期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：242
期号：3
页码：1-7
DOI：10.1088/1755-1315/242/3/032044
出版社：IOP Publishing
摘要：As the performance of aluminum alloy material is close to that of steel and the density is much smaller than that of steel, it is widely used in vehicle lightweight construction. In this paper, aluminum alloy 7475 material is applied to the frame of micro-electric commercial vehicle, and the frame model is adopted by Ansys Workbench software to perform finite element analysis of mode analysis, topology optimization, bending stiffness and torsional stiffness. The results show that compared with the steel frame, the mode frequency slightly increases, and the change rate does not exceed 0.5%, and the weight decreases by 64.6%. After topology optimization, the beam reduces the excess material and optimizes the layout, and the frame weight is further reduced by 13%. The bending stiffness and torsional stiffness have reached the pre-design goals, which exceed the target value by 0.9% and 4.72% respectively. A basis is provided for structural optimization and vehicle lightweight.
