Roger

    1991-01-01

    The objectives were to test the effectiveness of the Health Maintenance Facility (HMF) dental suction/particle containment system, which controls fluids and debris generated during simulated dental treatment, in microgravity; to test the effectiveness of fiber optic intraoral lighting systems in microgravity, while simulating dental treatment; and to evaluate the operation and function of off-the-shelf dental handheld instruments, namely a portable dental hand drill and temporary filling material, in microgravity. A description of test procedures, including test set-up, flight equipment, and the data acquisition system, is given.

  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. 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

  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. 29 CFR 1926.431 - Maintenance of equipment.

    Science.gov (United States)

    2010-07-01

    ... (CONTINUED) SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION Electrical Safety-Related Maintenance and Environmental Considerations § 1926.431 Maintenance of equipment. The employer shall ensure that all wiring... 29 Labor 8 2010-07-01 2010-07-01 false Maintenance of equipment. 1926.431 Section 1926.431...

  10. 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.

  11. 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...

  12. 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.

  13. 30 CFR 75.503 - Permissible electric face equipment; maintenance.

    Science.gov (United States)

    2010-07-01

    ...-General § 75.503 Permissible electric face equipment; maintenance. The operator of each coal mine shall... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Permissible electric face equipment; maintenance. 75.503 Section 75.503 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT...

  14. 32 CFR 935.140 - Motor vehicle maintenance and equipment.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Motor vehicle maintenance and equipment. 935.140... AND INSULAR REGULATIONS WAKE ISLAND CODE Motor Vehicle Code § 935.140 Motor vehicle maintenance and equipment. (a) Each person who has custody of a motor vehicle on Wake Island shall present that vehicle...

  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 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...

  17. 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...

  18. Maintenance of air worthiness of aircrafts

    Directory of Open Access Journals (Sweden)

    В. А. Горячев

    2000-09-01

    Full Text Available Described are modem conditions of operation of Russian civil aviation, state of aircraft stock, the main principles of maintaining air worthiness of airplanes and helicopters. Considered is a stage by stage prolongation of the service life of each specimen of aircraft with certification being obligatory

  19. 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.

  20. 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.

  1. 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.

  2. 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)

  3. 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.

  4. 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

  5. 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.

  6. 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

  7. 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.

  8. 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.

  9. 40 CFR 141.804 - Aircraft water system operations and maintenance plan.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 22 2010-07-01 2010-07-01 false Aircraft water system operations and... § 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...

  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. 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. 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

  13. 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...

  14. Airdrop of Armament and Military Equipment from Aircraft

    Directory of Open Access Journals (Sweden)

    Dražen Kovačević

    2012-10-01

    Full Text Available Air supply can be performed in two ways: by transportingthe technical equipment by transport aircraft or helicopters,and unloading upon landing and by air-dropping. The airdropcan be performed by dropping without parachutes, with parachutesand by low altitude cargo extraction. In the USA- CADS(Controlled Aerial Delivery System has been developed providingcontrol of the falling cargo via a remote controller.

  15. Development of maintenance equipment for nuclear material fabrication equipment in a highly active hot cell

    Energy Technology Data Exchange (ETDEWEB)

    Park, J. J.; Yang, M. S.; Kim, K. H. and others

    2000-09-01

    This report presents the development of a maintenance system for a highly contaminated nuclear material handling equipment at a hot-cell. This maintenance system has mainly three subsystems - a gamma-radiation measurement module for detecting a gamma-radiation level and identifying its distribution in-situ, a dry-type decontamination device for cleaning up contaminated particles, and a maintenance chamber for isolating contaminated equipment. The mechanical design considerations, controller, capabilities and remote operation and manipulation of the maintenance system are described. Such subsystems developed were installed and tested in the IMEF (Irradiated Material Examination Facility) M6 hot-cell after mock-up tests and performed their specific tasks successfully.

  16. 78 FR 3356 - Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

    Science.gov (United States)

    2013-01-16

    ... Directives; Various Aircraft Equipped With Wing Lift Struts AGENCY: Federal Aviation Administration (FAA... airworthiness directive (AD) that applies to certain aircraft equipped with wing lift struts. The existing AD... Joint Aircraft System Component (JASC)/Air Transport Association (ATA) of America Code 57, Wings....

  17. 78 FR 79599 - Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

    Science.gov (United States)

    2013-12-31

    ... 99-01-05 R1] RIN 2120-AA64 Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts... aircraft equipped with wing lift struts. The list of affected airplanes in the Applicability section is incorrect. Several Piper Aircraft, Inc. Model PA-18 airplanes were inadvertently omitted from the final...

  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. 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...

  20. 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.

  1. 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.

  2. 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

  3. 78 FR 73997 - Airworthiness Directives; Various Aircraft Equipped with Wing Lift Struts

    Science.gov (United States)

    2013-12-10

    .... SUMMARY: We are revising Airworthiness Directive (AD) 99-01-05 for certain aircraft equipped with wing... unseal a sealed wing lift strut should be coordinated with the Atlanta Aircraft Certification Office (ACO...)(2) of this AD that occurs later, remove the wing lift struts following Piper Aircraft...

  4. 30 CFR 75.512 - Electric equipment; examination, testing and maintenance.

    Science.gov (United States)

    2010-07-01

    ...-General § 75.512 Electric equipment; examination, testing and maintenance. All electric equipment shall be... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Electric equipment; examination, testing and maintenance. 75.512 Section 75.512 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT...

  5. 30 CFR 75.506-1 - Electric face equipment; permissible condition; maintenance requirements.

    Science.gov (United States)

    2010-07-01

    ... Equipment-General § 75.506-1 Electric face equipment; permissible condition; maintenance requirements. (a... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Electric face equipment; permissible condition; maintenance requirements. 75.506-1 Section 75.506-1 Mineral Resources MINE SAFETY AND HEALTH...

  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. 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.``

  8. Changes in the mean hearing threshold levels in military aircraft maintenance conscripts.

    Science.gov (United States)

    Park, Won-Ju; Moon, Jai-Dong

    2016-11-01

    Aircraft maintenance crews are constantly exposed to severe aircraft noise. The purpose of this study was to verify whether noise from aircraft adversely affects the hearing threshold levels (HTLs) of aircraft maintenance conscripts during their 2 years of mandatory military service. This study included 3,000 male aircraft maintenance conscripts who work in the military runway area. We measured and analyzed HTLs at 2-4 kHz. The duration of exposure to noise increased with an increase in rank; however, HTLs showed a tendency to decrease. We attributed such contradicting results to the learning effect and adaptation to military service. However, we suspected that sudden deafness in 6 conscripts (0.2%) was due to loud noise in the runway area during military service. The effectiveness of the hearing conservation program for short-term military service personnel could be increased by focusing on preventing sudden deafness and preenlistment baseline audiogram tests.

  9. 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...

  10. 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...

  11. Availability of Aircraft Subject to Imperfect Preventive Maintenance

    Science.gov (United States)

    1990-09-01

    maintenance model for determining an improved preventive maintenance policy, and the strength of simulating the operating environment when determining... preventive maintenance schedule and the use of simulation as a driver for the model. For those systems that are subject to preventive maintenance, the model...decrease in effectiveness. It further looks at the feasibility of using an imperfect preventive maintenance model for determining an improved

  12. 30 CFR 77.502 - Electric equipment; examination, testing, and maintenance.

    Science.gov (United States)

    2010-07-01

    ..., testing, and maintenance. Electric equipment shall be frequently examined, tested, and properly maintained... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Electric equipment; examination, testing, and maintenance. 77.502 Section 77.502 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT...

  13. 30 CFR 75.505 - Mines classed gassy; use and maintenance of permissible electric face equipment.

    Science.gov (United States)

    2010-07-01

    ... Electrical Equipment-General § 75.505 Mines classed gassy; use and maintenance of permissible electric face... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Mines classed gassy; use and maintenance of permissible electric face equipment. 75.505 Section 75.505 Mineral Resources MINE SAFETY AND...

  14. 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.

  15. Supporting industrial equipment development through a set of design-for-maintenance guidelines

    NARCIS (Netherlands)

    Mulder, W.; Basten, R.J.I.; Jauregui Becker, J.M.; Blok, J.; Hoekstra, S.; Kokkeler, F.G.M.; Marjanovic, Dorian; Storga, Mario; Pavkovic, Neven; Bojcetic, Nenad

    2014-01-01

    This paper presents a leaflet with design-for-maintenance guidelines. It aims at supporting developers of industrial equipment in their design-for-maintenance practices. The use of this leaflet should lead to increased attention for design-for-maintenance aspects and to improve idea generation. The

  16. 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, ...

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  1. 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

  2. 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.

  3. 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.

  4. 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.

  5. 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...

  6. Supporting industrial equipment development through a set of design-for-maintenance guidelines

    OpenAIRE

    W. Mulder; Basten, R.J.I.; Jauregui Becker, J.M.; Blok, J.; Hoekstra, S.; Kokkeler, F.G.M.; Marjanovic, Dorian; Storga, Mario; Pavkovic, Neven; Bojcetic, Nenad

    2014-01-01

    This paper presents a leaflet with design-for-maintenance guidelines. It aims at supporting developers of industrial equipment in their design-for-maintenance practices. The use of this leaflet should lead to increased attention for design-for-maintenance aspects and to improve idea generation. The way of presenting the guidelines to the user should ensure that the support will be adopted in practice. The feedback that we have received from industrial partners indicates that the support is us...

  7. 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...

  8. 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

  9. 30 CFR 77.516 - Electric wiring and equipment; installation and maintenance.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Electric wiring and equipment; installation and maintenance. 77.516 Section 77.516 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF... OF UNDERGROUND COAL MINES Electrical Equipment-General § 77.516 Electric wiring and...

  10. 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.; De Schutter, B.; 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

  11. 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.

  12. 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

  13. 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.

  14. 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.

  15. Human Factors Issues In Aircraft Maintenance And Inspection

    Science.gov (United States)

    1990-11-01

    reliability data system ( NPRDS ) " Maintenance personnel performance simulation (MAPPS) * Cognitive environment simulation (CES) * Criteria for equating...System ( NPRDS ) The Nuclear Plant Reliability Data System is a voluntary reporting system sponsored and maintained by the U.S. commercial nuclear power...to 1974. NPRDS data can be recalled by hardware description, vendor, plant, type of failure, source, timeframe, or combinations for use in risk

  16. Aircraft Maintenance Wartime Command and Control: The Might to Fight.

    Science.gov (United States)

    1988-04-01

    Administration from the University of Northern Colorado in 1980. She completed Squadron Officer School in residence in 1981 and is a member of the ACSC...aavantaqes or centraizea ana aecentraiizea decision maKing in wartime tactica! ar:rarz maintenance. Three principies help in this aiscussion: tne decisions...weapons technicians, very few augmentees are neeaea to go to war. The advantages gained from this oecentrai ization rit .ne principie of cohesiveness

  17. 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.

  18. Standard Practice for Total Immersion Corrosion Test for Aircraft Maintenance Chemicals

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2009-01-01

    1.1 This practice covers the determination of the corrosiveness of aircraft maintenance chemicals on aircraft metals with time under conditions of total immersion by a combination of weight change measurements and visual qualitative determination of change. 1.2 The values stated in SI units are to be regarded as standard. The values in parentheses are for information only. 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 of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

  19. 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.

  20. 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...

  1. 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

  2. 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.

  3. 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.)

  4. Material & equipment, procurement & maintenance: Impact on blood safety.

    Science.gov (United States)

    Emmanuel, Jean C

    2010-01-01

    Blood Transfusion Safety is dependent on effectively organised and managed blood services, which have adequate financial resources, skilled manpower, appropriate infrastructure and quality management systems in place. 80% of the world's population has access to 20% of the supply blood products, of which little is consistently safe. HIV highlighted the importance of blood safety. The lack of effective blood services in low human development index (LHDI), developing countries, has lead to international funding and capacity building for more than three decades. The initial strategies focused on providing HIV testing reagents to prevention transmission, however this only addresses one part of blood safety. Blood safety is not only dependent on preventing HIV transmission. In many populations there are other infectious agents, which have a higher prevalence. Ensuring the correct blood is provided to the patient depends on: well managed services with effective leadership and adequate budgets; capacity building and retention of skilled experienced staff; availability of laboratory equipment, correctly maintained; blood cold chain systems; procedures for tendering, purchasing and ensuring an unbroken supply of reagents and consumables; and quality management systems. Barriers for simplified effective tendering, procurement and contracting require urgent attention and coordination of all funding organisations to ensure an unbroken supply of reagents.

  5. 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.

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

    OpenAIRE

    Zied Hajej; Nidhal Rezg; Ali Gharbi

    2015-01-01

    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 ...

  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. 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.

  9. 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.

  10. Standard Practice for Corrosion of Aircraft Metals by Total Immersion in Maintenance Chemicals

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2009-01-01

    1.1 This practice covers the determination of the corrosiveness of tank-type aircraft maintenance chemicals on aircraft metals and the corrodibility of metals in these maintenance chemicals with time. The determination is made under conditions of total immersion by a combination of weight change measurements and visual qualitative determinations of change. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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 of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautions, see Section 6.

  11. CONTROL SYSTEM FOR UNMANNED AIRCRAFT EQUIPPED WITH ROBOTICS ARM

    Directory of Open Access Journals (Sweden)

    Alexei A. Margun

    2014-11-01

    Full Text Available The paper deals with the problem of control system synthesis for multi rotational UAV equipped with robotics arm. Control algorithm is proposed based on the method of feedback linearization and synthesis of proportional-differential controller with the real time computation of the inertia tensor and center of mass changes and compensation of the reactive torque generated by the dynamics of the manipulator. Quadrocopter with attached articulated manipulator is selected as a model of the control object. Systems of equations describing the behavior of considered dynamical system are obtained according to the Newton and Euler-Lagrange laws. Expressions are offered, defining the inertia tensor and the position of the system center of mass depending on the current position of the manipulator, and the torque acting on the quadrocopter from the manipulator. Feedback linearization with arm influence compensation on quadrocopter is applied for the resulting nonlinear coupled system. As a result, robot dynamics equations have been converted to a linear stationary system. Converted system control is achieved by a proportional-differential controller. Examined system simulation is done with control method described in the paper and the classical method based on a proportional-differential controller. Simulation results confirm the effectiveness of the proposed approach and demonstrate that the proposed approach provides higher accuracy of the tracking error, than control method by means of proportional-differential regulator.

  12. 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.

  13. The potential risk of communication media in conveying critical information in the aircraft maintenance organisation: a case study

    Science.gov (United States)

    Shukri, S. Ahmad; Millar, R. M.; Gratton, G.; Garner, M.

    2016-10-01

    In the world of aircraft maintenance organisation, verbal and written communication plays a pivotal role in transferring critical information in relation to aircraft safety and efficiency. The communication media used to convey the critical information between departments at an aircraft maintenance organisation have potential risk in misunderstanding of the information. In this study, technical and non-technical personnel from five different departments at an aircraft maintenance organisation were interviewed on the communication media they normally utilised to communicate six different work procedures that are closely related to aircraft safety and efficiency. This is to discover which communication media pose higher risk in misunderstanding critical information. The findings reveal that written communication pose higher risk of misinterpretation compared with verbal communication when conveying critical information between departments.

  14. 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.

  15. 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…

  16. 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.

  17. Broadband electromagnetic sensors for aircraft lightning research. [electromagnetic effects of lightning on aircraft digital equipment

    Science.gov (United States)

    Trost, T. F.; Zaepfel, K. P.

    1980-01-01

    A set of electromagnetic sensors, or electrically-small antennas, is described. The sensors are designed for installation on an F-106 research aircraft for the measurement of electric and magnetic fields and currents during a lightning strike. The electric and magnetic field sensors mount on the aircraft skin. The current sensor mounts between the nose boom and the fuselage. The sensors are all on the order of 10 cm in size and should produce up to about 100 V for the estimated lightning fields. The basic designs are the same as those developed for nuclear electromagnetic pulse studies. The most important electrical parameters of the sensors are the sensitivity, or equivalent area, and the bandwidth (or rise time). Calibration of sensors with simple geometries is reliably accomplished by a geometric analysis; all the sensors discussed possess geometries for which the sensitivities have been calculated. For the calibration of sensors with more complex geometries and for general testing of all sensors, two transmission lines were constructed to transmit known pulsed fields and currents over the sensors.

  18. 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.

  19. 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.

  20. The adaptation of sustainable biojet fuels and its effect on aircraft engine maintenance

    Science.gov (United States)

    Mohd Noh, H.; Rodrigo, G. A.; Rahman, N. A. Abdul

    2016-10-01

    Aviation industries are looking into several resources for renewable and sustainable energy. Among those attention is focused in biojet fuel. This paper engages the issue of biojet fuel emissions that increase the environmental concern in the air transport sector. The paper presents the use of biojet fuel and its effect on aircraft engine maintenance through preliminary data collections, and a review of its development process in operations for time and goal. As conclusion, airlines management needs to adapt and adopt the transition to alternative fuels, especially given the global biofuel trend emerging due to the authority approval.

  1. 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.

  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. Remote Expertise for Maintenance: An Application of Telecommunications Technology to Improve Shipboard Equipment Readiness

    Science.gov (United States)

    1984-10-01

    34°’’ ’^^"^-^ ’’’’’ shore-based’ ; xpert maintLa’nce tec’niSnf de?p ^in. th^’^ M ^^l" ■’■^"’°’^ ’’’^ troubleshooting; and (3) conducting studies to 1,1...Survey Respondents 7 2. Applicability Scores for Telecommunications Accessory Devices Within and Across Categories of Equipment Components...maintenance personnel. The two telecommunications linkage configurations tested in this study were audio plus video and audio with video as needed

  4. Proposal for the award of a contract for the maintenance of industrial transport and handling equipment

    CERN Document Server

    European Organization for Nuclear Research

    2002-01-01

    This document concerns the award of a contract for the maintenance of industrial transport and handling equipment. Following a market survey carried out among 145 firms in sixteen Member States, a call for tenders (IT-3049/ST) was sent on 8 May 2002 to two firms and four consortia, one consortium consisting of three firms and three consortia consisting of two firms, in three Member States. By the closing date, CERN had received six tenders from six consortia in three Member States. The Finance Committee is invited to agree to the negotiation of a contract with the consortium CEGELEC (FR), SPIE-TRINDEL (FR), ELECTRON (NL) and FENWICK-LINDE (FR), the lowest bidder after alignment, for the maintenance of industrial transport and handling equipment for a total amount of 2 973 280 euros (4 346 900 Swiss francs), covering an initial period of three years starting on 1 October 2002, subject to revision for inflation from 1 October 2005. The contract will include an option for two further one-year extensions beyond t...

  5. The Impact Of Occupational Hazards In Workplaces - Maintenance, A Main Target For Ensuring The Safety Of Working Equipment

    Science.gov (United States)

    Antonov, Anca Elena; Buica, Georgeta; Darabont, Doru Costin; Beiu, Constantin

    2015-07-01

    For use of work equipment having the economic performance and the highest level of safety, it must be ensured that it complies with the conditions set by the manufacturer in terms of putting into service, use and maintenance operations, ensuring appropriate technical and environmental requirements, including appropriate measures and means of protection. The research aimed to identify and analyze the occupational hazards associated to maintenance operations, in terms of the history of the adjustments, maintenance, cleaning and repair, including the case that occur after the incidents, capital repairs and upgrades. The results of the research consisted in the development of recommendations on the effective management of maintenance activities of work equipment and a software model to enable an efficient management of maintenance, as a tool for occupational hazards in companies - premise for increasing the competitiveness of employers in the market economy.

  6. 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.

  7. 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.

  8. Current and future inspection and maintenance challenges

    Science.gov (United States)

    Bhagat, Pramode K.; Bessette, Lorence; Leonelli, Fredrick

    1996-11-01

    Ever-increasing diversity of civilian aircraft inventory and continued technological advancements in aircraft materials, aircraft flight control equipment, testing equipment, and software methodologies are impacting aircraft inspection and maintenance practices. Current procedures deal mainly with issues related to structural and electrical or electronic integrity to assure continued airworthiness of operational aircraft. Techniques and methodologies for these are widely available, and training needs are well defined. Advances in technology, however, are yielding new and different aircraft, which require more sophisticated electronic instruments for navigation and control.A major issue is the continued reliability and airworthiness of avionics and development of adequate safeguards for these aircraft. Built-in test equipment, maintenance across terminals, and data bases defining inspection needs that are based on operational data, and software integrity, are also rapidly becoming important considerations in aircraft maintenance. In this era of declining funds and personnel resources, a cost-effective approach requires a fresh look at all phases of the current inspection and maintenance practices, including oversight and management. This paper provides a perspective on issues and challenges facing a civilian regulatory agency, specifically, the aircraft maintenance division in the FAA.

  9. 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...

  10. 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

  11. TBM设备维护技术%On maintenance technique for TBM equipment

    Institute of Scientific and Technical Information of China (English)

    沈希富

    2012-01-01

    为将TBM设备保持在最优的运行状态下,从润滑、内外密封检查、润滑油系统检查、刀盘检查等方面论述了预防性维护需要检查的项目,以期为目前大力推广的TBM施工作业提供指导。%In order to maintain the TBM equipment within the optimal operation state, the study indicates the inspection program for the prevention maintenance from the lubrication, the checking for the interior and exterior sealing, the systematic inspection over the lubricating oil and cutterhead checking, so as to provide the direction for the at TBM construction recently.

  12. TECHNOLOGY MANAGEMENT IN THE PUBLIC HEALTH SECTOR: PROFESSIONAL VIEW FROM EQUIPMENT MAINTENANCE EXPERTS

    Directory of Open Access Journals (Sweden)

    M.O. Kachieng’a

    2012-01-01

    Full Text Available South Africa has tried various strategies to improve access, quality and cost-efficiency in the health care delivery systems. However it is clear that the optimal approach has yet to be found. It has been recognised that health technology is an important element of this transformation, and will continue to play a vital role.
    It is almost evident that the way health technology is managed in health care institutions directly affects the quality of treatment patients receive. Although strategic importance of technology in health care has been documented widely in scientific literature; technology planning, procurement and management have not received the attention they deserve in the transformation of health care services in the country.
    The survey discussed in this paper investigated health care equipment maintenance problems and associated technological constraints from point of view of health technology managers, biomedical and clinical engineers. It also provides recommendations for competitive utilisation of technology in the public health sector.

  13. Heavy equipment maintenance wastes and environmental management in the mining industry.

    Science.gov (United States)

    Guerin, Turlough F

    2002-10-01

    Maintenance wastes, if not managed properly, represent significant environmental issues for mining operations. Petroleum hydrocarbon liquid wastes were studied at an Australian site and a review of the literature and technology vendors was carried out to identify oil/water separation technologies. Treatment technologies and practices for managing oily wastewater, used across the broader mining industry in the Asia-Pacific region, were also identified. Key findings from the study were: (1) primary treatment is required to remove grease oil contamination and to protect secondary oily wastewater treatment systems from being overloaded; (2) selection of an effective secondary treatment system is dependent on influent oil droplet size and concentration, suspended solids concentration, flow rates (and their variability), environmental conditions, maintenance schedules and effectiveness, treatment targets and costs; and (3) oily wastewater treatment systems, based on mechanical separation, are favoured over those that are chemically based, as they simplify operational requirements. Source reduction, through housekeeping, equipment and reagent modifications, and segregation and/or consolidation of hydrocarbon waste streams, minimizes treatment costs, safety and environmental impact.

  14. Architecture and Key Techniques of Augmented Reality Maintenance Guiding System for Civil Aircrafts

    Science.gov (United States)

    hong, Zhou; Wenhua, Lu

    2017-01-01

    Augmented reality technology is introduced into the maintenance related field for strengthened information in real-world scenarios through integration of virtual assistant maintenance information with real-world scenarios. This can lower the difficulty of maintenance, reduce maintenance errors, and improve the maintenance efficiency and quality of civil aviation crews. Architecture of augmented reality virtual maintenance guiding system is proposed on the basis of introducing the definition of augmented reality and analyzing the characteristics of augmented reality virtual maintenance. Key techniques involved, such as standardization and organization of maintenance data, 3D registration, modeling of maintenance guidance information and virtual maintenance man-machine interaction, are elaborated emphatically, and solutions are given.

  15. A Study to Identify the Optimum Method of Providing Biomedical Engineering/Maintenance Support of Radiologic Equipment at General Leonard Wood Army Community Hospital

    Science.gov (United States)

    1988-01-01

    This study was done to determine the optimum method of providing biomedical engineering /maintenance support of diagnostic radiologic equipment at...General Leonard Wood Army Community Hospital (GLWACH). The study concluded that the optimum method of providing biomedical engineering /maintenance

  16. 煤矿机电设备的维护保养%The Maintenance of Coal Mine Electric Equipment

    Institute of Scientific and Technical Information of China (English)

    席文财

    2011-01-01

    煤矿机电设备的维护保养是设备管理中的重要环节,是技术人员的主要工作内容之一.一台精心维护的设备可以在较长的时间保持良好的性能,而忽视了维护保养.就会在很短的时间内损坏甚至报废及发生事故,本文主要阐述了煤矿机电设备的维护保养要求和设备维护保养制度等问题.%The repair and maintenance of coal mine electrical equipment is the important part of equipment management and is one of technician's main work.Well-maintained equipments can maintain a good performance in a long period of time.While if the maintenance is ignored, the equipment will be damaged in a short period of time or even ruined and there tend to be accidents.The paper mainly discussed the requirement of maintenance of coal mine electrical equipment and the system of maintenance.

