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针对航电计算平台的多态性、动态性的系统特点和不同计算性能的可靠度分析需求,在传统动态故障树分析方法的基础上提出了支持多态性分析的串行门、并行门、条件门,多态冷备件门,设计了一种多态动态故障树分析方法.采用该方法构建了一种典型架构航电计算平台的性能多态动态故障树,基于蒙特卡洛仿真对该多态动态故障树进行了求解.该方法可对航电计算平台不同性能要求下的可靠度进行定量分析,为航电计算平台的可靠性设计提供理论数据支持.
Aiming at the requirements of the avionics computing platform for polymorphism and dynamics and the reliability analysis of different computational performance, based on the traditional dynamic fault tree analysis method, serial doors, parallel doors, Condition door and polymorphic cold spare part door, a dynamic fault tree analysis method based on multi-state dynamic fault tree is designed.A dynamic multi-state fault tree based on Monte Carlo simulation is constructed based on this method, State dynamic fault tree is solved.The method can quantitatively analyze the reliability of the avionics calculation platform under different performance requirements and provide theoretical data support for the reliability design of the avionics calculation platform.