轿车前轴摇臂衬套仿生柔性接触表面摩擦特性数值模拟  

Numerical simulation on friction characteristics of rubber bushing with bionic flexible surfaces

作　　者：梁策[1] 李敏[1] 李义[1,2] 梁继才 韩奇钢[1] LIANG Ce;LI Min;LI Yi;LIANG Ji-cai;HAN Qi-gang(College of Materials Science and Engineering,Jilin University,Changchun 130022,China;Chongqing Research Institute,Jilin University,Chongqing 401123,China)

机构地区：[1]吉林大学材料科学与工程学院,长春130022 [2]吉林大学重庆研究院,重庆401123

出　　处：《吉林大学学报（工学版）》2024年第8期2181-2186,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省科技厅重点研发项目(20220201123GX).

摘　　要：基于有限元软件ABAQUS,建立了表面具有类蜣螂头部凸包结构的轿车前轴摇臂衬套的柔性摩擦副摩擦过程的有限元模型,并对其摩擦特性进行验证。通过筛选合适的超弹性本构模型和改变衬套表面凸包结构的尺寸,模拟分析柔性摩擦副径向和扭转方向的力学特性变化规律。结果表明:仿生凸包设计改变了衬套受力时的最大应力和应变位置,降低了橡胶衬套开裂的可能性;仿生衬套表面的接触摩擦力和摩擦系数明显减小,其中Type2模型表面的减阻耐磨效果最好。Based on the finite element software ABAQUS,finite element models of the friction process of a car front axle rocker bushing with flexible surfaces similar to the head surface of the dung beetle are established and their friction characteristics are verified.By selecting an appropriate hyperelastic constitutive model and changing the size of the convex hulls on the surface of the bushing,the variation law of the radial and torsional mechanical properties of the flexible friction pair are analyzed.It turns out that the design of bionic convex hulls changes the maximum stress and strain positions of the bushing under stress,then it can effectively prolong the service life of the rubber bushing surface;the contact friction force and friction coefficients of the bionic bushings surfaces are obviously reduced,the friction reduction and wear resistance of the type2 model surface is the best.

关 键 词：仿生摩擦学 橡胶衬套 仿生设计 有限元模拟 

分 类 号：TG356[金属学及工艺—金属压力加工]