  17. 33 CFR 150.502 - What are the maintenance and repair requirements for lifesaving equipment?

    Science.gov (United States)

    2010-07-01

    ... periodic maintenance; (4) A diagram of lubrication points with the recommended lubricants; (5) A list of... deepwater port may have its own onboard planned maintenance program for maintenance and repair that...

  18. Discussion on maintenance technology of medical equipment electronic equipment%医疗器械电子设备的维修技术探讨

    Institute of Scientific and Technical Information of China (English)

    黄扬; 蒋延丰

    2016-01-01

    随着我国社会主义现代化建设的不断发展,我国的医疗卫生水平得到了极大的提升。作为医院日常工作中极为重要的组成部分,医疗器械电子设备的维修与管理直接影响着临床工作的顺利开展,其在医院的诊断与治疗过程中发挥着不可替代的作用,引起了医学界的高度重视。本文将着重对医疗器械电子设备普遍存在的问题进行深入分析,并提出相应的维修技术策略,为医院的医疗器械电子设备的维修提供一个参考与借鉴。%With thecontinuous development of China's socialist modernization construction,China's medical and health level has been greatly improved.The daily work of the hospital as a very important part, maintenance and management of medical equipment electronic equipment directly affects the smooth development of clinical work,the in the process of diagnosis and treatment of hospital plays a irreplaceable role,caused the great attention of the medical profession.This article will focus on the medical equipment,electronic equipment,the general problems of the in-depth analysis,and put forward the corresponding technical strategies for the maintenance of medical equipment for the hospital to provide a reference for the maintenance of electronic equipment.

  19. Semiconductor Equipment Predictive Maintenance Techniques%半导体设备预测性维修技术

    Institute of Scientific and Technical Information of China (English)

    陈宛峰; 王奕

    2012-01-01

    Predictive maintenance is the focus of research in the maintenance field over the years,the paper is starting from the general point for predictive maintenance,analysis and comparison the strengths and weaknesses of the corrective maintenance,preventive maintenance and predictive maintenance,and lists some semiconductor equipment predictive maintenance measures.Semiconductor equipment production is pipeline operations,any equipment malfunction or failure will bring to the enterprise discontinued,resulting in huge losses.Therefore,we will monitor the key equipment,predict maintenance,elimate the hidden fault,and to avoid major consequences of the disaster.Predictive maintenance is a state-based maintenance,The machine is running,its main site on a regular basis(or continuous) state monitoring and fault diagnosis,determine the status of the equipment which,to predict the future development trend of the equipment status,according to the status of the development trend of the equipment and possible failurmodes,pre-established predictive maintenance programs,to determine the machine to start the repair time,contents,methods,and the necessary technical and material support.Predictive maintenance set equipment condition monitoring,fault diagnosis,failure(status) predicted that maintenance decision.%预测性维修是多年来维修领域研究的重点问题,文章从一般预测维修的论点出发,分析比较了修复性维修、预防维修和预测性维修的优缺点,并列举了一些半导体设备预测性维修的措施。半导体设备生产都是流水线作业,生产中任何一台设备发生故障或者失败都会给企业带来停产,造成巨大损失。所以要对重点设备、关键设备进行监控,进行预知性维修,消除隐藏故障,避免发生重大灾难后果。预测性维修是以状态为依据的维修,在机器运行时,对它的主要部位进行定期(或连续)的状态监测和故障诊断,判定装备所处的状

  20. 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...

  1. ICP设备的使用与维护%Use and Maintenance of ICP Equipment

    Institute of Scientific and Technical Information of China (English)

    吴海

    2013-01-01

    介绍了电感耦合等离子(ICP)刻蚀系统的刻蚀原理,分析了电感耦合等离子刻蚀系统在刻蚀晶圆的过程中遇到的刻蚀速率和刻蚀均匀性等方面的问题,具体分析了刻蚀速率和刻蚀均匀性的影响因素.同时,描述了设备在使用过程中经常遇到的一些故障现象,对这些故障现象发生的原因进行了详细地分析,根据分析的结果给出了故障的具体解决办法.最后,对电感耦合等离子刻蚀系统在日常使用过程中的保养和维护提出了一些建议,注重日常的保养和维护可大大降低设备的故障率.%The principle of the inductive couple plasma (ICP) etching system was introduced, some situations about etching rate and etching uniformity that appeared during etching wafers by the inductive couple plasma etching system were analyzed and the influencing factors of the etching rate and etching uniformity were analyzed. At the same time, some phenomena of trouble when using the equipments were described, then the reasons of trouble were analyzed. Based on the results, the solutions of trouble were provided. Finally, during daily use of inductive couple plasma etching system, some suggestions about maintenance were giving, laying stress on daily maintenance can greatly reduce fault rate.

  2. Robot Based Preventive Maintenance System for In-Service Inspection of Equipments

    Directory of Open Access Journals (Sweden)

    Vimal Upadhyay

    2015-03-01

    Full Text Available The current tendency in the petrochemical plants and Aerospace industry is to save weight and life of the equipments in the processing units, in order to reduce costs and to ensure remaining life of components. The world of today is improving with respect to new technologies. As a result, new composites are added to material for gaining a new shape and structure of material. This has made it compulsory for new innovative in non destructive testing specially in ultrasonic inspection, from conventional ultrasonic based on pulse echo method to phased array methods. In parallel to this innovative in ultrasonic, mechanical manipulator have evolved for grinding and take a setup to unapproachable zones. Industrial robot with ultrasonic inspection developed in this paper, with the collaboration of Indian Oil Corporation, Faridabad, India. Which are bringing reliability, durability, accuracy, flexibility, good maintenance and reproducibility for different sizing components to in-service inspection? This paper focused on the evolution of in-service ultrasonic probe with mechanical manipulator in non destructive testing. This evolution system has led to the current scenario systems, where a perfect combination of innovative methods in ultrasonic techniques and robots is meet to our expected delivers.

  3. 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

  4. Discussion on the Condition Based Maintenance of Electrical Equipment%论述电气设备的状态维修技术

    Institute of Scientific and Technical Information of China (English)

    孟令奇

    2011-01-01

    With the development of scientific technology, the electrical equipment inspection and maintenance technology have also greatly improved.Through the analysis of the advantages and disadvantages of electrical equipment periodical maintenance and fault maintenance, the paper proposed the necessarity of electrical equipment condition based maintenance.%随着科学技术的发展,电气设备检测维护技术也大大提高,通过分析电气设备定期维修和故障维修的优点和弊端,提出了电气设备状态维修技术发展的必然性.

  5. 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.

  6. 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.

  7. 46 CFR 199.190 - Operational readiness, maintenance, and inspection of lifesaving equipment.

    Science.gov (United States)

    2010-10-01

    ... periodic maintenance. (iv) A diagram of lubrication points with the recommended lubricants. (v) A list of... planned maintenance program that includes the items listed in that paragraph. (c) Spare parts and repair... instructions or as set out in the shipboard planned maintenance program. (2) Launching appliances must...

  8. A Framework for Intelligent Condition-based Maintenance of Rotating Equipment using Mechanical Condition Monitoring

    Directory of Open Access Journals (Sweden)

    Tahan B. Mohammadreza

    2014-07-01

    Full Text Available The ideal end result of maintenance strategy is to increase profitability, improve product quality and ensure safety conditions. In condition-based maintenance (CBM, asset health is monitored regularly to maximize reliability and availability by determining necessary maintenance at the right time. Review of recent studies shows most of developed approaches propose a standalone system for each stage of maintenance system. In order to standardize a generic architecture for machinery CBM, this paper attempts to introduce an intelligent framework consisting of several functional modules, starting from data acquisition and ending to advisory generation, with the emphasis on approaches of condition monitoring and maintenance decision-making.

  9. [Reference the YY/T 0841-2011 standard to improve preventive maintenance of medical electrical equipment and experience].

    Science.gov (United States)

    Liu, Xiang; Ge, Bin; Liu, Jinchu

    2014-09-01

    In this paper, we interpret the new YY/T 0841-2011 standard and contrast the difference between it and GB9706.1-2007 standard. Then, we improved the current preventive maintenance work. After the improvement, we not only have more effective detection of the electrical safety performance of all kinds of medical electrical equipment, but also reduce the workload of clinical engineers, improve efficiency, and reduce the risk of electrical shock.

  10. 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.

  11. Aircraft

    Science.gov (United States)

    Hibbs, B.D.; Lissaman, P.B.S.; Morgan, W.R.; Radkey, R.L.

    1998-09-22

    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 gases 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. 31 figs.

  12. 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.

  13. 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, government recommendations, and the need for improved operational efficiency are requiring airlines to review their "on-condition" maintenance...

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

    Science.gov (United States)

    2010-01-01

    ... certificated mechanic. (c) Notwithstanding paragraph (b)(3) of this section, after maintenance, preventive... its manual that the signature of an authorized certificated mechanic or repairman constitutes...

  15. Advanced technologies for maintenance of electrical systems and equipment at the Savannah River Site Defense Waste Processing Facility

    Energy Technology Data Exchange (ETDEWEB)

    Husler, R.O. (Westinghouse Savannah River Co., Aiken, SC (United States)); Weir, T.J. (Pentek, Inc., Coraopolis, PA (United States))

    1991-01-01

    An enhanced maintenance program is being established to characterize and monitor cables, components, and process response at the Savannah River Site, Defense Waste Processing Facility. This facility was designed and constructed to immobilize the radioactive waste currently stored in underground storage tanks and is expected to begin operation in 1993. The plant is initiating the program to baseline and monitor instrument and control (I C) and electrical equipment, remote process equipment, embedded instrument and control cables, and in-cell jumper cables used in the facility. This program is based on the electronic characterization and diagnostic (ECAD) system which was modified to include process response analysis and to meet rigid Department of Energy equipment requirements. The system consists of computer-automated, state-of-the-art electronics. The data that are gathered are stored in a computerized database for analysis, trending, and troubleshooting. It is anticipated that the data which are gathered and trended will aid in life extension for the facility.

  16. Test and Evaluation of Ultrasonic Additive Manufacturing (UAM) for a Large Aircraft Maintenance Shelter (LAMS) Baseplate

    Science.gov (United States)

    2015-03-26

    TEST AND EVALUATION OF ULTRASONIC ADDITIVE MANUFACTURING (UAM) FOR A LARGE AREA MAINTENANCE...States Government. AFIT-ENV-MS-15-M-158 TEST AND EVALUATION OF ULTRASONIC ADDITIVE MANUFACTURING FOR A LARGE AREA MAINTENANCE SHELTER...iv AFIT-ENV-MS-15-M-158 Abstract Additive manufacturing is an exciting new manufacturing technology that could have application to Air Force

  17. 30 CFR 75.1914 - Maintenance of diesel-powered equipment.

    Science.gov (United States)

    2010-07-01

    ... the equipment is operated. (d) The intake air filter on diesel-powered equipment shall be replaced or serviced, by a person who is trained to perform this task, when the intake air pressure drop device so indicates or when the engine manufacturer's maximum allowable air pressure drop level is exceeded....

  18. 机务人员疲劳致因影响分析%Analysis of Fatigue Causes for Aircraft Maintenance Personnel

    Institute of Scientific and Technical Information of China (English)

    张晓全; 潘晶; 王欢; 刘畅

    2013-01-01

    It was held by the authors that fatigue can seriously impact aircraft maintenance activities, and analyzing fatigue causes of maintenance personnel can effectively prevent fatigue from setting in. In order to analyze main fatigue causes and their effects on the activities in a certain aircraft maintenance factoy in China,a method combining the methods of DEMATEL and ANP was worked out. The empirical results show that health status, scheduling system, staffing, sleeping are playing critical roles. In view of four key factors above, countermeasures are proposed to reduce fatigue risk.%机务人员疲劳严重影响飞机维修活动的安全进行,分析机务人员疲劳致因有助于有效防止疲劳引起的人为差错.为确定疲劳致因的影响关系和重要程度,结合中国某维修厂的具体情况,将决策实验与评价实验室方法(DEMATEL)和网络分析法(ANP)相结合,来确定主要疲劳致因的影响作用.计算结果显示,健康状态、排班制度、人员岗位安排以及睡眠状况为该维修厂主要疲劳致因.鉴于以上4个关键的疲劳致因,提出相应的缓解措施,从而实现降低疲劳风险的目的.

  19. 14 CFR 61.45 - Practical tests: Required aircraft and equipment.

    Science.gov (United States)

    2010-01-01

    ... limited, primary, or light-sport category. (2) At the discretion of the examiner who administers the..., or light-sport category, but that otherwise meets the requirements of paragraph (a)(1) of this... each person to operate the aircraft safely; and (iv) Cockpit and outside visibility adequate...

  20. [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.

  1. Parameter Estimation of a Multistate Model for an Aging Piece of Equipment under Condition-Based Maintenance

    Directory of Open Access Journals (Sweden)

    Qihong Duan

    2012-01-01

    Full Text Available We study a multistate model for an aging piece of equipment under condition-based maintenance and apply an expectation maximization algorithm to obtain maximum likelihood estimates of the model parameters. Because of the monitoring discontinuity, we cannot observe any state's duration. The observation consists of the equipment's state at an inspection or right after a repair. Based on a proper construction of stochastic processes involved in the model, calculation of some probabilities and expectations becomes tractable. Using these probabilities and expectations, we can apply an expectation maximization algorithm to estimate the parameters in the model. We carry out simulation studies to test the accuracy and the efficiency of the algorithm.

  2. 电力设备传统检修的弊端与状态检修方式的应用%The Defects of the Traditional Maintenance of Electric Power Equipment and the Application of the Condition Based Maintenance

    Institute of Scientific and Technical Information of China (English)

    张磊

    2015-01-01

    In this paper, the concept of power equipment fault is described, the shortcomings of the traditional maintenance method, and the power equipment condition based maintenance mode of the application and state maintenance way of thinking.%本文对电力设备故障概念进行了阐述,分析了传统检修方法的弊端,探讨了电力设备状态检修方式的应用和状态检修的思维方式.

  3. 46 CFR 109.301 - Operational readiness, maintenance, and inspection of lifesaving equipment.

    Science.gov (United States)

    2010-10-01

    ... diagram of lubrication points with the recommended lubricants; (v) A list of replaceable parts; (vi) A... program that includes the items listed in that paragraph. (3) If lifeboats, rescue boats or rigid... instructions, or as set out in the shipboard planned maintenance program. (2) Launching appliances must...

  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. 76 FR 32906 - Inspection, Repair, and Maintenance; Driver-Vehicle Inspection Report for Intermodal Equipment

    Science.gov (United States)

    2011-06-07

    ... a $.02 transaction cost is incurred by the IEP to retrieve the USDOT number through an electronic... the GIER [Global Intermodal Equipment Registry] system to retrieve the USDOT number at a transaction cost of $.02. For an estimated 38,491,440 no-defect DVIRs per year, IEPs would incur over...

  6. Evaluation of Aircraft Battery Charge, Discharge, and Analyzation Requirements for Ground Support Equipment.

    Science.gov (United States)

    1984-07-27

    M81757/8-2, 20Ah Battery . ............ o.......... o..........o.................... 40 8B Charge Temperature Chart for Type M81757/8-2, 20-Ah Battery . 41... battery M83769/ 6-1. M83769/7-1 12V , 54 Ah 6140-00-328-3854 C-117D, C-118B, VC-1118B, C- 131F, T-33B Varley 24V, 18 Ah 6140-00-467-6112 AV-8A, AV-8C...RD-A144 243 EVALUATION OF AIRCRAFT BATTERY CHARGE DISCHARGE AND i/i ANKLYZAT ION REQUIREME. U) NAVAL WEAPONS SUPPORT CENTER CRANE IN WEAPONS QUALITY

  7. Reliability, Maintenance of Medical Equipment Maintenance Management Theory Application%医疗设备维修管理中的可靠性维修理论应用

    Institute of Scientific and Technical Information of China (English)

    马琰

    2016-01-01

    The so-caled reliability maintenance, namely the RCM, was to restore equipment technical performance, and effective way to increase the service life. At this stage, reliability maintenance theory gradualy atention by domestic and foreign counterparts. The reliability and maintenance as a standard maintenance principle and maintenance instructions, and to develop a scientiifc and reasonable maintenance scheme, used in the actual maintenance. RCM is to implement preventive maintenance, the balance of proactive maintenance and predictive maintenance, namely by predicting maintenance to provide accurate parameters for medical equipment running status, and to ensure that the balance of the active maintenance and preventive maintenance.%所谓可靠性维修,即R C M,就是恢复设备技术性能,并有效增加使用寿命的方式。目前阶段,可靠性维修理论逐渐被国内外的同行所关注。把可靠性维修当作标准的维修原则与维修指导,并制定出科学合理的维修方案,运用到实际的维修中。RCM就是实现预防维修、主动维修与预测维修的平衡,也就是通过预测维修为医疗设备运行状态提供准确的参数,并保证主动维修与预防维修的平衡。

  8. Advanced technologies for maintenance of electrical systems and equipment at the Savannah River Site Defense Waste Processing Facility

    Energy Technology Data Exchange (ETDEWEB)

    Husler, R.O. [Westinghouse Savannah River Co., Aiken, SC (United States); Weir, T.J. [Pentek, Inc., Coraopolis, PA (United States)

    1991-12-31

    An enhanced maintenance program is being established to characterize and monitor cables, components, and process response at the Savannah River Site, Defense Waste Processing Facility. This facility was designed and constructed to immobilize the radioactive waste currently stored in underground storage tanks and is expected to begin operation in 1993. The plant is initiating the program to baseline and monitor instrument and control (I&C) and electrical equipment, remote process equipment, embedded instrument and control cables, and in-cell jumper cables used in the facility. This program is based on the electronic characterization and diagnostic (ECAD) system which was modified to include process response analysis and to meet rigid Department of Energy equipment requirements. The system consists of computer-automated, state-of-the-art electronics. The data that are gathered are stored in a computerized database for analysis, trending, and troubleshooting. It is anticipated that the data which are gathered and trended will aid in life extension for the facility.

  9. 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.

  10. 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。

  11. Recent progress in the field of automated welding applied to maintenance activities; Avancees recentes dans le domaine du soudage automatique et robotise applique a la maintenance des equipements

    Energy Technology Data Exchange (ETDEWEB)

    Cullafroz, M. [FRAMATOME ANP, 92 - Paris-La-Defence (France)

    2004-07-01

    Automated and robot welding has 5 advantages compared to manual welding: -) under some conditions the automated circular welding does not require requalification testing as manual welding does, -) welding heads in robots have a reduced size compared to manual gears so they can enter and treat complex piping, -) by using an adequate viewing system the operator can be more than 10 meters away from the welding site which means that the radiation doses he receives is cut by a factor 1.5 to 2, -) whatever the configuration is, the deposition rate in automated welding stays high, the quality standard is steady and the risk of repairing is low, -) a gain in productivity if adequate equipment is used. In general, automated welding requires a TIG welding process and is applied in maintenance activities to: -) the main primary system and other circuits in stainless austenitic steels, -) the main secondary system and other circuits in low-percentage carbon steels, and -) the closure of spent fuel canisters. An application to the repairing of BWR's pipes is shown. (A.C.)

  12. 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。

  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. 基于TNPM的烟叶打叶复烤设备维护体系%Study on Tobacco Thrashing and Redrying Equipment Maintenance System Based on Total Normalized Productive Maintenance

    Institute of Scientific and Technical Information of China (English)

    张飞; 朱涛; 杨时刚; 马越; 徐文杰

    2012-01-01

    Tobacco thrashing and redrying process is a typical flow processing manufacturing system. The uninterrupted operation characteristics of the production puts forward higher requirement for the stability of machining equipment. In order to ensure the stable quality of tobacco, enterprises need the advanced and effective equipment management system. This paper proposed the equipment maintenance and management system based on Total Normalized Productive Maintenance (TNPM) theory in the tobacco thrashing and redrying process. The core contents of this system include the following aspects; effective training mechanism, equipment routine attention mechanism, equipment maintenance mechanism, knowledge base of equipment maintenance and repairing, equipment maintenance execution mechanism, and so on. This paper established the equipment control system, maintenance and repairing system and the staff's management process according to the actual situation and manufacturing characters of tobacco thrashing and redrying. In the practical production, the equipment maintenance system was proved to be effective. [Ch,2 fig. 10 ref. ]%烟叶的打叶复烤环节属于典型的流程加工制造系统,其不间断作业的生产特点对加工过程设备的稳定性提出较高的要求.为了保证稳定的加工质量,打叶复烤企业需要先进有效的设备管理体系作为依靠.文章论述了结合企业实际生产情况建立基于TNPM理论的烟叶打叶复烤设备管理维护维修体系.其核心内容包括:有效的培训机制、设备日常维护机制、设备维修机制、设备维护维修知识库和设备维护执行机制5方面.该研究结合了某复烤厂实际情况,考虑烟草打叶复烤厂的生产特点,制定出来的设备管理体系、维护维修体系以及相关人员的管理流程和系统在实际生产中应用效果较好.

  15. Lean Management of Maintenance of Medical Equipment%医疗设备维护与保养的精细化管理

    Institute of Scientific and Technical Information of China (English)

    吕辉; 吴筠; 陈建明

    2013-01-01

    The paper introduces the importance of medical equipment maintenance, and combines with the actual work to discuss the lean management of the maintenance.%文章对于医疗设备维护和保养的重要性进行了阐述,并结合本院实际工作,对于维护和保养的精细化管理工作进行了探讨.

  16. 煤矿机电设备维护与管理%Coal mine mechanical and electrical equipment maintenance and management

    Institute of Scientific and Technical Information of China (English)

    王首锋

    2016-01-01

    机电设备的维护与管理作为机电设备正常运行的基础,在煤矿企业的生产中有着不可忽视的地位。本文主要强调了煤矿机电设备维护的必要性,提出了煤矿机电设备维护与管理普遍存在的问题,最后介绍了提升煤矿机电设备维护与管理水平的有效对策。%The maintenance and management of mechanical and electrical equipment is the basis for the normal operation of mechanical and electrical equipment, and has a negligible position in the production of coal enterprises. In this paper, emphasized the necessity of coal mine electrical and mechanical equipment maintenance, proposed the problem universally existing in the management of the coal mine electrical and mechanical equipment maintenance, at last, introduced the improve coal mine electrical and mechanical equipment maintenance and management level of effective countermeasures, in order to increase the production efifciency of coal mining enterprises.

  17. 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.

  18. 特种设备维修器材中心逼近式灰色预测建模研究%Research on the Modeling of Center Approach Grey GM (1, 1) Prediction Model for Special Equipment Maintenance Equipment

    Institute of Scientific and Technical Information of China (English)

    李健; 李合振; 池斌; 王伟

    2016-01-01

    为提高特种设备维修器材消耗预测精度,构建中心逼近式灰色GM(1,1)预测模型,改善传统灰色GM(1,1)模型对特种设备维修器材中呈指数型消耗数据预测精度低甚至不适用的情况。通过计算对比,对某特种设备2016年维修器材消耗量的初步预测值进行了修正调整,并最终确定消耗预计值。%In order to improve the prediction accuracy of special equipment maintenance equipment, this paper builds center approach grey GM (1,1) prediction model, which can improve the situation that data prediction accuracy is low or even not applicable in the exponential consumption for special equipment maintenance equipment used the traditional gray GM (1,1) model. Through the calculation and comparison, it revised and adjusted the preliminary forecast of the consumption of a special equipment maintenance equipment in 2016, and finally determined the expected value.

  19. 一种装备维修效益分析方法%The Method of Beneficial Analysis on Equipment Maintenance

    Institute of Scientific and Technical Information of China (English)

    张洪向; 李敏勇

    2000-01-01

    This paper supplies the method of beneficial analysis on equipment maintenance for themanaging staff engaged in weapon equipment maintenace with the knowledge of life cycle cost%运用装备寿命周期费用计算有关知识,为装备维修管理人员提供一种装备维修效益分析方法

  20. 煤矿电气设备维修方法窥探%Maintenance Methods of Electrical Equipments in Coal Mine

    Institute of Scientific and Technical Information of China (English)

    张洪峰

    2015-01-01

    With the continuous development of the coal industry, the maintenance requirements of electrical equipment in coal mine is also higher. However, due to the operation of the staff is not standardized or the equipment maintenance is not timely and other reasons, problems in the maintenance of coal mine electrical equipment occur. In this paper, through analyzing the problems occurred in the process of coal mine electrical maintenance, the corresponding maintenance methods are put forward.%在煤矿产业不断发展的同时,由于设备更大范围的机械化和自动化,给煤矿电气设备的维修也提出了更高的要求。但是由于工作人员的操作不规范或设备维修不及时等原因,造成煤矿电气设备的维修出现问题。通过对煤矿电气维修过程中出现的问题进行分析,提出相应的维修方法。

  1. 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)

  2. 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。

  3. 矿山机电设备维护管理探究%Research on maintenance and management of mechanical and electrical equipment in mine

    Institute of Scientific and Technical Information of China (English)

    王飞

    2016-01-01

    in this paper, the importance of the mine electrical and mechanical equipment maintenance and management was analyzed in detail. It is pointed out that the problems existing in the present mine electromechanical equipment management, and according to these problems, some feasible and effective concrete measures were put forward to strengthen the mining machinery and electrical equipment maintenance management.%本文详细分析了矿山机电设备维护管理的重要性,指出了目前矿山机电设备管理中存在的问题,并根据这些问题提出了一些有效可行的具体的解决措施,旨在加强对矿山机电设备的维护管理。

  4. 关于高速公路机电设备的管理与维护%The Management and Maintenance of Highway Electrical and Mechanical Equipment

    Institute of Scientific and Technical Information of China (English)

    李鑫

    2011-01-01

    The highway system,the basic concepts of mechanical and electrical equipment and components are briefly introduced,and to analyze its characteristics.According to the highway management and maintenance of mechanical and electrical equipment inadequacies exist to further explore ways to make highway management and maintenance of electrical and mechanical equipment.%本文对高速公路机电设备系统的基本概念及组成进行简要介绍,并分析其特点。根据高速公路机电设备管理和维护存在的不足之处,进一步探讨如何做好高速公路机电设备的管理和维护。

  5. 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.

