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IEEE Transactions on Reliability

Issue 5 • Dec. 1988

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Displaying Results 1 - 21 of 21
  • Comments on "New practical Bayes estimators for the 2-parameter Weibull distribution" [with reply]

    Publication Year: 1988, Page(s):562 - 565
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (359 KB)

    The commenter maintains that an expression in the above-mentioned paper (ibid., vol.R-31, p.194-7, June 1982) on which the results are based is wrong, and therefore the results are wrong. The author rebuts the commenter's argument point by point.<> View full abstract»

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  • Simple enumeration of minimal cutsets of acyclic directed graph

    Publication Year: 1988, Page(s):484 - 487
    Cited by:  Papers (35)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Two methods are given that use combinations of nodes to enumerate all minimal cutsets. One simply has to enumerate all combinations of orders 1 to N-3 of nodes from 2 to N-1, where N is the total number of nodes. Collecting only those symbols of links of first row of adjacency matrix and in the rows given in a combination that are not in the columns of the combination, ... View full abstract»

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  • Distribution of residual system-life after partial failures

    Publication Year: 1988, Page(s):539 - 544
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    A general method is presented for determining the distribution of residual system life (RSL) of a coherent system after some partial failures. The RSL begins once all the system components of at least one member of the well-defined set of residual life sets have failed. The approach is based on the knowledge of a special distribution of component lives and system life. It is general with respect t... View full abstract»

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  • Stochastic modelling of human-performance reliability

    Publication Year: 1988, Page(s):501 - 504
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    A stochastic model is developed to quantify the reliability of human performance. The model provides closed-form mathematical expressions into which multiple factors affecting the reliability of man-machine system can be incorporated. Three elements of man-machine systems are combined to form the framework for modeling: random task arrivals, transient human performance characteristics (detection o... View full abstract»

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  • Reliability optimization of computer-communication networks

    Publication Year: 1988, Page(s):475 - 483
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    The evaluation of the reliability of a given computer communication network is a NP-hard problem. Hence, the problem of assigning reliabilities to links of a fixed computer communication network topology to optimize the system reliability is also NP-hard. A heuristic method is developed to assign links to a given topology so that the system reliability of the network is near optimal. The method pr... View full abstract»

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  • Measures of testability for automatic diagnostic systems

    Publication Year: 1988, Page(s):531 - 538
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    Evaluation models of automatic diagnostic systems are investigated taking into consideration their imperfections such as failure to diagnose, incorrect isolation, false alarms, and inability to duplicate. Three measures of effectiveness are developed that enable the decision-maker to assess accurately the real capability of the diagnostic system and to evaluate and compare the performances of alte... View full abstract»

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  • Exact reliability analysis of combinational logic circuits

    Publication Year: 1988, Page(s):493 - 500
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    A novel method is presented for the exact reliability analysis of combinational logic circuits. A model is developed that allows the logic circuit to be presented by a circuit equivalent graph (CEG). The reliability is analyzed by a systematic searching of certain subgraphs from the CEG. A computer algorithm and an example are given. The method gives the exact solution to the combinational logic c... View full abstract»

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  • Maximum likelihood analysis of component reliability using masked system life-test data

    Publication Year: 1988, Page(s):550 - 555
    Cited by:  Papers (74)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    Life data from multicomponent systems are often analyzed to estimate the reliability of each system component. Due to the cost and diagnostic constraints, however, the exact cause of system failure might be unknown. Referring to such situations as being masked, the authors use a likelihood approach to exploit all the available information. They focus on a series system of three components, each wi... View full abstract»

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  • Relayed consecutive-k-out-of-n:F lines

    Publication Year: 1988, Page(s):512 - 514
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    A consecutive-k-out-of-n:F line is a system of components in a sequence such that the system fails if and only if k consecutive components all fail. Relayed systems often quoted as examples of such systems differ from the definition by the fact that the first component must work to initiate the relay (in some cases the last component also must work). Such systems are di... View full abstract»

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  • Nonparametric Bayes estimation of a distribution under nomination sampling

    Publication Year: 1988, Page(s):558 - 561
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    Nomination sampling is a sampling process in which every observation is the maximum of a random sample from some distribution. If the data are {(Yi, Ki), i =1, . . ., n} where Ki is the size of sample i, and Yi is the maximum of a random sample of size Ki from an unknown C... View full abstract»

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  • The use of Petri nets to analyze coherent fault trees

    Publication Year: 1988, Page(s):469 - 474
    Cited by:  Papers (36)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    The use of Petri nets to represent fault trees is discussed. Using reachability and other analytic properties of Petri nets, a more general and useful method to study the dynamic behavior of the model at various levels of abstraction is examined. The problems of fault-detection and propagation are discussed. For simplicity, only coherent fault trees are considered. However, the representation and ... View full abstract»

