学海网

毕业设计-奇瑞微客的前悬架设计，说明书共25页，12204字，附设计图纸、开题报告等
摘 要：悬架是现代汽车上的重要总成之一，它把车架（或车身）与车轴（或轮胎） 弹性地连接起来。它的主要作用是传递作用在车轮和车身之间的一切力和力矩，比如支撑力、制动力和驱动力等，并且缓和由不平路面传给车身的冲击载荷、衰减由此引起的振动、保证乘员的舒适性、减小货物和车辆本身的动载荷。
本文主要讲的是奇瑞微客的前悬架设计，重点从该微客前悬架的对比选型、减振器的计算及选型、弹性元件形式的选择计算及选型和横向稳定杆的设计与侧倾角刚度计算。首先，我把形式不同的悬架的优缺点进行了比较，然后定下了汽车前悬架的形式—麦弗逊式悬架。然后围绕麦弗逊式悬架的主要部件进行设计。先是弹簧的设计计算校核，再是减振器的计算选型，最后是横向稳定杆的计算校核。
关键词：微客 ； 悬架； 麦弗逊式 ；参数设计； 校核
One of the guest front suspension design
Student: Liu Dengpeng
Tutor:Wei Xiaoxiang
(Orient Science and Technology College , Hunan Agricultural University, Changsha 410128)
Abstract: Suspension is one of the important assembles of a modern car, which connects the chassis (or body) and the axle (or tires) flexibly . Mainly, it transfers all the force and moment between the wheels and the body supporting force, such as braking force and the driving forces,ect.. and the uneven road passed by the body to ease the impact load, attenuation resulting vibration, occupant comfort, reduce the goods and the vehicle itself dynamic load.
This paper is about the design of the front suspension chery guest, the key are the comparison of selection of this minibus’s front suspension, calculation and selection of shock absorber, the choice of the form of elastic element calculation and the selection and design of horizontal and lateral stabilizer bar angle stiffness calculation. First, I compared the advantages and disadvantages of different suspensions, and then set the vehicle in the form of front suspension—McPherson suspension. And then design the main components of McPherson suspension . I design and check the spring firstly, then, the calculation is the selection of shock absorbers, calculation and cheek of the stabilizer bar last.
Key words: Micro guest； Suspension ； McPherson ； Parameter design ； Checking
目 录
摘要 i
关键字ii
目录…iii
1 绪论………..1
1.1悬架重要性……..2
1.2悬架的作用及功能………. 3
1.3悬架的设计要求………......4
1.4微客主要参数介绍.... 5
2 悬架的结构分析及选择.6
2.1悬架的分类…......6
2.1.1非独立悬架优缺点分析………...6
2.1.2独立悬架优缺点分析……….......7
2.2独立悬架的分类比较……..7
2.2.1双横臂式悬架结构及特性分析....... 8
2.2.2单横臂式悬架结构及特性分析....... 8
2.2.3单纵臂式悬架结构及特性分析.......8
2.2.4单斜臂式悬架结构及特性分析.....9
2.2.5麦弗逊式悬架结构及特性分析.....9
2.2.6扭转梁随动臂式悬架结构及特性分析...10
2.2.7比较选型.10
3 悬架挠度的计算.11
3.1悬架静挠度的计算………11
3.2悬架动挠度的计算…........11
3.3悬架弹性特征12
4 悬架主要构件的设计计算.13
4.1弹性元件的设计计算…....13
4.1.1弹簧参数的计算选择.13
4.1.2弹簧校核…14
4.2减震器的结构类型与主要参数计算……......15
4.2.1减震器的分类.15
4.2.2减震器主要参数的计算….......15
4.3横向稳定杆参数的确定18
4.3.1横向稳定杆的作用…….....18
4.3.2横向稳定杆侧倾角刚度计算…….........19
4.3.3横向稳定杆参数确定.........19
4.4单横臂长度的确定20
5 结论20
参考文献…21
致谢………22