【摘要】 从卫星对某型电连接器的功能要求和电连接器在轨运行时所面临的空间环境出发,分析了电连接器的空间环境效应和相应的失效模式。首先,分析了电连接器在轨工作时面临的应力;然后,分析了这些应力对电连接器的电性能、密封性能和电磁屏蔽性能的影响,以及由此导致的失效模式。分析表明:几乎每一个空间环境因素都能对电连接器的性能造成影响而导致电连接器失效;电连接器在空间环境综合作用下的失效模式十分复杂,有的空间环境因素会同时导致多种失效,而不同的失效模式之间会形成竞争失效甚至相关失效。更多还原

【Abstract】 Based on the function of electrical connectors in a satellite and the space environment which the electrical connectors confront,a failure mode of the electrical connectors in space environment was analyzed.Firstly,the stress on electrical connectors confronted in orbit was analyzed;then,the effects of the stress on the electrical properties,the sealing properties and the electromagnetic shielding properties and the resulting failure modes were also analyzed.The results show that almost every space environment factor can affect the performance of electrical connector,which leads to electrical connector failures;and that the failure modes of the electrical connectors in space environment are very complex: some of space environment factors may cause a variety of failures,and the competing failure or relevant failure can happen.更多还原