Optimum block replacement policy for a system operating under a random time horizon

Optimum block replacement policy for a system operating under a random time horizon

In this paper we consider the block replacement policy (BRP) for a system operating over a random time horizon. Under such a policy, a system is replaced by a new one either at failure or at a given time interval. The optimality criterion is the expected total replacements cost. Conditions under whi...

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Veröffentlicht in:Quality and reliability engineering international 2011
Hauptverfasser: Khatab, Abdelhakim, Rezg, Nidhal, Ait-Kadi, Daoud
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Computer Science
Modeling and Simulation
Operations Research
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creator Khatab, Abdelhakim
Rezg, Nidhal
Ait-Kadi, Daoud
description In this paper we consider the block replacement policy (BRP) for a system operating over a random time horizon. Under such a policy, a system is replaced by a new one either at failure or at a given time interval. The optimality criterion is the expected total replacements cost. Conditions under which an optimal replacement period exits are given. It is shown that BRP over an infinite time horizon is obtained as a particular case of the present work. A numerical example is given to illustrate the proposed replacement model.
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subjects Computer Science
Modeling and Simulation
Operations Research
title Optimum block replacement policy for a system operating under a random time horizon
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