Fluctuation of contact voltage during fretting phases

Abstract : Due to repetitive micro-displacements, the fretting phenomenon was defined as an electrical and mechanical degradation of the electrical contact interface in telecommunications and more recently in power automotive connectors. Commonly, the electrical degradation was quantified by the increase of contact resistance deduced from the contact voltage. This work aims to address the analysis of the change of contact temperature and the contact voltage during the three successive fretting phases at low and high level contacts. U-shape samples of cooper with a tin protective coating were used and fixed on a vibration system. Indeed, the analysis of the voltage fluctuations in term of level and time appearance was a very useful tool to analyze in-situ the fretting behaviour. Upon the analysis of experimental data, it was found that the first phase corresponds to the phase of sample self-cleaning and to the beginning of the fretting phenomenon; the second phase corresponds to a rapid increasing of the fretting phenomenon. Finally, at the end of the second phase, the fretting phenomenon is stable and the measured contact temperature reached 150 °C. © 2017, Cefin Publishing House. All rights reserved.
Type de document :
Article dans une revue
International Journal of Mechatronics and Applied Mechanics, 2017, 2017 (1), pp.168-173
Liste complète des métadonnées

https://hal-univ-rennes1.archives-ouvertes.fr/hal-01618794
Contributeur : Laurent Jonchère <>
Soumis le : mercredi 18 octobre 2017 - 15:01:43
Dernière modification le : mercredi 16 mai 2018 - 11:23:26

Identifiants

  • HAL Id : hal-01618794, version 1

Collections

Citation

Rochdi El Abdi, S. El Mossouess, N. Benjemâa, Erwann Carvou, L. Doublet. Fluctuation of contact voltage during fretting phases. International Journal of Mechatronics and Applied Mechanics, 2017, 2017 (1), pp.168-173. 〈hal-01618794〉

Partager

Métriques

Consultations de la notice

48