TY - GEN
T1 - A Finite Element Method to Investigate Electrical Contact Behaviors Considering Asperity Interactions
AU - Zhang, Chao
AU - Ren, Wanbin
AU - Wang, Guotao
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9/30
Y1 - 2020/9/30
N2 - Interactions between neighboring asperities play an important role in evaluating the contact status accurately during the loading process for rough surfaces. In this paper, a three-dimensional finite element model considering interactions between two asperities is built for electrical contact analysis. Based on the simulation, effects of contact radii of a-spots and horizontal spacing between asperities on the contact area and contact resistance are investigated explicitly. The simulation results are compared with the theoretical results ignoring interactions for the same parameters. Furthermore, the critical conditions of considering interactions between asperities are determined. In addition, curve-fit equations for dimensionless contact resistance including the influence of asperity interactions are presented, which could be directly applied to the analysis for the rough surfaces in contact.
AB - Interactions between neighboring asperities play an important role in evaluating the contact status accurately during the loading process for rough surfaces. In this paper, a three-dimensional finite element model considering interactions between two asperities is built for electrical contact analysis. Based on the simulation, effects of contact radii of a-spots and horizontal spacing between asperities on the contact area and contact resistance are investigated explicitly. The simulation results are compared with the theoretical results ignoring interactions for the same parameters. Furthermore, the critical conditions of considering interactions between asperities are determined. In addition, curve-fit equations for dimensionless contact resistance including the influence of asperity interactions are presented, which could be directly applied to the analysis for the rough surfaces in contact.
KW - asperity interactions
KW - contact resistance
KW - electrical contact
KW - finite element method
UR - https://www.scopus.com/pages/publications/85099699001
U2 - 10.1109/HLM49214.2020.9307862
DO - 10.1109/HLM49214.2020.9307862
M3 - 会议稿件
AN - SCOPUS:85099699001
T3 - Electrical Contacts, Proceedings of the Annual Holm Conference on Electrical Contacts
SP - 98
EP - 104
BT - ELECTRICAL CONTACTS 2020 - Proceedings of the 66th IEEE Holm Conference on Electrical Contacts and Intensive Course, HLM 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 66th IEEE Holm Conference on Electrical Contacts and Intensive Course, HLM 2020
Y2 - 30 September 2020 through 7 October 2020
ER -