Modified Periodic Replacement with Minimal Repair at Failure

摘要

This paper summarizes four models of modified periodic replacement with minimal repair at failures when the scheduled replacement time is specified. If a failure occurs just before the replacement time, then three models are: A) a unit remains as it is until the replacement time comes, B) a unit is replaced by one of spares, C) a unit is replaced by a new unit. If a failure occurs well before replacement time then model D is: a unit is replaced at failure or at time T1. The s-expected costs for each model are obtained and the optimum policies are discussed.