  6. 医疗设备综合维修模式的探讨%Discussion on the comprehensive maintenance mode of medical equipment

    Institute of Scientific and Technical Information of China (English)

    周佳

    2014-01-01

    目的:改善医疗设备的维修现状,确保医疗仪器安全、有效地运行,为临床诊断和治疗提供有力技术保障。方法:回顾性分析上海市肺科医院2013年设备维修费用,探讨综合维修模式的对策。结果:76.9%的维修服务由厂方提供,23.1%由设备科维修。结论:外包是今后医疗设备维修一种发展趋势。但医疗设备有其特殊性,需要在短时间内到场和全天候服务,这就要求医院维修工程师应具备较强的业务能力,充分发挥作用,实现医院内部维修与外包维修的有效结合,达到合作互赢的效果。%Objective: Provide the hardware support for the clinical diagnose and treatment and make sure that the medical instruments run safely and efficient by improving the status of medical equipment maintenance. Methods: retrospective analyze of the equipment maintenance of Shanghai pulmonary hospital. Results: 76.9% of the maintenance service is provided by the manufacturer and 23.1% of which is provided by the equipment department of the hospital. Conclusion: Medical equipment is about the life safety of patients, the manufacturer outsourcing service has its incomparable advantage in technology. It ensures the safe and efficient operation of the equipment, so outsourcing maintenance is the inevitable trend of development. But medical equipment has its particularity, it needs a short period of time to be present and service throughout the day, which requires the maintenance engineers have stronger business ability and give full play to the role. The effective combination of internal maintenance and outsourcing maintenance promotes the effect of the cooperation win-win.

  7. 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.

  8. 论电气设备状态检修及规范化管理%Condition-based Maintenance and Standardized Management of Electrical Equipment

    Institute of Scientific and Technical Information of China (English)

    李志民

    2013-01-01

    Electrical equipment is the guarantee of China's electric power business, so the electric power department must pay attention to the maintenance and management of electrical equipment. Because the update of electrical equipment is fast, the maintenance and management is more difficult with higher requirement, which requires the electric power department to innovate maintenance and management mode in order to adapt to the maintenance work in the new era.%电气设备是我国电力事业发展的保障,因此,各电力部门必须要高度重视电气设备的检修与管理工作。而且由于电气设备的更新速度快,其检修与管理工作的难度更大,要求更高,这就需要我国电力部门不断创新检修管理模式,以适应新时代的电气设备检修工作。

  9. 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.

  10. 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

  11. 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.

  12. 基于熵权的航空装备维修保障能力评估%Evaluation of Aviation Equipment Maintenance Capability Based on Entropy Weight

    Institute of Scientific and Technical Information of China (English)

    曹彪; 王帅磊; 张金春; 李超亚

    2016-01-01

    针对航空维修保障能力评估问题研究的不足,提出一种基于熵权的航空装备维修保障能力评估方法。根据航空装备维修保障的实际工作,将其分为准备、操作和保障3个阶段,分析各阶段工作的特点,分阶段建立指标体系,并采用熵权法确定各指标的权重;按照工作流程提出的指标体系更好地体现航空装备维修保障工作的整体性与连续性;最后,对某基地航空装备保障能力进行评估。评估结果表明:该评估指标能够提供合理有效的评估结论,为航空装备维修保障能力的评估提供了理论依据。%In view of the insufficient of studies in evaluation of aviation equipment maintenance capability, this paper puts forward an aviation equipment maintenance capability evaluation method based on entropy weight. According to the work of aviation equipment maintenance, this paper divides it into three sections, including preparation section, repairing section and maintenance section. This paper analyzes the feature of every section, and builds an index system. The weight of each index is determined by entropy weight method. The index system according to work flow gives better expression to the integrality and continuity of aviation equipment maintenance. The model is used to evaluate the maintenance capability of a base. The result shows that index system proposed in this paper can provide reasonable and effective conclusion, and theoretical accordance to aviation equipment maintenance capability.

  13. 机载设备视情维修及其决策建模分析%Analysis of on condition maintenance and decision modeling for airborne equipment

    Institute of Scientific and Technical Information of China (English)

    吴明辉; 阮永贵; 韩海舰

    2015-01-01

    Because of “inadequate maintenance” or “excessive maintenance” , traditional maintenance mode inevitably cause problems ,such as security risk and wasteful investment ;Firstly ,introduced the background and implementation basis of on condition maintenance ,and analyzed the characteristic of on condition maintenance .Then ,to facilitate on condition maintenance modeling for airborne equipment ,defined the content and objectives of on condition maintenance decision .At last ,from the perspective of airborne equipment’s deterioration model ,researched and analyzed the com‐mon methods of on condition maintenance decision modeling ,such as proportional hazards model ,shock model ,delay time model ,stochastic process model and so on .The research has a certain theoretical value for on condition maintenance mode in application to airborne equipment .%针对传统维修方式因“维修不足”或“维修过度”而不可避免地造成安全风险和投入浪费等问题。首先,介绍了视情维修产生的背景及视情维修的实施依据,并分析了视情维修的特点;然后,为方便机载设备视情维修决策建模,明确了视情维修决策的内容及目标;最后,从机载设备劣化模型的角度,研究并分析了比例危险模型、冲击模型、延迟时间模型及随机过程模型等常用的视情维修决策建模方法。研究对视情维修方式在机载设备中的应用具有一定的理论价值。

  14. 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.

  15. 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。

  16. 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,...

  17. 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.

  18. 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

  19. 通用机械设备维护的必要性和重要性%The Necessity and Importance of General Mechanical Equipment Maintenance

    Institute of Scientific and Technical Information of China (English)

    宁龙举; 徐凯

    2015-01-01

    随着我国经济的快速发展,我国作为工业化的生产大国,国内企业的数量正在逐步的增多,企业的发展和稳定的运行离不开机械设备的支持,通用机械设备等的好坏直接影响到企业生产线的运行质量和运行速度,机械设备也成为了企业的实习的象征,在企业机械化程度发展如此快的今天,通用技术的维护就变得尤为重要,文章分析了企业通用机械设备维护的方法,探讨企业通用机械设备维护的必要性和重要性。%With the rapid development of China's economy, China as a big country of industrial production, the number of domestic enterprises is gradually increasing. The development of enterprises and the stable operation are inseparable from the support of mechanical equipment, and general machinery equipment matches a direct impact on the operational quality and speed of the production line. Mechanical equipment has also become a symbol of corporate practice, and the degree of mechanization in the enterprise is growing so fast today. The general maintenance becomes particularly important. The article analyzes the corporate general machinery equipment maintenance methods to explore the necessity and importance of general machinery equipment maintenance.

  20. Maintenance and Management of Solar Equipment%对太阳能设备维护和管理的探讨

    Institute of Scientific and Technical Information of China (English)

    孙莉

    2013-01-01

    This paper uses solar energy equipment life cycle maintenance stage as the study period, namely from the trial operation to update stage and to the abandoned stage. It discusses the main theoretical contents of total equipment management, and presents targeted repair management methods. Finally, it summarizes the unfavourable factors and puts forward the improvement scheme, and puts forward some suggestions on the future of the equipment maintenance plan, so as to create and maintain good equipment maintenance management system, improve equipment utilization, enhance the safety and high quality, improve the operation efficiency of production system.%  本文以太阳能设备生命周期中的维护阶段为研究时间段,即试运行到更新到废弃阶段。重点论述了全员设备管理的主要理论内容,着重介绍和引入了针对性维修管理方法。最后总结不利因素以及提出改善方案,并对今后的设备维护计划的完善提出建议,从而创建并维持优良的设备维护管理系统,提高设备的利用率,增进安全性及高质量,全面提高生产系统的运作效率。

  1. 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.

  2. 冶炼设备中的故障诊断维修分析%Analysis of Fault Diagnosis and Maintenance in Smelting Equipment

    Institute of Scientific and Technical Information of China (English)

    丁玉平

    2016-01-01

    In this paper, the main research object of the iron and steel smelting equipment, analysis of smelting equipment fault diagnosis and maintenance measures. The iron and steel industry in nowadays industry, occupy an important position, in the actual situation, iron and steel industry development of our country economy will impact, in order to stabilize the development of iron and steel industry, it is necessary to ensure the smooth operation of the iron and steel smelting equipment. Therefore, the analysis of the study of iron and steel industry, smelting equipment fault diagnosis and maintenance is very important.%本文以钢铁业冶炼设备为主要研究对象,分析冶炼设备的故障诊断以及维修措施。钢铁业在现如今工业当中,占据着重要的地位,钢铁业的发展对我国的经济也会带来影响,要想稳定发展钢铁行业,就必须要确保钢铁冶炼设备的平稳运作,因此,研究钢铁业冶炼设备的故障诊断维修问题十分重要。

  3. 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.

  4. Study on Electric Equipment Maintenance Strategy Based on LCC%基于寿命期成本的电气设备检修策略研究

    Institute of Scientific and Technical Information of China (English)

    陈冬青; 许宝珍; 张怡

    2014-01-01

    This paper analyzes and optimizes the maintenance strategy of electric components and studies on its influence on electric equipments by establishing component reliability growth model,considering the operation and maintenance cost change of the substation LCC and using the theory of condition based maintenance and age reduction factor,so as to propose the optimal maintenance strategy based on LCC.According to the analy-sis,penalty cost is the key factor to combine LCC concept and reliability.If the equipment operates too long, this paper suggests replacing them instead of condition based maintenance.Moreover,reasonable maintenance strategy can decrease failure rate and outage cost and further more reduce LCC.The case study indicates that condition based maintenance taking LCC into account can save more cost than periodic maintenance.%在建立元件可靠性增长模型的基础上,考虑变电站寿命周期成本(LCC)中运维成本和故障成本的相应变化,应用状态检修和役龄回退因子的理论,对电气元件的维修策略进行优化分析,探讨检修策略对设备可靠性的影响,从而给出基于LCC的最优检修策略建议。分析认为,惩罚成本是LCC 理念与可靠性结合的关键,当设备运行年限过长时,建议不再进行状态维修而应更换新设备,而合理的维修策略能够降低故障率和停电损失成本,进一步减小LCC。算例表明,考虑LCC的状态检修,能够比定期检修更好的节约寿命期成本。

  5. 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.

  6. 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。

  7. Analysis of the operation and maintenance of substation equipment operation and maintenance integration management and control%分析变电设备运检的运维及检修一体化管控

    Institute of Scientific and Technical Information of China (English)

    谢磊

    2016-01-01

    在当今形式下,我国的经济和科技水平在不断发展.因此,我国的城市化和工业化进程也得到极大推动.企业的用电量也在日益增加,本文主要就变电设备运检的运维及检修一体化管控展开研究和分析.%In today's form, China's economic and technological level in the continuous development of. Therefore,the process of urbanization and industrialization of our country has been greatly promoted. Enterprise's electricity consumption is also increasing,this paper mainly on the substation equipment operation and maintenance of the operation and maintenance of integrated management and control of research and analysis.

  8. 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.

  9. 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.

  10. Exploration and Application of Standardization Management of Electrical Equipment Maintenance in Chemical Enterprises%化工企业电气设备检修标准化管理探索及应用

    Institute of Scientific and Technical Information of China (English)

    陶者青

    2016-01-01

    Discusses the current large-scale chemical enterprise electrical equipment maintenance problems,and the company electrical equipment maintenance standardization of the practice of the introduction and summary.%探讨目前大型化工企业电气设备检修存在问题,并对该公司电气设备检修标准化的实践,进行了介绍与总结。

  11. Maintenance scheduling for semiconductor manufacturing equipment based on Markov Decision Process%基于MDP的半导体制造设备维护调度研究

    Institute of Scientific and Technical Information of China (English)

    陈静静

    2012-01-01

    To solve the maintenance scheduling problem of semiconductor manufacturing equipment, two-layer maintenance optimization model based on Markov decision process is proposed. Device layer uses Markov Decision Process to derive the optimal policy for job sequencing,cleaning and maintenance of each device in the long-term, both considering the degradation failure and stochastic failure. Genetic algorithm is applied to assign a limited number of maintenance personnels to manufacturing equipment in order to induce the productivity losses. Finally this model based on a certain semiconductor wafer fabrication is built on Em-Plant, and results revealed satisfactory scheduling performance.%为解决半导体制造设备的维护调度问题,提出基于马尔可夫决策过程(MDP)的制造设备两层维护优化模型.设备层利用马尔可夫决策过程(MDP)模型,同时考虑劣化故障和随机故障两种故障类型,制定针对单台设备的工件排序、清洗和维修的长期维护优化策略,系统层采用遗传算法解决有限维护资源下短期维修调度方案,尽可能降低由设备故障所导致的生产损失.最后以某半导体生产线为例利用eM-Plant软件进行仿真验证,结果表明,该维护策略能更好的提高系统性能.

  12. Integrated maintenance support scheduling method of multi-carrier aircrafts%舰载机多机一体化机务保障调度方法

    Institute of Scientific and Technical Information of China (English)

    韩维; 苏析超; 陈俊锋

    2015-01-01

    为了有效提升舰载机多机机务保障的效率和保障人员的利用率,根据单机机务保障流程约束特性,建立了基于多计划评审技术网络的多目标多机一体化机务保障调度模型。针对问题的求解,提出了一种自适应混合差分进化算法。首先根据调度的网络化排队过程,设计了基于事件调度策略的解码方法。其次为了协调算法“探索”与“开发”的能力,引入了自适应的变异操作和交叉、变异参数控制。再次,针对工序块的平行组合排列特征,提出了4种邻域结构,进而在算法框架中嵌入了一种自适应多邻域局部搜索策略。最后通过仿真实验验证了模型和算法的可行性和有效性。%In order to improve the maintenance support efficiency and support personnel availability of multi-carrier aircrafts effectively,according to the constraint characteristics of maintenance support process for single-carrier aircraft,a multi-objective integrated maintenance support scheduling model of multi-carrier air-crafts based on multiple program evaluation and review technique networks is established.To solve the pro-blem,a self-adaptive hybrid differential evolution algorithm is presented.First,a decoding method based on event scheduling is designed according to networked queuing process of scheduling.Second,for coordinating the exploration and exploitation in algorithm,a self-adaptive mutation operation,an adaptive control strategy of crossover and mutation parameters are introduced.Third,in view of the characteristics of parallel-arrangement of process blocks,four kinds of neighborhood structure are defined,and then a novel local search based on the newly defined neighborhoods is presented and imbedded in the SaHDE algorithm.The simulation results show the feasibility of the model and the effectiveness of the algorithm.

  13. 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…

  14. 实验室电子机械设备维修与管理%Maintenance and Management of Laboratory Electromechanical Equipment

    Institute of Scientific and Technical Information of China (English)

    姚红

    2014-01-01

    设备的使用、管理、保养及维修阶段占设备总寿命周期的绝大部分,抓好设备管理工作,保证设备的安全、正常运行,是企业管理工作中一项基础性工作,它维系着企业生产经营的根基,影响着企业的方方面面。%the time forservice, management, caring and maintenance takes up of the most of total life cycle of e-quipment., Special attention shall be paid to the equipment management to ensure the safe and normal operation, which is a basic work for an enterprise. It maintains the foundation of an enterprise production and operation, and affects all aspects of an enterprise.

  15. The Phychological Impact of Attributional Training on Aircraft Maintenance Management%归因训练对航空机务人员身心作用研究

    Institute of Scientific and Technical Information of China (English)

    王丹; 宋燕峰; 苗丹民

    2011-01-01

    目的 探索归因训练对机务人员的心理影响,探讨航空机务人员心理服务新模式,为新时期军队建设提供科学依据.方法 本研究采用归因风格训练,以随机整群抽取的空军航空兵一线机务官兵490人作为样本进行研究.对样本官兵实施归因风格训练7个月后,用归因风格量表(ASQ)进行测量.结果 实施归因训练后,官兵的归因风格各因子、应付风格各因子明显提高(P<0.05).结论 归因风格训练使航空机务人员心理健康水平和生活满意度显著提高;实施心理训练后心理健康状况有明显改善;改变归因风格对机务人员心理健康有促进作用.%Objective To explore the psychological impact of attribution training on aircraft maintenance personnel and study new mode of their psychological services to provide scientific basis for army building in the new period. Methods This research is carried out by adopting attribution style training, randomly sampling a whole group of 490 first - line maintenance officers from the aviation personnel in air service,and taking them as samples. After 7 months' attribution style training,the sampled officers were measured according to the attribution style questionnaire ( ASQ) . Results After implementation of attribution training, their factors of attribution style and handling style were improved dramatically ( P < 0. 05). Conclusion Attribution training notably lifts level of psychological health and life satisfaction for aircraft maintenance personnel. After having accepted psychological training, their psychological health is improved obviously. And changing attribution style can promote the psychological health of maintenance personnel.

  16. 提高流程性企业设备利用率的维修策略%Maintenance Strategy for Increasing Equipment Utilization Ratio at Process Industrial Enterprises

    Institute of Scientific and Technical Information of China (English)

    吕路

    2012-01-01

    从流程性企业设备特点出发,探索提高设备利用率的维修策略。%Based on the characteristics of the equipment at process industrial enterprises, the maintenance strategy for increasing equipment utilization ratio is probed.

  17. 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

  18. 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.

  19. 电气设备状态维修技术的现状及发展%The Present State and Development Trend of Condition-based Maintenance Technology for Electrical Equipment

    Institute of Scientific and Technical Information of China (English)

    白凤雷

    2015-01-01

    状态维修与定期维修相结合已成为电气设备检修的必然趋势,分析了电气设备的现状、维修制度和状态维修的相关问题。探讨了实际工作中如何合理开展电气设备状态维修工作,如何成功地向状态维修过渡的问题。%Combination of condition-based maintenance and regular maintenance has be-come the inevitable trend of electrical equipment maintenance. Various related problems in the current state, maintenance system and condition-based maintenance of electrical equipment were analyzed. The issue of how to reasonably carry out condition-based maintenance for electric equipment maintenance in practice work and how to successfully transit to condi-tion-based maintenance was also discussed.

  20. 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.

  1. 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...

  2. 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.

  3. Instrument Automation Equipment Failures and Maintenance Technology%仪表自动化设备故障与维护技术

    Institute of Scientific and Technical Information of China (English)

    赵明

    2015-01-01

    随着经济的发展,我国石油化工企业的作用越来越重要,油气运输的相关技术和设备也更加先进,在石油化工企业运行的过程中,仪表自动化设备能够很好地提高其生产效率。我们必须做好自动化设备故障维修方面的工作,提高其工作效率。%With the development of economy, the role of China’s petrochemical enterprises increasingly important oil and gas-related technologies and equipment transportation are also more advanced in the process of petrochemical companies operating in instrument automation equipment can well improve its production efficiency . We must do a good job of automation equipment maintenance failures, improve their work efficiency.

  4. Examining a Paradigm Shift in Organic Depot-Level Software Maintenance for Army Communications and Electronics Equipment

    Science.gov (United States)

    2015-05-30

    software sustainment is the driving force . The document states that, for FY13, 88% of PPSS was conducted by contractors, while only 12% was conducted by...Army Force Generation to support an Army at war, which requires the DME to reset equipment as quickly as possible so it is available for training the...new C4ISR systems will enter PPSS from fiscal year (FY) 2015 to 2019, driving an increasing Software Engineering Center (SEC) workload demand during

  5. 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。

  6. Research on aircraft electronic equipment repair professional practical teaching%飞机电子设备维修专业实践性教学研究

    Institute of Scientific and Technical Information of China (English)

    徐佳; 李航

    2012-01-01

      电子设备维修专业是民航机务维修的重要建设专业,随着民航技术和机电一体化的程度不断提高,工作岗位对民航电子设备维修专业人才的素质要求特别是实际操作能力的要求越来越高,实践性教学的地位作用更加突显。文章通过对电子设备维修专业人才应具备的能力素质分析,就加强该专业实践性教学提出了具体措施。%  Electronic equipment repair is important construction profession in aviation maintenance repair, with the civil aviation technology and mechanical and electrical integration degree rise ceaselessly, job of aviation electronic equipment repair professional personnel quality especially the actual operation ability of the increasingly high demand, the practical teaching plays role more prominent. This article through to the electronic equipment repair profession should have the ability of quality analysis, The paper puts forward the specific measures to strengthens the practice teaching.

  7. A study of foreign object damage (FOD) and prevention method at the airport and aircraft maintenance area

    Science.gov (United States)

    Hussin, R.; Ismail, N.; Mustapa, S.

    2016-10-01

    Foreign object damage (FOD) is common risk for aviation industry since long time ago and it has contributed to many terrible incidents and fatalities. The cost of FOD cases every year is very high, which is around RM 1.2 billion. Therefore, a proper technique and strategy has to be taken by the designated organizations including airlines to further eliminate the FOD occurrences. It is not easy to control FOD due to some circumstances such as inappropriate working behaviour, poor working environment, insufficient technology and also disorganized housekeeping system. The main purpose of this research is to discuss and explain further about FOD and the techniques to prevent FOD. FOD is a universal concern in aviation industry and it is one of the reasons that contribute to aircraft failure and unwanted damages such as fatalities and causalities. Throughout this research, many information related to FOD problems and their impact on aviation industry are gathered and presented.

  8. Total Production Maintenance of Print Equipment%印刷设备的全面生产保养

    Institute of Scientific and Technical Information of China (English)

    章兴荣

    2009-01-01

    全面生产保养(Total Productive Maintenance,TPM)是一种优化定期保养、正确保养和预防性保养的精益生产策略,其精髓在于使设备尽可能高效率,创造尽可能多的利润。全面生产保养通过小型团队的协作达到零故障和零缺陷。本文讨论印刷企业如何有效开展设备的全面生产保养。

  9. 通信设备运营和电力的维护%Operation of Communication equipment and Maintenance of Power

    Institute of Scientific and Technical Information of China (English)

    王宇

    2015-01-01

    Combined with the?actual situation of?the implementation internal controls of China Netcom and the experience to pass the audit of external auditors successfully in resent two years,this paper analyzed the problems existing in the maintenance of communication network equipments and discussed related risks.%文章结合中国网通近两年来内部控制项目实施的实际情况和圆满通过外部审计师审计的经验,对目前通信网络设备维护工作中存在的问题和相应带来的风险进行剖析。

  10. 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.

  11. Equipment Maintenance Position Location Uncertain Decision Method in Wartime%战时装备保障阵地选址不确定决策方法

    Institute of Scientific and Technical Information of China (English)

    陈小卫; 王新政; 马琳; 孔丽

    2013-01-01

    针对战时选址属性信息为区间数的情形,提出了一种基于模糊偏序关系的装备保障阵地选址决策方法.首先,建立战时装备保障点选址的评估值模型,并对其进行预处理;然后建立了模糊偏序关系模型,将混合型评估值模型转化为评估关系模型,得到各备选点之间的偏序关系;最后,对偏序关系进行集结,得到全序关系,从而获取方案的优劣排序.这为战时装备保障阵地选址提供了一种新的有效途径.%To solve the equipment maintenance position location problem whose attributes are interval data in wartime,an approach based on fuzzy preference relationship is proposed.Firstly,evaluation value model is established by pretreatment.Then,evaluation value model is transformed into evaluation relation model by a fuzzy preference relation model.Finally,the fuzzy preference relation is aggregated to complete order,and the preference order is obtained.It is proved that the method can provide a new effective way for selection of equipment maintenance position.

  12. 腹腔镜手术器械组成与系统设备的故障维修思路探究%Components of Laparoscopic Operation Instruments and Thinking Exploration of Systematic Equipment`s Malfunction Maintenance

    Institute of Scientific and Technical Information of China (English)

    郑志远

    2015-01-01

    腹腔镜手术是一种新型的治疗手术方法,可进行腹腔内检查和治疗的内窥镜技术,主要由腹腔镜器械设备、摄像成像系统、动力系统等组成,腹腔镜整套设备都是由精密仪器组成,需要经过专业培训的工作人员进行管理和维护,在使用过程中严格按照仪器设备操作要求进行操作,延长仪器使用寿命。本文主要介绍腹腔镜手术器械主要组成系统,探讨腹腔镜手术器械常见的故障及维修思路,保证腹腔镜手术器械能够正常运转,延长仪器设备的使用寿命,保证手术顺利进行。%Laparoscopic operation is a new operation method of treatment,disposing of abdominal cavity examination and treatment,mainly composed of laparoscopic equipment,camera imaging system,power system etc. Laparoscopic equipment structure is highly complex,so it is necessary to find a particular person to run and maintain the equipment. It is very easy to be damaged if the equipment is not operated according to instruction,and its service life wil be affected. This paper mainly introduces the main composition systems of laparoscopic operation instruments,explores the usual malfunctions of laparoscopic operation instruments and the thinking of maintenance,this paper also ensures that laparoscopic operation instruments could run normal y,so the service life of the equipment wil be prolonged,and smooth surgical operations could also be ensured.

