子午线轮胎胎面花纹磨耗的数值模拟  

Numerical simulation of tread pattern wear of radial tire

作　　者：赵琪 王伟[1] ZHAO Qi;WANG Wei(Key Laboratory of Rubber-Plastics,Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《弹性体》2022年第2期11-17,共7页China Elastomerics

基　　金：国家自然科学基金资助项目(21274072,51273099);绿色轮胎与橡胶协同创新中心开放基金资助项目(2014GTR0005)。

摘　　要：由于充气轮胎几何、材料、接触非线性的复杂性,通过ABAQUS软件的用户子程序UMESHMOTION对11.00R20充气轮胎的磨耗过程进行仿真分析,并用MATLAB编写了Archard磨耗模型计算程序来验证子程序在复杂充气轮胎中的计算准确性。结果表明,11.00R20充气轮胎在其标准工况下行驶1.0×10^(4) km后最大磨耗深度为1.12 mm,根据轮胎磨耗标识换算其行驶里程为1.08×10^(5) km,与轮胎磨耗实际道路测试结果接近。充气轮胎在磨耗后花纹高度降低,接地区域接触压力减小且分布趋于平均,随着行驶里程的增加,单位时间内磨耗深度逐渐减小并趋于稳定。通过轮胎工况对轮胎磨耗深度的影响分析表明,随着滚动速度与垂直载荷的增大,胎面的磨耗深度增加,而轮胎气压过高或过低都会加剧胎面的不均匀磨耗,导致局部过度磨损,影响轮胎行驶里程。Due to the complexity of pneumatic tire with geometry,material and contact nonlinearity,the wear process of 11.00R20 tire was simulated and analyzed by using the subroutine UMESHMOTION of ABAQUS software,and the Archard wear model was adopted by MATLAB program to verify the calculation accuracy of the subroutine in complex pneumatic tire.The results show that the maximum wear depth of 11.00R20 tire is 1.12 mm after traveling 1.0×10^(4) km in its standard working conditions,and the driving distance is 1.08×10^(5) km,according to the tire wear mark,which is close to the actual road test results of this tire wear.After wearing,the height of pattern block decreases,and the contact pressure in the ground area of the tire decreases and the distribution tends to be average.With the increase of driving distance,the wear depth per unit time gradually decreases and tends to be stable.The influence of loadcase on tire wear depth shows that with the increase of rolling speed and vertical load,the wear depth increases,while too high or too low tire pressure will aggravate the uneven tread wear,resulting in local excessive wear,thus affecting the tire driving distance.

关 键 词：子午线轮胎 胎面磨耗 数值模拟 非线性有限元 

分 类 号：U463.341.3[机械工程—车辆工程]