CATIA的FSC赛车设计车架的设计与分析
本文根据《中国大学生方程式汽车规则》以及任务说明书的要求，先设计计算车架尺寸，利用CATIA软件建立车架的三文几何模型，再将几何模型导入到有限元软件Midas中几何处理后建立车架的有限元模型；然后利用Midas软件对车架进行了各个工况下的刚度分析与强度分析。通过分析计算表明：车架的刚度与强度符合任务书的要求；最后对车架进行了模态分析，证明其不会与路面激励以及与赛车的其他部件产生共振。所以此车架设计合理。22624
关键词 车架 大学生方程式 有限元 Midas 结构分析
毕业论文设计说明书（论文）外文摘要
Title The Design and Analysis of the FSC Frame
Abstract
Frame has a bearing and support as well as other components to withstand the forces and moments passed an important role, so the frame strength and stiffness affect vehicle perform ance of the car,on the frame structure analysis is an important job.Due to the complexity of the shape of the frame,using the traditional method of mechanical analysis mechanical analysis of the frame will consume a lot of time and resources.Therefore,to analyze the performance of the task frame using computer finite element software.
Based on the requirements of the "Chinese Formula Student car rules," and mission statement, the first use of CATIA software to build three-dimensional geometric model of the frame, and then establish a geometric model into the frame of the finite element software Midas geometry processing finite element model; then Midas software to use the frame stiffness and strength analysis carried out analysis of various operating conditions. By analyzing the calculations show that: the stiffness and strength of the frame meets the requirements of the mission statement; Finally frame modal analysis carried out, and the road to prove it does not inspire as well as with other parts of the car resonance. Therefore, the rational design of this frame.
Keywords Frame FSC Finite element Midas Structural Analysis
目次
1 绪论 1
1.1引言 1
1.2汽车车架有限元分析的研究现状 1
1.3本课题主要研究内容 2
2 赛车车架结构设计 4
2.1大学生方程式赛车车架的设计要求 4
2.2赛车车架的设计以及三文建模 4
2.3本章小节 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
3.2有限元软件Midas简介 15
3.3本章小节 16
4 车架有限元分析——前处理 17
4.1几何处理 17
4.2定义材料及特性 17
4.3划分网格 19
4.4本章小节 20
5 有限元分析——静态分析 21
5.1静态载荷处理 21
5.2弯曲工况下的载荷及分析结果 22
5.3制动工况下车架有限元分析 25
5.4转弯工况下车架载荷及分析结果 28
5.5本章小结 31
6 有限元分析——模态分析 32