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航空学报
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航空学报  2017, Vol. 38 Issue (8): 220936-220936    DOI: 10.7527/S1000-6893.2017.220936
  固体力学与飞行器总体设计 本期目录 | 过刊浏览 | 高级检索 |
振动对电连接器接触性能退化的影响
骆燕燕1, 蔡明1, 于长潮2, 王彪3
1. 河北工业大学 电气工程学院, 天津 300130;
2. 河北省沧州渤海新区供电公司, 沧州 061000;
3. 中国能源建设集团 天津电力设计院有限公司, 天津 300400
Influence of vibration on contact performance degradation of electrical connectors
LUO Yanyan1, CAI Ming1, YU Changchao2, WANG Biao3
1. College of Electrical Engineering, Hebei University of Technology, Tianjin 300130, China;
2. Hebei Province Cangzhou Bohai New District Power Supply Company, Cangzhou 061000, China;
3. Tianjin Electric Power Design Institute Co., Ltd., China Energy Engineering Group, Tianjin 300400, China
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输出:  BibTeX | EndNote (RIS)      
摘要 

长期振动作用下,电连接器插孔易出现应力松弛现象,引起接触性能的退化。针对接触件的结构特点,提出了一种接触压力监测方法和接触性能退化试验方案,设计了试验电路并进行了试验。试验结果表明:① 接触压力波动程度受振动频率与加速度共同影响,高频振动下,接触压力值波动程度约为低频振动下的3~7倍;但随着振动加速度的增大,低频振动下接触压力波动程度的增幅更为明显;② 随着振动次数的增加,接触压力逐渐减小;振幅越大,接触压力的降幅越明显;试验后插孔槽宽的变化规律与之吻合,且振幅越大,振动累积效应的差异性越明显;但接触电阻无明显的变化趋势。因此,振动引发的插孔应力松弛现象和电连接器接触性能退化的演变极其缓慢,但振动影响的差异性可能会导致突发性偶然失效现象。

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骆燕燕
蔡明
于长潮
王彪
关键词:  电连接器接触压力振动性能退化应力松弛;    
Abstract: 

The jack of the electrical connector is an elastic element, and is easy to show stress relaxation under the effect of long-term vibration, so as to leads to performance degradation of electrical connectors. A contact force monitoring method and contact performance degradation test scheme are proposed, and a circuit is designed for the test. The test result shows that the fluctuation of the contact force is influenced by vibration frequency and acceleration. The contact force fluctuation under high frequency vibration is about 3-7 times of that under low frequency vibration. The contact force fluctuation under low frequency vibration increases more obviously with the increase of vibration acceleration. The contact force decreases with the increase of vibrations. The larger the vibration amplitude is, the more obvious the decrease of the contact force is. The change law of the slot width after the test is consistent with that of the contact force. Moreover, the larger the vibration amplitude is, the more obvious the difference of the slot width variation is. However, the contact resistance has no obvious change tendency. Therefore, although the evolution process of stress relaxation and the contact performance degradation of electrical connectors caused by vibration are extremely slow, the difference of vibration effect can lead to sudden accidental failure of electrical connectors.

Key words:  electrical connector;    contact force;    vibration;    performance degradation;    stress relaxation;
收稿日期:  2016-11-16      修回日期:  2017-02-22           出版日期:  2017-08-15      发布日期:  2017-04-26      期的出版日期:  2017-08-15
ZTFLH:  V242.45  
  TM503+.5  
  TB114.3  
基金资助: 

国家自然科学基金(51107028);河北省电工产品可靠性技术2011协同创新中心项目

通讯作者:  骆燕燕,E-mail:luoyy@hebut.edu.cn    E-mail:  luoyy@hebut.edu.cn
引用本文:    
骆燕燕, 蔡明, 于长潮, 王彪. 振动对电连接器接触性能退化的影响[J]. 航空学报, 2017, 38(8): 220936-220936.
LUO Yanyan, CAI Ming, YU Changchao, WANG Biao. Influence of vibration on contact performance degradation of electrical connectors. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(8): 220936-220936.
链接本文:  
http://hkxb.buaa.edu.cn/CN/10.7527/S1000-6893.2017.220936  或          http://hkxb.buaa.edu.cn/CN/Y2017/V38/I8/220936

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