In this paper a maintenance model is presented for an equipment deteriorating in with time. The equipment periodically produces a batch of parts. Each batch is inspected and, based on the number of defective parts, a decision about the revision of the equipment is made. The goal of the model is to obtain a maintenance policy for the equipment that minimizes the long run average cost. The cost structure includes an operation cost, a revision cost and a defective part cost. To obtain a minimum cost policy, the problem is modeled as a Markov Decision Process with Partial Information. Numerical examples are presented.
maintenance system; revision policy; Markov decision process with partial information
