抄録
This paper presents "Discrete Standing Wave Tire Model (DSWT)" that is the experimental modeling method for tires. DSWT consists of a new modal analysis method for cylindrical structures and a wave equation identification technique on the tread surface. First a new experimental modal parameter estimation method to be applied to point symmetric structures is presented. The method decomposes frequency response functions into the components of individual natural modes based upon Fourier transform algorithm in the circumferential direction of spatial domain at first, and then determines the modal parameters using the components of each natural mode. Second "Discrete Standing Wave Tire Model" is presented. In this method, regarding natural modes as roots of wave equation of the tread surface, we identify the parameters of wave equation. By using the solution of identified wave equation, the tire model that can express meticulous deformations of the tread surface is obtained.
