A STOCHASTIC MODEL FOR HYBRID MAINTENANCE POLICIES EVALUATION AND OPTIMIZATION

摘要

We propose a hybrid maintenance policy which combines periodic (age-based or time- based) regulation-based inspections with aperiodic condition-based inspection/replace- ments for a stochastically and gradually deteriorating system. The stationary laws of the deterioration state of the maintained system are derived in order to evaluate the long-run average running cost on an infinite span generated by the proposed combined policy.