2021年麦弗逊悬架设计专项说明书.docx

目 录
摘要 2
abastract 3
第一章 序言 4
第二章 设计任务 5
第三章 悬架结构分析及选型 6
6
6
7
第四章 方案论证 8
悬架结构方案分析 8
9
10
10
11
第五章 前悬架系统关键参数确实定及对整车性能影响 11
11
12
12
13
第六章 弹性元件计算 14
螺旋弹簧设计 14
第七章 减震器机构类型及关键参数选择计算 15
15
15
14
17
18
结 论 19
参考文件 20
摘 要
为了提升汽车行驶平顺性和稳定性, 本课题进行了产品名称为QF1020货车前后悬架设计。经过对课题内容分析, 并结合相关设计手册,进行了方案设计和比较, 设计了麦弗逊前悬架, 钢板弹簧后悬架。在设计中，首先，分析了麦弗逊独立悬架组成和功用；其次，进行悬架上各零部件强度校核；第三，具体考虑各部件之间连接关系；最终在此基础上进行悬架自然振动频率，悬架静挠度和动挠度和悬架弹性特征计算。在分析麦弗逊悬架组成和作用和各零部件尺寸确定基础上，再利用CAD软件进行二维制图。此次设计进行了正确计算和具体结构分析，为麦弗逊悬架结构优化提供了依据，从而在运动学和动力学方面提升汽车性能。
关键词：麦弗逊悬架；汽车；设计；
ABSTRACT
In order to enhance the automobile smooth running and the stability, This topic has carried on the suspension design of the Product Name of QF1020 vehicle. Through analyzing the topic content, and combine the correlation design handbook, carried on the plan to design and to compare, the McPherson strut front suspension , the leaf spring behind suspension and trapezium
’s frame are designed. This thesis first analyzes the consists and function of the McPherson suspension in the design, then check the up and down of the suspension, Third, the various components of the link between relations is considered the suspension on the basis of the natural vibration frequency is calculated as well as static suspension deflection and dynamic deflection and elastic characteristics of the suspension terms at last. On the basis of Analysis of the composition and role of the size of the components in the two suspension, then to use CAD software, 2D software mapping .We make an accurate and detailed structural analysis on the design, which provides the reference for optimal design of the suspension. The approach can enh