Title :
Electrical resistance of random rough contacting surfaces using fractal surface modeling
Author :
Singer, Michael T. ; Kshonze, Kristopher
Author_Institution :
Digital Equipment of Canada Ltd., Kanata, Ont., Canada
Abstract :
A method for calculating electrical contact resistance utilizing fractal geometry is described. The base model is a modified version of the model of A. Maujamdar and C.L. Tien (1989), which calculates the bulk resistance of a structure of cumulative multilevel asperities. This updated model is then further extended to include the effect of constriction resistance. Two existing models, given by J.A. Greenwood and J.B.P. Williamson (1966), and M.M. Yovanovich (1981), are reviewed and compared numerically to the proposed model. This comparison shows good agreement among the three approaches.<>
Keywords :
contact resistance; electrical contacts; fractals; bulk resistance; constriction resistance; cumulative multilevel asperities; electrical contact resistance; fractal geometry; fractal surface modeling; random rough contacting surfaces; Contacts; Electric resistance; Fractals; Geometry; Rough surfaces; Surface cleaning; Surface resistance; Surface roughness; Surface texture; Thermal resistance;
Conference_Titel :
Electrical Contacts, 1991. Proceedings of the Thirty-Seventh IEEE Holm Conference on
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0231-1
DOI :
10.1109/HOLM.1991.170806