  13. 化工设备使用与保养技术分析%Analysis on the Technology of Chemical Equipment Use and Maintenance

    Institute of Scientific and Technical Information of China (English)

    董鑫

    2015-01-01

    化工行业是我国工业发展的重要组成部分,是我国重要的产业类型。化工设备安全平稳运行是保证企业完成生产任务的重要因素,也是保证企业安全生产和利益最大化的基础。本文对化工设备产生故障的原因、故障出现的规律及保养维护措施等进行了探讨分析。%Chemical industry is an important component of our country industry development,it is an important type of industry in our country. Safe and stable operation of chemical equipment is an important factor guaranteeing the completion of the production task for enterprises,and also the foundation to guarantee the safe production and the maximization of profit for enterprises.. In this paper,the cause of the failure of chemical equipment,the law of the failure and maintenance measures are discussed and analyzed..

  14. Management and maintenance measures for the oil & gas storage and transportation equipment%油气储运设备的管理与维护措施探讨

    Institute of Scientific and Technical Information of China (English)

    房昆

    2015-01-01

    The equipment management and maintenance become crucial during the rapid growth of storage and transportation of oil & gas.This paper illustrates the management and maintenance measures for the oil & gas storage and transportation equipment.%在油气使用规模和储运量的快速增长过程中,做好相关设备的管理与维护工作的重要性也在不断凸显.本文就对于油气储运设备的管理与维护措施进行了分析与探讨.

  15. Positioning embedded software maintenance within industrial maintenance

    OpenAIRE

    Karim, Ramin; Kajko-Mattsson, Mira; Söderholm, Peter; Candell, Olov; Tyrbern, Tommy; Öhlund, Hans; Johansson, Jan

    2008-01-01

    Little is known about of how software embedded in complex industrial technical systems is maintained. In this paper, we identify industrial maintenance process steps and position software maintenance activities within them. We do this in the context of JAS 39 Gripen, a multi-role combat aircraft developed by Saab.

  16. 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。

  17. 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.

  18. 冲击环境下租赁设备预防维护策略优化研究%Preventive Maintenance Policy Optimization Based on Shock Model for the Leasing Equipment

    Institute of Scientific and Technical Information of China (English)

    李林; 周晓军; 金琳

    2012-01-01

    从租赁设备的工作环境出发,提出了一种基于冲击模型的故障建模方法,综合考虑改善因子与预防维护成本的制约关系以及租赁条件下的故障惩罚机制,建立了一种面向租赁设备的等周期预防维护策略,并以最小化期望总成本率为决策目标得到租赁设备的优化维护计划.算例分析显示,该策略符合一般租赁设备维护的实际情况,能为服务制造商提供有效的维护解决方案.%In this paper,a periodic preventive maintenance strategy was proposed lor the leasing equipment based on the shock model by comprehensively considering the failure punishment mechanism and the relationship between the improvement factor and preventive maintenance cost. The optimal maintenance plan for the leasing equipment was achieved by minimizing the expected total long-run cost per unit time. The numerical results show that the proposed maintenance strategy is practical and it can provide efficient decision support for the maintenance optimization of the leasing equipment.

  19. 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.

  20. 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.

  1. 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. [Oak Ridge Inst. for Science and Education (ORISE), Oak Ridge, TN (United States)

    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.

  2. Present situation and Countermeasures of management of mechanical and electrical equipment maintenance technology in coal mine%煤矿机电设备维修技术管理的现状与对策

    Institute of Scientific and Technical Information of China (English)

    陈超

    2016-01-01

    Coal Mine Electrical and mechanical equipment maintenance in place, proper maintenance will greatly improve work efifciency, prolong the use of coal mine mechanical and electrical equipment in a certain extent for a long time, so coal mine electrical and mechanical equipment maintenance technology in the present stage of production and life is very important. However, there are still many problems in the coal mining enterprises, coal mining machinery and electrical equipment maintenance. to solve these problems is an important prerequisite for the healthy and safe development of coal mine enterprises.%煤矿机电设备养护到位、维修得当是提高其工作效率的根本保证,也会在一定程度上延长煤矿机电设备的使用寿命。但是在煤矿企业,煤矿机电设备的维修管理仍然存在许多问题,解决这些问题是煤矿企业健康、安全发展的重要前提。

  3. 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.

  4. 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

  5. 浅析市政泵站电气设备的管理与维护%Analysis on the Management and Maintenance of Electrical Equipment for Municipal Pumping Station

    Institute of Scientific and Technical Information of China (English)

    杨锐

    2015-01-01

    文章通过对南京市主城区市政管养泵站管理体制及电气设备维护要求的具体剖析,总结了市政管养泵站电气设备管理维护的一些方法经验,具有参考价值和实际意义.%Through the concrete analysis on the management system and the maintenance requirements of the management system and electrical equipment maintenance of the main city of Nanjing city , this paper summarizes some methods of the management and maintenance of electrical equipment in the municipal management ,and has reference value and practical significance.

  6. 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.

  7. 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.

  8. Evaluation on Maintenance Process Quality of Equipment Based on ELECTRE Ⅰ Methodology%基于ELECTRE Ⅰ法的装备修理过程质量评价研究

    Institute of Scientific and Technical Information of China (English)

    王帅; 陶凤和; 贾长治; 柳成成

    2011-01-01

    The maintenance process is divided into four main maintenance steps and the evaluation index system set forth for maintenance process quality. Taking the equipment maintenance process of four maintenance factories of the same level in the army for an example and employing ELECTRE I methodology, a comprehensive evaluation model for maintenance process quality of equipment is built. The concept of net advantage degree is put forward so as to provide a better solution to the problem of incomplete ranking of the evaluation result with the ELECTRE I methodology, thus further proving the scientificity and practicality of the evaluation model.%将修理过程拆分为4个主要修理工序,构建影响修理过程质量的评价指标体系.以我军4家同级别修理工厂的装备修理过程为例,运用ELECTREⅠ理论,建立装备修理过程质量的综合评价模型.通过提出净优势度的概念,很好地解决了ELECTRE Ⅰ理论评价结果不完全排序的问题,也进一步验证了评价模型的科学性和实用性.

  9. Aviation Equipment Maintenance Safety Assessment Based on Improved Support Vector Machine%基于改进支持向量机的航空装备维修安全评估

    Institute of Scientific and Technical Information of China (English)

    柳月青; 徐吉辉

    2016-01-01

    The traditional assessment of aviation equipment maintenance safety uses the method of qualitative assessment. Because of subjectivity,strong arbitrariness,and lack of operability in the traditional assessment,the improved Support Vector Machine (SVM) based on kernel density estimation is proposed. The evaluation index system of aviation equipment maintenance safety is constructed,and the comprehensive assessment on aviation equipment maintenance situation of a certain unit is conducted by improved Support Vector Machine (SVM),on the basis of using Analytic Hierarchy Process (AHP) to calculate its weight,which provides a scientific method for aviation equipment maintenance safety assessment,and has a strong theoretical and practical significance to ensure the security of aviation equipment maintenance.%传统航空装备维修安全评估大多采用定性评估方法,针对传统评估中存在主观性、随意性过强,实践中缺乏可操作性等问题,提出了基于核密度估计的改进支持向量机。构建了航空装备维修安全评估指标体系,在利用层次分析法对其权重进行计算的基础上,通过改进支持向量机对某单位航空装备维修状况进行了全面评估,为航空装备维修安全评估提供了科学的方法,对确保航空装备维修安全具有较强的理论和现实意义。

  10. Application of the 3D Printing Technology in the Maintenance of Medical Equipment%三维打印技术在医疗器械维修中的应用

    Institute of Scientific and Technical Information of China (English)

    徐路钊; 张华伟; 吴书铭; 刘成友; 蒋红兵

    2016-01-01

    The application of the three-dimensional printing technology in the medical ifeld has become widely used. The technology can be used in the production of customer-specified surgical models, implants, prosthesesand customized surgical equipment for a particular surgery. Yet the application of three-dimensional printing technology in the maintenance of the medical equipment is not common. In the daily maintenance of equipment, the deifciency and the high price of the spare parts has brought much inconvenience to the maintenance work. By analyzing the different cases in routine equipment maintenance, this paper used different modeling methods to conduct three-dimensional reduction of the existing or missing parts. The paper also compared the three-dimensional molded parts with the original parts and veriifed the effectiveness of the application in the medical equipment maintenance.%三维打印技术在医疗领域的应用范围越来越广泛,能够定制特定手术模型、植入物、假肢和个性化手术设备等,但三维打印技术在医疗设备维修中的应用却较少。在日常的设备维修保养中,设备零配件的缺失和高昂的价格给维修工作带来了诸多不便。本文结合日常维修实例,对已有或缺失的零配件使用不同的建模方法进行三维还原,比较了三维成型件与原零配件的特性,并通过实验验证了三维打印技术在医疗设备维修中的应用价值。

  11. Vibration Test Requirements and Application Analysis of Civil Aircraft Equipment (Ⅱ) Vibration Test Requirements of Civil Fixed-wing Aircraft Equipment in DO 160F/G%民用飞机机载设备振动试验要求和应用分析(二)DO 160F/G民用固定翼飞机机载设备振动试验要求

    Institute of Scientific and Technical Information of China (English)

    祝耀昌; 李韻; 徐俊; 王星皓

    2016-01-01

    阐述了民用飞机机载设备振动环境的特点和振动试验分类,归纳和汇总了DO 160 F/G中的各类民用飞机机载设备的振动试验要求,包括振动谱、振动量值和试验持续时间等,并进行了分析和说明,以便于查阅和使用。最后对民用飞机机载设备振动试验方法的应用进行了概括,介绍了民用固定翼飞机的机载设备振动试验要求,按设备在机上的区域不同进行分类,详细地对比说明各个位置上设备的振动试验要求;介绍了民用直升机的机载设备振动试验要求。%ABSTRACT:The paper set forth the characteristics of the vibration environment of civil aircraft equipment and the classifica-tion of vibration tests. The vibration test requirements of various civil aircraft equipment in DO 160 F/G were concluded and summarized, including vibration spectrum, magnitude and duration, and then were analyzed and explained accordingly, so as to facilitate the reference and application thereof. At last, the application of vibration test method for civil aircraft equipment was generalized. Vibration test requirements of civil fixed-wing aircraft equipment was described and classified according to the different sections of the equipment in the aircraft. The vibration test requirements of the equipment at each position were de-scribed in details by contrast; and the vibration test requirements of the airborne equipment of civil helicopters was presented.

  12. 临床医疗设备维修存在的问题及对策%Problems and Countermeasures on maintenance of Clinical Medical Equipments

    Institute of Scientific and Technical Information of China (English)

    王旭东; 张子耀; 王伊刚

    2009-01-01

    随着新技术的不断发展,临床医疗设备在现代医院广为运用.但与之配套的维修工作却存在维修成本过高、维修时间过长、维修技术垄断、维修手段落后等诸多问题,文章从医院临床医疗设备的种种不良现象和问题入手,对当前医疗设备维修问题进行了成因分析,指出要高度重视医疗设备维修工作的现实意义,并提出了三个解决对策,试着从理论和实践角度探讨:如何使医院建立相对完善的医疗设备维修队伍,如何保障医院医疗设备的完好性和如何减少医疗设备的维修成本、增加医院经济效益等现实问题.%With the continual development of new techniques, the clinical medical equipments are widely used in modern hospital. However, the relative maintenance and repairing work has many problems, such as the high repairing cost, the too long repairing time, the technique monopoly and the repairing technique falling behind. This article starts with the repairing phenome-na and problems; analyzes its reasons and points out that paying great attention on the medical equipment repairing work has prac-tical significance. And also, three countermeasures are given. The article tries to discuss the realistic problems from theoretical and practical viewpoints, such as, how to build up a relatively complete medical equipments repairing team, how to keep the e-quipments'integrality, how to reduce the repairing costs and increase the hospital economic benefit.

  13. Faults Diagnosis and Maintenance for Electrical Motor Equipment%电机设备的故障诊断和维护

    Institute of Scientific and Technical Information of China (English)

    段亚东

    2012-01-01

    According to practical experience of electrical motor equipment installation, starting with motor commissioning, starting, running process, fault causes etc a good many details, introduction was made to problems frequently turning up in motor installation and commissioning. Assisting with the typical circuit, this paper described causes of failure and solution for motor starting and briefly explained the maintenance method.%根据电机设备安装的实践经验,从电动机调试、起动、运行过程及故障原凶诸多细:宵检查入手,介绍了电机在安装调试过程中经常出现的问题,辅以典型电路,阐述了电动机起动失败的原因及解决方法,并简要说明了电动机的维护方法。

  14. Optical Fiber Line Equipment Failures and Maintenance Measures%光纤线路设备故障分析及维护措施

    Institute of Scientific and Technical Information of China (English)

    王海

    2012-01-01

    近年来,随着科学技术的快速发展,光纤通信系统在各个行业领域中都有着较为广泛的应用.光纤通信技术的普及与发展为人们的生产与生活带了极大的便利,其逐步朝着智能化、数字化以及集成化的方向发展,在实际的光纤设备运行过程难免会出现各种各样的故障问题,这就需要采取相应的故障分析以及维护措施进行问题的有效解决.%In recent years, with the rapid development of science and technology, optical fiber communication systems in various industries have a relatively wide range of applications. Optical fiber communication technology popularization and development of production and life of people with a great convenience, gradually moving in the direction of intelligent, digital and integrated development of the actual fiber optic equipment is running, there will inevitably be a variety of failure problems, which need to take the corresponding fault analysis and maintenance of measures to effectively solve the problem.

  15. 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...

  16. 电网设备状态检修工作质量的现状及对策%Present situation and countermeasures of condition-based maintenance work quality of grid equipment

    Institute of Scientific and Technical Information of China (English)

    吴波

    2016-01-01

    本文介绍了状态检修应遵循的基本原则,状态检修、状态监测和在线监测的关系,针对目前状态检修工作存在的问题,提出了怎样提高电网设备状态检修工作质量的对策。%This article describes the basic principles that the condition–based maintenance work should followed,the relations between condition-based maintenance, condition-based monitoring and on-line monitoring. Besides, aiming at the problems existing in condition–based maintenance work,put forward the countermeasures that how to improve the condition–based maintenance work quality of grid equipment.

  17. 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.

  18. 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.

  19. 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.

  20. 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…

  1. 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.

  2. Modeling on Maintenance Resources Requirement Prediction for System of Multi-Kinds Equipments%多型号装备系统维修资源需求预计建模

    Institute of Scientific and Technical Information of China (English)

    王亚彬; 贾希胜; 蔡丽影; 王广彦

    2012-01-01

    传统的按装备型号进行保障的模式已不适应未来战争需要。多型号装备联合保障是未来装备维修保障的主要方式。针对多型号装备系统维修资源的需求预计问题,分析了影响维修资源需求的主要因素,按照维修资源的不同特点,提出了一种维修资源分类方法;根据装备保障的实际过程,勾画出了维修资源需求预计的一般流程,并构建了各类维修资源的需求预计模型;最后给出了具体算例,证明已构建维修资源需求预计模型的适用性和可行性。%Traditional maintenance support model is not adapted to the requirement of future battles,for its type to type support mode.Hence,Joint support with multi-kinds of equipments is the main mode of maintenance support in the future.For the requirements of prediction on maintenance resources of multi-kinds equipments system,the primary infection factors for the requirement of maintenance resources were analyzed.According to the different characteristics,a kind of classification for maintenance resources was given.A flow for the prediction of maintenance resources was drawn and four kinds of models for maintenance resources were constructed. At last,an example was presented,which proved the applicability and feasibility of the prediction models.

  3. 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.

  4. Application of Laser Tracker in Maintenance Equipment for Nuclear Power Plant%三维激光跟踪仪在核电维修设备制造检验中的应用

    Institute of Scientific and Technical Information of China (English)

    翁志敏

    2014-01-01

    The maintenance equipment of reactor internals is very important for maintenance in service in nuclear power plant. As its size is large and its operation is highly accurate, the equipment is difficult to be manufactured and tested.The problem can be solved through taking advantage of laser tracker.Meanwhile, the application also provides evidence for manufacturing quality.%堆内构件专用维修设备在核电厂在役维修中占有重要地位,其尺寸庞大、运行精度高,在制造检验中存在一定困难。通过三维激光跟踪仪的应用,解决了这些难题,也对其制造质量提供了检验依据。

  5. Maintenance practice of electrical power system for SR2X series aircraft%SR2X系列飞机电源系统的使用维护实践

    Institute of Scientific and Technical Information of China (English)

    杜光明; 王书伟

    2014-01-01

    SR2X系列飞机拥有复合材料结构和先进的空气动力学特性,蕴含了平面仪表板、多功能显示技术和极为出众的安全性革新,其中包括终极的保护手段--西锐机身降落伞系统(CAPS),为目前行业中最畅销的机型,有“空中宝马”之美誉。随着中国低空空域的逐步开放,将会有越来越多的SR2X系列飞机进入寻常百姓家,与之俱来的是飞机的使用与维护问题。从飞机使用维护的角度出发,介绍了SR2X系列飞机电源系统的组成及功用,结合电源系统工作原理,阐述了电源系统的使用及维护方法,并提出了存在的问题。%SR2X series aircraft with composite material structure have advanced aerodynamics characters. They also have flat dashboard,multi-function display technology and outstanding security innovations,which includes the ultimate protection means such as Cirrus Airframe Parachute System (CAPS) with great reputation of "air BMW" to be the best-selling models. With the gradual opening of China′s low-altitude airspace,more and more families could afford an SR2X series aircraft. So the use of aircraft and maintenance issues is following. Start from the maintenance of the aircraft,the composition and function of the power systems in SR2X series aircraft is introduced. In combination with the work principle of power systems,the usage and maintenance of the power system is elaborated,and some existing problems are also talked about.

  6. 3D 打印技术对装备维修保障的影响与对策%Influence of 3D Printing Technology on Equipment Maintenance Support and Relevant Countermeasures

    Institute of Scientific and Technical Information of China (English)

    郭继周; 吴集; 邓启文

    2016-01-01

    随着3D 打印技术的迅速发展和打印材料种类不断增多,3D 打印在装备维修保障领域已呈现出良好的应用前景。针对3D 打印技术的快速发展,科学分析了3D 打印技术为信息化战争装备维修保障带来的发展机遇,系统研究了3D打印技术发展对信息化战争装备维修保障的影响,提出了推进3D 打印技术在装备维修保障领域应用的对策建议。%With fast development of 3D printing technologies and increasing of printing materials, 3D printing has shown good application prospect in equipment maintenance field.Aiming at the rapid development of 3D printing technologies,the paper scientifically researches on the opportunities the 3D technology has offered for equipment maintenance support of information-based warfare,system-atically studies on the influence of such technology on the equipment maintenance support of informa-tion-based warfare and brings out some countermeasures and suggestions on how to facilitate the ap-plications of 3D printing technology in equipment maintenance support.

  7. 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…

  8. 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。

  9. Construction of Evaluation Index System of Supply Chain for Equipment Maintenance Spare Parts%装备维修备件供应链评价指标体系构建

    Institute of Scientific and Technical Information of China (English)

    周洁; 倪明仿

    2014-01-01

    以装备维修备件供应链为研究对象,研究了其组成结构,分析了其运行的本质及过程。参考商业领域供应链评价指标体系,从稳定性、经济性和运行效率3个方面构建了4个层次、12个指标组成的装备维修备件供应链评价指标体系,可为建立装备维修备件供应链定期评价机制、促进装备维修备件供应链的持续发展提供参考。%Taking the supply chain of equipment maintenance spare parts as object of study,the composi-tion structure is proposed,and the nature and working process is analyzed.Reading evaluation index sys-tem of supply chain in commercial field for reference,the evaluation index system of supply chain for e-quipment maintenance spare parts is established,which consists of three aspects such as stability,econo-my and operation efficiency,four layers and twelve indexes.It provides references for establishment of periodical evaluation mechanism and sustained development of supply chain for equipment maintenance spare parts.

  10. 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.

  11. 基于红外热成像技术的电气设备预知维护专家系统%Predictive Maintenance Expert System for ElectricalEquipments Based on Infrared Thermal Imaging Technology

    Institute of Scientific and Technical Information of China (English)

    于晓东; 李书臣

    2011-01-01

    介绍了一种以红外热成像技术为基础的电气设备预知维护专家系统的应用设计方案,对电气设备运行维护的现状、预知维护的概念和红外热成像技术进行了简要分析,详细说明了预知维护专家系统的构成、开发过程和实际应用作,重点阐述了如何利用红外热成像技术,建立状态分析专家系统,实现电气设备的预知维护.%The application scheme for electrical equipments predictive maintenance expert system based on infrared thermal imaging technology was introduced, including the concept of predictive maintenance and infrared thermal imaging technology, and the structure of predictive maintenance expert system, and its development and application; then a state analysis expert system was built to implement predictive maintenance of e-lectrical equipments.

  12. Fleet Aviation Maintenance Organic Support (FAMOS) Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — Purpose:The Fleet Aviation Maintenance Organic Support (FAMOS) Laboratory at the Naval Air Warfare Center Aircraft Division, Lakehurst, NJ provides rapid engineering...

  13. 核电关键设备加速老化分析与维修策略研究%Analysis and Maintenance Policy on Accelerated Aging of Nuclear Power Critical Equipments

    Institute of Scientific and Technical Information of China (English)

    张圣; 李继

    2011-01-01

    Key equipments for nuclear power plants appeared accelerated aging problem, the paper gives the accelerated aging factor, the establishment of technical routes, the aging of the equipment status, to do an assessment of the reliability analysis. As well as accelerated aging mechanism analysis and countermeasures have done a study on maintenance of equipment for the next lay the foundation for the formulation of strategy.%针对核电站关键设备出现的加速老化问题,给出了加速老化的因素,制定了技术路线,对设备的老化状态、可靠性做了评估分析.并对加速老化机理分析和对策做了研究,为下一步设备维修策略的制定奠定基础.

  14. 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...

  15. 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.

  16. 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.

  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. Research of Maintainability and Validation Methods in Armored Equipment Based on Virtual Maintenance%基于虚拟维修的装甲装备维修性分析与验证方法研究

    Institute of Scientific and Technical Information of China (English)

    崔晓风; 冯武斌; 项昌乐; 王战军; 郝会兵

    2009-01-01

    Based on the VR technology and maintenance engineering theory,the simulation platform of armored equipments'virtual maintenance was established in order to realize process simulation of nonimmerse virtual maintenance.Visual reachability of every maintenance unit during maintaining was evaluated quantitatively by constructing visual inner-cone of the virtual human model,and visual reachability of a certain maintenance was evaluated quantitatively by the fuzzy mathematical theory.The feasible method can be provided for analyzing and validating quantitatively qualitative index of visual reachability in the early period of scheme demonstration,research and development of new armored equipments.%基于虚拟现实技术和维修工程理论,搭建了装甲装备虚拟维修仿真平台,实现了非沉浸式虚拟维修过程仿真.通过给虚拟人模型构造视觉内切锥,对维修作业过程中每项维修作业单元的视觉可达性给出了定量评价,结合模糊数学理论,对某一维修作业的视觉可达性给出了定量评估方法.本文为军方在新型装甲装备的方案论证和研制初期提供了维修性中的可达性等定性指标的定量化分析和验证的可行方法.

  19. 基于PLC的设备在线保养信息管理系统研究与设计%Online Equipment Maintenance Information Management System Research and Design based on PLC

    Institute of Scientific and Technical Information of China (English)

    宋西军; 曾志莲; 白日欣

    2015-01-01

    Systematic and punctual equipment is an effec-tive measure to increase the service life,reduce the failure rate and improve production efficiency. Equipment operation information of each maintenance unit could be collected by controller online instantly which will be transmitted to the maintenance information management system through serial extraction processing by the computer. Maintenance infor-mation management system generates maintenance and in-spection tasks according to the preset maintenance and in-spection plans,and manages the completion of various tasks,inspection reports,downtime information as well as the consumption of the spare parts integrated.%有计划并按时对设备进行维护保养是提高设备使用寿命、降低故障率、提高生产效率的有效措施。采用可编程控制器在线实时采集设备各保养单元的运行信息,由计算机通过串口提取这些信息并进行处理后,传输给保养信息管理系统。保养信息管理系统按照预设的保养、点检计划生成保养、点检任务,并对各种任务的完成情况、检修报告、停机信息以及备件的消耗情况进行综合管理。

  20. Handbook of Maintenance Instructions for a Replacement Pressurized R-F Unit to be used with Model AN/APS-15A Aircraft Radar Equipment

    Science.gov (United States)

    1946-04-10

    hret If the two grid tnltaget are IW> degreet out of I’ll i« the tontrol grid potitite «wing lannot tin- the gat tube , tim > the thield grid it...isiio of a aaaaaeuea of the type used in radar arc each thai «here a «er* low tube ior ia—lei currcat for low pabsr iwnlrtud«. hat there a a tharp

  1. 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.

  2. 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,...

