文档介绍：丰田卡罗拉悬架的
结构设计及优化分析
摘要
悬架是汽车的车架(或承载式车身)与车桥(或车轮)之间的一切传力连接装置的总称,其作用是传递作用在车轮和车架之间的力和力扭,并且缓冲由不平路面传给车架或车身的冲击力,并减少由此引起的振动,以保证汽车能平顺地行驶。
本论文以典型经济型乘用车丰田卡罗拉的麦弗逊前悬架和拖曳臂式后悬架为研究对象,以优化悬架关键硬点参数为研究方法,以改善汽车行驶平顺性为研究目的,基于CATIA三维建模,ADAMS运动学分析进行结构设计及优化分析。本文主要工作如下:
首先,本文对汽车悬架做了基本介绍,包括悬架发展历史,种类等,对CATIA及ADAMS软件做了基本介绍;然后对悬架的关键零部件参数进行分析计算,得到CATIA零部件图,进行装配,并且导出悬架的二维图;最后,,分析麦弗逊悬架车轮定位参数随车轮上下跳动过程的变化特性,找出悬架系统中存在的问题,然后利用ADAMS软件进行一系列实验设计,进一步分析悬架结构中关键硬点的改进对车轮定位参数变化的影响。在以上研究基础上,对所建立的麦弗逊悬架模型的关键硬点坐标进行优化分析,得到优化的硬点坐标。
关键词:麦弗逊悬架,拖曳臂式悬架,CATIA三维建模,ADAMS/CAR
Structural design and optimization analysis
of Toyota Corolla suspension
Abstract
Suspension is a general term for all connected devices power transmission car frame (or unibody) and axle (or wheel) between the role and its role is to pass between the wheels and the frame forces and twisting, and buffer passed by the uneven road frame or body impact and reduce vibration caused thereby to ensure the car can travel smoothly.
In this paper, after a typical passenger car Toyota Corolla McPherson front suspension and drag suspension for the study, in order to optimize the suspension hard point parameters for the study of key ways to improve vehicle fort for research purposes, CATIA-based three-dimensional modeling, ADAMS kinematic analysis for structural design and optimization analysis. The main work is as follows:
Firstly, the suspension of the car made a basic introduction, including the suspension of development history, types and their characteristics, such as, for CATIA and ADAMS software to do a basic introduction; then the suspension of key parts for analysis and calculation parameters obtained CATIA zero parts diagram for assembly and export suspension dimensional map; Finally, the use of / CAR module builds suspension kinematics simulation platform for simulation, analysis McPherson suspension wheel alignment parameters with wheels up and down process changes in characteristics to identify probl