子午线轮胎接地问题的三维非线性有限元分析研究  

Three-dimensional nonlinear FEA for static deflection of radial tire

作　　者：赵树高[1] 杨学贵[1] 邓涛[1] 王伟[1] 

机构地区：[1]青岛化工学院高分子科学与工程学院,山东青岛266042

出　　处：《轮胎工业》2001年第11期662-669,共8页Tire Industry

基　　金：山东省自然科学基金重点资助项目(Z99F05)

摘　　要：根据 9.0 0R2 0子午线轮胎的实际结构 ,考虑了轮胎的材料结构非线性、几何非线性、复合材料各向异性以及橡胶材料本身的弹性等特性 ,运用MARC有限元通用程序 ,建立轮胎模型 ,分析了 9.0 0R2 0子午线轮胎静态下与地面的接触问题 ,考察了不同下沉量、内压及静摩擦因数等因素对轮胎静态接地面内应力应变场的影响。结果表明 ,在一定充气压力下 ,随下沉量的增大 ,接地区应力分布由内高外低变为内低外高 ,发生翘曲现象 ;静态接地时的摩擦力分布对称 ,但数值不大 ;随充气压力的升高 ,对应的下沉量下降 ,而在一定的下沉量下 ,接地面内的最大应力随充气压力的升高而增大。A FEA model of 9.00R20 radial tire was built bas ed on the practical sructure of 9.00R20 radial tire by using MARC General Code and taking the material nonlinearity,the geometric nonlinearity,the anisotropy o f composite and the elasticity of rubber itself into account.The model was used to investigate the influence of such factors as deflection,inflation pressure an d static friction coefficient on the static stress/strain distribution in the gr ound-contact area.The results showed that under a certain inflation pressure,th e high stress in the ground-contact area was shifted from the centre to the out erside as the deflection increased;the friction force was small and distributed symmetrically in the static ground-contact area;the deflection decreased as th e inflation pressure increased;and under a certain deflection,the maximum stress in the ground-contact area increased as the inflation pressure increased.

关 键 词：子午线轮胎 接地 下沉量 非线性 有限元分析 

分 类 号：TQ336.1[化学工程—橡胶工业]