基于Abaqus仿真平台的转向节虚拟冲击试验

Steering Knuckle Virtual Impact Test Based on Abaqus Platform

基于有限元理论实现了转向节承受侧向载荷冲击的能力分析和模拟。首先确定了侧向冲击的试验方案,使用三维制图软件UG绘制三维模型。然后按照试验工况建立有限元模型,设置材料参数、边界条件以及载荷。最终得到了转向节在冲击工况下的应力分布,以及各冲击质量下的冲击设备最大位移,转向节上的最大应力和转向节上的最大位移,发现当冲击设备质量达到320 kg时转向节上的应力超过材料的屈服极限。

The paper realized the analysis and simulation on steering knuckle＇ s bearing capacity of lateral load shock based on finite element （FE） theory. First, the test scheme of lateral impact was determined, an initial design model for a steering knuckle was established by the CAD software Unigraphics （UG）. Then the finite element model was established according to the test conditions, and the material parameters, boundary conditions and loads were set. Finally, It got the stress distribution in shock condition, and the maximum displacement of impact equipment, the maximum stress and displacement of steering knuckle in every impact mass. It is turned out that steering knuckle stress exceeds the yield limit of the material when impact mass is 320 kg.