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中文摘要：
以连接端子、印刷电路板和电镀通孔3种不同材料构成的一种可拔插截面针型汽车电子连接器为研究对象，为满足其在非塑性状态下相互接触实现可反复拔插、稳定低电阻的连接要求。针对连接可靠性设计问题，利用接触动力学理论，对基于设计参数变化的连接器米赛斯应力和接触应力分布进行了解析和灵敏度分析。得到了影响其连接性能的关键设计参数。文中为减少高精度设计参数灵敏度解析的计算时间，提出了将连接端子前、后段形态设计参数分离的解析法，即在接触力学解析过程中，首先以准静态接触方法对连接端子后段（连接形态）设计参数进行接触力学解析，再以动态接触方法对连接端子前段（插拔形态）设计参数进行接触力学解析的方法。其结果对同类微小型可拔插截面针型汽车电子连接器设计参数的确定具有参考价值。
英文摘要：
In order to meet replaceable and stable low-resistance mutual contact connection requirements under aplastic conditions, the paper studied acicular connectors for automobiles that consist of connection terminals, PCBs and plating holes. Facing reliability design problems, the paper used contact dynamic method and analyzed the sensitivity of the Mises stress and contact stress distribution of the connectors on the basis of the changes of design parameters. The key design parameters which affect connection performances are obtained. In order to reduce the time for calculating parameter sensitivity under the condition of high-degree accuracy design, the paper presents a new analytic method, namely in the process of contact mechanical analysis, firstly design parameters of posterior segments （ connection form） of the terminals were analyzed by using static contact mechanical method, and secondly design parameters of anterior segments （pull-in-and out-form）of the terminals were analyzed by using dynamic contact mechanical method. The research is useful for the design of microminature acicular connectors for automobiles.
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