Joint Decision Modeling of Block Inspection Maintenance and Spares Inventory Based on Three-stage Failure Process

As the maintenance event and spare parts inventory are mutually influenced, a joint decision modeling of block inspection maintenance and spare parts inventory based on three-stage failure process is proposed. A system with multiple and identical components is considered. The block inspection maintenance and spares provision policy with constant ordering interval and maximum inventory level are considered. The decision total goal is minimizing the total cost rate through optimizing maintenance relevant variables and spares relevant variables. For the sake of demonstrating the validity of the joint decision model, a numerical example is presented and the optimal decision results are gained.