Transient dynamic behavior of tire traversing obstacles in full vehicle scenario

Abstract

This paper describes an effective simulation method for studying transient dynamic behavior of tire traversing severe obstacles in full vehicle scenario. First of all, a detailed finite element tire model is developed and validated with the corresponding physical tests. Then, four tire models are assembled with the suspension components to form a full vehicle model. The vehicle modeling strategy is investigated and then applied successfully in vehicle obstacle impact simulations. The comparisons between simulation results with corresponding vehicle test results show the vehicle model has high accuracy in replicating the behavior of vehicle traversing obstacles. Based on this, a specific example of vehicle traversing the comfort obstacle is analyzed. The parametric effects of vehicle speed and obstacle height on tire impact performance are investigated.