基于FEM与ADAMS的轮胎对整车动态性能的影响

考虑轮胎的材料、几何非线性及轮胎与地面的接触非线性,借助ABAQUS软件建立搬移拖车355/65R15型子午线轮胎的三维有限元模型。轮胎径向刚度仿真计算值与理论估算值结果对比分析验证了该模型的有效性。对轮胎稳态滚动过程中轮胎侧偏、纵向滑移工况进行了仿真分析。在轮胎稳态滚动有限元分析的基础上运用规划求解的方法对轮胎的动力学Pacejka89模型进行参数辨识,并建立基于搬移拖车系列轮胎的不同Pacejka89模型的搬移拖车动力学模型,在相同条件下分析轮胎对搬移拖车整车动态性能的影响,这些研究结果对搬移拖车轮胎的选用及整车动态性能分析提供了一定的参考价值。

Influence of Tire Model on Vehicle Dynamic Characteristics Based on FEM and ADAMS

:Considering nonlinear of tire material, geometry and tire contact with the ground, ABAQUS software are used to establish three-dimensional finite element model of 355/65-R15 radial tire.The validity of the model is vertified by the comparison between the simulation results of tire radial stiffness and the theoretical result.In the process of tire steady state rolling, conditions include tire cornering,tire longitudinal slip are simulated and analyzed. On the basis of tire steady-state rolling finite element analysis, the parameter identification of tire dynamic Pacejka89 model is carried out by Excel Solver. Dynamic model of aircraft trailer is established with different Pacejka89 model. The influence of the tire on the dynamic performance of aircraft trailer is analyzed under the same conditions .It provides some value for tire selection and dynamic performance analysis of the vehicle.