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Investigation on Mathematical Model of Electric Contact Based on Fractal Geometry

  • Hang Lei
  • , Xiaonan Zhu
  • , Haoran Wang
  • , Junxingxu Chen
  • , Qi Liu
  • , Chunping Niu
  • , Lei Wang
  • , Fei Yang
  • Xi'an Jiaotong University
  • State Grid Corporation of China
  • State Grid Beijing Electric Power Company

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

Electrical contact is an important part of electromechanical equipment. The performance of electrical contact has an important impact on the overall reliability of the system. Based on the study of the topological characteristics of fractal rough surfaces and the elastic–plastic deformation behavior of rough bodies, a theoretical model of electric contact is established by introducing a mathematical description of contact resistance which takes into account the effect of nano-scale. The corresponding relationship among contact area, contact pressure and compression displacement of asperities is obtained. The accuracy of fractal electrical contact model has been greatly improved. It is satisfactory in the field of precision instruments and analysis of the microscopic mechanism of electrical contacts. The model is used to qualitatively analyze the influence of different factors on contact resistance. The results show that the fractal parameters of rough surfaces influence the electrical contact according to some general rules. The mechanism of influencing factors is analyzed.

源语言英语
主期刊名The Proceedings of the 9th Frontier Academic Forum of Electrical Engineering
编辑Weiming Ma, Mingzhe Rong, Fei Yang, Wenfeng Liu, Shuhong Wang, Gengfeng Li
出版商Springer Science and Business Media Deutschland GmbH
617-628
页数12
ISBN(印刷版)9789813366053
DOI
出版状态已出版 - 2021
活动9th Frontier Academic Forum of Electrical Engineering, FAFEE 2020 - Xi’an, 中国
期限: 25 8月 202028 8月 2020

出版系列

姓名Lecture Notes in Electrical Engineering
742 LNEE
ISSN(印刷版)1876-1100
ISSN(电子版)1876-1119

会议

会议9th Frontier Academic Forum of Electrical Engineering, FAFEE 2020
国家/地区中国
Xi’an
时期25/08/2028/08/20

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