  3. 医护人员医疗设备使用及维护知识考核实施方法探讨%Investigation on Implementation Methods of Medical Equipment Use and Maintenance Skills Assessment for Medical Workers

    Institute of Scientific and Technical Information of China (English)

    王碧涛; 王官; 杨志刚; 高龙虎; 苗文贵; 焦恒来; 赵国斌; 王丽华

    2011-01-01

    阐述了在开展医护人员医疗设备使用及维护知识考核准备阶段、实施阶段、小结和总结及延续阶段具体工作内容,探讨了考核的具体实施方法.通过精心准备、严格实施、及时总结和补充这样严谨、有效、安全、有序的考核,广大医护人员使用医疗设备的现状必然会得到极大改善,最终确保医疗设备完好、安全运行,让最大程度发挥医疗设备功能,从而带动更大的社会效益和经济效益.%Three stages(preparation stage, implementation stage, summary and conclusion and additional stage) of the medical equipment use and maintenance skills assessment are described. The specific implementation methods are invcstigated. The assessment with dedicated prepraration, strict implementation, timely summing up and supplement is a rigorous, efficient, safe and orderly assessment. Though the assessment, the situation of medical equipment use and maintenance will be greatly improved. It can better ensure the medical equipment integrity and safety, and eventually maximize the equipment functions and win greater social efficiency and economic benefits.[Chinese Medical Equipment Jouma1.2011 ,32(7) :119-120

  4. 故障数据在科研试验装备维修保障中的应用%Application of Fault Data in Maintenance of Scientific Test Equipments

    Institute of Scientific and Technical Information of China (English)

    刘广军; 雷伶俐; 张亮; 柴俊敏

    2015-01-01

    针对科研试验装备可修系统故障数据的特点,对故障数据在科研试验装备维修保障中的应用进行研究.介绍应用于可修系统故障数据分析的时齐泊松过程和非时齐泊松过程模型及其在故障数据分析中的适用性检验方法,并通过实例介绍可修系统故障数据分析的步骤.结果表明:该方法能判断科研试验装备可靠性发展趋势,在一定程度上克服主观臆断,为装备维修保障决策提供科学依据.%Aiming at the characteristic of the fault data which belongs to the repairable scientific test equipments, the application of the fault data in maintenance of the scientific being studied. Models of homogeneous Possion process and non-homogeneous Possion process and their usability in fault data analysis of repairable equipments be introduced, the steps of the fault data analysis of the repairable equipments illustrated through an example, it shows that the reliability trend of the scientific test equipment can be judged through the fault data analysis, to a certain extent, the supposition can be avoided and the scientific basis for the decision of equipment maintenance be provided.

  5. 四轮转向挂装车液压系统的设计%The Design of Hydraulic System of a Four-wheel-steering Loading Truck for Equipment Hanging on Aircraft

    Institute of Scientific and Technical Information of China (English)

    洪曼; 王志; 陈文科; 温琦; 杨力

    2016-01-01

    该文主要介绍了四轮驱动挂装车液压系统的设计原理,简要介绍了挂装车的结构设计。该挂装车采用后轮驱动、四轮转向的方式,其工作装置可以在6个自由度上进行调整,并在驻车制动、工作装置液压系统中设置应急系统,确保挂装车的作业安全。样机的研制成功证明了该挂装车液压系统的设计是合理、适用的。%This paper describes the design of the hydraulic system of the loading truck for equipment hanging on aircraft with four wheels steering. And the paper describes the design of the truck’s structure. The truck which with rear-wheel-drive and four-wheel-steering has a hanging structure which with 6-freedom. For the safety of the truck during hanging equipment on aircraft, there is an emergency hydraulic-circuit connecting to the parking hydraulic-circuit and the hanging hydraulic-circuit. The success of designing and producing the first truck proves that the design of hydraulic system of the truck is logical and useful.

  6. 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

  7. Advanced risk assessment of the effects of graphite fibers on electronic and electric equipment, phase 1. [simulating vulnerability to airports and communities from fibers released during aircraft fires

    Science.gov (United States)

    Pocinki, L. S.; Kaplan, L. D.; Cornell, M. E.; Greenstone, R.

    1979-01-01

    A model was developed to generate quantitative estimates of the risk associated with the release of graphite fibers during fires involving commercial aircraft constructed with graphite fiber composite materials. The model was used to estimate the risk associated with accidents at several U.S. airports. These results were then combined to provide an estimate of the total risk to the nation.

  8. Aircraft Environmental System Mechanic, 2-9. Block IV--Utility Systems and Flight Line Maintenance. Military Curriculum Materials for Vocational and Technical Education.

    Science.gov (United States)

    Ohio State Univ., Columbus. National Center for Research in Vocational Education.

    This publication contains a teaching guide and student instructional materials for conducting a high school or adult vocational education course to train persons to perform duties as an aircraft environmental systems mechanic. The instructional design for this course is self-paced and/or small group-paced. Instructor materials contained in the…

  9. 基于PDA的信息设备运维管理系统开发%Development of PDA-Oriented Operation and Maintenance Management System for Information Equipment

    Institute of Scientific and Technical Information of China (English)

    翟凤杰

    2014-01-01

    基于手持移动PDA终端平台,设计并开发出供信息设备运维部门使用的运维管理信息系统,实现在现场进行运维记录的登记,为管理部门进行运维绩效的考核以及信息设备维护的决策提供了可靠的保证。%Based on hand-held mobile personal digital assistant (PDA) terminal platform, our hospital designs and develops an operation and maintenance management system for information equipment. With the application of the system, operation and maintenance records can be registered, which will provide reliable guarantee for performance appraisal and decision making of management department.

  10. Application maintenance outsourcing of training center's equipment%实训中心数控机床社会化维修模式的探索与实践

    Institute of Scientific and Technical Information of China (English)

    曹健

    2012-01-01

    The main task of CNC training center is to provide a workplace, where students can learn and practise how to applicate CNC machine. Outsourcing equipment maintenance can keep machine working normal so that the teaching can carry out smoothly. And it also can reduce maintenance costs and human resource costs.%数控实训基地是训练学生数控技术应用能力的实践场所.采用专业化、市场化的设备维修保养模式,可以保持数控机床良好运行状态,保证实践教学顺利进行,又可以降低设备的维修成本和人力资源成本.

  11. 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.

  12. Study of the Evaluation of Equipment Maintenance Support System Used the Civil-Military Integration%军民一体化装备维修保障体系评价研究

    Institute of Scientific and Technical Information of China (English)

    王少凯; 徐鹏翔; 石凤稳; 王明明

    2015-01-01

    随着我国社会主义市场经济体制的逐步完善,越来越多的装备维修保障任务交由民间力量完成,已有了军地双方共同参与保障的运作模式,军民一体化装备维修保障体系也初步形成。为加深对军民一体化装备维修保障体系的理解,更好地促进体系健康发展,本文通过建立评价指标体系,确立评价模型,利用多层次-模糊综合评价法对体系的科学性做出评价,得出现行体系总体良好的结论。最后,对体系的改进提出了合理化的建议。%As the socialist market economic system gradually improves in china, more and more complicated high-tech equipment maintenance support tasks are completed by the civil power, the operation mode of military and civilian participation security have been established, civil-military integration of equipment maintenance support system is preliminary formed. To deepen the understanding of civil-military integration of equipment maintenance support system, and to better promote the healthy development of the system, through the establishment of evaluation index system and the evaluation model, this paper evaluates the scientificity of the system using the method of multi-level fuzzy comprehensive evaluation method, and come to the conclusion that the current system is overall good. Finally, the paper puts forward rational suggestions for the system improvement.

  13. 超效率数据包络分析模型在装备维修保障方案评估中的应用%Application of SE-DEA model on the Equipment Maintenance Support Scheme Evaluation

    Institute of Scientific and Technical Information of China (English)

    王秀华; 李忠光; 何志桂

    2016-01-01

    针对传统数据包络分析方法在方案评估中不能对多个有效决策单元进一步排序的问题,采用超效率数据包络分析对装备维修保障方案进行评估。分析构建了评估指标体系,建立了基于超效率数据包络分析的装备维修保障方案评估模型;运用MATLAB编程,得到各方案的目标函数值θ*,依据θ*值大小对装备维修保障方案的优劣进行排序,并对无效方案提出改进办法。实际应用表明了方法的有效性。%To tackle the issue that traditional data envelopment analysis cannot further sort multi-ple effective decision units in the scheme evaluation,the paper conducts evaluation on the equipment maintenance support plan with super efficiency data envelopment analysis (SE-DEA).The analysis is used to build up an evaluation indicator system and then an equipment maintenance support scheme based on super efficiency data envelopment analysis;it draws the obj ective function value of each scheme by MATLAB programming. The paper also sorts the equipment maintenance support schemes according to the advantages and disadvantages in terms of value and proposes improvement approaches for ineffective schemes.The practical applications demonstrate the effectiveness of the ap-proaches.

  14. 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.

  15. 一种适用于状态检修的电力设备时变停运模型分析%An analysis of time varying outagemodel of power equipment for condition based maintenance

    Institute of Scientific and Technical Information of China (English)

    杜飞

    2016-01-01

    In this paper,the state maintenance of power equipment is studied,the principle and characteristics of the time varying outage model are analyzed,and the applicability of the model is analyzed.%本文围绕电力设备的状态检修进行研究,分析时变停运模型的原理及特点,结合其在状态检修的应用效果,分析其适用性.

  16. Research on on line monitoring and condition based maintenance technology of power primary equipment%电力一次设备的在线监测及其状态检修技术的研究

    Institute of Scientific and Technical Information of China (English)

    金兴武

    2016-01-01

    In this paper,the on-line monitoring and condition based maintenance technology of power primary equipment are studied,hoping that this research can promote the development of China's electric power industry to a certain extent.%本文就电力一次设备的在线监测及其状态检修技术进行了具体研究,希望这一研究能够在一定程度上推动我国电力事业的相关发展.

  17. 机械工程设备检修中存在的问题及完善对策%Problems Existed in Mechanical Engineering Equipment Maintenance and Countermeasures

    Institute of Scientific and Technical Information of China (English)

    吕鑫

    2014-01-01

    Problems existed in the current mechanical engineering equipment maintenance and repair industry have hampered the normal development of the enterprise to a certain extent. In this paper, it discusses these problems and puts forward some improving countermeasures.%当前我国机械工程设备检修行业中还存在诸多问题,在一定程度上制约了企业的正常发展,下面文章就重点探讨当前机械工程设备检修中存在的问题,并提出完善对策。

  18. 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.

  19. 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。

  20. 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

  1. 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...

  2. 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,...

  3. 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...

  4. 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,...

  5. 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.

  6. Electrical Mechanical Equipment Maintenance and Management Problems and Countermeasures%机电设备维修与管理存在的问题及对策研究

    Institute of Scientific and Technical Information of China (English)

    李春

    2015-01-01

    In the nuclear power plant construction and use, management and maintenance of mechanical and electrical equipment is the key to ensure the normal operation of nuclear power plants. Because of the late start building nuclear power plants, nuclear power plants in the maintenance and management of mechanical and electrical equipment, there are many deficiencies. Now solve these problems, propose some practical measures for the relevant reference unit.%在核电站的建设和使用过程中,机电设备的维修管理工作是保证核电站正常运行的关键。由于我国核电站建设起步较晚,在核电站机电设备的维修和管理中还有很多的不足。现针对这些不足,提出一些切实可行的措施,以供相关单位参考。

  7. Virtual Maintenance Training and Assessment System of Warship Cannon Fire Controls Equipment%舰炮火控设备虚拟维修训练与考核系统

    Institute of Scientific and Technical Information of China (English)

    傅茂聪; 陈维义

    2016-01-01

    为提升海军舰员级火控设备维修训练水平,利用虚拟维修技术手段开发了针对舰炮火控设备的虚拟维修训练与考核系统,设计确定了系统的基本功能以及软件结构,建立了设备的数据模型,应用状态机的方法对系统的主要功能加以实现,并结合具体实例对系统相关功能与界面进行了介绍。%To promote the level of fire controls equipment maintenance training of marine crews ,a training and assess-ment system of the warship cannon fire controls equipment which is to do the virtual operation and maintenance is developed by the means of virtual manufacturing technology .The basic function of the system and the soft-ware structure are designed and determined ,so is the data structuring model .The method of state machine carries out the main function of system ,the function and the interface are introduced with some concrete examples .

  8. 天津地铁线路设备委外维修管理探讨%Discussion on Outsourcing Maintenance Management of Tianjin Subway Line Equipment

    Institute of Scientific and Technical Information of China (English)

    李金良; 莫佳琪

    2014-01-01

    针对天津地铁工务全委外维修体制,根据实际管理经验,系统阐述天津地铁线路轨道系统合同监管及技术检查管理重点。并结合管理经验,分析总结目前地铁工务委外维修体制的不足之处。%In view of the Tianjin Metro outsourcing maintenance system, according to the practical management experience, the paper elaborates the Tianjin subway line rail system check contract regulation and technical management. And combined with management experience, the deficiency of metro works outsourcing maintenance system is analyzed.

  9. 改装体检直升机与歼击机飞行员听力分析%Comparative Analysis of Audiology Data in Pilots Under Physical Examination for Modification to Equipment of High Performance Aircraft

    Institute of Scientific and Technical Information of China (English)

    熊巍; 徐先荣; 刘玉华; 郑军; 翟丽红

    2011-01-01

    Objective Compare and analyze the audiology data (PTA'and DPOAE) in pilots under physical examination for modification to equipment of high performance aircrafts,in order to get preliminary understanding of hearing difference of the pilots from types of aircraft. Methods We collected the audiology data of 82 pilots who accepted physical examination for modification to equipment of high performance aircraft in our hospital. Eighty- two cases were divided into two groups according to the type of aircraft (41 cases in helicopter group and 41 cases in fighter group). We investigated the difference of PTA(250~8 kHz)and DPOAE(1~8 kHz)results between these two groups. Results All the pilots got the flying qualification for the high performance aircraft. In all the tested frequency, binaural average hearing threshold and DPOAE amplitude were within the normal range. The PTA difference between the two groups was not statistically significant. At 3 kHz and 4 kHz, the difference of right ear DPOAE amplitude between the two groups was statistically significant, but had no clinical significance. The incidence of abnormal high frequency PTA between the two groups had no statistically significant difference. But the incidence of abnormal high frequency DPOAE had statistically significant difference. There was a higher incidence of abnormal high frequency DPOAE in fighter pilots. Conclusion There were no significant differences in hearing between the helicopter and fighter pilots under physical examination for modification to equipment of high performance. But in fighter pilots more likely had potential hearing loss. This may be related to the stronger protection awareness in helicopter pilots.%目的 比较改装体检直升机与歼击机飞行员听力学检查结果,初步了解不同机种飞行员的听力差异.方法 对进行改装体检的直升机和歼击机飞行员各41名进行纯音听阈和畸变产物耳声发射检查,比较两组结果.结果 根据《中

  10. Analysis on the Wing Jacking Equipment of Civil Aircraft%民机机翼千斤顶顶升装置分析

    Institute of Scientific and Technical Information of China (English)

    薄晓莉

    2011-01-01

    Jacking condition must be considered when maintaining and replacing parts of a civil aircraft. In this paper, relevant airworthiness standards is be analyzed, and the advantages and disadvantages of the 13737 and A320 aircraft wing lifting devices is compared, through the force transmission analysis. Vertical component of the 13737 wing jacking load is home by the reinforcing rib and pass to the front spar, horizontal component is borne by the lower skin through the hearing. Vertical component of the A320 wing jacking load is home by the reinforcing rib and pass to the rear spar, horizontal component is borne by the lower skin and the reinforcing rib through the bearing. The aircraft wing jacking connection joints of 13737 is simple, but the force transmission of A320 aircraft wing lifting connection is clearer.%千斤顶顶升情况是民用飞机在进行维修、更换零部件时必须考虑的一个状态。对民机顶升的相关适航条款进行了理解;对B737及A320的机翼顶升装置进行了总结对比,通过传力分析,比较了其优缺点。两种机型的传力方式稍有不同:B737机翼顶升载荷的垂直分量由加强肋承担主要传递到前梁,水平分量通过挤压由下壁板承担;A320机翼顶升载荷的垂直分量由加强肋承担,主要传递到后梁,水平分量通过挤压由下壁板和加强肋承担。B737机翼顶升接头的连接方式操作简单,但A320机翼顶升接头传力路径更清晰。

  11. 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.

  12. 基于比较语言的军民融合式装备维修保障风险评估%Risk Assessment of Military-Civil Integration Equipment Maintenance Support Based on Comparative Linguistic Expressions

    Institute of Scientific and Technical Information of China (English)

    王双川; 吕瑞强; 李德权; 杨阳

    2016-01-01

    针对地方维修商参与部队装备维修保障给军方带来诸多风险的问题,系统分析了军民融合式装备维修保障存在的风险因素,提出了一种基于比较语言表达的风险评估模型。将比较语言表达式转换为犹豫模糊语言术语集(HFLTS),并计算出由梯形模糊隶属函数表示的 HFLTS 的模糊包络,最后应用双基点法进行维修商的选择决策。通过实例验证了模型的有效性。%Aimming at solving the problem of risk assessment derived from local equipment maintenance providers, this pa-per analyzes the risks factors which exist in military-civil integration equipment maintenance support systematically and pres-entes a risk assessment model which is based on comparative linguistic expressions. At first, the comparative linguistic ex-pressions are transformed into hesitant fuzzy linguistic term sets(HFLTS). Then, the fuzzy envelope of HFLTS represented by trapezoidal fuzzy membership function is calculated. Finally, the maintenance providers are selected by a method of double base points. And the validity of this model is verified through an example.

  13. Total Productive Maintenance at Paccar INC

    OpenAIRE

    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.

  14. Total Productive Maintenance at Paccar INC

    Directory of Open Access Journals (Sweden)

    Ştefan Farkas

    2010-06-01

    Full Text Available 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.

  15. 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.

  16. 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。

  17. Aircraft Data Acquisition

    OpenAIRE

    Elena BALMUS

    2016-01-01

    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...

  18. 14 CFR 29.1415 - Ditching equipment.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Ditching equipment. 29.1415 Section 29.1415 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT Equipment Safety Equipment § 29.1415 Ditching equipment....

  19. HVAC controls: Operation and maintenance

    Energy Technology Data Exchange (ETDEWEB)

    Gupton, G.W. Jr.

    1987-01-01

    The introductory chapters review HVAC system processes and equipment, control system types and equipment, and equipment-to-control interactions. The succeeding chapters cover specific control systems functions, including electrical interlock and motor starting, electrical and electronic control system diagrams, pneumatic control system diagrams, air supply to pneumatic control systems, and control system maintenance.

  20. Discussion on the Teaching Method on the Course of Equipment Management and Preventive Maintenance%“设备管理与预防维修”课程的教学方法探讨

    Institute of Scientific and Technical Information of China (English)

    唐文华

    2014-01-01

    在分析“设备管理与预防维修”课程原有的教学方法存在问题的基础上,提出改革讲授法、设计案例教学、采用实践性教学和多媒体教学等途径探索更符合该课程教学的教学方法。%On the basis of analysis of existing problems in original teaching methods on the course of e-quipment management and preventive maintenance, the author proposes some teaching approaches for the course as reforming of lecture methods, designing teaching cases, applying practical teaching and use of mul-timedia teaching methods.

  1. 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.

  2. 基于EON的弹射救生设备虚拟维修训练系统设计与实现%Design and Realization of Virtual Maintenance Training System for Ejection Rescue Equipment Based on EON

    Institute of Scientific and Technical Information of China (English)

    李林; 李海军; 梁宇

    2011-01-01

    In accordance with the engineering practice, function requirement of Virtual Maintenance Training System for ejection rescue equipment was analyzed. The requirements and rules about the design of this System was identified. The software and hardware configuration scheme was fixed. Finally, a suit of simulation system based on EON was developed, which has been testified effective in meeting the needs of training for unit.%从工程实际出发,对弹射救生设备虚拟维修训练系统的功能需求进行了分析,明确了系统的设计要求和设计准则,确定了系统的软硬件配置方案,开发了一套基于EON的仿真系统.实际应用表明,这一系统可以满足部队训练需求.

  3. Aircraft electromagnetic compatibility

    Science.gov (United States)

    Clarke, Clifton A.; Larsen, William E.

    1987-06-01

    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.

  4. 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.

  5. 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.

  6. Method of Military-civilian Integration Maintenance Support Risk Evaluation of High-tech Equipment%高新装备军民融合维修保障风险评估方法

    Institute of Scientific and Technical Information of China (English)

    刘志勇; 姚俊金; 赵美

    2016-01-01

    In order to raise the risk management ability of military-civilian integration maintenance support, all kinds of the risk factors are indentified, and the flow of the risk evaluation is constructed. Then TFN-AHP method is put forward to evaluate the risk through introducing the trigonometry fuzzy number (TFN) in the process of determining the weight. And this method is verified to be good and effective to equipment risk evaluation by an example of artillery military-civilian integration maintenance support. The method can greatly reduce personal influence of evaluation and improve the rationality and reliability of equipment risk evaluation.%为提高军民融合维修保障风险管理能力,在识别高新装备军民融合维修保障中存在的各类风险基础上,构建了基于TFN-AHP的高新装备军民融合维修保障风险评估流程。提出在传统AHP权重确定过程中引入三角模糊数的 TNF-AHP 进行风险评估的方法,并以某型装备军民融合维修保障为例进行了演示验证。该方法能够减少评价者打分时的个人影响,提高风险评估判断矩阵的合理性和可信性。

  7. Analyzing opportunities for energy conservation in municipal fleet management: service delivery patterns, equipment, supply, operations, and maintenance. Information bulletin of the energy task force of the urban consortium

    Energy Technology Data Exchange (ETDEWEB)

    None

    1980-01-01

    Vehicle fleet management as a five-step process is portrayed and the multiple energy conservation opportunities within each step are examined. The five steps described are, configuration of service area and service delivery patterns, equipping the fleet, operating the fleet, maintaining the fleet, and supplying the fleet with fuel. A systems approach to decision making about municipal fleets is outlined. Management options, control techniques, and devices are suggested for each of the five steps. Reference is made to analytic tools which will assist in deliberating options at each of these steps. These tools are presented in a list. Four concise case studies of jurisdictions which are taking deliberate steps to reduce fuel use are presented. Key opportunities for fuel conservation are then summarized, followed by a selected bibliography, and listing of reference materials and additional resources.

  8. Prediction Methods for Demand of Maintenance Spare Parts of Electromechanical Equipment for Expressways%高速公路机电设备维修备件需求预测方法

    Institute of Scientific and Technical Information of China (English)

    郭琼琼; 邢国英; 王沛; 祝日星

    2016-01-01

    对高速公路机电设备维修备件的需求进行连续型和间断型预测分析。连续型需求预测采用指数平滑法和移动平均法,间断型需求预测采用贝叶斯预测法。2种方法均能准确预测维修备件的需求,有助于确定备件的合理储备量和制定科学的采购计划,从而在保障企业运营安全和高服务水平的同时,有效降低运营成本,节省流动资金。%This paper conducts continuous and intermittent predication analysis for the demand of maintenance spare parts of electromechanical equipment for expressways. The continuous demand prediction adopts the exponential smoothing method and the moving average method, and the intermittent demand predictions adopts the Bayesian prediction method. These methods can predict the demand of maintenance spare parts accurately and are helpful for determining reasonable reserves of spare parts and laying down scientific procurement plans so as to reduce operating costs and save liquid capitals effectively while guaranteeing operating safety and high service level of the enterprise.

  9. 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.

  10. experiences for CNC equipment maintenance under combination of learning with working%工学结合下数控设备维修的心得体会

    Institute of Scientific and Technical Information of China (English)

    荣伟

    2013-01-01

    In order to adapt to the development trend of modern manufacturing technology, combined engineering as the entry point, and actively explore new ways of "construction of integrated curriculum of NC machining and equipment repair". For processing business through School-enterprise cooperation, bringing considerable profits to the school, also can improve practice experience for the teachers and the students , and master CNC equipment repair skills, and understand the demand of the society, improve their practical ability, train applied talents of technology,and lay a solid basis for the need of sustainable development.%为了适应现代制造技术的发展趋势,以工学结合为切入点,积极探索《数控加工及设备维修》一体化课程建设的新途径。通过校企合作进行来料加工业务,为学院增加可观的利润,还可以为教师和学生通过在自己的实践加工经验,掌握数控设备维修的技能,了解行业和社会需求,提高自身实践能力,培养技术应用型人才,适应产业持续发展的迫切需要打下坚实的基础。

  11. 46 CFR 185.702 - Maintenance.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Maintenance. 185.702 Section 185.702 Shipping COAST...) OPERATIONS Operational Readiness, Maintenance, and Inspection of Lifesaving Equipment § 185.702 Maintenance. (a) The manufacturer's instructions for onboard maintenance of survival craft, rescue boats,...

  12. 46 CFR 122.702 - Maintenance.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Maintenance. 122.702 Section 122.702 Shipping COAST..., Maintenance, and Inspection of Lifesaving Equipment § 122.702 Maintenance. (a) The manufacturer's instructions for onboard maintenance of survival craft, rescue boats, and launching appliances, manufactured on...

