Numberical analysis on the steady-state rolling of load-carrying tire

Many performances of vehicle are related to the dynamic mechanical characteristics of tire, such as control stability, safety of running and braking, dynamics and trafficability characteristics, and so on. A finite element model of steady-state rolling analysis of tire was developed to study the dynamic performance of tire by using ABAQUS software based on the treatment data of the TYSYS software. The regulars of the contract press and contract area with road of tire under three different conditions of traction, rolling and braking were obtained. The effect of friction coefficient on the contact surface of tire with road was studied. The effect of slip angle on the transverse force and aligning torque under different inner presses and loads were also investigated, respectively. Finally, the law of longitudinal force varied with longitudinal slip ratio under different inner presses and loads was analyzed. Results indicated that the contact shear stress increases when the friction coefficient increases; the friction coefficient has little effect on the effective rolling radius of tire; firstly, the transverse force increases greatly when slip angle increases. However, it tends to be invariable when the slip angle is larger than 15°. It is similar to the law of longitudinal force varied with longitudinal slip ratio.