Thirdly , through analyzing the relation between the temperature and vibration stress and the life of connector , and combining with the theory of probability and statistics , deduce the failure physics equation , and set up a reliability statistical model . laid a foundation for working out electrical connector reliability test plans and treating electrical connectors test data 第三，通过研究环境温度和振动应力与电连接器接触寿命之间的影响关系，并结合概率统计理论，推断出失效物理方程，建立了可靠性统计模型，为电连接器可靠性试验方案的制定和试验数据的统计分析奠定了基础。
While the main factor that affected their were environment vibration and temperature . thirdly , through analyzing the structure and dynamic character of electrical connectors under vibration stress , then researching the failure mechanism of electrical connectors under vibration , attained failure physics equation of electrical connectors 第三，通过对电连接器的结构及电连接器在振动应力作用下的动态特性的分析，探讨了电连接器在振动应力作用下的失效机理，并得出了电连接器在振动应力作用下的失效物理方程。
Thirdly , under temperature stress the connectors " failure mechanism is oxide film thickening , while through analyzing the structure and dynamic character of electrical connectors , the failure mechanism of electrical connectors is fretting under vibration stress . combined these two stresses , their failure mechanism are fretting either , but the velocity of degeneration are accelerating , because temperature stress create more oxide production let connectors failure more easily . in a following part of dissertation we could make reliability model according to these analyzing 第三，分析了电连接器在温度应力下的失效机理；并通过对电连接器的结构及电连接器在振动应力作用下的动态特性进行分析，探讨了电连接器在振动应力作用下的失效机理；通过对电连接器进行环境温度、振动应力综合作用下的失效分析，确定其主要失效机理为微动磨损，结合微动图理论对微动过程进行分析，为电连接器的可靠性建模提供了依据。
First , briefly stated the reliability research developing history and current situation at home and abroad , the reliability test method and developing trends , then statistical analysis method and existing problems , and electrical connector reliability research ' s current situation and existing problems , i second , through analyzing the failure mechanism of electrical connector , and combining with the theory of probability and statistics , set up a reliability statistical model of electrical connector affected upon vibration stress , which is the anti - power law - weibull model , laid a foundation for working out electrical connector reliability test plans and treating electrical connector test data 首先，对国内外可靠性研究的发展历史和现状，可靠性试验的方法和发展趋势，可靠性统计分析方法和存在的问题，以及航天电连接器可靠性研究的现状和存在的问题进行了回顾和评述。其次，通过对电连接器进行失效机理的研究分析，结合概率统计理论，建立了电连接器在振动应力作用下的可靠性统计模型，即逆幂律?威布尔模型，为电连接器可靠性试验方案的制定和试验数据的统计分析奠定了基础。
And combining with the theory of probability and statistics , set up a reliability statistical model of electrical connectors affected on vibration stress , that is reverse power law ? eibull model , laid a foundation for working out electrical connector reliability test plans and treating electrical connectors test data 进一步结合概率统计理论，建立了电连接器在振动应力作用下的可靠性统计模型，即逆幂律?威布尔模型，为电连接器可靠性试验方案的制定和试验数据的统计分析奠定了基础。
In this dissertation , the model y11x - 1419 electrical connector as the object , under temperature and vibration stresses , the failure mechanism has been analyzed , the reliability model has been built . based on above , the reliability test method of electrical connectors has been deeply researched 本文以y11x - 1419圆形电连接器为研究对象，在分析电连接器在环境温度和振动应力作用下的失效机理和建立可靠性模型的基础上对可靠性试验方法和试验验证进行了系统、深入的研究。
Fifthly , using uniformly orthogonal design theory to arrange the four - lever temperatures and four - lever vibration stress , catch an excellent accelerated life text plan , which make the estimate value have the well precision in normal stress lever , at the same time that can reduce the sample number and shorten the test time 第五，运用均匀正交设计对环境温度和振动应力的四个应力水平值进行合理搭配，得到一组较优的加速寿命试验方案，在减少样本数量、缩短试验时间的同时使产品在正常应力水平的寿命估计值具有较高的精度。
