The Simulation Model of a Sliding Contact
DOI:
https://doi.org/10.17770/etr2013vol2.850Keywords:
brush, slip ring, sliding contact, modelingAbstract
This paper deals with the brush slip ring contact modeling. Approaches the sliding contact problem with the synergy theory. The contact layer is considered using mechanical, electrical and thermal properties. The simulation model includes algorithms of: - generation of microscale contact surface, - approachment of two surfaces, - fritting and breakdown effects of oxide layer, - extracting clusters of conducting area, - calculating constriction resistance using fractal dimensionality, - generation of heat caused by electrical current and mechanical friction, - calculation of integral characteristics. The program implementing the model may be used to optimize the contact materials before time-consuming and expensive tests. Finally discusses the implemented model and its results, problems of verification and validation.Downloads
References
Plokhov I. V. Comprehensive diagnosis and prediction of technical state of nodes moving current collection turbogenerators. // Dissertation for doctor degree — Saint Petersburg, 2001
Plokhov I. V. Cluster model of electrofriction interaction (EFI) // Proceedings of the Pskov Polytechnic Institute. – Saint Petersburg /Pskov: SPbSTU, 1997. #1. P.55-57.
9. Mechanics of sliding contact / V. I. Nellin, N. Ya. Bogatyrev, L. V. Lozhkin and others – Moscow, 1966.
160. Guide to the calculation and design of high-contact parts of electrical apparatus / N. M. Adonyev, V. V. Afanasyev, V. V. Borisov and ohers – Leningrad, 1988.
Holm R. Electric contacts. – Moscow, 1961.
Greenwood J. A. Constriction resistance and the real area of contact. – British Journal of appl. Physics. 1966. V.17.P.1621-163.
