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Reliability, IEEE Transactions on

Issue 4 • Date Oct 1988

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Displaying Results 1 - 17 of 17
  • Variance importance of system components by Monte Carlo

    Publication Year: 1988 , Page(s): 421 - 423
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (192 KB)  

    The authors present an algorithm to compute variance importance, a measure of uncertainty importance for system components. A simple equation has been derived for the measure, and Monte Carlo simulation is used to obtain numerical estimates. The algorithm overcomes NP-difficulty (non-polynomial difficulty) which exists in earlier methods for computing uncertainty importance, and is simpler, more a... View full abstract»

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  • Estimation of system reliability for independent series components with Weibull life distributions

    Publication Year: 1988 , Page(s): 401 - 405
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (316 KB)  

    The reliability of a series system with independent components is estimated based on random samples from Weibull failure distributions with parameters θi and βi. It is assumed that the βi's are known, which reduces the reliability of the system to a function, γg(θ), of θ=(θ1, . . ., θp). An estimat... View full abstract»

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  • A type-II censored, log test time based, component-testing procedure for a parallel system

    Publication Year: 1988 , Page(s): 406 - 412
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (480 KB)  

    The authors consider the problem of acceptance testing for a parallel (1-out-of-n:G) system of different components with constant failure rates. The components are individually tested and the tests are terminated as soon as a preassigned number of each component fails. The authors provide a criterion for accepting or rejecting the system based on the sum of the logarithms of the total tim... View full abstract»

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  • Bayes estimation of the parameters and reliability function of the 3-parameter Weibull distribution

    Publication Year: 1988 , Page(s): 364 - 369
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (364 KB)  

    The authors obtain Bayes estimates of the parameters and reliability function of a 3-parameter Weibull distribution and compare posterior standard-deviation estimates with the corresponding asymptotic standard-deviation estimates of their maximum likelihood counterparts. Numerical examples are given View full abstract»

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  • Systems with exponential life using components with HNBUE lives

    Publication Year: 1988 , Page(s): 424 - 426
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (212 KB)  

    The authors show that if the convolution of n HNBUE distributions is exponential, then n-1 of the distributions are degenerate at zero and the other distribution is exponential. This result is also shown to hold for the wider HNBUE(3) class. The result extends similar results previously published for the IFRA and NBU cases. The authors conjecture that if a monotonic system formed... View full abstract»

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  • An approximation for large consecutive-k-out-of-n:F systems

    Publication Year: 1988 , Page(s): 386 - 387
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (120 KB)  

    The authors consider a consecutive-k-out-n:F system consisting of identically distributed and statistically independent components, where the life distribution of an individual component is Weibull distributed with scale parameter 1/λ and shape parameter B. Let Tn be the life length of the consecutive-k-out-of-n:F system. The authors p... View full abstract»

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  • Selection of a checkpoint interval in a critical-task environment

    Publication Year: 1988 , Page(s): 395 - 400
    Cited by:  Papers (20)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (424 KB)  

    The selection of an optimal checkpointing strategy has most often been considered in the transaction processing environment where systems are allowed unlimited repairs. In this environment an optimal strategy maximizes the time spent in the normal operating state and consequently the rate of transaction processing. This paper seeks a checkpoint strategy which maximizes the probability of critical-... View full abstract»

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  • A new R&M measure and its estimation

    Publication Year: 1988 , Page(s): 413 - 420
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (544 KB)  

    The reliability and maintainability measure is referred to as MTUT. It is the mean time to restore an equipment and its maintenance system to its original working status; it is expressed as a proportion of the mean time to failure for any given equipment. This measure integrates maintenance and repair time expenditures of all types from three levels of maintenance. Other measures discussed in the ... View full abstract»

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  • Shrinkage estimation of scale parameter of the extreme-value distribution

    Publication Year: 1988 , Page(s): 370 - 374
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (296 KB)  

    The author studies the usual preliminary test estimator of the scale parameter of the extreme-value distribution in censored samples. The optimum levels of significance and their corresponding critical values for the preliminary test are obtained based on the minimax regret criterion. A preliminary test shrinkage estimator that is smoother than the usual preliminary test estimator is proposed as w... View full abstract»

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  • Queueing model of a bi-level Markov service-system and its solution using recursion

    Publication Year: 1988 , Page(s): 427 - 433
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (456 KB)  

    The authors present a closed queueing model of a bi-level stochastic service system using a Markov process. The existence of two modes of operation in some real situations such as reliability, inventory, and production problems is outlined. A recursive solution technique is developed for computing steady-state probabilities and the relevant performance measures for such a system. A bi-level system... View full abstract»

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  • A practical approach to testing electronic equipment for susceptibility to AC line transients

    Publication Year: 1988 , Page(s): 355 - 359
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (552 KB)  

    Modern electronic equipment is very susceptible to damage due to AC line transients. This paper describes a relatively simple procedure for testing the equipment for susceptibility to line transients and describes some low cost equipment for performing two types of simulated tests. The susceptibility of the equipment under test, based on the test results, is assessed View full abstract»

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  • Testing whether failure rate changes its trend

    Publication Year: 1988 , Page(s): 375 - 378
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (272 KB)  

    A new test procedure is proposed for testing the constant failure rate against the alternative that the failure rate changes its trend, assuming that the proportion of the population that fails at or before the change-point of failure rate is known. The test procedure is based on the L-statistic theory and the power of the test is investigated for small samples by Monte Carlo experiment View full abstract»

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  • Two properties of mixtures of exponential distributions

    Publication Year: 1988 , Page(s): 383 - 385
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (160 KB)  

    Two properties characterizing mixtures of exponential distributions are obtained. The first result, suggested by Puri (1973), is improving in the case of a mixture of two exponentials. A result generalizing that of Nassar & Mahmoud (1985) is considered View full abstract»

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  • Optimal `series-parallel' networks of 3-state devices

    Publication Year: 1988 , Page(s): 388 - 394
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (568 KB)  

    A 3-state component is one which can fall in two different modes: an open mode and a shorted mode. Systems built from such components can also experience either of these two failure modes. For a given number of s-identical s-independent components, a pure `series' or pure `parallel' configuration would be most reliable if only one of the two failure modes were possible. This pape... View full abstract»

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  • Characterizations of Gamma and negative binomial distributions [reliability application]

    Publication Year: 1988 , Page(s): 379 - 382
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (200 KB)  

    Characterizations of gamma and negative binomial distributions are presented by using the conditional expectation. A necessary and sufficient condition is given in terms of the failure rate for each distribution. To illustrate the usefulness of the results, the authors discuss the mean residual-life of the gamma distribution View full abstract»

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  • Reliability-constrained dimensioning of transmission resources in packet-switched networks

    Publication Year: 1988 , Page(s): 434 - 442
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (676 KB)  

    The author investigates the problem of dimensioning the transmission resources of a packet-switched communication network satisfying suitable reliability targets. The goal is a communication network providing a minimal transport capability in the presence of failures in network components. This goal is expressed in terms of availability functions to be satisfied by the reliability of communication... View full abstract»

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  • Moment estimators for the 3-parameter Weibull distribution

    Publication Year: 1988 , Page(s): 360 - 363
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (256 KB)  

    Weibull moments are defined generally and then calculated for the 3-parameter Weibull distribution with non-negative location parameter. Sample estimates for these moments are given and used to estimate the parameters. The results of a simulation investigation of the properties of the parameter estimates are discussed briefly. A simple method of deciding whether the location parameter can be consi... 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
Way Kuo
City University of Hong Kong