CATIA的FSC赛车设计车架的设计与分析

摘要车架有着承载和支撑其他零部件以及承受传递力与力矩的重要作用，车架的强度和刚度影响着汽车的整车性能，对车架结构的分析是一项重要的工作。由于车架的形状复杂，用传统的力学分析方法对车架进行力学分析将消耗大量的时间及资源。所以本课题借助计算机有限元软件来分析车架性能。
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 CATIA的FSC赛车设计车架的设计与分析:http://www.751com.cn/jixie/lunwen_15314.html