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Acta Armamentarii ›› 2014, Vol. 35 ›› Issue (9): 1488-1494.doi: 10.3969/j.issn.1000-1093.2014.09.023

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Reliability Model of Multi-state Repairable Systems with Different Repair Effects

DI Peng, LI Fang, CHEN Tong   

  1. (Department of Management Engineering,Naval University of Engineering, Wuhan 430033, Hubei, China)
  • Received:2013-11-11 Revised:2013-11-11 Online:2014-11-03
  • Contact: DI Peng E-mail:dipe@tom.com

Abstract: Three repair effects, namely repairing some system and making it as same as the original, imperfect and perfect, are proposed to research the reliability model of multi-state repairable systems with the different repair effects. The operating state is divided into two classes: good and general; the operation and repair times of system are assumed to submit to continuous phase-type distribution. An infinitesimal generator matrix for the Markov transfer among system states is established, and the stationary probability vector is achieved. The proposed model provides the analytic expressions of the stationary availability and failure rate. Finally, the numerical examples are given to illustrate the effectiveness and applicability of model.

Key words: ordnance science and technology, multi-state, reliability, repair effect, phase-type distribution

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