Sequential imperfect preventive maintenance models with two categories of failure modes

Sequential imperfect preventive maintenance models with two categories of failure modes

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Article ID: iaor20021611
Country: United States
Volume: 48
Issue: 2
Start Page Number: 172
End Page Number: 183
Publication Date: Mar 2001
Journal: Naval Research Logistics
Authors: , ,
Keywords: preventative maintenance
Abstract:

In this paper, we introduce the concept of two categories of failure modes: maintainable failure modes and nonmaintainable failure modes into the modeling of preventive maintenance (PM) activities. The hybrid model proposed by Lin et al. is used to model the effect of a PM activity on the failure rate function of maintainable failure modes. However, PM does not change the hazard rate function of nonmaintainable failure modes. PM is performed at a sequence of intervals. The objective is to determine the optimal PM schedules to minimize the mean cost rate. Numerical examples for Weibull hazard rates are given.

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