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轮胎是汽车的关键部件，轮胎的模态参数反映其本质特性。用模态参数研究轮胎特性是合理的新方法，按照这一思路研究轮胎与地面的静态接触问题（静态对应于零频率），探讨其可行性。平面内轮胎模型被分成胎体和胎冠，由试验模态参数构成的传递函数表示胎体特性；弹性常数表示胎冠特性。将印迹离散为足够小的单元，地面的垂直反力和摩擦力是对轮胎的输入，在给定垂直静载荷下，采用迭代算法确定压力分布和胎体变形，理论的压力分布规律和数值都符合实际，证明可以用试验模态参数研究轮胎力学。
Tires are the key components of a car. The modal parameters of a tire reflect its essential characteristics. It is a reasonable new method to study the characteristics of tire with modal parameters. According to this idea, the static contact problem between tire and ground (static corresponding to zero frequency) is studied and its feasibility is discussed. The in-plane tire model is divided into a carcass and a crown, the transfer function consisting of experimental modal parameters represents the carcass characteristics, and the spring constant indicates the crown characteristics. The print is discretized into small enough units. The vertical reaction force and friction force on the ground are the input to the tire. Under a given vertical static load, the pressure distribution and the deformation of the carcass are determined by an iterative algorithm. The theoretical pressure distribution and numerical values In fact, it is proved that tire mechanics can be studied by using experimental modal parameters.