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IEEE Transactions on Reliability

Issue 3 • Sep 1993

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Displaying Results 1 - 24 of 24
  • Failure-mechanism models for creep and creep rupture

    Publication Year: 1993, Page(s):339 - 353
    Cited by:  Papers (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1148 KB)

    This tutorial illustrates design situations where creep and creep rupture of components can compromise system performance over time, thereby acting as a wearout failure mechanism. Polycrystalline materials, such as metals and ceramics, and polymers are treated. Analytic microstructural creep mechanisms leading to failure of these materials are presented. Continuum microscale models for predicting ... View full abstract»

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  • Prediction intervals based on partial observations for some discrete distributions

    Publication Year: 1993, Page(s):459 - 463
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    Prediction limits of the following type are considered for the binomial, hypergeometric, and negative-binomial distributions. For the binomial distribution, suppose Xr successes have occurred in the first r trials, and based on this partial information it is desired to predict the total number of successes X s (r<s), which will ... View full abstract»

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  • Parallel processing of fault trees on a locally distributed multiple-processor network

    Publication Year: 1993, Page(s):436 - 441
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    Large fault trees are evaluated in a distributed fashion by pooling the computing power of several networked LISP processors. Direct evaluation of fault trees of complex systems is computationally intensive and can take a long time when performed on a single processor. An iterative top-down algorithm successively recognizes and reduces known patterns, and decomposes the problem into subtasks at ea... View full abstract»

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  • Component-relevancy and characterization results in multistate systems

    Publication Year: 1993, Page(s):478 - 483
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    Two new versions of component relevancy for multistate structure functions are introduced. They are compared with some existing component-relevance conditions and their general properties are investigated. Based on the two relevance conditions, two component-importance measures for multistate systems are defined; they are most appropriate for comparing components when a certain type of system impr... View full abstract»

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  • A pooling procedure for life-test data

    Publication Year: 1993, Page(s):455 - 458
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    A preliminary-test shrinkage estimator for the scale parameter in pooling data from extreme-value distributions is proposed. The optimum values of shrinkage coefficients for the preliminary-test shrinkage estimator are obtained based on a regret function. The optimum values of shrinkage coefficients and the critical values for the preliminary test are tabulated for several sample sizes. For a mean... View full abstract»

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  • Reliability of checkpointed real-time systems using time redundancy

    Publication Year: 1993, Page(s):427 - 435
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    Real-time computers are often used in embedded, life-critical applications where high reliability is important. A common approach to making such systems dependable is to vote on redundant processors executing multiple copies of the same task is described. The processors which make up such voted systems are subjected not only to independently occurring permanent and transient failure, but also to c... View full abstract»

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  • Decision theory in maintenance strategy for a 2-unit redundant standby system

    Publication Year: 1993, Page(s):401 - 407
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    Obtaining a good maintenance strategy for a standby system is discussed. The problem is analyzed via decision theory to determine the waiting time to call the repair facility (for a two-unit standby system) when the first piece of equipment fails. Previous research into this kind of system is briefly described, and a need for constructing a decision model is explained. The uncertainty of the param... View full abstract»

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  • Reliability of multistage production systems controlled by automated visual inspection

    Publication Year: 1993, Page(s):362 - 368
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    A probability model that examines the reliability of a failure-prone multistage production process controlled by a mechanism consisting of multiple cameras (one for each stage) and a single processor which is shared among all the stages (one stage at a time) is presented. The control functions for each stage and the system characteristics are presented. A computational formula for the steady-state... View full abstract»

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  • Reliability of 3-state device systems with simultaneous failures

    Publication Year: 1993, Page(s):470 - 477
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    This work is concerned with computing the reliability of redundant systems of three-state (e.g., good, failed-open or failed-short) devices. Allowing for multiple failures, formulas are presented for calculating the reliability of a parallel-series system or a series-parallel system which is formed from three-state, non-DFM (dual failure-mode) devices, and which might require multiple paths to fun... View full abstract»

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  • Approximate inference for location and scale parameters with application to failure-time data

    Publication Year: 1993, Page(s):449 - 454
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    A new method (SP/CI) for obtaining approximate confidence intervals for the location, scale, and quantiles based on sample data parameters is presented. The basis of SP/CI is a saddlepoint expansion; the requirements are the maximum likelihood estimate (MLE), a few cross derivatives of the log-likelihood evaluated at the MLE, and quantiles of the log(F) distribution. SP/CI is illustrated numerical... View full abstract»

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  • Reliability and design of 2-dimensional consecutive-k-out-of-n systems

    Publication Year: 1993, Page(s):488 - 490
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    A.A. Salvia and W.C. Lasher (IEEE Trans. Reliability, vol.39, no.3, p.382-5, Aug. 1990) introduced the concept of two-dimensional consecutive-k-out-of-n:F systems and developed upper and lower bounds for system reliability. This work extends the definition of two-dimensional consecutive-k-out-of-n:F systems to rectangular and cylindrical two-dimensional consecut... View full abstract»

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  • A generalized algorithm for evaluating distributed-program reliability

    Publication Year: 1993, Page(s):416 - 426
    Cited by:  Papers (43)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    A one-step algorithm, GEAR (generalized evaluation algorithm for reliability), is introduced that computes the reliability of a distributed computing system (DCS), which usually consists of processing element, memory unit, input/output devices, data-files, and programs as its shared resources. The probability that a task or an application can be computed successfully by sharing the required resour... View full abstract»

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  • The effect of memory-management policies on system reliability

