轮胎有效滚动半径与负荷半径特性研究

Research on the Properties of Tire Effective Rolling Radius and Loaded Radius

为分析轮胎有效滚动半径和负荷半径特性,利用均匀设计方法,对不同条件下的有效滚动半径、负荷半径进行了试验研究,结果表明,滚动半径、负荷半径受速度、气压、载荷影响的趋势基本一致,影响程度不同;外倾角、侧偏角对有效滚动半径和负荷半径的影响规律不同;随着胎面磨损的增加,滚动半径和负荷半径均减小。采用偏最小二乘回归方法获得了有效滚动半径和负荷半径的回归方程,验证结果表明,回归方程精度较高。

In order to analyze the properties of tire effective rolling radius and load radius,the uniform design method was used to test the effective rolling radius and loaded radius under different conditions.The results show that the trend of the rolling radius and load radius affected by speed,air pressure and load is basically the same,but the influence degree is different;the influences of camber angle and side slip angle on effective rolling radius and load radius are different;with the increase of tread wear,rolling radius and load radius decrease.Using the partial least square regression method,the regression equations about effective rolling radius and loaded radius are obtained.It is proved that the regression equations have high accuracy.