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Reliability and Maintainability Symposium, 1995. Proceedings., Annual

Date 16-19 Jan. 1995

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Displaying Results 1 - 25 of 84
  • Annual Reliability and Maintainability Symposium 1995 Proceedings

    Publication Year: 1995
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    Freely Available from IEEE
  • The P.K. McElroy Award for Best Paper

    Publication Year: 1995
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    Freely Available from IEEE
  • Author index

    Publication Year: 1995
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    Freely Available from IEEE
  • Cumulatlive Indexes

    Publication Year: 1995
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    Freely Available from IEEE
  • Combining single-event latchup and reliability requirements for space vehicles

    Publication Year: 1995, Page(s):445 - 449
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    In this paper, the authors suggest the consideration of destructive single-event latchup (SEL) as an additional failure mode for components in space systems. With this orientation, the failure rate for this process can be combined with the standard failure analysis to obtain a composite failure rate prediction. This paper shows how SEL can be included in the standard reliability formalism and how ... View full abstract»

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  • Operational availability modeling for risk and impact analysis

    Publication Year: 1995, Page(s):391 - 396
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    Availability is a system performance parameter which provides insight into the probability that an item or system will be available to be committed to a specified requirement. Depending on the application, availability can be defined to include reliability, maintainability and logistic support information. For fleet management purposes, the ability to quantify availability in terms of all of its c... View full abstract»

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  • Mass-transit system service quality: tradeoff analysis on reliability, maintainability and logistics

    Publication Year: 1995, Page(s):515 - 528
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (828 KB)

    Service quality is influenced not only by intrinsic reliability and maintainability but also by logistical factors such as: the number of operations reserves of spare trains; the number of repair facilities; fleet size; average recovery times after perturbations; and spare parts. Operators are looking for service quality commitments from manufacturers. However, only intrinsic reliability and maint... View full abstract»

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  • AMSAA maturity projection model

    Publication Year: 1995, Page(s):174 - 181
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    The AMSAA parametric empirical Bayes (PEB) projection model allows the utilization of data generated over a test period [0,T] that may include several system configurations to obtain projections of future system reliability. In this paper, the authors present a PEB reliability projection method. In general, the term “projection” refers to a reliability assessment that uses a combinatio... View full abstract»

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  • Innovations in military spares analysis

    Publication Year: 1995, Page(s):397 - 401
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    The US Defense Secretary hopes to reap savings in the order of $30 billion with procurement reform. He admits that one of his toughest challenges will be to nurture and sustain America's technological edge, which he sees as a necessity in a period of declining force levels, during a time of declining budgets. With these thoughts in mind Science Applications International Corporation (SAIC) took th... View full abstract»

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  • Dependent-failures in spacecraft: root causes, coupling factors, defenses, and design implications

    Publication Year: 1995, Page(s):337 - 342
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    This paper provides: (1) the results of dependent failure analysis of Space Shuttle Orbiter in-flight anomaly (IFA) data; (2) revised and new classification systems for root causes, coupling factors, and defenses; (3) dependent failure design guidelines for the analysis of existing spacecraft systems and the design of new ones; (4) insights from the study; and (5) parameters for use in common caus... View full abstract»

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  • A graphical model-based reliability estimation tool and failure mode and effects simulator

    Publication Year: 1995, Page(s):74 - 81
    Cited by:  Papers (3)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    A new graphical reliability estimation tool, Reliability Performance Module (RPM), is described. RPM combines the features of a powerful reliability tool, Reliability Estimation System Testbed (REST), developed at NASA Langley, with the convenient graphical modelling and simulation capabilities of an off-the-shelf commercial software package, Block Oriented Network Simulator (BONeS), from the Alta... View full abstract»

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  • Time-dependent logic for goal-oriented dynamic-system analysis

    Publication Year: 1995, Page(s):265 - 270
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    The problem to be addressed in this paper is the need for adequate methodologies to use in analyzing systems which are inherently dynamic and require analysis that is explicitly time dependent. This paper highlights an error that can arise in analyzing accident scenarios when time dependence is ignored. A simple straight-forward solution is provided without the necessity of utilizing more powerful... View full abstract»

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  • Equipment life: can we afford to extend it?

