根据“弦”胎体理论建立轮胎非稳态侧偏模型

Modelling of Nonsteady State Cornering Properties of Pneumatic Tires Based on the Carcass-String Concept

直接根据印迹变形的几何关系和轮胎着地点瞬时位置的数学关系,得到了轮胎侧向与纵向瞬时变形的关系表达式。以"弦"胎体理论为基础,考虑到胎宽的影响,推导出轮胎非稳态侧偏特性模型。理论模型基本反映试验特征。本文的建模方法将为改善该模型或建立精确模型提供理论基础和科学指导。

The transient deformation expressions of lateral and longitudinal novement of tires are obtained,directly according to the geometric location of the equatorial line and coordinate relationship of the contact points in motion.The tire model of nonsteady state cornering properties is presented,which is based on the string theory of carcass and includes the influence of tire width.Test characteristic can be reflected by the theo- retical frequency response on the whole.It is significant that the ways of modelling will be provided for improving the current model and reforming a more precise one.