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Study on Wear Debris Distribution and Performance Degradation in Low Frequency Fretting Wear of Electrical Connector

Yanyan LUO, Jingzhao AN, Jingyuan SU, Zhaopan ZHANG, Yaxin DUAN

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Summary :

Aiming at the problem of the deterioration of the contact performance caused by the wear debris generated during the fretting wear of the electrical connector, low-frequency fretting wear experiments were carried out on the contacts of electrical connectors, the accumulation and distribution of the wear debris were detected by the electrical capacitance tomography technology; the influence of fretting cycles, vibration direction, vibration frequency and vibration amplitude on the accumulation and distribution of wear debris were analyzed; the correlation between characteristic value of wear debris and contact resistance value was studied, and a performance degradation model based on the accumulation and distribution of wear debris was built. The results show that fretting wear and performance degradation are the most serious in axial vibration; the characteristic value of wear debris and contact resistance are positively correlated with the fretting cycles, vibration frequency and vibration amplitude; there is a strong correlation between the sum of characteristic value of wear debris and the contact resistance value; the prediction error of ABC-SVR model of fretting wear performance degradation of electrical connectors constructed by the characteristic value of wear debris is less than 6%. Therefore, the characteristic value of wear debris in contact subareas can quantitatively describe the degree of fretting wear and the process of performance degradation.

Publication
IEICE TRANSACTIONS on Electronics Vol.E106-C No.3 pp.93-102
Publication Date
2023/03/01
Publicized
2022/10/13
Online ISSN
1745-1353
DOI
10.1587/transele.2022ECP5022
Type of Manuscript
PAPER
Category
Electromechanical Devices and Components

Authors

Yanyan LUO
  Hebei University of Technology
Jingzhao AN
  Hebei University of Technology
Jingyuan SU
  Sinopec Tianjin Liquefied Natural Gas Co. Ltd
Zhaopan ZHANG
  State grid shandong electric extrahigh voltage company
Yaxin DUAN
  Handan Engineering construction quality supervision and testing station

Keyword