基于HyperWorks的除雪车车架有限元分析及优化

Finite Element Analysis and Optimization of Snowplow Frame Based on HyperWorks

车架是除雪车重要的零部件,通过UG软件建立车架的三维模型,并导入到HYPERMESH软件中进行有限元分析,得出了车架在弯曲和扭转工况下的应力及位移分布情况。结果显示车架满足弯曲工况下的使用要求,但是在扭转工况下分析的最大应力值765.9 MPa大于材料的屈服强度。对车架结构重新设计,优化后的车架在扭转工况下最大应力值降为546.3 MPa小于材料的屈服强度700 MPa,满足在此工况下的安全使用要求,这对车架研究人员有着重要的意义。

The frame is an important part of the snowplow.The three-dimensional model of the frame is established by the UG software and then imported into the HyperMesh software for finite element analysis.The stress and displacement distribution of the frame under bending and torsion conditions are obtained.The results show that the frame meets the use requirements under bending condition,but the maximum stress value of 765.9 MPa analyzed under the torsion condition is greater than the yield strength of the material.In this paper,the frame structure is redesigned,and the maximum stress value of the optimized frame under torsion condition is 546.3 MPa less than the yield strength of the material 700 MPa,which could meet the requirements of safe use under this condition.It is of great significance to the frame researchers.