考虑胎体复杂变形的轮胎非稳态侧偏特性理论模型

A Generalized Theoretical Tire Model with Nonsteady State Cornering Characteristics

本文从胎体的一般变形模式出发,根据胎体的侧向弯曲变形及扭转变形计算出胎面的侧向瞬时变形,从而建立了小幅运动时轮胎非稳态侧偏特性理论模型。考虑胎体的复杂变形之后,模型能真实地反映轮胎的力学特征和物理实质;理论模型与试验结果的比较也表明,该模型的精度足以反映轮胎的非稳态试验侧偏特性。该模型可用于轮胎力学和汽车动力学仿真研究、汽车前轮摆振及操纵性等汽车动力学特性方面的研究。

A generalized theoretical tire model with nonsteady state small amplitude cornering characteristics is established, where the complex carcass deformations (including bending and twisting) are taken into consideration. The model reflects the actual dynamic characteristics and real operation state of pneumatic tires in motions. The comparison made with test data shows a high precision of the model. The presented model can be applied to the studies of vehicle dynamics.