Dynamic assessment of multi-state systems using phase-type modeling

Serkan Eryilmaz

Reliability Engineering and System Safety, 2015, vol. 140, issue C, 71-77

Abstract: Multi-state systems have attracted great attention due to their wide applications in engineering. They have been effectively used in modeling various systems such as power supply systems and transportation systems. In this paper, phase type modeling is proposed for dynamic assessment of nonrepairable multi-state systems when the system degrades according to a Markov process. The utility of phase type modeling is demonstrated in the computation of mean lifetimes, mean residual lifetimes, and derivation of survival functions of series and parallel systems. A stochastic comparison result between two systems is also obtained using phase representations of survival functions. Extensive numerical results are presented to illustrate the applicability of the approach.

Keywords: Markov process; Multi-state systems; Phase type distributions (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:140:y:2015:i:c:p:71-77

DOI: 10.1016/j.ress.2015.03.037

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