Computing limiting average availability of a repairable system through discretization

Debolina Chatterjee and Jyotirmoy Sarkar

Reliability Engineering and System Safety, 2020, vol. 193, issue C

Abstract: Formulas for limiting average availability of a repairable system exist only for some special cases: (1) either the lifetime or the repair time is exponential; or (2) there is one spare unit and one repair facility. We consider a more general setting involving several spare units and several repair facilities; and we allow arbitrary life- and repair time distributions. Under periodic monitoring, which essentially discretizes the time variable, we compute the limiting average availability. The discretization approach closely approximates the existing results in the special cases; and increases the limiting average availability as we include additional spare unit or additional repair facility.

Keywords: Periodic monitoring; Perfect repair; Semi-Markov process; Transition probability; Sojourn time (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:193:y:2020:i:c:s0951832019303801

DOI: 10.1016/j.ress.2019.106616

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