某型飞机典型电连接器接插件插拔特性和接触电阻仿真研究

目的仿真分析电连接器的插拔特性和接触电阻的变化规律。方法以海军某型飞机典型电连接器接插件为研究对象,采用ANSYS Workbench静力学模块,对电连接器接插件进行插拔特性分析,采用COMSOL对接触电阻进行仿真。结果开始接触与插针圆形倒角完全进入簧片收口端倒角的中间阶段,插入力达到峰值。插针圆形倒角完全插入插孔簧片倒角,簧片变形量达到最大。最大应力位于簧片根部截面内侧开槽处。接触电阻随接触压力的增大而减小,随表面粗糙高度的增大而增大,随粗糙斜率的增大而减小。结论插拔力、接触压力和形变量在插拔过程中的变化规律由接插件的材料和结构决定,接触压力和表面粗糙度的变化对接触电阻产生了显著的规律性影响。

Simulation Study on Plug and Pull Characteristics and Contact Resistance of Electrical Coupler Connectors on Aircraft

This study aims to simulate and analyze the change rules of the plug and pull characteristics and contact resistance of the electrical coupler.By taking the typical electrical connector of a navy aircraft as the research object,the plug and pull characteristics of the electrical coupler connector were analyzed by ANSYS Workbench statics module,and the contact resistance was simulated by COMSOL.At the middle stage between the initial contact and the circular chamfer of the pin completely entering the chamfer at the end of the spring,the insertion force reaches the peak;the circular chamfer of the pin is completely inserted into the chamfer of the spring,and the spring deformation reaches the maximum.The maximum stress is located at the groove on the inside of the root section of the spring;the contact resistance decreases with the increase of the contact pressure,increases with the increase of the surface roughness height,and decreases with the increase of the rough slope.The change rules of insertion force,contact pressure and deformation during the plug and pull process is determined by the material and structure of the connector.The change of contact pressure and surface roughness has a significant regular effect on the contact resistance.