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Reliability, IEEE Transactions on

Issue 5 • Date Dec. 1977

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Displaying Results 1 - 25 of 44
  • [Front cover]

    Publication Year: 1977 , Page(s): c1
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  • IEEE Reliability Group

    Publication Year: 1977 , Page(s): nil1
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  • [Breaker page]

    Publication Year: 1977 , Page(s): nil1
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  • Unsung Heros

    Publication Year: 1977 , Page(s): 305
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  • Bayesian Trivia

    Publication Year: 1977 , Page(s): 305
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  • Electronic System Thermal Design for Reliability

    Publication Year: 1977 , Page(s): 306 - 310
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (855 KB)  

    Thermal design and analysis are important in Reliability/Availability/Maintainability R/A/M programs for electronic systems. A thermal design approach emphasizing the coupling of heat transfer theory and experiment to basic reliability considerations is illustrated here by discussing typical thermal problems on several system integration levels for a high reliability, multi-cabinet hybrid computer system. This paper emphasizes a particular attitude toward the thermal aspects of equipment design, one that is flexible in the methods of analysis, comprehensive in its treatment of each integration level in a complementary fashion, and oriented toward the goals of the R/A/M program as a whole. The examples show that conventional analytic solutions, when coupled with reliability theory and a modicum of experimental results, lead to effective thermal design. View full abstract»

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  • Efficient Evaluation of System Reliability by Monte Carlo Method

    Publication Year: 1977 , Page(s): 311 - 315
    Cited by:  Papers (40)
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    This paper presents a new Monte Carlo method to estimate the reliability of a large complex system represented by a reliability block diagram or by a fault tree. Two binary functions are introduced; one dominates the system structure function and the other is dominated by the structure function. These functions can be constructed easily by using part of path sets and cut sets of the system. Through the use of these binary functions, two variance-reducing techniques (control variate and importance sampling) are applied to the Monte Carlo evaluation of the system reliability. We prove that the new Monte Carlo method gives a reliability estimate with a smaller variance than that of the crude Monte Carlo method. View full abstract»

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  • Manuscripts Received

    Publication Year: 1977 , Page(s): 315
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  • Comment on: Computer-aided Synthesis of Fault-trees

    Publication Year: 1977 , Page(s): 316 - 317
    Cited by:  Papers (10)
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    First Page of the Article
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  • A Direct Method to Calculate the Frequency and Duration of Failures for Large Networks

    Publication Year: 1977 , Page(s): 318 - 321
    Cited by:  Papers (4)
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    This paper presents a method to find the frequency and duration of outage of large complex networks through the network approach. Unreliable nodes can be considered. Numerical examples are given to elucidate the theory. The results from this technique are fairly accurate. A feature of the method is that it can handle large systems having reliable nodes with a present day computer. Even for those systems which contain unreliable nodes, the number of combinations of unreliable nodes required is much less than the number of terms needed by any path or cutset enumeration method. The use of delta-star transformations introduces some error in the results, but the error is small enough as seen from the numerical values for the examples solved in this paper. View full abstract»

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  • [Advertisement]

    Publication Year: 1977 , Page(s): 321
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  • A Recursive Algorithm For Bounding Network Reliability

    Publication Year: 1977 , Page(s): 322 - 327
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1072 KB)  

    This paper presents a new recursive algorithm for computing bounds on the reliability of a directed, source-sink network whose arcs either function or fail with known probabilities. The reliability is the probability that a path (consisting only of functioning arcs) exists from the network's source to its sink. The algorithm is based on a partitioning of the nodes of the network into subsets S1, S2,..., SP such that all predecessors of a node belonging to Sp(2) View full abstract»

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  • Manuscripts Received

    Publication Year: 1977 , Page(s): 327
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  • Duration of Hidden Faults in Randomly Checked Systems

    Publication Year: 1977 , Page(s): 328 - 330
    Cited by:  Papers (1)
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    The pdf of the duration of hidden (non self-reporting) faults is derived. It depends on the pdf of item's life and the pdf of the distance between checks. View full abstract»

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  • A Unified Availability Analysis Method for Systems Containing Design Errors

