Utilizing Weibull Failure Rates in Repair Limit Analysis for Equipment Replacement/Preventive Maintenance Decisions
作者:
LoveC. E.,
GuoR.,
期刊:
Journal of the Operational Research Society
(Taylor Available online 1996)
卷期:
Volume 47,
issue 11
页码: 1366-1376
ISSN:0160-5682
年代: 1996
DOI:10.1057/jors.1996.172
出版商: Taylor&Francis
关键词: equipment replacement;vehicle replacement;repair limit;preventive maintenance
数据来源: Taylor
摘要:
AbstractRepair limit analysis was originally proposed as a methodology for determining whether to repair or to replace an operating unit. The approach structures the problem as a Markov or semi-Markov decision process in which state-dependent repair limits trigger the replacement decision. Such a basic framework can easily be applied to more general equipment repair/overhaul environments in which typical maintenance condition monitoring information can serve as the overhaul trigger. One unnecessary limitation of repair limit analysis found in the literature is the use of a constant force of mortality within each state of the model. The purpose of this paper is to extend the repair limit analysis by incorporating a changing force of mortality as the unit ages. In this way, the analysis is more flexible in the parameter estimation phase and it is argued here more appealing since a changing (and usually increasing) force of mortality is utilized in equipment maintenance environments.
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