中文摘要：

根据湿式离合器分离状态下油液质量流量守恒关系,推导了全油膜状态下径向槽摩擦片和平直摩擦片润滑油流量方程和油膜等效收缩半径方程.基于摩擦片带排转矩的实验数据,引入流量修正系数,建立了双圆弧槽摩擦片润滑油流量表达式和带排转矩模型.仿真实验结果表明：当摩擦界面平均半径处的相对摩滑线速度小于8.83m/s时,双圆弧槽型摩擦片的带排转矩特性接近于径向槽摩擦片;当相对摩滑线速度大于9.39m/s时,双圆弧槽摩擦片的带排转矩特性可以用平直摩擦片评估,且增大槽宽或槽深,均可以有效降低带排转矩.

英文摘要：

According to mass flow balance on disengaged wet clutches,the flow equation and oil film equivalent shrinking radius of radial grooved and flat friction plate were deduced.Based on experimental data of drag torque,the flow calculation and drag torque model of double arc grooved friction plate were obtained,considering the flow correction factor.Results show that when relative sliding velocity on average radius is less than 8.83m/s,drag torque of double arc grooved friction plate is close to that of radial grooved friction plate,when relative sliding velocity is more than 9.39m/s,drag torque of double arc grooved friction plate can be estimated with flat friction plate.Also,increasing groove width or groove depth can decrease drag torque effectively.