中文摘要：

考虑轮胎的几何、材料以及接触非线性,借助ABAQUS非线性有限元软件建立11.00R20载重子午线轮胎轴对称模型和三维有限元模型,计算得到标准工况下胎面的平均磨耗率,并分析气压、负荷以及行驶速度对胎面磨耗的影响。结果表明：标准工况下轮胎每行驶1万km胎面平均磨耗量（单位磨耗量）大约为1.08 mm;实际气压与标准气压的比值过低或过高都会加剧轮胎的磨耗;轮胎负荷低于标准负荷时,轻微加剧胎冠中心处的磨耗;高于标准负荷时胎肩单位磨耗量明显提高;随着行驶速度的提高,胎面单位磨耗量接近线性增大。

英文摘要：

Considering the geometric,material and contact nonlinearities of tires,an axisymmetric model and a three-dimensional model for 11. 00R20 truck radial tire were constructed by using the nonlinear finite element analysis software ABAQUS. The average wear rate of tread was obtained under standard condition.Moreover,the effects of inflation pressure,load and speed on tread wear were discussed. The results showed that,the average tread wear was 1. 08 mm per 10 000 km（i.e. unit abrasion）under standard condition. Higher or lower ratio of actual pressure to standard pressure resulted in the increase of tire wear. When the load was lower than the standard load,it would cause slightly severe wear at the center of crown. On the contrary,the unit abrasion at the shoulder would increase obviously. In addition,with the increase of speed,the unit abrasion of tread increases linearly.