Research on Drag Torque Prediction Model for the Wet Clutches  

作　　者：胡纪滨 荆崇波 彭增雄 王斌 

机构地区：[1]National Key Laboratory of Vehicular Transmission,Beijing Institute of Technology

出　　处：《Journal of Beijing Institute of Technology》2008年第4期405-409,共5页北京理工大学学报（英文版）

基　　金：Sponsored by the Ministerial Level Advanced Research Foundation(10506024)

摘　　要：Considering the surface tension effect and centrifugal effect, a mathematical model based on Reynolds equation for predicting the drag torque of disengage wet clutches is presented. The model indicates that the equivalent radius is a function of clutch speed and flow rate. The drag torque achieves its peak at a critical speed. Above this speed, drag torque drops due to the shrinking of the oil film. The model also points out that viscosity and flow rate effects on drag torque. Experimental results indicate that the model is reason-able and it performs well for predicting the drag torque peak.Considering the surface tension effect and centrifugal effect, a mathematical model based on Reynolds equation for predicting the drag torque of disengage wet clutches is presented. The model indicates that the equivalent radius is a function of clutch speed and flow rate. The drag torque achieves its peak at a critical speed. Above this speed, drag torque drops due to the shrinking of the oil film. The model also points out that viscosity and flow rate effects on drag torque. Experimental results indicate that the model is reason-able and it performs well for predicting the drag torque peak.

关 键 词：wet clutches drag torque mathematical model surface tension 

分 类 号：TH133.4[机械工程—机械制造及自动化]