摘要
研究和分析了JF系列某型电连接器的组件端子在随机振动应力作用下的接触失效情况,由组件端子的失效机理及其运动状态构建出理论力学模型,据此提出了组件端子在随机振动作用下的可靠性增长方法;构建JF系列某型电连接器的组件端子插拔力的数学模型并对插拔力进行分析,确定了插拔力的变化趋势及其与各因素的关系,确定了组件端子插拔力的取值范围,得出在取值范围内振动应力作用下组件端子接触失效随插拔力的增加而降低的结论;建立JF系列某型电连接器单针孔接触对的有限元仿真模型,并利用此模型模拟了电连接器接触件的插合与分开过程,得到接触面最大和最小插拔力时的应力分布图及插拔力随时间变化图,所得数据与理论模型计算相吻合,为研究电连接器的接触可靠性提供了依据.
Under random vibration stress,the contact failure of a specific electrical connector for JF series is first investigated.Then,a theoretical mechanical model is established based on the failure mechanism and motional condition.Next,a reliability growth method is proposed to construct analyze the mathematical model of insertion and extraction forces.By determining the variable force trend and relationship among factors,the force value range is obtained.Accordingly,it is found that the failure decreases with increase of insertion and extraction force.Subsequently,a finite element simulation model of single pin-sock pair is postulated to simulate the plug-in and-out process,the stress distribution and time-based force variation figures of maximum and minimum contact surfaces are attained.Consequently,relevant data are coincided with those from theoretical calculation to provide a reference to contact reliability of electrical connectors.
出处
《中国工程机械学报》
北大核心
2015年第6期545-549,共5页
Chinese Journal of Construction Machinery
基金
国家自然科学基金资助项目(51305071)
关键词
电连接器
可靠性
ANSYS仿真
振动应力
electrical connector
reliability
ANSYS simulation
vibration stress
