A study of replacement policy for components in a mechanical system

NCUIR > Engineering College > Graduate Institute of Mechanical Engineering > journal & Dissertation > Item 987654321/26985

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Title:	A study of replacement policy for components in a mechanical system
Authors:	Wang,KS;Tsai,YT;Lin,CH
Contributors:	機械工程研究所
Keywords:	PREVENTIVE MAINTENANCE;COST OPTIMIZATION;RELIABILITY
Date:	1997
Issue Date:	2010-06-29 18:04:51 (UTC+8)
Publisher:	中央大學
Abstract:	The degradation of system performance during operation can be improved by different considerations. One of the methods is to take the preventive replacement for the key components. In this paper we propose a methodology of the replacement scheduling of key components in a system. A hierarchical structure for the assessment is built based on the intrinsic and extrinsic characteristics of the system. In the first stage the key components are identified through the consideration of replaceability, failure consequence and life. After that, the priority of replacement is decided by the evaluation of reliability and economics of the selected components. As to the replacement time it is determined according to maximizing the operation profit. The procedures for deciding the priority and replacement time are repeated for the next action, until the replacement profit is less than that without replacement. The suggested approach can be applied to maintain the performance of some profit-oriented mechanical system in a better way, e.g. vehicle, machine tool system, etc. Finally, the replacement scheduling of a hydraulic system is used to demonstrate the proposed methodology. (C) 1998. Published by Elsevier Science Limited.
Relation:	RELIABILITY ENGINEERING & SYSTEM SAFETY
Appears in Collections:	[Graduate Institute of Mechanical Engineering] journal & Dissertation

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