航天电连接器的空间环境效应和失效模式分析  

Analysis of Space Environment Effects and Failure Modes of Aerospace Electrical Connectors

作　　者：高亮[1] 陈文华[1,2] 刘娟[1] 周升俊[3] 卢献彪[3] 

机构地区：[1]浙江大学,杭州310027 [2]浙江理工大学,杭州310018 [3]中国航天时代电子公司八二五厂,杭州310015

出　　处：《中国机械工程》2010年第13期1598-1604,共7页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50745040);国家863高技术研究发展计划资助项目(2007AA04Z409);民用航天科技预研资助项目(B1220062302)

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。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.

关 键 词：电连接器 空间环境 环境效应 失效模式 

分 类 号：TB114.3[理学—概率论与数理统计] V442[理学—数学]