Drag torque prediction model of wet multi-disk shifting clutch

• DOI: 10.3785/j.issn.1008-973x.2011.04.020
• Publication Date: 2011-05-05
• Authors: Zhi‐Gang Zhou
• Keywords: Friction torque; Centrifugal force

A new prediction model was presented to predict the drag torque of a disengaged wet clutch in order analyze formation mechanism multi-disk shifting clutch.A radial velocity oil film deduced according Navier-Stokes equation based on laminar flow viscosity hydrodynamics and considering centrifugal effect cooling lubricating clearance.Then analyzed.Results showed that force caused shrinking film.The equivalent outer radius introduced describe phenomenon,and resolved by utilizing surface tension film.A derived combining with Newton inner friction law.The correctness effectiveness were verified test data traditional model.