By Topic

Annual Reliability and Maintainability Symposium 1992 Proceedings

21-23 Jan. 1992

Filter Results

Displaying Results 1 - 25 of 81
  • Annual Reliability and Maintainability Symposium. 1992 Proceedings (Cat. No.92CH3108-8)

    Publication Year: 1992
    Request permission for commercial reuse | PDF file iconPDF (8 KB)
    Freely Available from IEEE
  • A software-reliability assessment model

    Publication Year: 1992, Page(s):294 - 298
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    The author presents an original approach to software prediction based on previous studies conducted under Rome Laboratories' (formerly RADC) contracts. In the model presented, tradeoff analysis is performed on the software architecture, taking into account the future operational use of the software studied. The organization and the amount of effort spent on the development are also discussed. The ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability techniques for combined hardware/software systems

    Publication Year: 1992, Page(s):290 - 293
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    A study was conducted to develop practical techniques for reliability modeling, allocation, prediction, growth testing, and demonstration testing of systems that contain both hardware and software elements. A large part of the research addressed the use of software product/process metrics to predict software reliability. The study culminated in the preparation of a draft MIL-HDBK on hardware/softw... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Historical efforts on R&M integration into engineering curricula

    Publication Year: 1992, Page(s):131 - 133
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    The author describes what the US Air Force has done to achieve improved R&M (reliability and maintainability). The Air Force has been vitally interested in all graduate engineers becoming knowledgeable of R&M so they will be able to readily include R&M in their designs. It is pointed out that R&M must be designed into new systems as they evolve through the complete design process, ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Software-reliability feedback: a physics-of-failure approach

    Publication Year: 1992, Page(s):285 - 289
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    The authors advocate a physics of failure approach to the understanding and improvement of the software development process. A physics of failure analysis is a detailed examination of all information available about a software problem to determine why the problem was introduced into the software in the first place, and when and how the problem was discovered. The results of the analysis are used t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Submarine pipeline automatic-repair system-an approach to the mission-availability assessment

    Publication Year: 1992, Page(s):126 - 130
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    The authors present the methodology followed to evaluate the mission availability of a remotely controlled submarine system designed to repair damaged pipelines in deep waters. The goal of the analysis has been to identify the technical and operational solutions with respect mainly to the logistic support system design, to guarantee operational availability and thereby minimize delays. To this pur... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability-growth analysis for an Ada-coding process

    Publication Year: 1992, Page(s):280 - 284
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    In a recent software development effort, an ARINC Research Corporation development team translated 500 system transactions into 11000 lines of code in Ada-compilable program design language (PDL). The team established rigorous data collection and review processes to collect and classify defect data and identify reliability growth in the PDL being produced. Two classes of defects for the coding pro... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Lessons learned from evaluating launch-site processing problems of Space Shuttle payloads

    Publication Year: 1992, Page(s):259 - 265
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    The authors discuss a trend analysis program that is being conducted on the problem reports written during the processing of Space Shuttle payloads at Kennedy Space Center. The program is aimed at developing lessons learned that can both improve the effectiveness of the current payload processing cycles as well as help to guide the processing strategies for Space Station Freedom. The payload proce... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Preventive-maintenance impact on plant availability

    Publication Year: 1992, Page(s):177 - 180
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    The relationship between plant availability and preventive maintenance (PM) is examined. It is concluded that unexpected failures that lead to partial or full plant forced outages are costly events that should be avoided. Plant availability is improved (i.e., forced outages are reduced) in one of two ways: maintain or increase equipment MTBF (mean time between failure) and/or reduce its MTTR (mean... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Field test of an advanced maintenance-system

    Publication Year: 1992, Page(s):216 - 222
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    The Flight Control Maintenance Diagnostic System (FCMDS), a knowledge-based laboratory development that can serve as a prototype in addressing the common and persistent problems in the maintenance of military aircraft, has completed a preliminary field test. FCMDS was developed to test the theories that a range of maintenance technicians can effectively troubleshoot and repair complicated aircraft... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Designing to cost effectiveness: enhancing quality

    Publication Year: 1992, Page(s):44 - 52
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB)

    The authors present a practical application of cost-effectiveness analysis techniques through the definition and solution of a representative design tradeoff study using cost-effectiveness as a figure of merit for quality. They also describe a decision process based on the results of tradeoff studies to provide a method of integrating the `ilities' with design and manufacturing engineering to help... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Piece-part reliability-allocation using actual failure data

    Publication Year: 1992, Page(s):119 - 125
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB)

    The author documents the piece part failure assessment and predominant failure mode analyses performed on the US Strategic Petroleum Reserve (SPR) sites to provide piece part failure rates for the various classes of equipment. These data would then be used in a stock-level-allocation-model to determine the number of spares that should be stocked to meet particular mission requirements such as stoc... View full abstract»

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

    Publication Year: 1992, Page(s):274 - 279
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    The authors describe several system and design techniques to better assure the development of safe systems. Software safety, which constitutes the `brains' of systems, is the primary focus. Software determines the system reaction to errant input conditions; when the software is not functioning correctly, it can cause the hardware to create a safety mishap. A professional and comprehensive techniqu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Future role of NASA R&M assurance in space flight exploration

