Numerical film torque modeling of friction pair in hydro-viscous clutchs  

作　　者：姚寿文 崔红伟 王修鹏 冯珊珊 

机构地区：[1]School of Mechanical Engineering,Beijing Institute of Technology [2]Science and Technology on Vehicle Transmission Laboratory,Beijing Institute of Technology [3]Beijing Benz Automotive Co.,Ltd

出　　处：《Journal of Beijing Institute of Technology》2014年第2期165-171,共7页北京理工大学学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(51275039)

摘　　要：A numerical model to predict film torque of hydro-viscous clutch was developed.The model was established with computational fluid dynamics（CFD）.The pressure distribution,velocity of flow and film torque were obtained based on vertical-horizontal grooved plate and radial grooved plate separately.The boundary conditions,such as the relative rotation,the fluid temperature and the oil feeding pressure,were also discussed.The results showed that the film torque of two kinds of grooved plate increased with increasing relative rotation.However,the film torque decreased with increasing fluid temperature and feeding pressure.Meanwhile,the film torque of radial grooved plate was less than vertical-horizontal grooved plate at the same condition.Our study showed that the model can efficiently calculate the film torque with complex geometry parameters and boundary conditions.A numerical model to predict film torque of hydro-viscous clutch was developed.The model was established with computational fluid dynamics（CFD）.The pressure distribution,velocity of flow and film torque were obtained based on vertical-horizontal grooved plate and radial grooved plate separately.The boundary conditions,such as the relative rotation,the fluid temperature and the oil feeding pressure,were also discussed.The results showed that the film torque of two kinds of grooved plate increased with increasing relative rotation.However,the film torque decreased with increasing fluid temperature and feeding pressure.Meanwhile,the film torque of radial grooved plate was less than vertical-horizontal grooved plate at the same condition.Our study showed that the model can efficiently calculate the film torque with complex geometry parameters and boundary conditions.

关 键 词：hydro-viscous clutch（HVC） computational fluid dynamics film torque vertical-horizontal groove radial groove 

分 类 号：TH117[机械工程—机械设计及理论]