ANSYS大学生方程式赛车车架有限元分析
毕业论文关键词：车架 大学生方程式赛车 有限元 力学分析 模态分析
Title The Finite Element Analysis of FSAE Frame
Abstract The frame is complicated structure and the traditional method to mechanics analysis isn’t appropriate. So, this study does the mechanics analysis by finite element with the help of computer. Firstly, according to the ‘FASE of China rules’ (2012-5) and the requirements of commitment, this study makes sure the design scheme and complete structure design. Secondly, put the model into the ANSYS workbench .After doing the Geometric processing and simplification, the frame’s finite element model is established. Thirdly, do mechanics analysis of bending condition, breaking condition and rounding condition to car’s frame. Then get the stress and deformation of the frame and put forward modify opinions. Lastly, the frame will be done modal analysis. According to the above analysis, the frame’s strength and stiffness of frame conditions achieve the requirements, and the resonance phenomenon won't appear. So the frame does well in design and mechanical performance. It is accordance with the requirements of the contest of FAES.
Keywords ：frame the car of FASE finite element, mechanics analysis, modal
1. 绪论 . 1
1.1研究项目背景 1
1.2车架有限元分析现状 2
1.3主要研究内容 3
2.赛车车架结构设计 .. 4
2.1 大学生方程式赛车车架设计要求 . 4
2.2 大学生方程式赛车车架的设计及建模 4
2.2.1车架类型选择 . 4
2.2.2车架材料的选择 .. 5
2.2.3车架焊接方式选择 6
2.2.4车架参数初步设定 7
2.2.5车架的设计 8
2.2.6车架几何模型建模 .. 13
2.3本章小结 13
3.有限元理论及软件介绍 14
3.1有限元的基本理论和方法[ . 14
3.1.1弹性力学假定 14
3.1.2弹性力学问题 15
3.2有限元软件介绍 16
3.3本章小结 17
4. 有限元分析之前处理 . 18
4.1几何处理 18
4.2定义材料属性 .. 19
4.3划分网格 20
5. 有限元分析之力学分析 .. 22
5.1车架约束 22
5.2车架静态载荷计算 . 25
5.3弯曲工况下车架载荷及分析结果 . 26
5.3.1弯曲工况下车架载荷 26