电动轿车前独立悬架设计毕业论文+外文翻译.doc

目录 摘要 I Abstract II 第１章 前言 - 1 - 1.1课题背景与设计意义 - 1 - 1.2 研究目的和主要内容 - 2 - 1.3 原型车悬架出现的问题 - 3 - 1.4 本章小结 - 3 - 第2章 麦弗逊式悬架弹簧的校核 - 5 - 2.1 悬架的总体布置方案 - 5 - 2.2 麦弗逊悬架的结构分析 - 6 - 2.3 悬架总体参数的计算 - 7 - 2.4 螺旋弹簧的校核 - 9 - 2.5 本章小结 - 11 - 第3章 螺旋弹簧的优化设计计算 - 12 - 3.1 弹簧的受力变形 - 12 - 3.2 弹簧几何参数的计算 - 12 - 3.3 计算结果的处理 - 14 - 3.4 弹簧限位缓冲块的设计 - 15 - 3.5导向机构尺寸的选择 - 16 - 3.6 本章小结 - 16 - 结论 - 18 - 参考文献 - 19 - 谢辞 - 21 - 译文和原文 - 22 -  摘要 宝芳电动车前悬所使用的是麦弗逊式独立悬架，车型模仿夏利轿车。麦弗逊式独立悬架有着结构简单、紧凑、占用空间小等众多优点，在现代轻型汽车中得到了广泛运用。 本毕业设计要求是根据宝芳电动车某改型车的改型总体方案要求，主要对其前悬架螺旋弹簧进行校准和设计计算。介于宝芳电动车公司的现生产条件，该车型直接运用夏利的悬架，没有进行校对，所以很多部件不一定与该车匹配。为了阐述悬架弹簧的校准与改装过程，说明书分别从设计计算、验证校准、优化设计等方面对宝芳电动车悬架的改装过程进行了介绍。通过对悬架系统弹簧的设计、计算和校核，初步达到介绍悬架设计全过程目的，具有很强的操作性，能够为宝芳电动车车的生产实际提供一定意义上的指导。 关键词　麦弗逊式悬架;设计计算;螺旋弹簧;偏频;刚度  Abstract The front suspension of BaoYa automobile is used McPherson independent suspension，Imitates Xia Li。Because of its characteristics of simple structure, low-cost and space economy, Macpherson suspension has become the most popular independent suspension since its emergence, and it is widely used in automobile especially in cars. The graduate design summarized the design and analysis of the front suspensions the springs of BaoYa automobile in aspects of design, manufacture, simulation analysis and optimization design according to the requirements of vehicle. As a result of the BaoYas current production conditions, its the direct use of models Xiali suspension, no proof. So a lot of components may not match with the car. In order to elaborate modification and the calibration process of the suspensions spring , the validation calibration, optimization design and so on for the conversion process of the suspension are introduced in design specification. Through the spring suspension system design, calculation and check, the initial design to achieve the whole process of introducing the purpose of suspension, has a strong operational and can provide a real sense of guidance for the production of BaoYa electric car. Key words　Ma