Reliability and availability analysis of a repairable k-out-of-n: G System with R repairmen subject to shut-off rules

Ramin Moghaddass, Ming J. Zuo, Jian Qu

Research output: Contribution to journalArticle

37 Scopus citations


The k-out-of-n : G system is widely used in reliability and maintenance engineering. We consider a general k-out-of-n : G system which has identical components with identical repair time and lifetime distributions. There are R identical repairmen in the system. The shut-off rules of suspended animation, continuous operation, and a mixture of these two are studied. Repair times and lifetimes are assumed to be statistically independent and exponentially distributed (within, and between). We derive new closed form solutions for important performance measures including steady state availability, mean time to system failure, and mean time to first system failure.

Original languageEnglish (US)
Article number5961665
Pages (from-to)658-666
Number of pages9
JournalIEEE Transactions on Reliability
Issue number3
StatePublished - Sep 1 2011
Externally publishedYes



  • Continuous operation
  • k-out-of-n:G system
  • measures of performance
  • shut-off rules
  • suspended animation
  • system availability

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Electrical and Electronic Engineering

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