东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (5): 668-673.DOI: 10.12068/j.issn.1005-3026.2018.05.013

• 机械工程 • 上一篇    下一篇

配合误差对电连接器疲劳寿命影响的建模与评估

杨强， 代朋飞， 邱豪， 孙志礼   

  1. (东北大学 机械工程与自动化学院， 辽宁 沈阳110819)
  • 收稿日期:2016-12-12 修回日期:2016-12-12 出版日期:2018-05-15 发布日期:2018-05-25
  • 通讯作者: 杨强
  • 作者简介:杨强(1980-)，男，辽宁鞍山人，东北大学副教授； 孙志礼(1957-)，男，山东巨野人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51205052); 中国博士后科学基金资助项目(2014M561244); 中央高校基本科研业务费专项资金资助项目(N160304008).

Modeling and Evaluation of the Mating Error Influences to the Fatigue Life of a Electrical Connector

YANG Qiang， DAI Peng-fei， QIU Hao， SUN Zhi-li   

  1. School of Mechanical Engineering & Automation，Northeastern University，Shenyang 110819，China.
  • Received:2016-12-12 Revised:2016-12-12 Online:2018-05-15 Published:2018-05-25
  • Contact: YANG Qiang
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摘要： 以某型电连接器通用接触件22#插针插孔为研究对象，基于Brown-Miller修正准则，建立了电连接器接触件材料的应变-寿命方程.应用有限元方法计算了接触件单次插拔过程中的力学性能，基于Fe-Safe软件建立了接触件接触疲劳寿命的仿真计算模型，进而完成了配合误差对电连接器疲劳寿命影响的定量化评估.疲劳寿命分析结果表明:该型电连接器在满足设计寿命条件下，允许的最大位移误差为0.038mm，角度误差为0.621°，复合误差为0.03mm和0.405°.根据分析结果提出了提高电连接器疲劳寿命的具体建议，为该型电连接器接触件制造、装配误差控制和工艺改进提供了理论依据.

关键词: 电连接器, 接触件, 疲劳寿命, 配合误差, 接触性能

Abstract: Taking a certain type 22# pin jack electrical connector as the research object， the strain-life equation of the contact material was established based on the Brown-Miller correction criterion. The mechanical properties of a single insertion and extraction process of the contact part were calculated by finite element method and the contact fatigue life model of the contact part was established based on the Fe-Safe software. Then the quantitative evaluation of the influence of the mating error to the fatigue life of the electrical connector is completed. The results of fatigue life analysis show that the maximum displacement error is 0.038mm， the angle error is 0.621°， and the compound error is 0.03mm and 0.405°under the designed life condition. According to the results， detail fatigue life improving suggests for the electrical connector are proposed， the result provides a theoretical basis for the manufacturing and control of assembling errors and process improvement for the connector.

Key words: electrical connector, contact part, fatigue life, coordination error, contact performance

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