## 半挂汽车车架结构设计及有限元分析+CAD图纸

Semitrailer frame structure design and finite element analysis
Abstract
With the continuous development of the domestic transportation market, semi trailer frame is widely used in the industry of automobile and transportation industry, and become a preferred means of transport of, demand continued to increase, for safety and economic requirements higher, but the traditional design method can not meet the semi-trailer frame development requirements. Traditional semi trailer frame design is mainly by the safety coefficient method, the calculation should force deformation is smaller than the maximum allowable amount of the design, the advantages of this design method is guarantees security of the frame, but ignore the lightweight design of the frame, the frame becomes unwieldy. In this paper, the use of the finite element method for the design of the frame, the method is widely used in China and abroad. The advantages of the frame are the safety of the frame, and can lighten the weight of the frame, and meet the requirements of the lightweight design..
According to the working status and the characteristics of the load, the structure size of the frame is determined, and the appropriate material is selected.. By bending force to determine the size of beam section size, beams and other structural parts, and for longitudinal strength and rigidity check.
Finite element analysis of the frame beam. Firstly, the frame solid model chart is drawn by Pro/E drawing software, and then the model is imported into workbench for analysis.. The basic attribute of solid is the elastic modulus , density , Poisson's ratio of Q235 entity element . By default mesh frame structure; for the frame, mainly on the upper wing surface of the longitudinal beam applied uniform load and the traction plate and the middle axle position constraint conditions are imposed. Analysis shows that the maximum stress in condition 1, the intermediate axle connected with the cross beam at, than the material allowable stress, meet the requirements; maximum deformation in condition 2, maximum deformation meet the design requirements. 半挂汽车车架结构设计及有限元分析+CAD图纸:http://www.lwfree.cn/jixie/20181230/28493.html
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