Automobile steering knuckle is an important part of vehicle steering system,and its stiffness has a key influence on the safety and reliability of the steering system.Based on the process of stiffness analysis of automobile steering knuckle,the secondary development of its pre-treatment is carried out.Firstly,the finite element model of steering knuckle is established,and the flow and key steps of static stiffness analysis are summarized.Then,the pre-processing part of Hypermesh software is developed twice,including the assigning of material properties,the establishment of hard point coordinates,the application of load constraints and the establishment of load steps.Finally,the effectiveness of the secondary development is verified through the analysis of the stiffness strength of a new energy vehicle under the braking condition of steering knuckle.The analysis results show that the maximum stress and strain is found at the upper connecting rod of the steering knuckle,the maximum stress is 319.8 MPa and the maximum displacement is 1.376 mm,which can meet the design requirements.Through the secondary development of Hypermesh software,the repetitive labor in the pre-processing process is reduced,and the work efficiency of technicians is improved.Meanwhile,the research and development cost of automobile steering knuckle is reduced,and the research and development cycle is shortened.
关键词
汽车转向节/刚强度分析/CAE仿真/Hypermesh二次开发
Key words
automobile steering knuckle/stiffness strength analysis/CAE simulation/secondary development of Hypermesh
维普
万方数据