基于故障树的目标航天器在轨故障定位

On-Orbit Fault Positioning of Target Spacecraft Based on Fault Tree

针对目标航天器在轨运行时极易发生故障的问题,采用故障树分析方法对目标航天器实施在轨故障定位研究。介绍故障树的基本概念和故障树分析原理,给出在轨故障定位故障树的构建和实施步骤,以某型号卫星电源系统对星上负载的供电故障为例进行验证。结果表明:该方法是可行的,为后续在轨故障检测活动的开展奠定基础。

The faults happened frequently when the target spacecraft is on-orbit. To solve this problem, the positioning technology of the target spacecraft＇s on-orbit fault based in fault tree analytical technique is on research. The basic concept and analytical principle of fault tree are introduced, and the building process of the on-orbit fault tree is presented. The method is verified by an example of the power supply system fault of a certain type satellite. The result show that the method is feasible and the following process of on-orbit fault detection could be implemented.