多锥构型湿式摩擦元件带排扭矩CFD模型研究

Wet friction element with conical configuration is a new attempt in mechanical transmission. The drag torque exerts an important influence on the efficiency of the transmission. In order to study the drag torque of wet friction element with conical configuration under the lubrication condition of full oil-film, two CFD models with di-fferent geometric parameters are established. The effects of lubrication flow rate, oil film thickness, and relative rotating speed on drag torque are obtained. The results show that the drag torque value of friction plate with conical configuration is bigger than that of plane friction plate, the drag torque increases linearly with the rise of the flow rate and relative rotating speed, and the drag torque decreases with the increase of oil film thickness. The CFD si-mulation values and the theoretical values are compared to verify the availability of the simulation model.