A Study on the Optimum Repair-Ordering Policies for Production Facilities

생산설비(生産設備)의 적정수리(適正修理) 발주정책(發注政策)에 관(関)한 연구(硏究)

Three types of repair-ordering polices for the production facility with r-out-of-n configuration are considered. Policies are characterized by states of the system and two types of lead times ; regular lead time and expedited lead time. Optimum repair-ordering policy is determined by minimizing the cost rate for the system. Optimum policy consists of the type of policies and repair-ordering time. Variations of the optimum policies are observed with respect to variations of lead times and associated ordering costs and downtime cost, respectively.