查看文章

In order to improve the system performance and minimize the total cost of the system, it is necessary to carry out preventive maintenance on other components when the failure components in the system are repaired. Based on the consideration of the expected system maintenance costs, this paper proposes the cost-based component maintenance priority (CCMP) for binary and multistate systems. This paper focuses on the analysis of multi-state system, studies the optimal maintenance level of components based on the cost importance measures, and analyzes how to select preventive maintenance components under two maintenance strategies. Finally, the preventive maintenance strategy under cost constraint is discussed. Taking an early warning aircraft system as an example, the results show that the preventive maintenance priority based on cost is not only related to the location of components in the system and related costs, but also related to the importance of other components that can be used for preventive maintenance.