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Reliability, IEEE Transactions on

Issue 1 • Date April 1976

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Displaying Results 1 - 25 of 35
  • [Front cover]

    Publication Year: 1976 , Page(s): c1
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    Freely Available from IEEE
  • IEEE Reliability Group

    Publication Year: 1976 , Page(s): nil1
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    Freely Available from IEEE
  • [Breaker page]

    Publication Year: 1976 , Page(s): nil1
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  • Don't Use Hypothesis Tests

    Publication Year: 1976 , Page(s): 1
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  • What Do the Data Tell You?

    Publication Year: 1976 , Page(s): 1
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  • A New Algorithm for Symbolic System Reliability Analysis

    Publication Year: 1976 , Page(s): 2 - 15
    Cited by:  Papers (73)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2054 KB)  

    This paper presents a new algorithm for symbolic system reliability analysis. The method is applicable to system graphs with unreliable branches or nodes. Each branch is directed or undirected. Element probabilities need not be equal, but their failures are assumed to be s-independent. The new method makes no attempt to generate mutually exclusive events from the set of paths or cutsets but uses a technique to reduce greatly the number of terms in the reliability expression. Actual programming results show that the new method can efficiently handle systems having fewer than 20 paths or cutsets between the input-output node pair. View full abstract»

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  • Comment on Editorial "Watch Your Language

    Publication Year: 1976 , Page(s): 15
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    First Page of the Article
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  • Confidence and `A' and `B' Allowable Factors for the Weibull Distribution

    Publication Year: 1976 , Page(s): 16 - 19
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (664 KB)  

    s-Confidence and `A' and `B' allowable factors for sample sizes 2-30, obtained by Monte Carlo techniques, for populations whose property measurements can be represented by a 2-parameter Weibull distribution are developed. The factors for the Weibull case are presented here in graphical form which allows practical engineering application and readily shows sample size effects. A numerical example illustrates the use of the factors. View full abstract»

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  • Weibull Percentile Estimates and Confidence Limits from Singly Censored Data by Maximum Likelihood

    Publication Year: 1976 , Page(s): 20 - 24
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (805 KB)  

    This paper presents a simple chart that provides approximate large-sample s-confidence limits for the percentiles of a Weibull life distribution estimated by maximum likelihood from singly censored data. The chart also helps determine the appropriate sample size and length of a life test. The methods are illustrated with life data on a locomotive control. View full abstract»

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  • Estimation of Weibull Parameters With Competing-Mode Censoring

    Publication Year: 1976 , Page(s): 25 - 31
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (990 KB)  

    Existing results are reviewed for the maximum likelihood (ML) estimation of the parameters of a 2-parameter Weibull life distribution for the case where the data are censored by failures due to an arbitrary number of independent 2-parameter Weibull failure modes. For the case where all distributions have a common but unknown shape parameter the joint ML estimators are derived for i) a general percentile of the j-th distribution, ii) the common shape parameter, and iii) the proportion of failures due to failure mode j. Exact interval estimates of the common shape parameter are constructable in terms of the ML estimates obtained by using i) the data without regard to failure mode, and ii) existing tables of the percentage points of a certain pivotal function. Exact interval estimates for a general percentile of failure-mode-j distribution are calculable when the failure proportion due to failure-mode-j is known; otherwise a joint s-confidence region for the percentile and failure proportion is calculable. It is shown that sudden death endurance test results can be analyzed as a special case of competing-mode censoring. Tabular values for the construction of interval estimates for the 10-th percentile of the failure-mode-j distribution are given for 17 combinations of sample size (from 5 to 30) and number of failures. View full abstract»

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  • Manuscripts Received

    Publication Year: 1976 , Page(s): 31
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    Freely Available from IEEE
  • Age Replacement In Simple Systems With Increasing Loss Functions

    Publication Year: 1976 , Page(s): 32 - 34
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (467 KB)  

    Some age replacement policies are investigated and conditions for the unique existence of an optimum policy are derived. The optimum policy is the one which minimizes the expected cost per unit time over an infinite time span or maximizes the proportion of time during which the system is in operation. Losses have been expressed through increasing operating cost, if the objective is to minimize the expected total cost per unit time and through increasing renewal times if the objective is to maximize the availability of the system. View full abstract»

