Optimal preventive-maintenance warranty policy for repairable products

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Title:	Optimal preventive-maintenance warranty policy for repairable products
Authors:	Yeh, Ruey-huei;羅惠瓊;Lo, Hui-chiung
Contributors:	淡江大學企業管理學系
Keywords:	Maintenance;Warranty;Minimal repair
Date:	2001-10
Issue Date:	2011-09-02 09:55:21 (UTC+8)
Publisher:	Elsevier
Abstract:	This paper investigates preventive-maintenance warranty (PMW) policies for repairable products. When the length of a warranty period is pre-specified, the optimal number of preventive maintenance actions, corresponding maintenance degrees, and the maintenance schedule are jointly determined. We show that there exists a unique optimal policy such that the expected total warranty cost is minimized. Under some reasonable conditions, structural properties of the optimal policy are obtained. Using these properties, an algorithm is provided to efficiently search for the optimal policy. In the case where the failure density is Weibull, a closed form expression of the optimal policy is derived. Finally, the impact of providing preventive maintenance within a warranty period is illustrated through a numerical example.
Relation:	European journal of operational research 134(1), pp.59-69
DOI:	10.1016/S0377-2217(00)00238-1
Appears in Collections:	[Graduate Institute & Department of Business Administration] Journal Article

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