动车组高压电连接器结构强度分析及验证(上)

Analysis and Verification of Structural Strength for High-voltage Circuit Connector of EMU(Part 1 of 2)

动车组高压电连接器组件较多,组件之间的相互作用对电连接器整体结构强度有一定影响。为保证动车组高压电连接器的可靠性,应用ANSYS Workbench有限元仿真软件计算应力。计算结果表明:高压电连接器所有组件在静态载荷作用下受到的最大应力,均小于其材料屈服强度,整体结构满足强度要求。依据GB/T 21563—2018《轨道交通机车车辆设备冲击和振动试验》要求,对高压电连接器开展振动和冲击仿真试验。仿真试验结果表明:在静态工况下,高压电连接器整体结构满足强度要求;在动态载荷作用下,高压电连接器能够抵御工作环境中振动和冲击应力的影响。

There are more components in the high-voltage circuit connector of the rolling stock,and the interaction between the components has a certain influence on the overall structural strength of the connector.In order to ensure the reliability of the high-voltage circuit connector of EMU,the stresses are calculated by applying ANSYS Workbench finite element simulation software.The calculation results showed that:the maximum stress of all components of the high-voltage circuit connector under static load is less than its material yield strength,and its overall structure meeted the strength requirements.According to the requirements of GB/T 21563—2018 Railway applications-Rolling stock equipment-Shock and vibration tests,vibration and shock simulation tests were conducted on the high-voltage circuit connector.The simulation tests results showed that the overall structure of the high-voltage circuit connector meeted the strength requirements under static conditions;under dynamic load,the high-voltage electrical connector can resist the impact of vibration and shock stress in the working environment.