최소수리 하에서 시간에 의존하는 수리비용 한계치를 이용한 교체정책

초록

In this paper a replacement policy for an equipment under minimal repair is considered based on a repair cost limit. When a failure occurs, the repair cost is estimated. If the estimated repair cost is less than a repair cost limit, a minimal repair is performed. Otherwise, an equipment is replaced with a new one. While most of the previous studies consider a constant repair cost limit, in this study a time dependent repair cost limit is investigated. Experiments show that a new model with time dependent repair cost limit yields better results compared to the model with constant repair cost limit in terms of expected cost per unit time.

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