Research on benefit evaluation from CBM executionoriented to production process
面向生产过程的CBM策略效益评估方法研究

The maintenance strategy selection based on personal experience or failure consequence severity had some disadvantages. However, maintenance decision making for multiple equipments was inevitable in industrial production process. In order to obtain the quantitative benefit from condition based maintenanceCBMexecution, this paper presented a general benefit evaluating framework for maintenance strategies application through simulating the production process using discrete event simulation, the predicted failure time distribution and the maintenance down time for failure equipment. For verifying this evaluating framework feasibility, the application object focused on machining production line. Firstly, it established the simulation model for this production line by ExtendSim software. Secondly, according to the evaluating flow of maintenance policy benefit, it designed three cases for evaluating the benefit yielding from corrective maintenance, periodic maintenance and condition based maintenance. Finally, the results from these cases indicate entirely that the benefit from condition based maintenance execution is the maximum. So the option for determining the best maintenance policy in engineering practice can be achieved.