Provisioning Quantity Determination of Partially Repairable Concurrent Spare Parts under the Availability Limitation

운용가용도제약하에서 일정 비율 수리가능한 동시조달부품의 구매량 결정

In this paper, partially repairable concurrent spare parts requirement determination problem of newly procured equipment systems is considered. “partially repairable” means that a portion of damaged parts can be recover their function and reused after repairs. A mathematical model is derived for making an CSP requirement determination subject to the constraint of satisfying any given operational availability limitation. We assume that the failure of a part follows a Poisson process and the repair time has an exponential distribution. Using the generalized Lagrange multipliers method, the solution procedure is derived.