선형증가 위험률을 갖는 시스템의 가용도를 보증하는 보전 정책 및 구간의 결정

Abstract

This paper deals with the determination of the optimal frequency for performing preventive maintenance (PM) actions on a system that exhibits a linearly increasing hazard rate and a constant repair rate. Under a periodic maintenance policy, as long as a predetermined availability is guaranteed, the time interval between PM actions incurring the minimal maintenance cost is selected. Considering both cost and system availability, guidelines for determining the maintenance time interval are presented. Simple numerical examples are also provided to illustrate these ideas.