  13. Practice of US Army Military-civil Integration Equipment Maintenance Support and Its Revelation%美军军民一体化装备维修保障的实践及启示

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    从创新保障理论、制定法律法规、成立专门机构、重视指挥管理和完善市场机制5个方面对美军军民一体化装备维修保障实践进行了梳理,总结了其4个主要特点:保障力量多元化、保障模式多样化、管理方法科学化和法律法规体系化。在此基础上,归纳了其存在的5方面问题:对承包商过度依赖、承包商雇员的自身安全、承包商雇员战场管理和指挥、承包商战备以及承包商失泄密。最后,结合我军军民一体化装备维修保障建设的现实需求,借鉴美军经验,从理论研究工作、法规制度、组织结构、力量建设、保障模式和信息系统6个方面提出了可行的措施建议。%The paper analyzes practices of US army military-civil integration equipment maintenance sup-port from the following aspects:innovation of support theory,formulating laws and regulations,setting up specialized agencies,attaching great importance to the command and management and improving the mar-ket mechanism.At the same time,its characteristics are summarized as follows:pluralism of support forces,diversification of support mode,science of management methods,systematics of laws and regula-tions.On this basis,its existing problems are concluded as follows:excessive reliance on contractors, contractor employees’own safety,battlefield command and management for contractor employees,con-tractor combat readiness,divulging and disclosing a secret of contractors.Finally,using the experience of US army for reference,combining with the pratical demand of our army military-civil integration equip-ment maintenance support construction,it puts forward the feasible suggestion and countermeasures from the aspects of theory research,laws and regulations,organization structure,force construction,support model,information system.

  14. Aerodynamic Analysis of Civil Aircraft Equipped with Winglet on Numerical Simulation%民机翼梢小翼气动特性数值模拟分析研究

    Institute of Scientific and Technical Information of China (English)

    蒋彪; 李杰

    2011-01-01

    A certain type of civil aircraft wing and body are equipped with two different forms of winglets - Fusion Winglet and tip- fence. The point- to- point patched multi- block technology was used to generate high quality grid by ICEM software. Three- dimensional time- dependent compressible Reynolds- averaged Navier- Stokes equations were solved with third- order upwind- biased flux- difference splitting method and approximate factorization method. The numerical simulation was adopted to obtain reasonable geometry parameters of two different winglets at cruise point. The result data indicates that both winglet has increased lift coefficient and decreased drag coefficient, compared with the original wing- body model. The fusion wing, let increased the lift to drag ratio by 9%, and the tip fence increased the lift to drag ratio by 6%. However, the advantage of wing-body equipped with tip-fence in moment characteristic is obvious.The conclusions have great engineering application value in the design of civil aircraft winglet.%针对某民机翼身组合体加装不同翼梢小翼--融合式翼梢小翼和翼尖涡扩散器进行对比分析.用软件ICEM生成原始翼身组合体及加装不同小翼的翼身组合体的点对点对接多块网格技术生成高质量的数值计算网格,运用Roe三阶迎风偏置通量差分裂方法和隐式近似因子分解方法求解雷诺平均N-S方程.对两种不同翼梢小翼在巡航点进行数值模拟,得到合理的翼稍小翼几何参数;对比升阻特性数据,两种翼梢小翼都可以提高升力系数,减少阻力系数.相对原始翼身组合体,融合式翼梢小翼升阻比增加9%,翼尖涡扩散器升阻比增加6%;但翼尖涡扩散器在力矩特性上有较大优势.所得结论对民用飞机翼稍小翼设计工作具有较大的工程应用价值.

  15. 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.

  16. Mobile network maintenance (GSM)

    CERN Multimedia

    IT Department

    2009-01-01

    Maintenance work will be carried out on the CERN mobile network infrastructure (GSM) on the 23 and 24 July from 6 p.m. to 6 a.m. in order to replace discontinued equipment and to increase the bandwidth capacity of the GSM mobile network. All CERN GSM emitters (40 units) will be moved one by one to the new infrastructure during the maintenance. The call of a user connected to an emitter at the time of its maintenance will be cut off. However, the general overlapping of the GSM radio coverage should mean that users are able immediately to call again should their call be interrupted. IT/CS/CS

  17. Powerful drivers for maintenance.

    Science.gov (United States)

    Mason, Steve

    2013-10-01

    A UPS system is the central building block of a Power Continuity Plan in medical facilities, but such equipment requires careful maintenance to continue fulfilling its vital role in delivering power resilience, and avoid catastrophic downtime, and potentially tens of thousands of pounds in costs to rectify the issues caused by poor maintenance. In our latest technical guidance article, Steve Mason, MD at Bender UK, one of the leading providers of isolated power supplies, theatre control panels, UPS systems, and Steris surgical products, and a turnkey provider of solutions for safe handling of electrical power and advanced provision of critical care products, examines some of the issue surrounding UPS maintenance.

  18. 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...

  19. 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...

  20. Electrical Ground Support Equipment Fabrication, Specification for

    Science.gov (United States)

    Denson, Erik C.

    2014-01-01

    This document specifies parts, materials, and processes used in the fabrication, maintenance, repair, and procurement of electrical and electronic control and monitoring equipment associated with ground support equipment (GSE) at the Kennedy Space Center (KSC).

  1. Study on Electrically Conductive Elastomer Shielding Efficiency for HIRF Condition of Civil Aircraft Electronics Equipment Bay%民用飞机设备舱舱门导电橡胶屏蔽效能研究

    Institute of Scientific and Technical Information of China (English)

    王永根; 代继刚; 王乐意

    2014-01-01

    通过理论计算和软件仿真相结合的方法,给出了民用飞机电子电气设备舱高强度辐射场( HIRF)条件下的腔体谐振特性,并对腔体内部电磁场进行仿真。通过对比舱门缝隙导电橡胶屏蔽效能的仿真结果,给出了电子电气设备舱不同状态下的电磁场分布结果,为电子电气舱舱门屏蔽设计提供技术支持。%Resonance Characteristic of the civil aircraft electronics equipment bay ( E/E Bay ) on HIRF condition is obtained through combining the theory calculation with software simulation method .Compa-ring the simulation results of the electrically conductive elastomer shield efficiency , the electromagnetic field inside the E/E bay are supplied ,and this simulation results can support the E/E bay door design .

  2. 14 CFR 91.327 - Aircraft having a special airworthiness certificate in the light-sport category: Operating...

    Science.gov (United States)

    2010-01-01

    ... certificated repairman with a light-sport aircraft maintenance rating, an appropriately rated mechanic, or an... (light-sport aircraft) with a maintenance rating, an appropriately rated mechanic, or an appropriately... certificated repairman with a light-sport aircraft maintenance rating, an appropriately rated mechanic, or...

  3. 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.

  4. 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...

  5. 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...

  6. 14 CFR 23.1415 - Ditching equipment.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Ditching equipment. 23.1415 Section 23.1415 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS... Ditching equipment. (a) Emergency flotation and signaling equipment required by any operating rule in...

  7. 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

  8. 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。

  9. 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.

  10. 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....

  11. Mobile SPC Equipment Problems and Maintenance Technology%试论移动电话程控交换设备出现的问题及维护技术

    Institute of Scientific and Technical Information of China (English)

    杨真

    2011-01-01

    随着科学技术的快速发展,电话成为人们生活不可缺少的重要部分,人们对电话的要求不断提高,依赖性逐渐增强。这对移动电信提出了更高的要求。程控交换技术缓解了移动电话业务过于繁忙导致人工服务滞后的现象,文章针对移动电话程控交换设备出现的问题,探讨了相应的维护技术。%With the rapid development of science and technology,phones become an important and indispensable part of life,people's increasing demands for telephone,dependence gradually increased,which is a higher mobile telecommunications requirements.Program-controlled switching technology to ease the mobile phone business is too busy leading to the phenomenon of human services lag,articles for mobile PBX equipment problems,the maintenance of the appropriate technology.

  12. 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.

  13. 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.

  14. 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

  15. Technical Documentation Challenges in Aviation Maintenance: A Proceedings Report

    Science.gov (United States)

    2012-11-01

    Repair, and Overhaul organizations ( MROs ) where each aircraft must be maintained by maintenance documentation specific to the aircraft owner and...registry number. This means that an MRO is likely to have different work instructions for each aircraft in the shop, even though they are the same...documentation for aviation maintenance. All 28 attendees possessed considerable expertise from either operations or science, including MROs , Original

  16. Asset Management and Facility Equipment Maintenance Nexus: Maintenance Effectiveness

    Science.gov (United States)

    2013-09-01

    Other Structural Systems No PMs for H4LONLSO H4LONLSOB LON Lock, Bridges No PMs for H4LONLSOB H4LONLSOBFDLON Lock, Footbridge , Deck & Miscellaneous...No PMs for H4LONLSOBFD H4LONLSOBFPLON Lock, Footbridge , Piers, Supports & Foundations No PMs for H4LONLSOBFP H4LONLSOBFS LON Lock, Footbridge

  17. Studying the Advance Maintenance Practice & Computerised Maintenance

    Directory of Open Access Journals (Sweden)

    Eng Hamdy Ibrahim Mohamed Mahmoud

    2016-02-01

    Full Text Available Many companieѕ think of maintenance aѕ an inevitable ѕource of coѕt. For theѕe companieѕ maintenance operationѕ have a corrective function and are only executed in emergency conditionѕ. Today, thiѕ form of intervention iѕ no longer acceptable becauѕe of certain critical elementѕ ѕuch aѕ product quality, plant ѕafety, and the increaѕe in maintenance department coѕtѕ which can repreѕent from 15 to 70% of total production coѕtѕ. The managerѕ have to ѕelect the beѕt maintenance policy for each piece of equipment or ѕyѕtem from a ѕet of poѕѕible alternativeѕ. For example, corrective, preventive, opportuniѕtic, condition-baѕed and predictive maintenance policieѕ are conѕidered in thiѕ paper.

  18. 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.

  19. 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.

  20. 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

  1. 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...

  2. Decision-making model of location and algorithm for ship maintenance equipment support system%舰船维修器材保障点选址决策模型及算法

    Institute of Scientific and Technical Information of China (English)

    董鹏; 杨超; 罗朝晖; 万波

    2012-01-01

    传统的最大覆盖选址模型没有考虑对服务半径外的需求点的满足和服务时间的响应,而在舰船维修器材保障中,不论需求点到保障点的距离是否大于服务半径,都应对其进行保障服务,且在保障过程中要满足保障时间控制在不影响舰船正常维修任务时间内.针对此问题,运用广义最大覆盖选址模型和时间满意度函数,构建基于时间满意的广义最大覆盖选址模型,并运用一种混合算法——基于遗传模拟退火算法的BP算法对模型进行求解.最后,运用该算法对实例进行了分析计算,计算结果验证了该算法的有效性.%Conventional maximal covering location models do not meet a demand for the system beyond service radius or response to service time. But in the ship maintenance equipment support, whether or not the distance between demand system and support system is larger than service radius, the demand system should be supported. In the course of support, the time of support should be controlled so as not to affect naval normal maintenance task. Considering this problem, the paper applies the generalized maximal covering location model and the time satisfaction function, designs a time-satisfaction-based generalized maximal covering location model, and then adopts applies a mixed algorithm-BP algorithm based on the genetic algorithm and the simulated annealing algorithm-to calculate this model, and finally uses it to calculate an example, whose result verifies its correctness.

  3. Job Attitudes of USAF Aircraft Maintenance Personnel.

    Science.gov (United States)

    1986-04-01

    8217" . * " ."".." " " - %’p *. faction and productivity in the workplace (Steers, 1981). Frederick Herzberg , in his Two-Factor Theory, thought V. of job satisfaction...are responsibility, recogni- tion, the work itself and achievement (Williams, 1978). Herzberg felt that the lack of motivation factors would not...job satisfaction has only scratched the surface. Certain motivation theories, such as ’aslow and Herzberg are general and their abilities to be

  4. Immersive Learning Simulations in Aircraft Maintenance Training

    Science.gov (United States)

    2010-02-15

    You might just get a “serious game,” or “as proposed by the eLearning Guild, you could get an Immersive Learning Simulation.”3 Quoting the... eLearning Guild, Caspian Learning, in a report for the United Kingdom Ministry of Defense, defined an Immersive Learning Simulation (ILS) as “an optimized...their studies that “the savings are more likely to be achieved, and the improvements in training quality more easily justified, when technology is

  5. 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.

  6. 14 CFR 91.209 - Aircraft lights.

    Science.gov (United States)

    2010-01-01

    ...; or (iii) is in an area that is marked by obstruction lights; (3) Anchor an aircraft unless the aircraft— (i) Has lighted anchor lights; or (ii) Is in an area where anchor lights are not required on vessels; or (b) Operate an aircraft that is equipped with an anticollision light system, unless it...

  7. 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)...

  8. 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.

  9. 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

  10. 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...

  11. Missile Maintenance Career Ladder

    Science.gov (United States)

    1994-01-01

    K696 INSPECT GENERAL PURPOSE EQUIPMENT 48 E176 LOCATE INFORMATION IN TOs 44 F235 PERFORM PREOPERATIONAL CHECKS ON MECHANICAL 42 MAINTENANCE SUPPORT...ON COLORIMETRIC GAS DETECTORS 24 27 TABLE 9 REPRESENTATIVE TASKS PERFORMED BY 2M052A PERSONNEL PERCENT MEMBERS PERFORMING TASKS (N=436) E176 LOCATE...AS STAFF MEETINGS, 67 BRIEFINGS, CONFERENCES, OR WORKSHOPS B30 CONDUCT PERFORMANCE FEEDBACK WORKSHEET SESSIONS 64 E176 LOCATE INFORMATION IN TOs 57

  12. 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...

  13. 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.

  14. 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...

  15. Causes of aircraft electrical failures

    Science.gov (United States)

    Galler, Donald; Slenski, George

    1991-08-01

    The results of a survey of data on failures of aircraft electronic and electrical components that was conducted to identify problematic components are reported. The motivation for the work was to determine priorities for future work on the development of accident investigation techniques for aircraft electrical components. The primary source of data was the Airforce Mishap Database, which is maintained by the Directorate of Aerospace Safety at Norton Air Force Base. Published data from the Air Force Avionics Integrity Program (AVIP) and Hughes Aircraft were also reviewed. Statistical data from these three sources are presented. Two major conclusions are that problems with interconnections are major contributors to aircraft electrical equipment failures, and that environmental factors, especially corrosion, are significant contributors to connector problems.

  16. Proceedings of the 10. CIM maintenance/engineering conference and technical program: Maintenance engineering 2000 and beyond

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-31

    Proceedings of the conference, encompassing some 40 presentations, are contained on this CD-ROM. The presentations dealt with the technology impacts on the mining industry in Canada, with emphasis on maintenance. Electrical equipment, underground equipment, hoisting and surface equipment, materials and electric power, and new trends in maintenance management are featured.

  17. 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 disadvantages...

  18. Paranal maintenance and CMMS experience

    Science.gov (United States)

    Montano, Nelson

    2004-10-01

    During the last four years of operations, low technical downtime has been one of the relevant records of the Paranal Observatory. From the beginning of the Very Large Telescope (VLT) project, European Southern Observatory (ESO) has considered the implementation of a proper maintenance strategy a fundamental point in order to ensure low technical down time and preserve the Observatory's assets. The implementation of the maintenance strategy was based on the following aspects: - Strong maintenance sense during the design stage. Line Replacement Unit (LRU) concept, standardization and modularity of the Observatory equipment - Creation of a dedicated team for Maintenance - The implementation of a Computerized Maintenance Management System After four operational years, the result of these aspects has exceeded the expectations; the Observatory has been operating with high availability under a sustainable strategy. The strengths of the maintenance strategy have been based on modern maintenance concepts applied by regular production companies, where any minute of down time involves high cost. The operation of the actual Paranal Maintenance System is based mainly on proactive activities, such as regular inspections, preventive maintenance (PM) and predictive maintenance (PdM) plans. Nevertheless, it has been necessary to implement a strong plan for corrective maintenance (CM). The Spare Parts Strategy has also been an important point linked to the Maintenance Strategy and CMMS implementation. At present, almost 4,000 items related to the Observatory spare parts are loaded into the CMMS database. Currently, we are studying the implementation of a Reliability Centered Maintenance (RCM) project in one of our critical systems The following document presents the actual status of the Paranal Maintenance Strategy and which have been the motivations to implement the established strategy.

  19. 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。

  20. 基于改进IOWA组合模型的舰船装备维修费预测%Forecast of ship equipment maintenance cost with improved IOWA combination model

    Institute of Scientific and Technical Information of China (English)

    谢力; 魏汝祥; 尹相平; 尚凡葵

    2012-01-01

    针对诱导有序加权平均(induced ordered weighted averaging,IOWA)组合模型中,单项预测方法精度相同时诱导值可能存在多种不同排列顺序的问题,提出综合考虑预测方法的历史性能确定其唯一排序;针对实践中单项预测方法较多时,IOWA组合模型构建过程十分复杂的问题,通过构建造合于Matlab软件计算的最优化模型矩阵形式,降低计算复杂性;结合舰船装备维修费预测中样本小、预测方法多的特征,采用各单项预测方法的历史平均拟合精度来估计其预测期诱导值的排序,并以此计算组合预测值.最后实例说明了该方法的有效性.%In the induced ordered weighted averaging (IOWA) combination model,there may be many different ordinal arranges of induced values when individual forecasting methods have the same precision.Aiming at this problem,the unique ordering can be determinated by taking the history performance of each forecasting method into account synthetically.Meanwhile,the constructing process of the IOWA combination model is very complex when there are many individual forecasting methods.Then the matrix form of the optimization model that is fit for operating the Matlab software is described,which can reduce the computational complexity.Considering the characters of small samples and many forecasting methods in forecasting ship equipment maintenance cost,the ordering of induced values in forecasting period is estimated by the historical averaging fitting precision of individual forecasting methods,and the value of combination forecast is calculated.Finally an example is given to show the availability of this method.

  1. Perspectives of civil aircraft avionics development

    Directory of Open Access Journals (Sweden)

    А. В. Наумов

    1999-05-01

    Full Text Available 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

  2. 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.

  3. 29 CFR 1926.432 - Environmental deterioration of equipment.

    Science.gov (United States)

    2010-07-01

    ..., DEPARTMENT OF LABOR (CONTINUED) SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION Electrical Safety-Related Maintenance and Environmental Considerations § 1926.432 Environmental deterioration of equipment....

  4. 兼顾供电可靠性和 LCC 的变电站主设备检修策略优化方法%Maintenance Strategy Optimization for Main Equipment in Substations Considering Both Power Supply Reliability and Life Cycle Cost

    Institute of Scientific and Technical Information of China (English)

    郭丽娟; 陶松梅; 张炜

    2016-01-01

    提出了一种能够同时兼顾变电站供电可靠性和设备全寿命周期成本(LCC)的设备检修决策优化方法。该方法选择变电站中的待检变压器和断路器,利用健康指数(HI)和役龄回退因子分别计算待检设备检修前后的故障率;通过变电站的预想事故分析和负荷削减状态的枚举,计算设备检修前后变电站电量不足期望(EENS)和设备 LCC 的变化量;最后,分别给出以可靠性优先、经济性优先和费效比优先作为评价指标的优化检修策略。某220 kV 变电站的检修决策实例表明,该方法能够综合考虑变电站的供电可靠性和设备的 LCC ,制定合理有效的检修策略。在有效降低变电站供电风险的前提下提高设备检修效率,减小检修维护成本。%A new optimization method for maintenance decision‐making considering both power supply reliability of the substation and the life cycle cost ( LCC ) of equipment is proposed . According to the Transmission Equipment Risk Assessment Guidelines" made by Southern Power Grid Company , transformers or circuit breakers to be maintained are chosen . Then the failure rate of equipment before and after maintenance is calculated based on the health index ( HI) and the age reduction factor , respectively . Further , the variable quantity of the substation expected energy not served ( EENS) and the LCC of equipment before and after maintenance can be quantified by applying the contingency analysis and the load reduction state enumeration , respectively . Finally , an optimized maintenance strategy is given according to three different assessment criteria , including the priority to reliability , economy and cost‐effectiveness ratio . An application example in a 220 kV substation shows the method is able to improve maintenance efficiency and reduce cost with the risks to the substation effectively reduced .

  5. 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.

  6. 基于顺序相关调整时间的FJSP与设备维护计划集成优化∗%Integrated Optimization of Flexible Job Shop Scheduling Problem and Equipment Maintenance Plan with Sequence-dependent Setup Times

    Institute of Scientific and Technical Information of China (English)

    查靓; 金花; 潘志成; 袁庆松

    2016-01-01

    为了能根据设备的实际工作时间制定维护计划,以及利用设备空闲时间进行预防维护,研究了考虑顺序相关调整时间( SDST)的柔性作业车间调度( FJSP)和设备维护计划的集成优化问题。以完工时间最小为目标,建立FJSP-SDST与不等周期设备维护的集成优化模型。提出了基于遗传优化的两阶段算法,先得到基础FJSP-SDST的调度方案,然后在设备的可靠度低于阈值时安排不等周期实时维护计划,以一定的概率在基础调度方案中的空闲时间段插入维护时间,从而得到集成方案。针对某实例的计算结果表明,考虑顺序相关调整时间的调度方案的总完成时间优于原调度方案的总完成时间,集成优化方案的总完成时间优于定期维护方案的总完成时间。%In order to draw up an equipment maintenance plan based on actual working time and free time, the paper studied the integrated optimization of flexible job shop scheduling problem ( FJSP) and equipment maintenance plan with sequence-dependent setup times ( SDST) . The object of the integrated optimization model is to pursue the minimum of makespan. The paper proposed a two-stage algorithm based on the genet-ic algorithm to solve the problem. Firstly generated basic FJSP-SDST schedules. Secondly probabilistically arranged the unequal periodic equipment maintenance at the equipment’ s free time if the reliability of the e-quipment is below the threshold value. Then obtained an integrated plan. The optimization result of a practi-cal example showed that the makespan of FJSP-SDST was less than the original one and the makespan of the integrated optimization was less than the makespan of equipment maintenance at regular intervals.

  7. Maintenance Reliability Program as Essential Prerequisite of Flight Safety

    OpenAIRE

    Željko Marušić; Izidor Alfirević; Omer Pita

    2009-01-01

    This article is dealing with airline industry standards regarding reliability reporting and with practical aspects of reliability program deployment within an operator’s organization. Reliability program is a tool for monitoring the effectiveness of aircraft maintenance program. Apart from being an effective tool for maintenance program development, the reliability program can bring to light flaws in aircraft design, discrepant operational procedures, discrepancies in line and base maintenanc...

  8. 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...

  9. Scorpion: Close Air Support (CAS) aircraft

    Science.gov (United States)

    Allen, Chris; Cheng, Rendy; Koehler, Grant; Lyon, Sean; Paguio, Cecilia

    1991-01-01

    The objective is to outline the results of the preliminary design of the Scorpion, a proposed close air support aircraft. The results obtained include complete preliminary analysis of the aircraft in the areas of aerodynamics, structures, avionics and electronics, stability and control, weight and balance, propulsion systems, and costs. A conventional wing, twin jet, twin-tail aircraft was chosen to maximize the desirable characteristics. The Scorpion will feature low speed maneuverability, high survivability, low cost, and low maintenance. The life cycle cost per aircraft will be 17.5 million dollars. The maximum takeoff weight will be 52,760 pounds. Wing loading will be 90 psf. The thrust to weight will be 0.6 lbs/lb. This aircraft meets the specified mission requirements. Some modifications have been suggested to further optimize the design.

  10. 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.

  11. Review on condition-based equipment residual life prediction and preventive maintenance scheduling%基于状态监测的设备寿命预测与预防维护规划研究进展

    Institute of Scientific and Technical Information of China (English)

    孟光; 尤明懿

    2011-01-01

    Residual life prediction and preventive maintenance scheduling are two research fields that have significant impact on the maintenance efficiency in a condition-based maintenance program. The recently published representative works in these two fields were summarized and categorized. The emerging new research fields such as similarity-based residual life prediction and on-line preventive maintenance scheduling were highlighted. The applicability of the residual life prediction techniques and preventive maintenance scheduling models were discussed. Some necessary and valuable research directions were also provided.%寿命预测和预防维护规划是基于状态监测的维护中对维护效果有重大影响的两个研究内容.对近年来这两方面的代表性工作进行了总结和多层次分类,特别突出“基于相似性的寿命预测方法”和“在线预防维护模型”等正逐步兴起的新的研究领域.进而讨论了各类方法的适用范围,最后展望了一些必要的、有价值的研究方向.

  12. 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)

  13. 从医护患心理角度探讨提升医疗设备维修服务质量%Discussion on Promoting Maintenance Service Quality of Medical Equipments from Medical Care Personnel's ,Patients' and Their Family's Psychology

    Institute of Scientific and Technical Information of China (English)

    郑小溪

    2012-01-01

    The new challenges of maintenance service is clarified, the psychological characteristics of medical care personnel, patients and their family when medical equipments broken down is analyzed. New thinking of promoting maintenance service quality from medical care personnel's,patients' and their family's psychology is discussed particularly.%阐明了医疗设备维修工作面临的新挑战,分析了医护人员、患者及其家属在医疗设备故障后的心理特点,重点从医护人员、患者及其家属的心理状态方面探讨提升医疗设备维修服务质量的几点新思考.

  14. Minor Maintenance. A Resource Manual for Custodians.

    Science.gov (United States)

    Florida State Dept. of Education, Tallahassee.

    Areas of minor maintenance covered by this manual are--(1) electrical, (2) carpentry, (3) plumbing, (4) painting, and (5) masonry. Each area is defined, tools and equipment for maintenance are listed, and the job procedure is given. The description of electrical work also covers sources of electricity and power transmission. The description of…

  15. 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.