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  • Experimental and statistical analyses of surface-mount technology PLCC solder-joint reliability

    Publication Year: 1988, Page(s):524 - 530
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (876 KB)

    The mechanical integrity of surface-mount technology (SMT) plastic leaded chip carrier (PLCC) solder joints has been studied by a four-point mechanical flexure fatigue test. The effects of printed circuit board (PCB) pad surface composition and testing temperature on solder-joint reliability are emphasized. Three sets of PCBs have been tested, one with Cu-Ni-Sn pad surface metallurgy, one with Cu-... View full abstract»

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  • A method to predict an average activation energy for subassemblies

    Publication Year: 1988, Page(s):458 - 461
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The problem of predicting an average acceleration effect under the Arrhenius model of a subassembly with known operating and stress conditions is addressed. The average effect includes the several failure mechanisms that can exist along with the several stress conditions across the product associated with unique temperature profiles. The averaging effect is modeled by predicting an average activat... View full abstract»

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  • An efficient algorithm for computing global reliability of a network

    Publication Year: 1988, Page(s):488 - 492
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    Global reliability of a network is defined and then evaluated using spanning trees of the network graph. An algorithm for generating spanning trees (termed, appended spanning trees) that are mutually disjoint is proposed. Each appended spanning tree represents a probability term in the final global reliability expression. The algorithm gives the global reliability of a network directly. It is illu... View full abstract»

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  • Modeling discrete bathtub and upside-down bathtub mean residual-life functions

    Publication Year: 1988, Page(s):545 - 549
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    A general modeling approach is presented that allows parametric modeling of the mean residual life so that maximum-likelihood estimation of models can be done. This will enable such parametric models to be estimated for complete discrete data as well as right-censored discrete data. A simple example is presented where the mean residual life increases, then decreases; however, the hazard rate also ... View full abstract»

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  • Multistate Markov models for systems with dependent units

    Publication Year: 1988, Page(s):505 - 511
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    A system that can be described by a homogeneous continuous-time discrete-state Markov process is treated. The case in which transition rates for each unit depend on the current state of the system is considered. The condition in which the transition-rate matrix of the system has the form of a modified Kronecker sum of transition-rate matrices of its units is investigated. An algorithm based on the... View full abstract»

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  • Hazard rates of nonequispaced discrete distributions

    Publication Year: 1988, Page(s):556 - 557
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB)

    The author proposes a definition of hazard rate of nonequispaced discrete distributions. He presents the relation of the hazard rate of the discrete distribution, obtained by condensing a continuous-life distribution, to the hazard rate of the continuous-life-distribution View full abstract»

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  • Qualitative properties of profit-making k-out-of-n systems subject to two kinds of failures

    Publication Year: 1988, Page(s):515 - 520
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    Several properties are derived for optimal k-out-of-n systems in which: (1) the i.i.d components can be with a prespecified frequency, in one of two possible modes; (2) components are subject to failures in each of the two modes; and (3) the costs of two kinds of system failures are not necessarily the same. A characterization of the optimal k that maximizes the mean sy... View full abstract»

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  • Implementation of a factoring algorithm for reliability evaluation of undirected networks

    Publication Year: 1988, Page(s):462 - 468
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    A description is given of a FORTRAN implementation of a factoring algorithm (LR-F) for reliability evaluation of undirected networks. The algorithm is used in conjunction with PolyChain, a FORTRAN program for reliability evaluation of undirected networks of a special structure via polygon-to-chain reductions. PolyChain is used as a preprocessor to reduce the size of the network. It places a constr... View full abstract»

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  • The efficiency of computing the reliability of k-out-of n systems

    Publication Year: 1988, Page(s):521 - 523
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    It is shown that the algorithm of R.S. Barlow and K.D. Heidtmann (ibid., vol.R-33, p.322-3, Oct. 1984) is more computationally efficient than those reported by S.P. Jain and K. Gopal (ibid., vol.R-34, p.144-6, June 1985) and S. Rai et al. (ibid., vol.R-36, p.261-5, June 1987). Efficiency is measured here by the number of multiplications View full abstract»

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  • A critique of Mil-Hdbk-217E reliability prediction methods

    Publication Year: 1988, Page(s):453 - 457
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    Some limitations on the use of Mil-Hdbk-217E models within the design process are discussed. Reliability was predicted for three printed wiring boards representative of those used for avionic applications in order to evaluate the inherent variability. Parts count and parts stress analyses were conducted in three environments using Mil-Hdbk-217E models. In addition, parts stress analyses were condu... 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