    Publication Year: 1995, Page(s):529 - 535
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    Almost without exception, military equipments remain in service beyond their original planned lives. This paper shows how the ability to extend life is greatly influenced by early project decisions. It describes how the identification and management of life-related risks provides a realistic framework on which to plan an equipment's future. It demonstrates how different procurement strategies deli... View full abstract»

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  • A modified bathtub curve with latent failures

    Publication Year: 1995, Page(s):217 - 222
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    Burn-in and stress screening are becoming increasingly popular in the commercial electronics industry as customers become increasingly sensitive to failures occurring in the useful life of a product or system. For example, thermal stress screening (TSS) is an assembly-level electronics manufacturing process that evolved from the burn-in processes used in NASA and DoD programs. While burn-in subjec... View full abstract»

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  • Pacemaker reliability: design to explant

    Publication Year: 1995, Page(s):460 - 464
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    Pacemaker reliability can be thought of as a measure of the change in quality during lifetime or mean time to replace (MTTR). Quality has been defined as the totality of all the features designed and built into a pacemaker, or any product. If these features are to function as intended for the designed MTTR, a formal quality system which covers design, qualification manufacturing, distribution and ... View full abstract»

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  • Combinatorial-models and coverage: a binary decision diagram (BDD) approach

    Publication Year: 1995, Page(s):82 - 89
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (756 KB)

    This paper presents the DREDD (Dependability and Risk Analysis using Decision Diagrams) algorithm which incorporates coverage modeling into a BDD solution of a combinatorial model. The DREDD algorithm takes advantage of the efficiency of the BDD solution approach and the increased accuracy afforded by coverage modeling. BDDs have been used to find exact solutions for extremely large systems, inclu... View full abstract»

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  • Using R&M analysis to calculate economic risk in the process industries

    Publication Year: 1995, Page(s):356 - 361
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    A systematic procedure for quantifying the financial risk of repetitive hardware failures is used to analyze the reliability of plant electrical systems and process units. The procedure uses component failure rates and the financial impact to calculate annual risk premiums, which approximate the insurance premiums required to compensate for financial losses caused by the component failures. Basic ... View full abstract»

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  • Reliability program for neonatal intensive care equipment

    Publication Year: 1995, Page(s):457 - 459
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    The reliability of infant care products requites a comprehensive, detailed approach to product development and reliability assessment. This paper presents a reliability program for infant care products, and is designed to meet the rigorous demands of patient care, FDA and ISO 9001 quality systems View full abstract»

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  • Using complexity-tracking in software development

    Publication Year: 1995, Page(s):433 - 438
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    CATS (Complexity Analysis and Tracking System) is a complexity-tracking system which uses the McCabe complexity analysis tool to construct and maintain an ongoing database of structural complexity values for a software system as it proceeds through its development and testing. Building on previous work which indicated a correlation between structural complexity and defect corrections, CATS allows ... View full abstract»

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  • The ESS riddle: physics vs. relics

    Publication Year: 1995, Page(s):233 - 241
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (856 KB)

    This paper examines the history and evolution of environmental stress screening (ESS) to show how uncoordinated initiatives from each military service contributed to the current state of array in the ESS community. The lack of a common vision for ESS is examined as a continuing handicap in efforts to integrate ESS more fully into the hardware development process. Common areas of confusion regardin... View full abstract»

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  • Exploratory research on nonthermal damage to electronics from fires and fire-suppression agents

    Publication Year: 1995, Page(s):1 - 6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    Electronic equipment is expected to operate reliably under normal conditions as well as under foreseeable abnormal conditions, particularly in life-critical and environmentally sensitive applications. One foreseeable abnormal condition to which electronic equipment may be subjected at least once during its life-cycle is a fire environment. Such an environment may include the thermal and corrosive ... View full abstract»

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  • Nickel dendrites: a new failure mechanism in ceramic hermetic packages

    Publication Year: 1995, Page(s):39 - 43
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (908 KB)

    A new failure mechanism, nickel dendrites, was identified in hermetic ceramic packages. Nickel dendrites resulted from an unauthorized change in the supplier's assembly process. The change caused lots to be produced with package ambient moisture levels ranging from 10% by volume to 20% by volume. Device cooling in the system application reduced the package temperature below the dew point of the in... View full abstract»

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  • Understanding and solving the real reliability assurance problems

    Publication Year: 1995, Page(s):159 - 161
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    To be competitive, manufacturers need to know how things fail, as well as how things work. The combination of physics-of-failure and best practices is an approach to the development of cost-effective reliable products that focuses on how things can fail through an understanding of the root causes of failure. The goal is to answer the following questions: (1) how can the supplier measure how well h... View full abstract»

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  • An efficient decomposition technique for Markov-chain analysis

    Publication Year: 1995, Page(s):465 - 471
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    A current trend in system design is to emphasize integration of various functionalities. This results in a complex environment to be handled by a fault tolerant system. The fault tolerance in the system is achieved by means of redundancy in the components, built in fault diagnosis, and sophisticated recovery/reconfiguration techniques. Reliability analysis of such systems is usually done using a M... View full abstract»

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  • Combining computational-simulations with probabilistic-risk-assessment techniques to analyze launch vehicles

    Publication Year: 1995, Page(s):343 - 348
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    To assess the overall cost of a launch system the potential losses which may be incurred due to catastrophic failure should also be considered along with the manufacturing and operational costs. The potential for catastrophic failure may be determined by performing a probabilistic risk assessment. Launch vehicles operate under highly transient conditions. In addition, the complex nature of launch ... View full abstract»

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