40毕业论文41红旗世纪星轿车悬架设计毕业论文.doc

摘 要 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，而悬架对汽车这一方面性能有很大的影响。因此对汽车的悬架系统和减振器也提出了更高的要求。 本次设计主要内容是：红旗世纪星轿车的前、后悬架系统的结构设计，根据当前轿车悬架的发展情况，本设计的轿车前后悬架均采用独立悬架的形式,并且前后悬均采用比较流行的麦弗逊悬架。根据确定的结构选取悬架的自振频率，从而可以计算出悬架的刚度、静挠度和动挠度。采用以上数据计算弹性元件尺寸并且进行应力校核。在设计减振器时，根据阻尼系数和最大卸荷力来计算选取减振器的主要尺寸。然后再依次确定导向机构和横向稳定杆。在所有结构尺寸确定后采用CAXA软件绘制前后悬架的装配图和零件图。 利用Matlab软件对悬架系统的平顺性进行了编程分析, 论证了该系统设计方案的合理正确性，能够满足实际的需要。 关键词：悬架；汽车减振器；平顺性；导向机构 Abstract With the development of the Automobile industry, people have been promoting the requirement for the safety and ride comfort quality of the vehicle. and suspension system influence this aspect of performance a lot. As a result, there is a higher demand on the suspension and the shock absorber system of the vehicle. while the cars suspension system also made high demands. The project mainly includes the design of construction of HongQi front and rear suspension system.Based on the current developments in the car suspension, the design of the car before and after the suspension are used in the form of independent suspension. Before and after the hanging and are used more popular McPherson suspension. According to determine the structure of the selected suspension natural frequency, which can calculate the stiffness of the suspension, static and dynamic deflection deflection. More flexible use of data of components and size of a stress check. In the design of shock absorber, in accordance with the largest damping and unloading of the terms of the main shock absorber selected size. Then bodies were identified and horizontal orientation Wending Gan. when all structure size are determined, using CAXA mapping software in before and after the suspension of the assembly and parts plans. Matlab software programming analysis was used in the ride suspension system.,demonstration of the system design of reasonable accuracy, to meet the actual needs. Key words: Suspension;Automobile shock absorber; Ride comfort ; Guide mechnism 目 录 第1章 绪 论 1 1.1 悬架简介 1 1.2设计要求： 1 第2章 前、后悬架结构的选择 3 2.1独