    Publication Year: 1993, Page(s):375 - 383
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    The impact of memory-management policies on memory reliability is discussed. The tradeoffs in performance and reliability are studied as a function of the block-miss reload time. A detailed analysis of how reliability is affected by the memory space allocated is presented. This can be used to understand the relationship between the amounts of memory allocated and reliability. Separate effects are ... View full abstract»

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  • Loadability in composite generation/transmission power-system reliability evaluation

    Publication Year: 1993, Page(s):393 - 400
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    An approach to composite (generation and transmission) power-system reliability evaluation that is based on contingency enumeration and on a simulation process to assess the system state is introduced. Using an AC load-flow model, the analysis starts with a nonlinear optimization procedure to determine system loadability. System characteristics, constraints, and operator intervention are taken int... View full abstract»

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  • Reliability evaluation of a limited-flow network in terms of minimal cutsets

    Publication Year: 1993, Page(s):354 - 361, 368
    Cited by:  Papers (155)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    Many systems can be regarded as flow networks whose arcs have discrete and multi-valued random capacities. The probability of the maximum flow at each various level and the reliability of such a flow network can be calculated in terms of K-lattices which are generated from each subset of the family of all MCs (minimal cutsets). However the size of such a family 2m-1 (m=number o... View full abstract»

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  • Reliability bounds and critical time for the Birnbaum-Saunders distribution

    Publication Year: 1993, Page(s):464 - 469
    Cited by:  Papers (38)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    The Birnbaum-Saunders distribution, under certain conditions, can be used to model the fatigue failure-time caused by the catastrophic crack size. Reliability bounds for the Birnbaum-Saunders distribution and point and interval estimates for the critical time of the failure (hazard)-rate are discussed. The confidence intervals are constructed under the assumption that both parameters are unknown. ... View full abstract»

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  • Adaptive tests for the median

    Publication Year: 1993, Page(s):442 - 448
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    Various adaptive tests for the median of a distribution are proposed and compared. Each adaptive procedure uses in its first stage some measure or test of symmetry to decide whether the signed rank or the ordinary sign test should be used to test the hypothesis about the median of the distribution. The procedures proposed, A6 and R, are robust for a wide variety of di... View full abstract»

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  • Reliability of linear and circular consecutively-connected systems

    Publication Year: 1993, Page(s):484 - 487
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    J.G. Shanthikumar (IEEE Trans. Reliability, vol.R-36, p.546-50, Dec. 1987) proposed a new system structure called the consecutively connected system, which is a generalization of the well-studied consecutive-k-out-of-n:F system. An O(n 2) algorithm was developed for its reliability evaluation. This work studies the structure of the consecutively conne... View full abstract»

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  • A heuristic task assignment algorithm to maximize reliability of a distributed system

    Publication Year: 1993, Page(s):408 - 415
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (596 KB)

    Distributed systems potentially provide high reliability owing to the program and data-file redundancy possible. In many applications, high reliability is the major consideration for system design. Previous work has shown that the distribution of programs and data-files can affect the system reliability appreciably, and that redundancy in resources such as computers, programs, and data-files can i... View full abstract»

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  • Optimal cost-effective design of triple-modular-redundancy-with-spares systems

    Publication Year: 1993, Page(s):369 - 374
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    The design issue for the optimal number of spare units in a triple-modular-redundancy system with spare units, including fault coverage and common-cause failure, is addressed. Two aspects of the problem are shown: (1) how to minimize the average total system cost, and how to minimize the average total system cost subject to an acceptance designed reliability level; and (2) how to maximize the syst... View full abstract»

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  • Reliability of a general consecutive-k-out-of-n:F system

    Publication Year: 1993, Page(s):491 - 496
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    A linear (circular) consecutive-k-out-of-n:F system consists of n components ordered on a line (circle). Each component and the system have two states: good or failed. The system fails if and only if at least k consecutive components fail. The reliability of such systems is computed. The most general case is examined without any restriction on the components View full abstract»

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  • Increasing mission reliability by using open-loop control

    Publication Year: 1993, Page(s):384 - 392
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    Increasing the mission reliability of a one-degree of freedom computer-controlled servosystem is discussed. This is accomplished by providing an acceptable degraded mode of operation that can take over functioning of the system in the event of feedback sensor failure. The degraded mode of operation used in the event of feedback failure is open-loop control. The authors successfully applied open-lo... View full abstract»

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  • Consecutive-2-of-n:F systems with node and link failures

    Publication Year: 1993, Page(s):497 - 502
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    It has always been assumed that nodes can fail but not links, although most examples given for the consecutive-k-out-of-n :F system show no reason for such an assumption. The system described not only allows links to fail, but allows both nodes and links to fail, with distinct probabilities. For the k=2 case, the authors set up recursive equations for system reliability,... View full abstract»

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  • A Bayes method for assessing product-reliability during development testing

    Publication Year: 1993, Page(s):503 - 510
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    A fully Bayes approach is presented for analyzing product reliability during the development phase. Based on a Bayes version of the Barlow-Scheuer reliability-growth model, it is assumed that the product goes through a series of test/modification stages, where each product test yields attribute (pass-fail) data, and failure types are classified as fixable or nonfixable. Relevant information on bot... View full abstract»

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Aims & Scope

IEEE Transactions on Reliability is concerned with the problems involved in attaining reliability, maintaining it through the life of the system or device, and measuring it.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
W. Eric Wong
University of Texas at Dallas
Advanced Res Ctr for Software Testing and Quality Assurance

ewong@utdallas.edu