Browse Publications Technical Papers 2004-40-0010
2004-08-23

Development of 3-D simulation for power transmitting analysis of CVT driven by dry hybrid V-belt 2004-40-0010

A new CVT system driven by a dry hybrid V-belt having a higher transmitting capacity has been investigated for small cars. This paper reports dynamic FEM analysis of the CVT, simulating transmitting efficiency and dynamic strain acting on the belt running at high speeds. We constructed 3-dimensional models for both belt and pulley assembly. It is demonstrated that pulley rigidity and clearance between pulley shaft and movable pulley significantly affect the power transmitting efficiency of the system. Dimensional change of the belt due to permanent deformation of the rubber material also affects the efficiency at high-speed range at the end of belt life. The dynamic strain obtained by the FEM simulated life of the belt in a bench test successfully.

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