【摘要】 针对电连接器机械结构的可靠性问题及其工作状态中复杂的物理环境,提出了采用多物理场耦合分析方法进行研究,通过采用CST和ANSYS模拟技术,在建立的USB 3.0电连接器模型基础上分析研究了电连接器的电热耦合和热力耦合特性,获取了USB 3.0电连接器的电流密度分布、温度分布及应力-应变分布规律。由电-热-力耦合作用而产生的2个不同温度区间的最大应力值分别达到1 019.4 MPa和1 238.1 MPa。所得结论可为电连接器的结构优化设计及可靠性评估提供参考。更多还原

【Abstract】 The multi-physics coupling analysis method was proposed to solve reliability problems on the mechanical structure of electrical connectors which were working in the complex physical environment.The electro-thermal coupling and thermal-mechanical coupling properties based on USB 3.0electrical connector model were studied by using CST and ANSYS simulation techniques.Meanwhile,the current density distribution,temperature distribution and stress-strain distribution were obtained for USB3.0electrical connector.Moreover,stress is produced by electro-thermal-mechanical coupling effect.The maximum stress values within two different temperature ranges are 1 019.4 MPa and 1 238.1 MPa,respectively.The conclusions can be helpful for structure optimization design and reliability evaluation of electrical connectors.更多还原