Research on Joint Optimization of Condition Inspection Interval and Spare Parts Inventory Strategy

For the devices with condition inspections, the method for joint optimization of inspection interval and spare parts inventory strategy was studied. Firstly, the periodic inspection policy was introduced, based on which the spare parts consumption and provisioning process was analyzed; secondly, the cost structure of maintenance support was decomposed, and the mathematical models for total maintenance support cost were established; thirdly, a simulation method was proposed, by which the periodic inspection interval, spare parts maximum stock level and ordering interval could be optimized jointly; lastly, a numerical example was given, which demonstrated the optimization method and models above.