Effect of Tire Stiffness on Three-Axle Truck Dynamic Load Analysis

During transit, the bridge’s or road’s dynamic safety and the vehicle’s own dynamic safety are both greatly impacted by the dynamic loads generated by these modes of transportation. Transport infrastructure can be structurally damaged by loads, leading to significant road and bridge degradation. It also has an impact on driving safety and car component longevity. Tire stiffness is a load-related factor. The author constructs a dynamic model of the vehicle, sets up a system of differential equations, and employs Matlab software to calculate the dynamic load acting on the vehicle when the tire stiffness changes, providing a foundation for analyzing the influence of tire stiffness on dynamic loads acting on three-axle truck. At higher speeds and on roads with lower quality, the evaluation results reveal that the dynamic load increases in direct proportion to the tire stiffness.