汽车扭转梁悬架毕业设计.doc

摘要
悬架是现代汽车上的重要总成之一,它把车架和车轮弹性地连接起来。它的主要作用是传递作用在车轮和车架之间的力和力矩,并且缓和由不平路面传给车身的冲击载荷,以保证汽车能平顺地行驶。
本论文主要对普通轻型轿车的扭转梁式后悬架进行了设计,重点介绍了悬架的基本构成,悬架对汽车平顺性和操作稳定性的影响,并对减振器和弹性元件进行了计算和选型。为了阐述此悬架的设计过程,说明书从设计计算、仿真分析等方面对扭转梁后悬架进行设计。并熟练掌握三维设计软件CATIA的功能,能够从中获取相应的设计参数,诸如硬点位置信息。熟练掌握动力学分析软件ADAMS,通过以上获取的尺寸参数和特性参数建立该车悬架分析模型,并对轿车的外倾角、前束角等进行仿真分析。
关键词:扭转梁悬架设计计算仿真分析
Abstract
Suspension is one of the important assembly on the modern car, it makes the frame and the wheel connected elastically. Its main functions are to transfer the force and moment between the frame and wheel and moderate impact load to the car body caused by uneven road , which ensure the vehicle travel smoothly.
The thesis is mainly to design the twist beam suspension of the ordinary and light car,introduce the basic content of suspension,and the influence of suspension on the vehicle fort and the stability of ,it calculates and selects the shock absorber and elastic order to tell the process of suspension design,this specification design the twist beam suspension from the aspects of calculation and the functionality of CATIA ,three-dimensional design software, and the ability to derive the appropriate design parameters, such as the hard-point location information. Proficiency in dynamic analysis software ADAMS, obtained through the above parameters established dimensions and characteristics of the vehicle suspension model. And then simulate and analyse the camber angle, toe angle, and so on.
Key words: Twist beam suspension Design and calculation Simulation
目录
摘要 I
Abstract II
第1章绪论 1
悬架的重要性 1
悬架的功能 1
悬架的设计要求 2
2
第2章汽车悬架概述 3
3
3
3
3
4
4
第3章悬架对汽车主要性能的影响 5
5
6
8
9
9
10
汽车的侧倾 10
12
&C特性 14
14
第4章悬架主要参数的确定