TRACTION DRIVE PERFORMANCE PREDICTION FOR THE JOHNSON AND TEVAARWERK TRACTION MODEL

摘要

The recently developed Johnson and Tevaarwerk fluid theology model is used to investigate the traction behavior for typical traction drive contacts. The influence of aspect ratio of the contact and the invariably present spin is investigated. Contacts with a low aspect ratio predict a superior performance in that they show less slip for the same degree of traction. Spin always has a diminishing effect on the traction at the same slip. At sufficiently high spin it is found that the Johnson and Tevaarwerk model may be further simplified to a limiting shear stress model. The conventional analysis by Writs applies here equally well.