路面分形和橡胶特性对轮胎滑动摩擦因数的影响  

Effects of road surface fractal and rubber characteristics on tire sliding friction factor

作　　者：马彬[1] 许洪国[1] 刘宏飞[1] 

机构地区：[1]吉林大学交通学院,长春130022

出　　处：《吉林大学学报（工学版）》2013年第2期317-322,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51078167)

摘　　要：对橡胶黏弹性进行了简化计算,建立了结合路面分形特性和胎面橡胶特性的滑动摩擦因数改进模型。与修正的Savkoor滑动摩擦因数进行对比,验证了改进模型的有效性。利用改进模型对不同路况、不同胎面橡胶对滑动摩擦因数随速度变化的影响规律进行了仿真分析。仿真结果表明:改进模型能够将道路特性和胎面橡胶特性有机结合,在避免使用较难获得参数的情况下还能够准确地分析不同滑动速度下不同路面和不同橡胶特性对滑动摩擦系数的影响,为系统分析印迹的显隐特性提供了理论基础。An improved model was built to analyze the effects of road surface fractal feature and rubber friction characteristics on the tire sliding friction factor （SFF）. Simplifying the calculation of the rubber viscoelasticity characteristics, introducing the road surface fractal features and rubber friction characteristics, an improved model was built for the SFF. The comparison with the Savkoor dynamic friction factor verified the effectiveness of the improved model. Using the improved model, simulations were performed to analyze the vehicle speed on tire SFF under different road surfaces and different types of tire. The results showed that the improved SFF model can precisely analyze the effects of road surface feature and tire rubber characteristic on SFF under different sliding speeds, avoid introduction of the parameters which are difficult to obtain, providing a theoretical basis for the systematic analysis of the explicit-implicit tire print features.

关 键 词：交通运输安全工程 轮胎 路面分形 滑动摩擦因数 黏弹性 接触面积 

分 类 号：U465.4[一般工业技术—材料科学与工程]