1988. Proceedings., Annual Reliability and Maintainability Symposium,

26-28 Jan. 1988

Filter Results

Displaying Results 1 - 25 of 81
  • Annual Reliability and Maintainability Symposium. 1988 Proceedings (Cat. No.88CH2551-0)

    Publication Year: 1988
    Request permission for commercial reuse | PDF file iconPDF (26 KB)
    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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • R&M design influence from spreadsheet analysis

    Publication Year: 1988, Page(s):336 - 339
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The authors describe a computer-aided analysis method using commercially available software to provide quick estimates needed to support reliability and maintainability (R&M) decisions during the early stages of a development program. The method is equally applicable to both military and commercial contracts. The method utilizes fragmentary existing data supplemented by flexible estimating fac... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Canadian armed forces approach to an improved readiness posture

    Publication Year: 1988, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    The author asserts that because of the current problems of technological change, of increasing complexity of weapons, of tighter integration demands among the Prime Fighting Vehicle (PFV), its support systems and the defense industrial base that underpins these system elements, of rapidly escalating acquisition and in-service support costs and of the prospect of zero-growth, if not actually declin... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Measuring software for its reuse potential

    Publication Year: 1988, Page(s):202 - 207
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    The author examines a variety of software reusability measurement techniques and shows why the physical properties of software are important for determining reuse potential, and provides design guidelines for the structuring and analysis of software to enhance its reusability. A framework is given to evaluate the potential of software to be reused. A hierarchy for the analysis of software designs ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Improved `dynamic random access memory' prediction improves design decisions

    Publication Year: 1988, Page(s):364 - 372
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    A method of reliability prediction is discussed that provides a means to quantify design tradeoffs for memory systems comprised of dynamic random-access memories (DRAMs). This method, the NEW-NEW method, builds on earlier work that has predicted the reliability of narrow, specific classes of memory systems, such as systems without error detection and correction. The NEW-NEW approach provides memor... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Collection of maintenance data: impact of PORTER on R&M

    Publication Year: 1988, Page(s):267 - 271
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    The development, implementation, and impact of a microcomputer-based history tracking system PORTER (for performance-oriented tracking of equipment repair) is reported. The system is for use by radar maintenance technicians in an operational environment at Bitburg Air Base, Federal Republic of Germany. The prototype system collects pertinent radar and other F-15 system information such as date, so... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Aramid liners as armor augmentation

    Publication Year: 1988, Page(s):68 - 74
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    Improvements in delivery accuracy of large-caliber munitions have increased their threat to fleets of light armored vehicles and equipment shelters. It is suggested that the ballistic protection of such vehicles can be augmented by the use of aramid liners (or some combination of liners and applique armor) made of a combination of ceramics and aramid fabrics. Spaced aramid liners are thought to be... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • COFT program-a tailored R&M approach

    Publication Year: 1988, Page(s):147 - 150
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    The authors present a case study in the successes to be derived from placing emphasis on basic reliability and maintainability (R&M) tasks that are exemplified by the US Army acquisition of the Conduct of Fire Trainer (COFT). Topics covered include the R&M requirements for the simulator, design simplification, the parts control program, reliability demonstration and acceptance tests, and f... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Automated fault injection for digital systems

    Publication Year: 1988, Page(s):112 - 117
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    An automated fault injection system developed for an air-traffic-control system processor is reported. Its development from initial conception through the design tradeoffs to its final implementation is described. It is shown how the system was used on the target processor, and the impact it had on the built-in testing and fault-isolation-testing (BIT/FIT) facilities View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Issues affecting the reliability of software-cost estimates (trying to make chicken salad out of chicken feathers)

    Publication Year: 1988, Page(s):195 - 201
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    The author discusses a wide range of dynamic factors (many of which are managerial, subjective, and/or nonquantifiable) present in the software development environment that severely inhibit the generation of reliable cost estimates. The wide-ranging results of a comparison of several cost models applied to a hypothetical system are presented to illustrate the basis for low confidence levels in sof... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Parts renewal in continuous-time Monte Carlo reliability simulation

    Publication Year: 1988, Page(s):345 - 349
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    The simulation of complex multicomponent systems by Markov Monte Carlo methods has, to date, been limited to systems where system performance can be modeled by a time-inhomogeneous Markov process. This model is capable of including component dependencies as well as wear phenomenon represented by time-dependent failure rates. A discussion is presented of the formulation and implementation of a gene... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability and quality data in court

    Publication Year: 1988, Page(s):234 - 237
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    The author presents the types of quality assurance data and information that are frequently used in the courtroom for litigation involving contract disagreements between buyer and seller (as well as personal injuries of the user or bystander versus all of the sellers and manufacturers) or arguments between the manufacturer of an item and a subsequent manufacturer who incorporates the item, over th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Simplified Weibull modeling of component early life reliability

    Publication Year: 1988, Page(s):379 - 382
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    The need for a comprehensively nearly-life reliability monitor of electronic components is pointed out by the authors. Operational life testing was used to produce an early-life performance evaluation by exposing large samples of devices to simulated conditions of actual field use at the component manufacturing location. This testing produces failure time which are analyzed and associated with a s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Off the bathtub onto the roller-coaster curve [electronic equipment failure]

    Publication Year: 1988, Page(s):356 - 363
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    In 1981 it was revealed that the instantaneous failure rate of a piece of electronic equipment decreases with age during its useful life and that the bathtub characteristic for hazard rate is an exception rather than the rule. The shape of the hazard rate curve for this device is studied by the authors. Investigators studying semiconducting device burn-in subscribe to the concept of freak failures... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A system-level reliability-growth model

    Publication Year: 1988, Page(s):243 - 247
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    Using a subsystem growth model developed by the authors together with the concepts associated with the composition of moments, the problem of system-level growth analysis is considered. It is shown, using the moments of the subsystem failure rate distributions as they change during test, how the moments of the distribution of the system level failure rate can be estimated. Then, using these moment... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.