  16. 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

  17. Aircraft conceptual design modelling incorporating reliability and maintainability predictions

    OpenAIRE

    Vaziry-Zanjany , Mohammad Ali (F)

    1996-01-01

    A computer assisted conceptual aircraft design program has been developed (CACAD). It has an optimisation capability, with extensive break-down in maintenance costs. CACAD's aim is to optimise the size, and configurations of turbofan-powered transport aircraft. A methodology was developed to enhance the reliability of current aircraft systems, and was applied to avionics systems. R&M models of thermal management were developed and linked with avionics failure rate and its ma...

  18. 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 ...

  19. 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 ...

  20. 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.

  1. 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...

  2. Aircraft Derived Data Validation Algorithms

    Science.gov (United States)

    2012-08-06

    to be equipped with Flight Management Systems (FMSs) that use sophisticated digital computers to assist pilots, allowing them to fly more fuel...some basic data is prepared. These include calculations of aircraft position projeted on a three-dimensional Cartesian coordinate system, and...Administration FMS Flight Management System GA General Aviation NextGen Next Generation Air Transportation System NGA National Geospatial-Intelligence

  3. 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.

  4. Aircraft emission research within ISTC project

    Energy Technology Data Exchange (ETDEWEB)

    Dedesh, V.; Leut, A.; Boris, S. [Scientific Research Center at the Gromov Flight, Research Institute (Russian Federation)

    2001-08-01

    This research is aimed at obtaining experimental data on contamination of the atmosphere by emissions from aircraft engines in cruise flight conditions, to establish and improve models of the physical and chemical processes which take place in the aircraft wake and in the general zone of air traffic corridors. An Su-24 'sounder' aircraft equipped with an air sampling and collection system has been established to obtain the necessary atmospheric samples in flight, and procedures have been developed for performing the research flights. Techniques have also been developed for chemical analysis of the samples. (authors)

  5. 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 §...

  6. 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.

  7. A methodology for hard/soft information fusion in the condition monitoring of aircraft

    Science.gov (United States)

    Bernardo, Joseph T.

    2013-05-01

    Condition-based maintenance (CBM) refers to the philosophy of performing maintenance when the need arises, based upon indicators of deterioration in the condition of the machinery. Traditionally, CBM involves equipping machinery with electronic sensors that continuously monitor components and collect data for analysis. The addition of the multisensory capability of human cognitive functions (i.e., sensemaking, problem detection, planning, adaptation, coordination, naturalistic decision making) to traditional CBM may create a fuller picture of machinery condition. Cognitive systems engineering techniques provide an opportunity to utilize a dynamic resource—people acting as soft sensors. The literature is extensive on techniques to fuse data from electronic sensors, but little work exists on fusing data from humans with that from electronic sensors (i.e., hard/soft fusion). The purpose of my research is to explore, observe, investigate, analyze, and evaluate the fusion of pilot and maintainer knowledge, experiences, and sensory perceptions with digital maintenance resources. Hard/soft information fusion has the potential to increase problem detection capability, improve flight safety, and increase mission readiness. This proposed project consists the creation of a methodology that is based upon the Living Laboratories framework, a research methodology that is built upon cognitive engineering principles1. This study performs a critical assessment of concept, which will support development of activities to demonstrate hard/soft information fusion in operationally relevant scenarios of aircraft maintenance. It consists of fieldwork, knowledge elicitation to inform a simulation and a prototype.

  8. 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

  9. Model-based fault diagnosis framework for effective predictive maintenance / B.B. Akindele

    OpenAIRE

    Akindele, Babatunde Babajide

    2010-01-01

    Predictive maintenance is a proactive maintenance strategy that is aimed at preventing the unexpected failure of equipment through condition monitoring of the health and performance of the equipment. Incessant equipment outage resulting in low availability of production facilities is a major issue in the Nigerian manufacturing environment. Improving equipment availability in Nigeria industry through institution of a full featured predictive maintenance has been suggested by many authors. T...

  10. 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.

  11. 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...

  12. 46 CFR 122.704 - Maintenance of falls.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Maintenance of falls. 122.704 Section 122.704 Shipping..., Maintenance, and Inspection of Lifesaving Equipment § 122.704 Maintenance of falls. (a) Each fall used in a... fall must be renewed when necessary due to deterioration or at internals of not more than 5...

  13. Opportune maintenance and predictive maintenance decision support

    OpenAIRE

    Thomas, Edouard; Levrat, Eric; Iung, Benoît; Cocheteux, Pierre

    2009-01-01

    International audience; 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 c...

  14. Contract Issues in the Sale of Commercial Aircraft.

    Science.gov (United States)

    1983-09-01

    two industry segments , transportation equip- ment, and missiles and space. rriasportation aquipment operations are concerned with the development...estimated that ten percent of the wide body fle -t is for sale in the used aircraft markt . The price for used narrow body aircraft has fallen also [Ref

  15. 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.

  16. 关于高校多媒体教室设备管理与维护的探讨%Management and maintenance of multimedia classroom equipment in university

    Institute of Scientific and Technical Information of China (English)

    邵斌

    2014-01-01

    Due to its unique advantages, multimedia technology is widely used in college teaching. Starting from the aspects of software and hardware, this article intends to make a research of personnel mechanism of multimedia classrooms and the management of equipment respectively, and further analyzes the methods on how to manage and maintain multimedia classroom equipment so as to enhance the effect of classroom teaching.%多媒体技术由于其特有的优点,在高校教学中被广泛使用。从软件方面和硬件方面着手,分别研究分析多媒体教室人员机构和设备的配备与管理,全方位阐述多媒体教室设备管理与维护的方法和途径,以提升课堂教学效果。

  17. 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.

  18. 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.

  19. The Maintenance and Fault Treatment of Water-power Engineering Electrical Equipment Operation%水电工程机电设备运行的维护与故障处理

    Institute of Scientific and Technical Information of China (English)

    邹淑梅

    2011-01-01

    The normal maintenance requirements hydroelectric generating set records and tours regularly checked and maintained daily cleaning, strengthening oil management.Failure of generator set and motor failures, should be taken to deal with scientific and effective measures and methods.%水轮发电机组的正常维护要求定时记录和巡回检查、保持日常清理、加强用油管理.对水轮发电机组故障和电动机故障,应采取科学有效的处理措施和方法.

  20. 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

  1. 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

  2. 森林火灾应急扑救中航空飞机装备的种类及技术%Type of Aviation Aircraft Equipment and Technology for Forest Fire Emergency Suppression

    Institute of Scientific and Technical Information of China (English)

    高仲亮; 王秋华; 舒立福; 张明远

    2014-01-01

    As an important part of forest fire monitoring and fighting,aviation aircraft consist of fixed-wing aircraft and heli-copters. They attack fast and flexibly,without terrain restrictions,and can realize airborne command,aircraft landing for fire suppression,line-down fire suppression, chemical-based fire suppression,bucket fire suppression,artificial precipitation and fire suppression during glide. In view of such disadvantags as the restrictions involved in the implementation of aerial fire sup-pression,low utilization rate of water and low efficiency of fire suppression, and such advantages as water-based fire suppres-sion and the low cost,safety and environmental protection features of water,it is proposed that water is the best fire extin-guishing agent and water mist is the best way of fire extinctio. Improvement of the utilization rate of water-based fire extinc-tion,research and development of water mist-based fire extinguishing system and new types of airborne water mist fire extin-guishing bombs to exert their superiority in forest fire fighting will be the development direction of aerial fire suppression.%航空飞机是监测和扑救森林火灾的重要组成部分,分为固定翼机和直升机。航空飞机具有出击迅速、机动灵活、不受地形限制等优点,能进行空中指挥、机降灭火、索降灭火、化学灭火、吊桶灭火以及人工增雨和滑降灭火等作业。针对航空灭火水利用率和灭火效率低的缺点,以及水灭火的优越性和水的廉价、安全环保特性,提出水是最好的灭火剂,细水雾是其最佳的作用方式。提高水灭火的利用率、研发细水雾灭火系统和新型机载细水雾灭火弹,发挥其扑救森林火灾的优越性,将是航空灭火的发展方向。

  3. 78 FR 65153 - Special Conditions: Learjet Model 45 Series Airplanes; Aircraft Electronic System Security...

    Science.gov (United States)

    2013-10-31

    ... Learjet Model 45 series airplanes. The Model 45 series airplanes are swept-wing aircraft equipped with two... type certification basis for Learjet Model 45 series airplanes. System Security Protection for Aircraft... ensure that continued airworthiness of the aircraft is maintained, including all...

  4. 75 FR 82329 - Airworthiness Directives; Piper Aircraft, Inc. (Type Certificate Previously Held by The New Piper...

    Science.gov (United States)

    2010-12-30

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc. (Type Certificate Previously Held by The New Piper Aircraft, Inc.) Models PA-46-310P, PA- 46-350P, and... certain Piper Aircraft, Inc. Models PA-46-310P and PA-46-350P airplanes that are equipped with a Lewis...

  5. 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.

  6. 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.

  7. The vibration testing requirements and related problems for military aircraft equipment (I):Vibration testing requirements and comparison of airborne equipment and external hanging of military jet and propeller aircraft in GJB 150.16/16A%军用飞机机载设备振动试验要求和有关问题的讨论(一):GJB 150.16/16A军用喷气式飞机和螺旋桨式飞机机载设备和外挂的振动试验要求及对比分析

    Institute of Scientific and Technical Information of China (English)

    祝耀昌; 石鹏颉; 程丛高; 张建军; 徐俊

    2016-01-01

    文章分为3部分:第1部分简单介绍振动类型、振动引起的失效模式和应用,特别是列表详细介绍了GJB 150.16和GJB 150.16A中规定或推荐的军用喷气式飞机和螺旋桨飞机设备及其外挂与外挂上的设备的振动试验要求、特点和两标准相关内容的对比分析;第2部分则详细介绍了两标准中规定或推荐的军用直升机和各类飞机发动机设备的振动试验要求、特点以及相关内容的对比分析;第3部分介绍和分析了航空装备研制生产中这2个标准的应用情况和遇到的问题,并就一些重大问题进行了分析概括并提出了一些看法和建议。%The paper is divided into three parts: the first part introduces the vibration types, the failure modes caused by the vibration and their applications, with emphasis on the vibration testing requirements and the characteristics of equipment and stores in military jet and propeller aircraft in detail, recommended in GJB 150.16 and GJB 150.16A, and the related contents in GJB 150.16/16A are compared and analyzed. The second part introduces the vibration testing requirements and characteristics of military helicopter and kinds of engine equipment in detail, recommended in GJB 150.16 and GJB 150.16A, and the related contents in GJB 150.16/16A are compared and analyzed. At last, the applications of and problems with the two standards in the aviation equipment development and production are introduced and analyzed in the third part, and some suggestions are made.

  8. 军用飞机机载设备振动试验要求和有关问题的讨论(二):GJB 150.16/16A中军用直升机和各种军用飞机发动机设备的振动试验要求及对比分析%The vibration testing requirements and related problems for military aircraft equipment (II):Vibration testing requirements and comparison of engine equipment of military helicopters and different military aircrafts in GJB 150.16/16A

    Institute of Scientific and Technical Information of China (English)

    祝耀昌; 石鹏颉; 程丛高; 张建军; 徐俊

    2016-01-01

    The paper is divided into three parts. The first part introduces the vibration types, the failure modes caused by the vibration and applications, with emphasis on the vibration testing requirements and the characteristics of equipment and stores in military jet and propeller aircraft in detail, recommended in GJB 150.16 and GJB 150.16A, and the related contents in GJB 150.16/16A are compared and analyzed. The second part introduces the vibration testing requirements and characteristics of military helicopter and kinds of engine equipment in detail, recommended in GJB 150.16 and GJB 150.16A, and the related contents in GJB 150.16/16A are compared and analyzed. At last, the applications and the standards in the aviation equipment development and production are introduced and analyzed in the third part, and some suggestions are made. This is the second part.%文章分为3部分:第1部分简单介绍振动类型、振动引起的失效模式和应用,特别是列表详细介绍了GJB 150.16和GJB 150.16A中规定或推荐的军用喷气式飞机和螺旋桨飞机设备及其外挂和外挂上的设备的振动试验要求、特点和两标准中相关内容的对比分析;第2部分则详细介绍了两标准中规定或推荐的军用直升机和各类飞机发动机设备的振动试验要求、特点以及相关内容的对比分析;第3部分介绍和分析了航空装备研制生产中这2个标准的应用情况和遇到的问题,对一些重大问题进行了分析概括并提出了一些看法和建议。此为第2部分。

  9. 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

  10. 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 §...

  11. TOTAL PRODUCTIVE MAINTENANCE, A CENTRAL PREOCCUPATION OF THE MANAGERS

    OpenAIRE

    2013-01-01

    This present study demonstrates that the role of the mangers in the productive maintenance is currently becoming more important. This assessment is formulated starting from the daily realities regarding the growth of the proportions of productions and along with these the growth of the volume of equipments which need a better care and maintenance for a proper operation. The productive maintenance has developed and emerged out of this necessity. Therefore, the productive maintenance in the eco...

  12. Aircraft Carriers

    DEFF Research Database (Denmark)

    Nødskov, Kim; Kværnø, Ole

    in Asia and will balance the carrier acquisitions of the United States, the United Kingdom, Russia and India. China’s current military strategy is predominantly defensive, its offensive elements being mainly focused on Taiwan. If China decides to acquire a large carrier with offensive capabilities......, then the country will also acquire the capability to project military power into the region beyond Taiwan, which it does not possess today. In this way, China will have the military capability to permit a change of strategy from the mainly defensive, mainland, Taiwan-based strategy to a more assertive strategy...... catapult with which to launch the fi ghter aircraft, not to mention the possible development of a nuclear power plant for the ship. The Russian press has indicated that China is negotiating to buy SU-33 fi ghters, which Russia uses on the Kuznetsov carrier. The SU-33 is, in its modernized version...

  13. 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,…

  14. 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...

  15. 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.

  16. 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.

  17. Electromagnetic-Repulsion Systems For Deicing Aircraft

    Science.gov (United States)

    Smith, Samuel O.; Zieve, Peter

    1994-01-01

    Improved eddy-current electromagnetic-repulsion deicing systems developed for use on variety of exterior aircraft surfaces like leading edges of wings, engine inlets, propellers, and helicopter rotors. Fit to exterior surfaces, as retrofits or original equipment. Systems light in weight, consume little average power, and capable of protecting against severe icing conditions.

  18. Aircraft Environmental Systems Mechanic. Part 1.

    Science.gov (United States)

    Chanute AFB Technical Training Center, IL.

    This packet contains learning modules for a self-paced course in aircraft environmental systems mechanics that was developed for the Air Force. Each learning module consists of some or all of the following: objectives, instructions, equipment, procedures, information sheets, handouts, self-tests with answers, review section, tests, and response…

  19. 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.

  20. Aircraft Electric Secondary Power

    Science.gov (United States)

    1983-01-01

    Technologies resulted to aircraft power systems and aircraft in which all secondary power is supplied electrically are discussed. A high-voltage dc power generating system for fighter aircraft, permanent magnet motors and generators for aircraft, lightweight transformers, and the installation of electric generators on turbine engines are among the topics discussed.

  1. TOTAL PRODUCTIVE MAINTENANCE, A CENTRAL PREOCCUPATION OF THE MANAGERS

    Directory of Open Access Journals (Sweden)

    Daniela POPESCU

    2013-06-01

    Full Text Available This present study demonstrates that the role of the mangers in the productive maintenance is currently becoming more important. This assessment is formulated starting from the daily realities regarding the growth of the proportions of productions and along with these the growth of the volume of equipments which need a better care and maintenance for a proper operation. The productive maintenance has developed and emerged out of this necessity. Therefore, the productive maintenance in the economic theory represents the maintenance of the equipments and fabric at the highest productive level by cooperating with all departments related to production. This aspect points out that the maintenance and repair works of the equipments have to be the main preoccupation of the personnel and especially of the managers.

  2. 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.

  3. Analyse of Maintenance Cost in ST

    CERN Document Server

    Jenssen, B W

    2001-01-01

    An analyse has been carried out in ST concerning the total costs for the division. Even though the target was the maintenance costs in ST, the global budget over has been analysed. This has been done since there is close relation between investments & consolidation and the required level for maintenance. The purpose of the analyse was to focus on maintenance cost in ST as a ratio of total maintenance costs over the replacement value of the equipment, and to make some comparisons with other industries and laboratories. Families of equipment have been defined and their corresponding ratios calculated. This first approach gives us some "quantitative" measurements. This analyse should be combined with performance indicators (more "qualitative" measurements) that are telling us how well we are performing. This will help us in defending our budget, make better priorities, and we will satisfy the requirements from our external auditors.

  4. 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

  5. Augmented Reality for Maintenance and Repair (ARMAR)

    Science.gov (United States)

    2007-08-01

    The purpose of this research, Augmented Reality for Maintenance and Repair (ARMAR), was to research the design and development of experimental... augmented reality systems for maintenance job aiding. The goal was to explore and evaluate the feasibility of developing prototype adaptive augmented ... reality systems that can be used to investigate how real time computer graphics, overlaid on and registered with the actual equipment being maintained, can

  6. 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.

  7. Technical information report: Plasma melter operation, reliability, and maintenance analysis

    Energy Technology Data Exchange (ETDEWEB)

    Hendrickson, D.W. [ed.

    1995-03-14

    This document provides a technical report of operability, reliability, and maintenance of a plasma melter for low-level waste vitrification, in support of the Hanford Tank Waste Remediation System (TWRS) Low-Level Waste (LLW) Vitrification Program. A process description is provided that minimizes maintenance and downtime and includes material and energy balances, equipment sizes and arrangement, startup/operation/maintence/shutdown cycle descriptions, and basis for scale-up to a 200 metric ton/day production facility. Operational requirements are provided including utilities, feeds, labor, and maintenance. Equipment reliability estimates and maintenance requirements are provided which includes a list of failure modes, responses, and consequences.

  8. Preventive Maintenance Optimization in Healthcare Domain: Status of Research and Perspective

    Directory of Open Access Journals (Sweden)

    H. Mahfoud

    2016-01-01

    Full Text Available Although medical equipment maintenance has been carefully managed for years, very few in-depth studies have been conducted to evaluate the effectiveness and efficiency of these implemented preventive maintenance strategies, especially after the debate about the credibility of manufacturer’s recommendations has increased in the clinical engineering community. Facing the dilemma of merely following manufactures maintenance manual or establishing an evidence-based maintenance, medical equipment maintenance could have exploited an advanced area in operations research which is maintenance optimization research. In this paper, we review and examine carefully the status of application oriented research on preventive maintenance optimization of medical devices. This study addresses preventive healthcare maintenance with a focus on factors influencing the maintenance decision making. The analysis is structured by defining different aspects necessary to construct a maintenance optimization model. We conclusively propose directions to develop suitable tools for better healthcare maintenance management.

  9. The Application and Development of Non-destructive Testing in Aircraft Engine Maintenance%无损检测在航空发动机维修中的应用和发展

    Institute of Scientific and Technical Information of China (English)

    郑丽; 罗泽明; 张波

    2014-01-01

    从无损检测的定义和分类出发,介绍了在航空发动机的维修中,广泛采用的四种无损检测方法---孔探仪检测、涡流检测、超声波检测、轴承原位检测的应用情况,总结了无损检测的四个发展趋势,对工程人员和维修人员具有一定的参考价值。%Based on the definition and classify of non-destructive testing , the paper describes four widely-used non-destructive testing methods --- borescope testing, eddy current testing, ultrasonic testing and bearing in-situ testing , then summarizes the research trends of non-destructive testing from four ways . The results have some reference values to engineer and maintenance personnel.

  10. Medical equipment in government health facilities: Missed opportunities

    OpenAIRE

    Pardeshi Geeta

    2005-01-01

    BACKGROUND: The availability and optimal utilization of medical equipment is important for improving the quality of health services. Significant investments are made for the purchase, maintenance and repair of medical equipment. Inadequate management of these equipment will result in financial losses and deprive the public of the intended benefits. This analysis is based on the conceptual framework drawn from the WHO recommended- lifecycle of medical equipment. AIMS: (1) To identify the probl...

  11. Drilling equipment

    Energy Technology Data Exchange (ETDEWEB)

    Voyevodin, Yu.M.; Kholosha, Ye.G.; Leshchenko, A.G.; Timchenko, A.I.

    1979-01-10

    The invention refers to units designed for extracting minerals by mechanical action on the face by a cutting tool. There is a known drills which includes a pulse device which contains a combustion chamber, cylinder, piston-percussion tool and cutting tool. The combustion chamber and the sub-piston cavity of the cylinder are connected by a channel in which there is a distributor. Its shortcoming is the fact that the pulse device does not guarantee the necessary motion of the actuating mechanism for its velocity and frequency of the shocks on the cutting tool. This reduces the efficiency of the operation and limits the area of application. The purpose of the proposed invention is to improve productivity of the device. This is achieved because the head of the drill is equipped with a 2-piston pulse device which contains 2-combustion chambers, 2 working cylinders, 2 piston percussion instruments, a rod with gas-conducting and connecting channels for interconnection of the sub-piston cavities and combustion chambers of both cylinders. The spent gases of one cylinder are used for closing the combustion chamber of the second cylinder.

  12. 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.

  13. 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…

  14. Planning for recall of maintenance manpower

    OpenAIRE

    Poh, Yang Siang Kelvin

    2015-01-01

    Approved for public release; distribution is unlimited Mission availability is a key component of system effectiveness wherein manpower forms a critical part of the resource requirements. Within the United States Air Force, military technicians supplement essential maintenance and logistics support for fighter aircraft. Under certain conditions, the placement of these technicians in their roles as reserve personnel creates disproportionate economic loss for the parent unit and the reserve ...

  15. Human Factors in Aviation Maintenance. Phase 1

    Science.gov (United States)

    1991-11-01

    communication in the aircraft logs , pi- during the visit? lots would sometimes verbally describe the per- formance of the plane to a lead mechanic’ or...however, handwritten input may eventually be usefl for implemeinting technology in aviation maintenance and spcf Ic maneac’ ctiiis. other applications...functions. When the auto is referred for service of a int ermittent or other problem, the data recorder may be hooked up by modem to enable e data log to

  16. Aquatic Equipment Information.

    Science.gov (United States)

    Sova, Ruth

    Equipment usually used in water exercise programs is designed for variety, intensity, and program necessity. This guide discusses aquatic equipment under the following headings: (1) equipment design; (2) equipment principles; (3) precautions and contraindications; (4) population contraindications; and (5) choosing equipment. Equipment is used…

  17. Reliability Centered Maintenance in Schedule Improvement of Automotive Assembly Industry

    Directory of Open Access Journals (Sweden)

    Rizauddin Ramli

    2012-01-01

    Full Text Available Problem statement: Today, in many automotive manufacturing companies, maintenance management is an important factor to maintain the plant operation and production equipments. Approach: In this study, we present an implementation of Reliability Centered Maintenance (RCM practice in one of the automotive manufacturing company in Malaysia. The RCM practice was used to assist the company in focusing their maintenance activities based on the criticalities of the equipments by applying the Failure Modes and Effects Analysis (FMEA. The implementation of RCM was carried out in 4 stages; preparation, system analysis, decision making and feedback. The aim of RCM was to reduce the number of maintenance checklist and to improve significantly the integrity of maintenance practice. Results: As a result, the new RCM framework was generated where Class A equipment was at the top of the monthly maintenance frequency priority, followed by Class B and Class C equipment which had lesser critical value. Conclusion: The new RCM framework is used to conduct visible guideline and propose a new maintenance schedule. The guideline is useful for future maintenance strategy improvement. After the implementation, it can be ascertained that our proposed RCM is useful in reducing maintenance personnel burden and this leads to improvement of productivity.

  18. VT Maintenance District Boundaries

    Data.gov (United States)

    Vermont Center for Geographic Information — Vermont has eight transportation maintenance districts which are responsible for all maintenance activities on state highways, and for providing technical assistance...

  19. Two Different Maintenance Strategies in the Hospital Environment: Preventive Maintenance for Older Technology Devices and Predictive Maintenance for Newer High-Tech Devices

    OpenAIRE

    Mana Sezdi

    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 tec...

  20. Military Airlift: C-17 Aircraft Program

    Science.gov (United States)

    2007-11-02

    out such a mission led Congress to ask DOD to conduct a study of the entire long- For more information on MRS-05, see CRS Report RS20915 . 22 Jonathan...many should be retired. Rising maintenance costs have led some to argue that more C-5s should be retired sooner, and the savings be applied to...34lighter-than-air" aircraft . Also known as airships, blimps, dirigibles, or zeppelins , these potentially large, helium-filled balloons offer many

  1. Ex-vessel remote maintenance for the Compact Ignition Tokamak

    Energy Technology Data Exchange (ETDEWEB)

    Spampinato, P.T.; Macdonald, D.

    1987-01-01

    The use of deuterium-tritium (D-T) fuel for operation of the Compact Ignition Tokamak (CIT) requires the use of remote handling technology to carry out maintenance operations on the machine. These operations consist in removing and repairing such components as diagnostic modules by using remotely operated maintenance equipment. The major equipment being developed for maintenance external to the plasma chamber includes a bridge-mounted manipulator system for test cell operations, decontamination (decon) equipment, hot cell equipment, and solid-radiation-waste-handling equipment. Wherever possible, the project will use commercially available equipment. Several areas of the maintenance system design were addressed in fiscal year (FY) 1987, including conceptual designs of manipulator systems, the start of a remote equipment research and development (RandD) program, and definition of the hot cell, decon, and equipment repair facility requirements. R and D work included preliminary demonstrations of remote handling operations on full-size, partial mock-ups of the CIT machine at the Oak Ridge National Laboratory (ORNL) Remote Operations and Maintenance Development (ROMD) Facility. 1 ref., 6 figs.

