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System Availability and Some Design Implications

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  • Irwin W. Kabak

    (New York University, New York, New York, and MODELMETRICS, Inc., Edison, New Jersey)

Abstract

This paper analyses in detail a system with an exponential reliability function and a constant repair time. It first presents the availability and its variance for a given number of cycles, a finite length of time, and a steady state. Then, it shows how the variance of the availability can be used to support an economic evaluation of start-up operations, presents some design criteria based on a total system cost model that includes a function of the availability (a down-time that is the complement of availability), gives optimal values of the mean time to failure and the mean repair time, and exhibits methods for a sensitivity analysis of these optimal values and of the total system. The paper concludes with a numerical example.

Suggested Citation

  • Irwin W. Kabak, 1969. "System Availability and Some Design Implications," Operations Research, INFORMS, vol. 17(5), pages 827-837, October.
    • Handle: RePEc:inm:oropre:v:17:y:1969:i:5:p:827-837
    DOI: 10.1287/opre.17.5.827
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