摘要
针对复杂系统可靠性评估问题,提出了一种基于FTA(故障树)仿真与FMECA(故障模式影响及危害性分析)相结合的逆向FTF综合分析方法,该方法通过故障树的蒙特卡罗仿真计算系统中的重要部件和系统薄弱环节,再利用FMECA有针对性的对重要部件进行详尽分析,提高了可靠性分析的效率,增强了评估的客观性。并以某无人机为例进行了计算和分析,结果表明:该方法对复杂系统可靠性设计具有一定的指导作用和实用价值。
According to reliability assessment of complex system,an inverse FTF comprehensive analysis method based on integrate FTA simulation and FMECA is introduced. In the system,the important components and weaknesses point were calculated by fault tree monte carlo method. Then,the critical components were analyzed detailed by FMECA,improving the efficiency of reliability analysis and enhancing the objectivity of the reliability evaluation. And an example of a UAV was calculated and analyzed. The experimental results show that this method has guiding role and pratical value for Complex System.
出处
《电子器件》
CAS
北大核心
2014年第2期341-344,共4页
Chinese Journal of Electron Devices