    Publication Year: 1977 , Page(s): 331 - 334
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    This paper gives a unified approach to modeling digital structures and accounts for i) the hardware failure process and ii) the failure process due to design errors. The instantaneous unavailability, always larger than the value resulting from the hardware performance, shows an appreciable peak with respect to its asymptotic value whose height and length are functions of the failure rates associated with the different design errors. An approximate value for the maximum of this peak is given which, under certain conditions, can be used as a more realistic figure for unavailability than the asymptotic value usually considered. View full abstract»

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  • Dynamic Decision Elements for 3-Unit Systems

    Publication Year: 1977 , Page(s): 335 - 338
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    Simple triplication is widely analyzed either as a static redundancy by itself or as an active core for dynamic redundancy. Its practical value was tested when it was used to protect the hardcore test and repair processor (TARP) of JPL STAR computer and the CPU of Guidance Computer for SATURN V. Two current techniques for using triplicated modules are TMR and TMR/Simplex. In this paper a set of dynamic decision techniques is proposed for better use of triplication, assuming Pr {system is in a specified failure mode | system has failed} is known for all failure modes of concern. View full abstract»

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  • Annual Reliability & Maintainability Symposium Proceedings Price List

    Publication Year: 1977 , Page(s): 338
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  • Optimization of System Reliability by Sequential Weight Increasing Factor Technique

    Publication Year: 1977 , Page(s): 339 - 341
    Cited by:  Papers (4)
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    In this paper the problem of maximizing the reliability of a complex system by choosing the reliability of its components is solved using the new constrained optimization technique, SWIFT. Lower and upper bounds on the individual components are incorporated into the algorithm by means of suitable variable transformations. This algorithm, when tested on a numerical example, found a higher system reliability in a lesser number of function evaluations than SUMT. View full abstract»

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  • An Optimum Procedure for Component Testing in the Demonstration of Series System Reliability

    Publication Year: 1977 , Page(s): 342 - 345
    Cited by:  Papers (16)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (587 KB)  

    The paper considers a series system consisting of n components with constant failure rates and obtains a component testing procedure of minimum cost such that a) the probability of accepting a system whose reliability is less than R0 is less than ¿, and b) the probability of rejecting a system whose reliability is greater than R1 is less than ß. A decision rule is used that accepts the system if and only if the number of component failures does not exceed k, where k is a given integer. The optimum value of k and the associated component testing times which will satisfy the above probability requirements are obtained. The optimum testing time is the same for each component, irrespective of the individual component testing costs. View full abstract»

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  • Correction to "Redundancy Optimization in General Systems"

    Publication Year: 1977 , Page(s): 345
    Cited by:  Papers (1)
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    First Page of the Article
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  • A Bayesian Note on Reliability Growth During a Development Testing Program

    Publication Year: 1977 , Page(s): 346 - 347
    Cited by:  Papers (14)
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    The problem of estimating the reliability of a system which is undergoing development testing is considered from a Bayesian standpoint. Formally, m sets of binomial trials are performed under conditions which lead to an ordering, ¿1 < ¿2 < ... < ¿m, of the binomial parameters. The parameter of interest is ¿m, the final underlying reliability of the system. The marginal posterior pdf for ¿m is easily obtained when uniform prior pdf's are assumed. The method is illustrated. View full abstract»

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  • Manuscripts Received

    Publication Year: 1977 , Page(s): 347
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  • Estimation of Reliability After Corrective Action

    Publication Year: 1977 , Page(s): 348 - 351
    Cited by:  Papers (1)
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    Asymptotic distributions of several estimators, proposed in the literature for estimating reliability after corrective action, are derived here. Furthermore, the maximum likelihood estimators for the special case of equal failure probabilities are obtained. Some of the estimators appearing in the literature are shown to be not s-consistent. View full abstract»

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  • Manuscripts Received

    Publication Year: 1977 , Page(s): 351
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  • Relationships Among Distributions

    Publication Year: 1977 , Page(s): 352 - 353
    Cited by:  Papers (7)
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    Two diagrams show relationships among pdf's or pmf's of distributions, and pdf's of extreme distributions. Two comments on distributions are further made. 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