基于多模型的能源组件维修性建模与仿真研究

Research of the Maintenance Modeling and Simulation of Energy Modules Based on Multi-Model

某激光装置能源组件是其关键组件,该组件具有随机劣化失效特点,其部件失效类型多,维修类型和维修策略也比较复杂,现有的基于单一模型和解析方法的系统维修性建模与分析方法难以解决其维修性设计与分析问题。本文采用多模型集成的维修性建模与仿真方法,解决能源组件维修性建模与分析问题。其中,采用故障树模型描述能源组件系统级可靠性,采用SPNAT模型描述各部件的失效过程和维修决策,并基于"Join/Replicate"操作进行模型集成,通过报酬结构定义组件的维修性指标。仿真结果表明,基于多模型集成的维修性建模与仿真方法,是解决能源组件这样的复杂产品维修方案设计与分析的有效途径。

The energy modules of some laser equipment are critical components, which have the char- acteristics of stochastic deteriorating failure. Because of the multiple failure types as well as the mainte- nance methods and strategies, current maintenance modeling and analyzing methods can not deal effec- tively with its maintainability design and analysis problem. The paper settles the energy component ma- intenance analysis problem using multi-model integrated modeling and simulation methods. At first the system level reliability model of the energy module is built using a fault tree, and the component level reliability and maintenance models are provided using the SPNAT formalization. Then the models are in- tegrated by the Join/Replicate operator to form the multi-model of the energy module maintenance, and the maintainability indexes are defined through a reward structure. The simulation results show that the multi-model integrated modeling and simulation method is an efficient way of solving the maintainability design and analysis problems of complex products such as energy modules.