Journal of Korean Society of Industrial and Systems Engineering (산업경영시스템학회지)
- Volume 15 Issue 26
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- Pages.173-179
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- 1992
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- 2005-0461(pISSN)
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- 2287-7975(eISSN)
A Preventive Maintenance Model Based on the level of item degradation
마모 수준에 의거한 예방 정비 모형
Abstract
This paper is concerned with preventive maintenance model for the items whose failures are dependent on their wear level. The previous maintenance models have used time as their decision variable, but it is not appropriate for the case which have wear dependent processes for their failures. In this paper, we consider an operating item which is under periodic review and which is subject to degradation. The scheduled maintenance (overhaul ) is based on the level of item degradation rather time. A functional equation for the total expected cost over an infinite horizon period is formulated and solved.
Keywords