1988. Proceedings., Annual Reliability and Maintainability Symposium,

26-28 Jan. 1988

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  • Annual Reliability and Maintainability Symposium. 1988 Proceedings (Cat. No.88CH2551-0)

    Publication Year: 1988
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    Freely Available from IEEE
  • Product assurance of PATRIOT air defense system

    Publication Year: 1988, Page(s):154 - 160
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (505 KB)

    PATRIOT is a highly sophisticated air-defense guided-missile system designed to be effective against aircraft representing the field army defense threat of the 1980s and 1990s. An overview is given of this comprehensive system which satisfies reliability, availability, and maintainability (RAM) analysis requirements and which now functions to monitor system performance and support related product ... View full abstract»

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  • Automated fault tree analysis via AI/ES

    Publication Year: 1988, Page(s):331 - 335
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    A description is given of FTA, an interactive fault tree analysis tool that integrates the creation of fault trees with the propagation of failure rates. This tool allows the engineer to create, modify and manipulate fault trees easily, and requires little instruction on how to use the software. The fault trees generated are directly used in the propagation of failure rates without having to exit ... View full abstract»

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  • Estimating integrated-circuit failure rates from field performance

    Publication Year: 1988, Page(s):327 - 330
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    Estimating the reliability of components in manufactured equipment has been hampered by the impracticability of experiments which collect failure data by tracking thousands of devices for years and by the unavailability of statistical software. Procedures used to extract 10 11 unaccelerated device hours of component field replacement data are described, along with statistical techniques... View full abstract»

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  • Eliminating `can not duplicate' and `excessive trouble-shooting' diagnostic actions

    Publication Year: 1988, Page(s):323 - 326
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    The application of a reliability and maintenance (R&M) figure of merit is reported. The figure of merit is known as the expended maintenance importance ratio (EMIR). It relates reliability and maintainability in a single value. It is shown how to use the EMIR in predicting R&M costs and how, with data reduction techniques, to identify specific improvements. Examples developed from historic... View full abstract»

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  • Supportability evaluation prediction process

    Publication Year: 1988, Page(s):102 - 107
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    Methodology has been developed that allows identification of supportability design criteria and quantification of total field logistics support requirements. Interface with design engineers via computer-aided design (CAD) workstations is describe. Specific development efforts include: a maintenance discrepancy database that is used to provide cause and effect relationships; impact of associated ma... View full abstract»

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  • The Tomahawk consolidated database

    Publication Year: 1988, Page(s):319 - 322
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    A consolidated database was developed for the Tomahawk cruise missiles project to store and automatically retrieve data from numerous production contractors, field activities, and repair facilities. A case study dealing with the design and implementation of the consolidated database is reported. Over 30 tracked components of each Tomahawk missile are followed through production, deployment, depot ... View full abstract»

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  • Analysis of repair data

    Publication Year: 1988, Page(s):231 - 233
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (188 KB)

    A simple, informative plot of data on numbers and costs of repairs on a sample of systems is presented. The plot provides a nonparametric estimate of the mean cumulative (1) cost or (2) number of repairs per system versus system age. The plot is used to: (1) evaluate whether a cost (or repair) rate increases or decreases with age, which helps one decide on system retirement and burn-in; (2) compar... View full abstract»

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  • The United States Air Force R&M 2000 process

    Publication Year: 1988, Page(s):93 - 101
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (980 KB)

    An attempt is made to show how to increase combat capability while saving resources through good reliability and maintainability (R&M) practices. Based on industrial and US Department of Defense successes, the Office of the Special Assistant for Reliability and Maintainability has isolated those practices which significantly enhance meeting the goals of the US Air Force (USAF) R&M 2000 ini... View full abstract»

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  • Contractor flight testing of cluster munitions

    Publication Year: 1988, Page(s):314 - 318
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    Contractor management and performance of air-dispensed munition tests is considered. The authors examine issues associated with scoring for reliability performance assessment, explosive ordnance disposal, identification and resolution of safety issues, coordination of high-explosive cluster munition air drops with subcontractor and Government agencies, establishment of pass/fail criteria, and fail... View full abstract»

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  • Field operational R&M warranty

    Publication Year: 1988, Page(s):227 - 230
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    Reference is made to the need for some warranty to be provided by the contractor on equipment supplied to the government which has received considerable attention in defense system's acquisitions. Experience in the evolvement of the formulation and application of a simple field operational reliability and maintainability (R&M) warranty for airborne communication equipment is reviewed, particul... View full abstract»

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  • METS meets the F-15E supportability challenge

    Publication Year: 1988, Page(s):280 - 282
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    The Mobile Electronic Test Set (METS) F-15 avionics intermediate shop (AIS) automatic test equipment (ATE) is described. METS takes advantage of the stimuli/measurement capability for a printed circuit board available for portable testers. Because METS uses six parallel high-speed microprocessors and distributed processing techniques, it provides a real-time multitasking test environment. The exte... View full abstract»

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  • R&M 2000 action-Plan for tactical missiles

