RESEARCH PAPERS: Power Transmission and Gearing Papers

Analytic Determination of Slip and Efficiencies of Rolling Contact C.V.T.’s With Experimental Verifications

[+] Author and Article Information
J. Modrey

School of Mechanical Engineering, Purdue University, West Lafayette, Ind.

Y. K. Younes

Helwan University, Cairo, Egypt

J. Mech., Trans., and Automation 108(1), 72-76 (Mar 01, 1986) (5 pages) doi:10.1115/1.3260787 History: Received July 10, 1984; Online November 19, 2009


Rolling contact continuously variable transmissions (C.V.T.) transmit forces through a highly viscous spot between rolling-slipping contacts. The mechanics of the spot are characterized by complex elastohydrodynamic conditions and fluid properties only partially determinable at the extreme pressures of operation. A computer simulation of the spot mechanics based on extensions of research in less complex elastohydrodynamic situations was developed. Comparisons with parallel tests on a commercial C. V. T. verify that the simulation described in a good guide to design of this class of transmissions.

Copyright © 1986 by ASME
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