    Publication Year: 1992, Page(s):239 - 240
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (144 KB)

    The NASA Office of Safety and Mission Quality has introduced several R&M (reliability and maintainability) initiatives to address future program and mission requirements. The overall objective is to ensure that R&M criteria and activities are integrated as early as possible in the design phase. A representative cross-section of the major initiatives is given View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Development of a reliable and maintainable electronic countermeasures ECM pod: a case study

    Publication Year: 1992, Page(s):253 - 258
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    The authors summarize the development of the AN/ALQ-184 ECM (electronic countermeasures) pod. Particular attention is given to the reliability and maintainability test tasks which demonstrated that the AN/ALQ-184 pod is both reliable and maintainable. These test results were substantiated by operational use of the pod in combat View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The effects of root-cause analysis on the utility resource balance

    Publication Year: 1992, Page(s):171 - 176
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB)

    The authors describe the development of a model-based approach to the process of determining the root-cause of component failure in power plants. They define the elements needed to analyze heat exchanger failure scenarios and generalize the structure of the analytic and cause-linking processes to formulate a generic methodology. Case studies are cited that demonstrate the validity and necessity of... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Solutions to supportability concerns related to reduced-signature aircraft

    Publication Year: 1992, Page(s):210 - 215
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    It is pointed out that many of the new technologies and design philosophies associated with today's reduced-signature aircraft greatly increase the maintenance burden and limit sortie generation. To avoid this in future programs, it is imperative that R&M (reliability and maintainability) issues be addressed early and traded equally with performance requirements. By involving the R&M engin... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Challenges in RF and microwave system-reliability

    Publication Year: 1992, Page(s):37 - 43
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    The author presents an overview of the challenges in designing reliability into high-frequency RF and microwave systems. Data relative to the design, material properties, process-related issues, and environmental conditions have been compiled. Collective experience and published reports revealed several common problems including power and thermal dissipation, bond material, wire bonding, dielectri... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Automatic translation of digraph to fault-tree models

    Publication Year: 1992, Page(s):354 - 362
    Cited by:  Papers (10)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    The author presents a technique for converting digraph models, including those models containing cycles, to a fault-tree format. A computer program which automatically performs this translation using an object-oriented representation of the models has been developed. The fault-trees resulting from translations can be used for fault-tree analysis and diagnosis. Programs to calculate fault-tree and ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Redundancy design philosophy for catastrophic loss protection

    Publication Year: 1992, Page(s):1 - 4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    To ensure high flight safety and mission reliability in flight-critical electronics of aerospace vehicles, a redundancy design technique named brick wall is discussed. Basically, the technique proposes triplex redundant, independent paths where each path can self-monitor its own health (by using a comparison scheme within each path). Upon a fault detection, the whole path is taken offline. The inh... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Network-simulation modeling of interactions between maintenance and process systems

    Publication Year: 1992, Page(s):150 - 156
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    Network simulation modeling, which can be an important tool for reliability and maintainability (R&M) assessments, is described in some detail. As an example application, network simulation modeling is used to evaluate the adequacy of the maintenance system of a nuclear fuel processing plant. The interaction between the maintenance and chemical process systems is modeled using a Monte Carlo sa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A simulation model for maintenance planning

    Publication Year: 1992, Page(s):109 - 118
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    The author discusses the application of simulation models to evaluate maintenance policies for an automated production line in a steel rolling mill. This production line is a multistage transfer machine that converts black wire reel stock into ground and polished steel rods of standard length using multistage processing. In order to characterize subsystem failure and repair mechanisms, the entire ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • HiRel-reliability/availability integrated workstation tool

    Publication Year: 1992, Page(s):491 - 500
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB)

    The HiRel software tool is described and demonstrated by application to the mission avionics subsystem of the advanced system integration demonstrations (ASID) system that utilizes the PAVE PILLAR approach. HiRel marks another accomplishment toward the goal of producing a totally integrated computer-aided design (CAD) workstation design capability. Since a reliability engineer generally represents... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robustness of reliability-growth analysis techniques

    Publication Year: 1992, Page(s):303 - 315
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (756 KB)

    The author examines the robustness of techniques commonly applied to failure time data to determine if the failure rate (1/mean-time-between-failures) is changing over time. The models examined are the Duane postulate, Crow-Army material systems analysis activity, and Kalman filtering (also referred to as dynamic linear modeling). Each has as a foundation the underlying premise of changing failure... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Data-base reliability: a case study

    Publication Year: 1992, Page(s):272 - 273
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (188 KB)

    The author describes the process used to improve the quality of PRACA (Problem Reporting and Corrective Action) data at the Kennedy Space Center and the impact of data changes on the system users, using one data element (work area code) as the basis of the study. It is concluded that the implementation of data dictionary edits were extremely helpful in improving the quality and consistency of data... View full abstract»

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