Experimental and theoretical analysis of high-speed radial tire standing waves

Abstract

This study is based on the Tire and Rim Association (TRA) load formula, which introduced the relationship between static load and sinking force of the tire. It also established the mathematical model of the cord tension of any layer of the tire ring beam. A finite element model for a 195/65 R15 radial tire is established with the nonlinear analysis software ABAQUS, based on the tire structure and cord parameters. The calculated value from the TRA formula, simulated value and the experimental result demonstrates high consistency for the value of load sinking. Finite element simulation and experimental results of the load-versus-inflatable-section-width relation were compared, yielding little difference between the results. A similar analysis studies the change in the wavelength of sidewall standing waves at different vehicle velocities during high-speed tire-rolling. The value from simulation and the experimental results demonstrate high consistency, concluding that the wavelength of sidewall standing waves increases with vehicle velocity during high-speed tire-rolling. Thus, the accuracy of the finite element model is verified under both static and dynamic conditions. Based on the finite element model of the impact of change on velocity, load and tire pressure on tire cord stress, it can be concluded that with the increase in the speed and the tire pressure, the stress developed on cord increases and the impact of the load on it is lighter. Establishing the relationship between standing wave phenomenon and tire structural stress, it provides a certain mechanical basis for tire designers.