Two simple friction coefficient models,Coulomb friction law and static friction model,are introduced. They are combined with the tire unified brush theory to analyze tire friction problem.

• 介绍了2种简单的摩擦系数模型(库仑摩擦定律、静摩擦力模型),并将其与轮胎统一刷子理论模型结合起来分析轮胎的摩擦问题。