电连接器热特性和振动特性研究机械工程专业论文.docxVIP

广东工业大学硕士学位论文优化后的电连接器进行随机振动分析，与优化前进行对比，获得了较优的设计方案。 广东工业大学硕士学位论文 优化后的电连接器进行随机振动分析，与优化前进行对比，获得了较优的设计方案。 根据Miner线性累计损伤理论、材料的疲劳寿命曲线公式以及随机振动分析的结果 对电连接器的疲劳寿命进行了预测。 关键词： 圆形电源连接器； 热特性； 振动特性； 正交试验； 疲劳寿命 万方数据 ABSTRACTABSTRACT ABSTRACT ABSTRACT Electric connector is fundamental parts in the electronic and electrical system，take on the responsibility of electrical connections and signal transmission．Reliability and security of the electric connector directly determines the equipment’S reliability Temperature and vibration are the two important factors have an effect on the reliability of electric connector contacts．The research obj ect of this paper is ci rcle power connector, mainly used in high reliability requirements of aviation fields．Using the method of theoretical analysis，finite element simulation and experimental to study the contact characteri stics，thermal characteristics and vibration characteristics of the electric connector．Provide a certain reference for thermal and vibration—proof design of the electric connector．The main contents of this paper are as follows Introduce the structure and performance of the electric connector and electrical contact theoretical knowledge．Analysis the failure mechanism of electric connector,it turned out that contact failure iS the main failure mode of electric connector．And the main factor that causing electric connector contact failure is thermogenesis and vibration stress in the contact area． Through the theoretical calculation，the separation force and contact pressure value of electric connector were obtained．Do contact analysis of the contact element，the relationship of insertion force and separation with time and the maximum of insertion force and separation force value were gained in the process of insertion and extraction of the contact element．And compare it、而th the theoretical separation force value．the results show that the difference is small，the theoretical calculation has certain reference value．By using the H