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 maintenance(CBM)execution, 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.%针对当前设备维修策略选择主要依据人工经验或故障后果严重程度的不足,从产品生产过程涉及的多个设备维修问题出发,提出一种定量评估基于状态维修(CBM)策略效益的方法.利用离散事件仿真模拟整个生产过程,根据预测的设备故障时间分布和故障设备的维修时间构建维修策略效益评估的基本框架.以某个加工生产线为应用对象,使用ExtendSim可视化仿真软件包建立生产线的仿真模型,按照维修策略效益评估流程设计三种应用案例,评估事后维修、定期维修和基于状态维修产生的效益,结果表明,基于状态维修策略产生的效益最大,从而验证该评估方法的可行性,可为工程实际中最优维修策略的选择提供依据.
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