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  • Manuscripts Received

    Publication Year: 1976 , Page(s): 34
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    Freely Available from IEEE
  • On Scheduling the Delivery of spare Units

    Publication Year: 1976 , Page(s): 35 - 37
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (452 KB)  

    A system with a special operating unit is considered. We determine when the spare unit should be delivered and replaced for the original one, where the delivery time is considered. Four models are introduced and the delivery policy for each model is found which maximizes the s-expected net earning rate (with no discount) or the total s-expected net earnings (with discount). View full abstract»

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  • Book Review

    Publication Year: 1976 , Page(s): 37
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  • Dependability Under Priority Repair Disciplines

    Publication Year: 1976 , Page(s): 38 - 40
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (460 KB)  

    We have studied the operational behaviour of a complex system consisting of two classes of units (with standby redundancy in one class) under two repair disciplines, viz., preemptive-resume and preemptive-repeat. Units have constant failure rate, while repair follows general probability distributions. Supplementary variable and Laplace transform techniques have been used to obtain the transient state probabilities for such a system. From these, steady state behaviour of the complex system has been examined. View full abstract»

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  • Manuscripts Received

    Publication Year: 1976 , Page(s): 40
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  • Confidence Limits for Redundant-System Availability

    Publication Year: 1976 , Page(s): 41 - 42
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (290 KB)  

    s-Confidence limits are established for the Availability of a standby redundant system (1-out-of-N:G system) for both hot and cold spares consisting of several identical units and repair facilities. The failure and repair rates of the units are s-independent, constant, and estimated from test data. View full abstract»

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  • Availability of the 2-out-of-n: F System

    Publication Year: 1976 , Page(s): 43 - 44
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (306 KB)  

    Assuming constant failure rate and general repair distribution, this paper treats the availability of the 2-out-of-n:F system by identifying an imbedded Markov renewal process. View full abstract»

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  • Manuscripts Received

    Publication Year: 1976 , Page(s): 44
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    Freely Available from IEEE
  • Failure by the Processes of Nucleation and Growth

    Publication Year: 1976 , Page(s): 45 - 48
    Cited by:  Papers (1)
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    Failure of products due to the combined processes of nucleation and growth of deleterious phases is discussed and categorized. Reliability predictions are made for both catastrophic and progressive failure. The technique is very general and relates the thermodynamic and kinetic data of the failure mechanism to product lifetime. Measurements of nucleation and growth rates might result in savings of product test-time and money. View full abstract»

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  • A Comparison of Reliability Growth Models

    Publication Year: 1976 , Page(s): 49 - 51
    Cited by:  Papers (1)
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    A reliability growth model is an analytic tool that accounts for changes in reliability due to design modifications and other corrective actions taken during the develpment, production, and use of a new piece of equipment. This paper describes a simulation study, and its conclusions, comparing four general reliability growth models that have been proposed in the reliability literature. Details of the simulation results are available in a separate Supplement. View full abstract»

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  • Positions Available

    Publication Year: 1976 , Page(s): 51
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  • Rapid Testing for Noise Immunity of Electron Devices

    Publication Year: 1976 , Page(s): 52 - 53
    Cited by:  Papers (4)
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    Current switching in power control devices sometimes has serious noise difficulties. This paper presents a method of testing and measuring noise immunity. The noise immunity of a thyristor with magnetic core or unijunction transistor is analyzed and measured. The experiment agrees well with the theory. View full abstract»

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  • Computation of Loss-of-Load Probability

    Publication Year: 1976 , Page(s): 54 - 55
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (284 KB)  

    When the reliability of an electric power system is evaluated by the Loss-of-Load Probability (LOLP) method, it is customary to take into account the uncertainty in load forecasts by associating a peak-load distribution (as a parameter expressing the uncertainty) with the assumed daily peak-load duration curve, then to compute the unconditional LOLP as an average of the conditional LOLP weighted by the parameter distribution. In this note it is shown that an alternate and simpler procedure results when first the daily peak-load curve is modified so that the uncertainty is incorporated in it, then the usual LOLP method is applied. 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