THE THERMAL STUDY OF AN AXLE VISCOUS TRANSMISIONS WITH A VARIABLE ROTATIONAL VELOCITY REGIME

摘要

The present paper deals with the analysis of a multidisk viscous coupling whose rotational speed is not constant but has a variation imposed by actual functioning conditions. In the present work we deal with an axle blocking device. When the vehicle runs on a slippery ground and a tire starts loss grip, the relative rotational velocity between the wheels increases, so that finally a tire is motionless and the other spin uselessly. However, if a viscous coupling is mounted on the axle, the relative rotation of the wheels generates a viscous torque between the driving and driven disks, which increases once the relative velocity increases, so that the axle is blocked.