Periodic and sequential preventive maintenance policies. (English) Zbl 0595.60084

Summary: This paper considers periodic and sequential preventive maintenance (PM) policies for the system with minimal repair at failure: the PM is done (i) at periodic times kx and (ii) at constant intervals \(x_ k\) \((k=1,2,...,N)\). The system has a different failure distribution between PM’s and is replaced at the Nth PM. The optimal policies which minimize the expected cost rates are discussed. The optimal x and N of periodic PM and \(\{x_ k\}\) of sequential PM are easily computed in a Weibull distribution case.


60K10 Applications of renewal theory (reliability, demand theory, etc.)
90B25 Reliability, availability, maintenance, inspection in operations research
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