摘要汽车行驶过程是随路面和车速而变化的随机振动过程,汽车行驶平顺性和安全性是由悬架系统所决定的,也是悬架系统设计的重要目标。减振器是车辆悬架系统的重要部件之一,目前在汽车上应用最多的双筒液压减振器,它结构简单,工作可靠,性能稳定,成本低。52561
本次设计的是货车悬架用减振器设计及建模,考虑到货车的实际情况,我采用的方案是双筒液压减振器。论文首先介绍汽车液压筒式减振器的结构和工作原理,针对汽车悬架结构特点,确定汽车悬架减振器的结构设计,然后计算出所设计的悬架及零部件的关键参数值,并对主要部件进行校核。根据所得到的结果,绘制了装配图及零件图,建立减振器的三维模型,并且装配。
毕业论文关键词:悬架;货车;减振器;阻尼系数;三维模型
Abstract Vehicle driving process is along with the road surface and the speed and change process of random vibration, automobile riding comfort and safety is determined by the suspension system, is of the important goals of the suspension system design. Shock absorber is one of the important parts of vehicle suspension systems, the application in the car most of the double tube hydraulic shock absorber, it has simple structure, reliable work, stable performance and low cost.
This design is the truck suspension with shock absorber design and modeling, considering the actual situation of freight, I adopt scheme is double tube hydraulic shock absorbers. Paper first introduces structure and working principle of hydraulic shock absorber car, according to the characteristics of automobile suspended frame structure determine the structure design of automotive suspension shock absorber, and then calculate the key parameters of suspension and parts designed by value, and the main components for checking. According to the results, draw the assembly drawing and parts drawing, establishing three dimensional model of shock absorber, and assembly.
Keywords: suspension; Truck; Shock absorber; Damping coefficient; 3 d model。
目 录
第一章 绪论 1
1.1 课题设计的目的及意义 1
1.2 减振器国内外是发展状况 1
1.3 双筒式减振器国内外发展状况和发展趋势 2
1.4 主要工作内容 3
第二章 减振器的类型和工作原理 5
2.1 车身振动模型 5
2.2 液压减振器的分类 5
2.3 减振器的工作原理 6
2.4 双筒液压减振器的工作原理 6
2.4.1 压缩行程 7
2.4.2 伸张行程 8
2.5 本章小结 9
第三章 减振器结构设计和设计计算 10
3.1 减振器与弹簧的安装角度 10
3.2 双筒式减振器的外特性设计 11
3.3 相对阻尼系数 12
3.4 双筒式减振器阻尼系数的确定 13
3.5 最大卸载力F的确定 14
3.6 减振器工作缸设计计算 14
3.6.1 工作缸的内径 货车悬架用减振器设计及建模+CAD图纸:http://www.youerw.com/jixie/lunwen_56486.html