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A proactive condition-based maintenance strategy with both perfect and imperfect maintenance actions

Phuc Do, Alexandre Voisin, Eric Levrat and Benoit Iung

Reliability Engineering and System Safety, 2015, vol. 133, issue C, 22-32

Abstract: This paper deals with a proactive condition-based maintenance (CBM) considering both perfect and imperfect maintenance actions for a deteriorating system. Perfect maintenance actions restore completely the system to the ‘as good as new’ state. Their related cost are however often high. The first objective of the paper is to investigate the impacts of imperfect maintenance actions. In fact, both positive and negative impacts are considered. Positive impact means that the imperfect maintenance cost is usually low. Negative impact implies that (i) the imperfect maintenance restores a system to a state between good-as-new and bad-as-old and (ii) each imperfect preventive action may accelerate the speed of the system׳s deterioration process. The second objective of the paper is to propose an adaptive maintenance policy which can help to select optimally maintenance actions (perfect or imperfect actions), if needed, at each inspection time. Moreover, the time interval between two successive inspection points is determined according to a remaining useful life (RUL) based-inspection policy. To illustrate the use of the proposed maintenance policy, a numerical example finally is introduced.

Keywords: Imperfect maintenance; Condition-based maintenance; Remaining useful life; Stochastic process; Optimization (search for similar items in EconPapers)
Date: 2015
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