关键词: 多部件系统, 维修策略, 维修优先级, 寿命分布, 竞争式维修

Abstract: o further optimize the configuration of maintenance resources,a non-centralized maintenance strategy based on life distribution was proposed for multi-component systems with components in different maintenance priorities.Different from the traditional centralized maintenance mode relying on a single team,a competitive maintenance model of heterogeneous multi-component system was proposed.In the case of the known component life distribution,the (m,N) maintenance model was proposed.Through considering the different maintenance priorities,repair and preventive maintenance were used for components in high maintenance priority,and group maintenance was used for components in low maintenance priority.With the objective of the whole cycle’s minimum maintenance rate,the parameters were optimized by calculating the failure order statistics of different components,and then the optimal maintenance strategy was obtained.The validity of the maintenance strategy was verified by numerical examples,and the sensitivity of the parameters was analyzed.

Key words: multi-component system, maintenance strategy, maintenance priority, life distribution, competitive maintenance