多锥构型湿式摩擦元件带排扭矩CFD模型研究  

CFD Simulation of Drag Torque of Wet Friction Element with Conical Configuration

作　　者：王延忠[1] 吴向宇[1] 宋玉环 WANG Yanzhong;WU Xiangyu;SONG Yuhuan(School of Mechanical Engineering,Beihang University,Beijing 100191)

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100191

出　　处：《华南理工大学学报（自然科学版）》2018年第10期111-116,140,共7页Journal of South China University of Technology(Natural Science Edition)

基　　金：江西省自然科学基金资助项目(20171ACB20038)~~

摘　　要：多锥构型湿式摩擦元件是机械式变速装置中的一个新的尝试,其非工作状态下的带排扭矩对变速装置的效率有重要的影响.为了评价多锥构型湿式摩擦元件在全油膜状态下的带排扭矩,建立了两种不同结构的湿式摩擦元件带排扭矩CFD分析模型,获得了润滑油流量、油膜厚度、相对转速等条件对多锥摩擦元件间带排扭矩的影响规律.结果表明:相同工况条件下,多锥构型摩擦元件的带排扭矩要大于平面摩擦副;随着流量和相对转速的增加,带排扭矩线性增加;随着间隙的增加,带排扭矩逐渐减小.通过仿真模型和传统模型的对比,验证了模型的可用性.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.

关 键 词：多锥构型 湿式摩擦元件 润滑油流量 带排扭矩 

分 类 号：TH132[机械工程—机械制造及自动化]