Stochastic analysis of preventive maintenance in heterogeneous populations

Ji Hwan Cha, Maxim Finkelstein

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Many different types of preventive maintenance policy have been defined in the literature and implemented in reliability practice. However, almost all models, procedures, and approaches deal only with the case when items come from homogeneous populations. In this paper, we analyze the effect of preventive maintenance on the reliability characteristics of items selected from heterogeneous populations. We discuss a general definition of the conditional failure rate and apply it for describing the reliability of 'heterogeneous items' under preventive maintenance.

Original languageEnglish
Pages (from-to)416-421
Number of pages6
JournalOperations Research Letters
Issue number5
StatePublished - Sep 2012

Bibliographical note

Funding Information:
The authors are very grateful to the referee and the associate editor for helpful comments and constructive suggestions. The work of the first author was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0017338 ). The work of the second author was supported by the NRF (National Research Foundation of South Africa) grant FA2006040700002 .


  • Conditional failure rate
  • Heterogeneous populations
  • Preventive maintenance
  • Virtual age


Dive into the research topics of 'Stochastic analysis of preventive maintenance in heterogeneous populations'. Together they form a unique fingerprint.

Cite this