湿式离合器钢片平行度对其热特性影响分析  

Analysis on Thermal Characteristic of Parallelism of Wet Clutch Steel Discs

作　　者：张志刚 梁美林 陈瑶 张本柱 Zhang Zhigang;Liang Meilin;Chen Yao;Zhang Benzhu(Vehicle Engineering Institute, Chongqing University of Technology, Chongqing 400054, China;Chongqing Tsingshan Industrial, Chongqing 402761, China)

机构地区：[1]重庆理工大学车辆工程学院,重庆400054 [2]重庆青山工业技术中心,重庆402761

出　　处：《机械科学与技术》2020年第3期336-343,共8页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51205432);重庆市基础科学与前沿技术研究专项项目(cstc2017jcyjAX0143);重庆市重点产业共性关键技术创新专项项目(cstc2017zdcy-zdzxX0008);重庆市重点产业共性关键技术创新专项项目(cstc2015zdcy-ztzx60013)资助。

摘　　要：针对湿式离合器开发过程中对偶钢片平行度的实际设计要求,运用ABAQUS有限元分析软件建立湿式离合器摩擦副三维有限元模型,研究对偶钢片平行度对其热特性的影响,为对偶钢片平行度的设计要求提供了理论依据。研究结果表明,对偶钢片平行度会改变摩擦副接合面接触压力分布状态,增加对偶钢片径向温度梯度和应力梯度,使其接合表面出现局部高温区;对偶钢片最高温度和最大应力随平行度的增大而增大,当平行度为0.1 mm时,对偶钢片最大等效应力超过其材料的屈服极限,材料会发生塑性变形。Based on the practical design requirements regarding to the parallelism of steel disc during the development of wet clutch,a three-dimensional model of friction pairs on a wet clutch was developed with nonlinear finite element method(FEM)software ABAQUS to study the effect of parallelism of steel discs on its thermal characteristic,providing a theoretical basis for the design requirements of parallelism.The FEM simulation result shows that parallelism of steel disc can change the distribution of contact pressure on friction pairs,improving the radial temperature gradient and stress gradient and making the local high temperature appearing.Improving the parallelism will increase the maximum temperature and stress of steel disc.When the parallelism is 0.1 mm,the maximum equivalent stress of steel disc exceeds its yield strength resulting in plastic deformation.

关 键 词：湿式离合器 平行度 热特性 接触压力 

分 类 号：U463.2[机械工程—车辆工程]