麦弗逊悬架设计说明书[精选].docx

目录摘要2abastract3第一章 前言4第二章 设计任务5第三章 悬架的结构分析及选型6 3.1悬架的分类6 3.2非独立悬架与独立悬架优缺点分析6 3.3独立悬架结构形式分类及分析7第四章 方案论证8 4.1 悬架结构方案分析8 4.2弹性元件9 4.3减震元件10 4.4传力构件及导向机构10 4.5横向稳定器11第五章 前悬架系统的主要参数的确定及对整车性能的影响11 5.1悬架的静扰度11 5.2悬架的动扰度12 5.3悬架的弹性特性12 5.4前悬架主销侧倾角与后倾角13第六章 弹性元件的计算14 6.1 螺旋弹簧的设计14第七章 减震器机构的类型及主要参数的选择计算15 7.1减震器分类15 7.2相对阻尼系数15 7.3减震器阻尼系数的确定14 7.4最大卸荷力的确定17 7.5减震器工作缸直径的确定18结 论19参考文献20摘 要为了提高汽车行驶的平顺性和稳定性, 本课题进行了产品名称为QF1020货车前后悬架的设计。通过对课题内容的分析, 并结合相关设计手册,进行了方案设计与比较, 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的组成和功用；其次，进行悬架的上各零部件强度的校核；第三，详细考虑各部件之间的连接关系；最后在此基础上进行悬架自然振动频率，悬架静挠度和动挠度以及悬架弹性特性的计算。在分析麦弗逊悬架的组成和作用以及各零部件的尺寸确定的基础上，再利用CAD软件进行二维制图。此次的设计进行了准确的计算和详细的结构分析，为麦弗逊悬架的结构优化提供了依据，从而在运动学和动力学方面提高汽车的性能。关键词：麦弗逊悬架；汽车；设计； ABSTRACTIn order to enhance the automobile smooth running and the stability, This topic has carried on the suspension design of the Product Nameof 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 componentsinthe 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 canenhance the?performance of the McPherson suspension and leaf spring behind suspension.Keyword: McPherson suspension;Motor vehicle; Design;第一章