CA1091轻型货车的前后悬架系统设计说明书

CA1091轻型货车的前后悬架系统设计

随着汽车工业的发展，人们对汽车的乘坐舒适性和安全性的要求逐渐提 高，因此对汽车的

悬架系统和减振器也提出了更高的要求。本次设计题目是 CA1091轻型货车的前后悬架系统设计。

组成，也是钢板弹簧非独立式悬架，然后对主要性能参数进行确定。在前悬 的设计中首先设计了钢板弹簧，包括弹簧断面形状的选择，主要参数的确定, 材料和许用应力的校核，和方案布置的设计；还有减振器的选择。在后悬架 系统设计中主要对主副钢板弹簧进行了设计。

最后采用MATLAB 软件对悬架系统的平顺性进行了编程分析，目的是 判断所设计的悬架

平顺是否满足要求。结论是没有不舒适性。因而对提高汽 车的动力性、经济性和操纵稳定性是有利的

关键词：悬架设计；钢板弹簧；平顺性；货车

Abstract

With the developme nt of the Automobile in dustry, people have bee n promot

ing the requireme nt for the safety and ride comfort quality of the vehicle. As a result, there is a higher dema nd on the suspe nsion and the shock absorber system of the 所设计悬架系统的前悬架采用钢板弹簧非独立式悬架。 L 冃日 后悬疋

由主副簧

vehicle. The title of this thesis is the desig n of front and rear suspe nsion systems of CA1046 truck.

The front suspe nsion system is the leaf spri ng, depe ndent suspe nsion. The rear suspe nsion system con sists of the main spri ng and the helper spri ng and it is also the leaf spri ng, depe ndent suspe nsion. In the procedure of the design we made certain the structural style of the suspe nsion system in the first, the n we made certa in the main parameters. In the desig n of the front suspe nsion we desig ned the leaf spri ng firstly, in cludi ng the selecti on of sect ion shape of leaf spri ng, made certa in the main parameters, material and allowable stress and the desig n of scheme , moreover the desig n of shock absorber. I n the desig n of rear suspe nsion we carried out the desig n of the main spri ng and the helper spri ng.

In the final desig n stage, the MATLAB software is used to an alyze the ride comfort of the suspension system by programming. The aim is whether suspe nsion ride quality meets to the performa nee requireme nt. The results indicate that there is no uncomfortableness for the car on road. Therefore, it is helpful for the dyn amical, econo mical and han dli ng performa nces of the vehicle.

Key words: Suspension Design; Leaf spring; Ride Performanee;

Truck

第1章绪论 (1)

第2章悬架系统的结构与分析 (3)

2.1悬架的功能和组成 (3)

2.2汽车悬架的分类 (3)

2.3悬架的设计要求 (4)

2.4悬架主要参数 (4)

2.4.1 悬架的静挠度fc (4)

2.4.2悬架的动挠度fd (5)

2.4.3悬架弹性特性 (5)

2.4.4后悬架主、副簧刚度的分配 (6)

2.4.5悬架侧倾角刚度及其在前、后轴的分配 (6)

第3 章前后悬架系统的设计 (7)

3.1前悬架系统设计 (7)

3.1.1钢板弹簧的设计 (7)

3.1.2.减振器的选用 (12)

3.2后悬架系统设计 (13)

3.2.1悬架主要参数的确定..................... 错误!未定义书签。

3.2.2弹性元件的设计......................... 错误!未定义书签。

3.2.3钢板弹簧强度验算 (24)

3.2.4钢板弹簧主片的强度核算 (25)

3.2.4钢板弹簧弹簧销的强度核算 (25)

第4章平顺性分析和编程 (26)

4.1平顺性的定义 (26)

4.2平顺性的研究 (26)

4.3平顺性的研究分析 (27)

第5章结论 (33)

参考文献 (34)

致谢 (35)