    Publication Year: 1988, Page(s):86 - 92
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    The US Air Force has asked industry assistance in developing R&M 2000 action plans in support of their R&M 2000 initiative. This initiative is aimed at achieving increased combat capability through emphasis on improving reliability and maintainability (R&M). The philosophy and framework for the action plan developed by Hughes Missile Systems Group is discussed. The plan has three basic... View full abstract»

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  • A simulation program to model effects of logistics on R&M of complex systems

    Publication Year: 1988, Page(s):306 - 313
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    A simulation program (SIMULAV) is presented that is capable of modeling large-scale reliability systems. The program can model the effect of such logistics characteristics as inventory, transportation, and facilities on the reliability and availability of the system. The program is written in Pascal and it consists of three main elements: a process-oriented simulation language, a minimal cut-sets ... View full abstract»

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  • R&M engineering for off-the-shelf critical software

    Publication Year: 1988, Page(s):218 - 226
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (880 KB)

    The authors present some preliminary guidelines for evaluation of reliability and maintainability (R&M) and certification of off-the-shelf software components. These guidelines are established as engineering criteria which must be achieved in each software component which is selected for reuse View full abstract»

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  • R&M quality team concept: a new R&M 2000 initiative

    Publication Year: 1988, Page(s):277 - 279
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    The Aeronautical Systems Division's C-17 System Program Office has introduced a project management initiative designed to improve the effectiveness of a company's design organization, and to recognize and manage the reliability and maintainability (R&M) program in day-to-day design activities. The initiative, which is called the R&M Quality Team Concept, uses R&M quality teams and a re... View full abstract»

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  • System effectiveness-a key to assurance [communication satellites]

    Publication Year: 1988, Page(s):77 - 85
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    The increasing demands for long life and reliability performance in space for communication satellites has focused increased attention on those critical parts. (Materials, processes, subassemblies, assemblies, and products) whose individual performance is essential to the success of the mission. Various case histories, problems, concerns, and uncertainties that arose during the design, manufacture... View full abstract»

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  • CAD techniques for improved maintainability design

    Publication Year: 1988, Page(s):122 - 126
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A method is described which the maintainability engineer can utilize computer-aided design (CAD) techniques to improve the timeliness of impacting system design. Design data can be captured as they are generated by design engineering, enabling the maintainability engineer to perform analyses early in the system design and satisfy contractual maintainability and testability requirements. Techniques... View full abstract»

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  • Reliability impacts of multiple-bit-per-chip RAMs

    Publication Year: 1988, Page(s):302 - 305
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    The author considers the need to use error-correcting codes which have the same efficiency of the traditional single-bit-error-correcting and double-bit-error-detecting (SBEC-DBED) codes but which can be used with the current multiple-bit-per-chip organizations. A short summary is presented of memory chip and memory card configurations along with common chip failure modes and how SBEC-DBED and DBE... View full abstract»

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  • Software system safety and reliability

    Publication Year: 1988, Page(s):214 - 217
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    The emerging discipline of software system safety is considered. The issues discussed are: methodology, application criteria, and phasing of activities during each phase of system design. The authors show how a systems approach to software safety and reliability enhances program effectiveness and reduces costs View full abstract»

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  • Failure prediction by marginal checking

    Publication Year: 1988, Page(s):272 - 276
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    As part of a study to determine the feasibility of operationally detecting incipient avionic system/subsystem failures and predicting actual failures, the concept of marginal checking was developed. Incipient-failure detection and failure prediction is termed marginal checking. Marginal checking is characterized as an evaluation of system/subsystem health by analysis of changes in observable mecha... View full abstract»

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  • Interconnection wiring systems for military vehicles

    Publication Year: 1988, Page(s):75 - 76
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (80 KB)

    It is argue that the performance of an interconnection system used has an ever-increasing effect on the reliability of total weapons systems. Therefore, interconnection systems should be developed and qualified as a system operating in a specified environment. System requirements should include, but not be limited to: operating temperature range, expected life, fluid tolerance, mechanical toughnes... View full abstract»

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  • Relevancy in fault detection analysis

    Publication Year: 1988, Page(s):118 - 121
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    The author discusses the concept of relevancy of circuits, parts, and part failure to system performance and the impact of relevancy to fault detection analysis results. Relevancy requires that all circuits, parts, and part failure modes in a system be analyzed to determine if, in the event of an equipment malfunction, there is an adverse effect on system performance. Thus, a circuit failure criti... View full abstract»

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  • MIL-STD-781C fixed time test: effect of redundancy

    Publication Year: 1988, Page(s):297 - 301
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    When a fixed-time test is used to demonstrate the mean time between failures (MTBF) of a system containing redundancy, the α and β risks vary as a function of MTBF and also as a function of the percentage of redundancy within the system and the number of systems being tested. An algorithm is presented for calculating the probability of zero to five system failures during a fixed-time re... View full abstract»

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  • Automated generation of reliability models

    Publication Year: 1988, Page(s):17 - 22
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (540 KB)

    The abstract semi-Markov specification interface to the SURE (Semi-Markov Range Evaluator) tool (ASSIST) program allows the user to describe a Markov model in a high-level language. Instead of listing the individual states of the model, the user specifies rules governing the behavior of the system, which are used to automatically generate the model. A small number of statements in the abstract lan... View full abstract»

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