  2. Unmanned aircraft systems

    Science.gov (United States)

    Unmanned platforms have become increasingly more common in recent years for acquiring remotely sensed data. These aircraft are referred to as Unmanned Airborne Vehicles (UAV), Remotely Piloted Aircraft (RPA), Remotely Piloted Vehicles (RPV), or Unmanned Aircraft Systems (UAS), the official term used...

  3. Feasibility study: Application of RCM techniques for substation maintenance at the Bonneville Power Administration. [Reliability Centered Maintenance (RCM)

    Energy Technology Data Exchange (ETDEWEB)

    Purucker, S.L.; Tonn, B.E.; Goeltz, R.T.; James, R.D.; Kercel, S.; Rizy, D.T.; Simpson, M.L.; Van Dyke, J.W.

    1992-05-28

    This feasibility study examines reliability centered maintenance (RCM) as it applies to Bonneville Power Administrations (BPA) substation maintenance program. Reliability techniques are examined in evaluated. Existing BPA equipment maintenance procedures are documented. Equipment failure history is considered. Economic impacts are estimated. Various equipment instrumentation methods are reviewed. Based on this analysis a prototype system is proposed. The prototype will be implemented in two phases. Phase 1 is to be completed in 1992, it includes instrumenting one power transformer and one oil circuit breaker. Software development will focus on displaying data. Phase 2 is to be completed the following year. The remaining transformers and breakers will be instrumented during the second phase. Software development will focus on predictive maintenance techniques and maintenance decision support.

  4. Design of aircraft automatic test system for electrical power distribution equipment based on LabVIEW%基于LabVIEW的飞机配电控制盒自动测试系统设计

    Institute of Scientific and Technical Information of China (English)

    齐召; 李玉忍; 梁波

    2013-01-01

    The automatic test system based on LabVIEW for electrical power distribution equipment is developed for solving the problems of complicated steps,low efficiency and poor reliability of the manual test method. The system is based on the vir⁃tual instrument technology with a combination of hardware and software. The hardware is used for collection of date and the soft⁃ware is used for analysis of the date. Functions and principles of the system are introduced chiefly. The paper is focus on the de⁃sign of software. A new data management method based on configure file is detailed. The method is flexible and efficient and easy to manage data. The using of configuration file greatly improves the efficiency and scalability of the system by proving of ex⁃periments.%  针对传统飞机配电控制盒手动测试周期长、测试步骤复杂、可靠性低等弊端,提出的一种基于LabVIEW的飞机配电控制盒自动测试系统,用以实现配电盒各项性能的测试。系统采用了软硬件相结合的虚拟仪器技术,硬件实现数据的采集,软件对数据进行分析处理,实现了测试的自动化。介绍了测试系统结构组成,重点给出了系统软件部分设计实现,提出了一种利用配置文件进行指令数据管理的方法,这种方式灵活、高效,方便数据的处理以及测试系统程序的扩展。经测试系统实验证明,这种配置文件的利用方法大大提高了系统的效率。

  5. Grounding devices of electrical equipment's installation and check to maintain

    Institute of Scientific and Technical Information of China (English)

    王鹏

    2009-01-01

    At this stage in real life,the incidents of electricity are increasing,the main reason is that the subjective sense is weak,non-importance,especially the operation and maintenance is more neglected,and even there is no sense in this area.In this paper,based on electrical equipment grounding system for use in practice,simple introdusing grounding device of electrical equipment's installation and maintenance checks.

  6. A Situational Maintenance Model

    DEFF Research Database (Denmark)

    Luxhoj, James T.; Thorsteinsson, Uffe; Riis, Jens Ove

    1997-01-01

    An overview of trend in maintenance management and presentation of a situational model and an analytical tools for identification of managerial efforts in maintenance.......An overview of trend in maintenance management and presentation of a situational model and an analytical tools for identification of managerial efforts in maintenance....

  7. Maintenance as a safety issue.

    Science.gov (United States)

    White, Jim

    2008-11-01

    Because safety is related to electrical power systems maintenance, it seems reasonable to assume there could be legal issues if maintenance is not performed. OSHA has not yet taken the stand that not performing maintenance as required by the manufacturer, NFPA 70B, or ANSI/NETA MTS-07 constitutes a willful violation. OSHA defines a willful citation as one where: "the employer knowingly commits with plain indifference to the law. The employer either knows that what he or she is doing constitutes a violation, or is aware that a hazardous condition existed and made no reasonable effort to eliminate it". However, NFPA 70E 2009 requires this maintenance, and OSHA has stated on its Web site that NFPA 70E is "a guide for meeting the requirements of the OSHA electrical regulations". In addition, federal courts have found that NFPA 70E is "standard industry practice." Once a company receives and accepts a willful citation, especially if received as the result of an accident investigation, its worker's compensation protection no longer shields it. One definition given by a trial attorney for a willful citation was that it is equal to negligent behavior. Be smart: Maintain that equipment and save yourself major problems, including unscheduled shutdowns and possible litigation.

  8. An analysis of the aircraft engine Component Improvement Program (CIP) : a life cycle cost approach

    OpenAIRE

    Borer, Chris Joseph

    1990-01-01

    Approved for public release; distribution unlimited. Increasing budgetary constraints have prompted actions to reduce the maintenance cost of current naval aircraft. This thesis examines the Aircraft Engine Component Improvement Program (CIP), its impact on these cost at the organizational and intermediate levels of maintenance, and savings from these improvements. The objectives of the research were to identify current life cycle cost (LCC) models used by the Navy andor the other services...

  9. 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.

  10. Maintenance system improvement in cast iron foundry

    Directory of Open Access Journals (Sweden)

    S. Kukla

    2011-07-01

    Full Text Available 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 SMED method was used to optimize changeover time, and the OEE (Overall Equipment Effectiveness was applied to evaluate the level of resources usage before and after implementing changes. Further, the influence of the maintenance strategy of casting devices’ efficiency on own costs of casting manufac- ture was estimated.

  11. MODERN APPROACHES IN THE INDUSTRIAL MAINTENANCE MANAGEMENT - THE CONDITIONAL TYPE MAINTENANCE

    OpenAIRE

    IOAN CUCU; CIPRIAN IOAN CUCU; MARIA-ELENA BOATCĂ

    2010-01-01

    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 ...

  12. 14 CFR 171.115 - Maintenance and operations requirements.

    Science.gov (United States)

    2010-01-01

    ... Facility (SDF) § 171.115 Maintenance and operations requirements. (a) The owner of the facility shall... procedures and the use of specialized test equipment. (b) The SDF must be designed and maintained so that the... within the facility that may adversely affect SDF operations. (2) Maintenance and operations...

  13. Maintenance and Condition-Based Maintenance

    Institute of Scientific and Technical Information of China (English)

    DING Jin-hua; WANG Xue-Jun; ZHOU Rong; LIN Min; Olsson Erland

    2005-01-01

    The evolution of maintenance management is briefly introduced in this paper, from corrective maintenance to preventive maintenance. First, a range of condition monitoring and fault diagnosis techniques developed in different industries are surveyed; Second, many methods of condition monitoring are presented; Third, mathematical methods used in condition monitoring are given; Then the merits and shortcomings are discussed.Efficient maintenance policies are of fundamental importance in system engineering because of their fallbacks into the safety and economics of plant operation. Applying condition-based maintenance to a system can reduce the cost and extend the availability of facilities. With the advent of personal computers as fast and cost effective machines for data acquisition and processing of multiple signals some shortcomings mentioned in condition monitoring could be solved or reduced to some extent. These PCs can be a solution as a condition monitoring based maintenance system.

  14. Nuclear Power Plant Maintenance Optimization with Heuristic Algorithm

    OpenAIRE

    Andrija Volkanovski; Leon Cizelj

    2014-01-01

    The test and maintenance activities are conducted in the nuclear power plants in order to prevent or limit failures resulting from the ageing or deterioration. The components and systems are partially or fully unavailable during the maintenance activities. This is especially important for the safety systems and corresponding equipment because they are important contributors to the overall nuclear power plant safety. A novel method for optimization of the maintenance activities in the nuclear ...

  15. 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.

  16. 75 FR 81417 - Airworthiness Directives; Piper Aircraft, Inc. Model PA-28-161 Airplanes

    Science.gov (United States)

    2010-12-28

    ...-057-AD; Amendment 39-16543; AD 2010-26-04] RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc...): 2010-26-04 Piper Aircraft, Inc: Amendment 39-16543; Docket No. FAA- 2010-1006; Directorate Identifier... alternative GmbH Supplement replacement times may be Airplane approved for this part. Maintenance Manual...

  17. Development of Virtual Equipment for a Hydraulic Mechanics Experiment

    Institute of Scientific and Technical Information of China (English)

    CHAN Ying-Chieh; CHEN Ya-Hsin; KANG Shih-Chung; LEE Tim-Hau

    2008-01-01

    Laboratory class is very important in the education of hydraulic mechanics. However, it usually requires a high expenditure on equipment purchase and maintenance. Virtual equipment that renders the equipment in a virtual world and provides an interactive interface for users can be an ideal solution to reduce costs. In this research, we focus on developing virtual equipment for a Venturi tube experiment. We em-ployed multiple paper-prototypes to gather user feedback on the preliminary design. Following the final pro-totype, we then implemented the virtual equipment on computers. Interactive functions have been built into the virtual equipment. Users are able to manipulate the equipment and obtain real-time feedback as if they were using actual equipment. The results show that the development of the virtual equipment is technically feasible.

  18. Study on Military Equipment Support Modeling and Simulation%装备保障建模仿真研究

    Institute of Scientific and Technical Information of China (English)

    章文晋; 康锐; 郭霖翰; 李瑞莹

    2005-01-01

    In order to estimate the readiness, sustainability and support capability of the operational unit, an support simulation concept model of the military equipment is given as viewed from the system engineering modeling and simulation. Simulation test of military aircraft is analyzed in detail, it is composed of the operational mission, function maintenance process and resource modeling.%为了评价作战单元的战备完好性、持续作战能力和保障能力,根据系统工程的建模仿真思想提出了装备保障建模研究的仿真概念模型,并以军用飞机为例对装备保障仿真试验进行了分析,包括任务、功能、维修过程和资源利用建模过程等.

  19. Reference the YY/T 0841-2011 Standard to Improve Preventive Maintenance of Medical Electrical Equipment and Experience%参照YY/T 0841-2011标准改进医用电气设备预防性维护工作及体会

    Institute of Scientific and Technical Information of China (English)

    刘翔; 葛斌; 刘锦初

    2014-01-01

    In this paper, we interpret the new YY/T 0841-2011 standard and contrast the difference between it and GB9706.1-2007 standard. Then, we improved the current preventive maintenance work. After the improvement, we not only have more effective detection of the electrical safety performance of al kinds of medical electrical equipment, but also reduce the workload of clinical engineers, improve efficiency, and reduce the risk of electrical shock.%该文通过解读新实施的YY/T 0841-2011标准并对比其与GB 9706.1-2007标准的差异,然后对现行的预防性维护工作进行改进。改进后不仅能更有效的检测各类医用电气设备的电气安全性能,还能减少临床工程师的工作量,提高工作效率,并且能降低临床工程师遭受电击的风险。

  20. Logistics Equipment Maintenance Material Warehouse Location Planning Based on Particle Swarm Experiment Optimization Algorithm%基于粒子群实验寻优算法的后勤装备维修器材仓库布局选址

    Institute of Scientific and Technical Information of China (English)

    李文禄; 于战果; 匡小平; 邓威

    2014-01-01

    There existing several problems about logistics equipment maintenance material warehouse loca-tion,for instance,the warehouses are located at a broad area,the delivery time is long and the overall benefit is quite low.In order to settle these problems,this paper establishes a warehouse location model based on mixed integer programming,and designs an algorithm named Particle Swarm Experiment Opti-mization (PSEO)to solve this model.Taking SY theater for example,its warehouse location plan is ob-tained.Comparing the designed algorithm with the basic Particle Swarm Optimization (PSO),the new algorithm is proved to be effective.%针对我军后勤装备维修器材仓库分布点多面广、配送时效性不高、整体保障效益偏低等问题,建立了基于混合整数规划的仓库布局选址模型,设计了粒子群实验寻优算法进行求解。以 SY战区为例,验证了模型和算法的有效性,得到了该战区的后勤装备;维修器材仓库布局方案,并与基本粒子群算法进行了对比分析。

  1. 高职“数控设备故障诊断与维修”课程教学平台的构建%Research on Education Website for NC Equipments Fault Diagnosis and Maintenance Course in the Vocational College

    Institute of Scientific and Technical Information of China (English)

    李奇亮

    2011-01-01

    In general, vocational education' s training objects mainly have the characteristics of imagery thinking. Learning the same skills content can adopt multiple paths and create the most optimal combination of learning for each student, this paper builds a teaching platform for NC equipments fault diagnosis and maintenance course based on e - learning content structure, which highlights the characteristics of vocational education of operating process, so that it will be helpful to the reform of the skill - oriented teaching method.%职业教育的培养对象主要具有形象思维的特点。为使同一知识内容的学习可以通过多元路径进行,创造每位学生最优化的学习方式的组合,基于E-learn ing内容架构,构建了一个高职"数控设备故障诊断与维修"课程的教学平台,突出以工作过程化为导向的职业教育特色,以期对培养学生的职业技能有一些参考意义。

  2. Performance measures for world class maintenance

    Energy Technology Data Exchange (ETDEWEB)

    Labib, A.W. [Department of Mechanical Engineering, University of Manchester, Institute of Science and Technology, Manchester (United Kingdom)

    1998-12-31

    A main problem in maintenance in general, and in power plants and related equipment in particular, is the lack of a practical, consistent, and adaptive performance measure that provides a focused feedback and integrates preventive and corrective modes of maintenance. The presentation defines concepts of world class and benchmarking. Desirable features in an appropriate performance measure are identified. It then, demonstrates current practices in maintenance and criticises their shortcomings. An alternative model is presented through a case study. The model monitors performance from a general view, and then offers a focused analysis. The main conclusion is that the proposed model offers an adaptive and a dynamic framework, and hence production and maintenance are integrated in a `real time` environment. The system is also flexible in working with any other criteria whether they are of a quantitative or a qualitative nature. (orig.) 16 refs.

  3. 14 CFR 135.441 - Transfer of maintenance records.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Transfer of maintenance records. 135.441 Section 135.441 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION... REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT...

  4. 14 CFR 135.439 - Maintenance recording requirements.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Maintenance recording requirements. 135.439 Section 135.439 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION... REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT...

  5. 78 FR 41285 - Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

    Science.gov (United States)

    2013-07-10

    ..., Engine Controls, dated November 30, 2010, found in PILATUS PC-7 Turbo Trainer Aircraft Maintenance Manual... to the specified products. The NPRM was published in the Federal Register on April 26, 2013 (78 FR... participate in developing this AD. We received no comments on the NPRM (78 FR 24689, April 26, 2013) or on...

  6. Application of Analytic Redundancy-based Fault Diagnosis of Sensors to Onboard Maintenance System

    Institute of Scientific and Technical Information of China (English)

    CHI Chengzhi; ZHANG Weiguo; LIU Xiaoxiong

    2012-01-01

    Analytic redundancy-based fault diagnosis technique (ARFDT) is applied to onboard maintenance system (OMS).The principle of the proposed ARFDT scheme is to design a redundancy configuration using ARFDT to enhance the functions of redundancy management and built in test equipment (BITE) monitor.Redundancy configuration for dual-redundancy and analytic redundancy is proposed,in which,the fault diagnosis includes detection and isolation.In order to keep the balance between rapid diagnosis and binary hypothesis,a filter together with an elapsed time limit is designed for sequential probability ratio test (SPRT) in the process of isolation.Diagnosis results would be submitted to central maintenance computer (CMC) together with BITE information.Moreover,by adopting reconstruction,the designed method not only provides analytic redundancy to help redundancy management,but also compensates the output when both of the sensors of the same type are faulty.Our scheme is applied to an aircraft's sensors in a simulation experiment,and the results show that the proposed filter SPRT (FSPRT) saves at least 50% of isolation time than Wald SPRT (WSPRT).Also,effectiveness,practicability and rapidity of the proposed scheme can be successfully achieved in OMS.

  7. Logistics Operations Management Center: Maintenance Support Baseline (LOMC-MSB)

    Science.gov (United States)

    Kurrus, R.; Stump, F.

    1995-01-01

    The Logistics Operations Management Center Maintenance Support Baseline is defined. A historical record of systems, applied to and deleted from, designs in support of future management and/or technical analysis is provided. All Flight elements, Ground Support Equipment, Facility Systems and Equipment and Test Support Equipment for which LOMC has responsibilities at Kennedy Space Center and other locations are listed. International Space Station Alpha Program documentation is supplemented. The responsibility of the Space Station Launch Site Support Office is established.

  8. Aircraft Noise Prediction

    OpenAIRE

    2014-01-01

    This contribution addresses the state-of-the-art in the field of aircraft noise prediction, simulation and minimisation. The point of view taken in this context is that of comprehensive models that couple the various aircraft systems with the acoustic sources, the propagation and the flight trajectories. After an exhaustive review of the present predictive technologies in the relevant fields (airframe, propulsion, propagation, aircraft operations, trajectory optimisation), the paper add...

  9. 49 CFR 175.8 - Exceptions for operator equipment and items of replacement.

    Science.gov (United States)

    2010-10-01

    ... HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS... items of replacement. (a) Operator equipment. This subchapter does not apply to— (1) Aviation fuel and...) Hazardous materials required aboard an aircraft in accordance with the applicable airworthiness...

  10. Rural road maintenance management

    OpenAIRE

    Johannessen, B.

    1999-01-01

    This manual summarizes relevant Cambodian government policies regarding rural road maintenance. Chapter 2 defines the various components of road maintenance and describes an effective strategy and organization which addresses the maintenance requirements of rural roads in Cambodia. Chapter 3 is a brief description of the planning, implementation and reporting cycle required in an effective road maintenance management system. Chapter 4 summarizes the contracts management procedures, and finall...

  11. Space Systems Equipment Maintenance Career Ladder AFSC-309X0.

    Science.gov (United States)

    1986-09-01

    26 ELECTRONICS PRINCIPLES INVENTORY (EPI) .... ............... .... 31 JOB SATISFACTION ANALYSIS ........... ........... . . . . 32...the-job training) are ade- quately meeting the needs of the career ladder. ELECTRONICS PRINCIPLES INVENTORY (EPI) - An additional source of information...for AFSC 309X0 training developers is the EPI. The EPI is a 1,366 item, knowledge-based inventory which identifies the range of electronics principles personnel

  12. Equipment Maintenance: Interservice of Technical Manuals and Related Technology

    Science.gov (United States)

    2007-11-02

    TX 78241-5990 (d) Sacramento ALC/MMEDT McClellan AFB CA 95652-5990 (e) Warner Robins ALC/MMEDT Robins AFB GA 31098-5990 Appendix B Attachment 2 Section...the chairperson, Interservice Group on the Exchange of Technical Manual Technology, HQ AFLC/MMERD, Wright-Patter- son AFB OH 45433-5001. b. Joint...MMEDU, Tinker AFB OK 73145- 5979, except when the requesting activity has an assigned Technical Order Distribution Office (TODO) Code (Account). b

  13. A multi-criteria model for maintenance job scheduling

    Directory of Open Access Journals (Sweden)

    Sunday A. Oke

    2007-12-01

    Full Text Available This paper presents a multi-criteria maintenance job scheduling model, which is formulated using a weighted multi-criteria integer linear programming maintenance scheduling framework. Three criteria, which have direct relationship with the primary objectives of a typical production setting, were used. These criteria are namely minimization of equipment idle time, manpower idle time and lateness of job with unit parity. The mathematical model constrained by available equipment, manpower and job available time within planning horizon was tested with a 10-job, 8-hour time horizon problem with declared equipment and manpower available as against the required. The results, analysis and illustrations justify multi-criteria consideration. Thus, maintenance managers are equipped with a tool for adequate decision making that guides against error in the accumulated data which may lead to wrong decision making. The idea presented is new since it provides an approach that has not been documented previously in the literature.

  14. Maintenance Work, Maintenance Skills: The Case of a Major Water Company in the UK.

    Science.gov (United States)

    Cooke, Fang Lee

    2002-01-01

    A case study of a British water company found that technological change had only a moderate impact on technical skills but increased the need for diagnostic and information technology skills for the maintenance of electronic equipment. Organizational restructuring increased requirements for functional flexibility and interpersonal skills.…

  15. View of QF-106 aircraft cockpit

    Science.gov (United States)

    1997-01-01

    View of the cockpit and instrument panel of the QF-106 airplane used in the Eclipse project. In 1997 and 1998, the Dryden Flight Research Center at Edwards, California, supported and hosted a Kelly Space & Technology, Inc. project called Eclipse, which sought to demonstrate the feasibility of a reusable tow-launch vehicle concept. The project goal was to successfully tow, inflight, a modified QF-106 delta-wing aircraft with an Air Force C-141A transport aircraft. This would demonstrate the possibility of towing and launching an actual launch vehicle from behind a tow plane. Dryden was the responsible test organization and had flight safety responsibility for the Eclipse project. Dryden provided engineering, instrumentation, simulation, modification, maintenance, range support, and research pilots for the test program. The Air Force Flight Test Center (AFFTC), Edwards, California, supplied the C-141A transport aircraft and crew and configured the aircraft as needed for the tests. The AFFTC also provided the concept and detail design and analysis as well as hardware for the tow system and QF-106 modifications. Dryden performed the modifications to convert the QF-106 drone into the piloted EXD-01 (Eclipse eXperimental Demonstrator-01) experimental aircraft. Kelly Space & Technology hoped to use the results gleaned from the tow test in developing a series of low-cost, reusable launch vehicles. These tests demonstrated the validity of towing a delta-wing aircraft having high wing loading, validated the tow simulation model, and demonstrated various operational procedures, such as ground processing of in-flight maneuvers and emergency abort scenarios.

  16. Human Body Size in Military Aircraft and Personal Equipment

    Science.gov (United States)

    1946-06-01

    rest upon the seat level at a greater angle, which will permit a vector of weight forces to result on a very small area of the gluteal muscles lying...190. tests could only supplement information obtained with infinitely less pains from other sourcet, And finally, basic turret arrangements (such as

  17. Computer Program for Vibration Prediction of Fighter Aircraft Equipments

    Science.gov (United States)

    1977-11-01

    SIG’(,3)=l.0 !K=7 SD0(4)=-iG0.0 VIPRF 1675 VIPRF 16756" VIPRF 1676 J=n TCC "ST=C.IC $II=1 TL=O VIPRF 177 FR’=FWTlrF C? X=YLPL L Ln VIPRF 1678 VIPRF 1679...HTLO(ITYDE) +SIC,N(ITYPE) * VIPRF 21L.2 IATAh? (TWflrI2TYPF)’(X1i’!ALDHA(ITYP:)) ,1.-X1*X1))/LXIT7yPE) ) VIPRF 21’.3 OEr ,PFL(J=X VIPRF 2q4.4 VIPPF 2SA

  18. Final Environmental Assessment for Aircraft Maintenance Operations Center

    Science.gov (United States)

    2014-06-01

    Flyway of North America . The flyway generally follows the Mississippi River. Migratory species typically use this flyway to travel from wintering...AFB INRMP. Reptiles and Amphibians As reported in the 2005 INRMP, common herpetofauna species observed on Columbus AFB include the Cottonmouth

  19. Methods and tools in development in the field of maintenance; Methodes et outils pour la maintenance en cours de developpement

    Energy Technology Data Exchange (ETDEWEB)

    Le Reverend, D.; Tortolano, M. [Electricite de France (EDF/RD), 78 - Chatou (France); Leniaud, F. [Electricite de France (EDF), Div. Production Nuleaire, 93 - Saint-Denis (France)

    2004-07-01

    This article is dedicated to the maintenance strategy followed by EDF for its nuclear power plants. This strategy is based on the American method RCM (reliability centered method) that has been extended to passive components such as structures and relies on 4 axis. The first axis can be defined as the optimization of maintenance with regard to safety, outage and costs. The aim is to set the border between preventive maintenance and remedial maintenance. The second axis is the condition based maintenance that is the maintenance action that is triggered by the real state of the equipment. This type of maintenance implies the search for reliable and accurate diagnostics. The third axis is the design of simulation and planning tools required for the management of the moving of tools, machinery and spare-parts on a maintenance work site. The fourth axis is the design of tools able to repair some important equipment, this way may be a valid alternative to the replacement of equipment in terms of cost and outage time. (A.C.)

  20. Knowledge based maintenance

    Energy Technology Data Exchange (ETDEWEB)

    Sturm, A. [Hamburgische Electacitaets-Werke AG Hamburg (Germany)

    1997-12-31

    The establishment of maintenance strategies is of crucial significance for the reliability of a plant and the economic efficiency of maintenance measures. Knowledge about the condition of components and plants from the technical and business management point of view therefore becomes one of the fundamental questions and the key to efficient management and maintenance. A new way to determine the maintenance strategy can be called: Knowledge Based Maintenance. A simple method for determining strategies while taking the technical condition of the components of the production process into account to the greatest possible degree which can be shown. A software with an algorithm for Knowledge Based Maintenance leads the user during complex work to the determination of maintenance strategies for this complex plant components. (orig.)