半主动悬架的优化设计..doc

半主动悬架的优化设计 摘要 伴随着电控技术产生的半主动悬架，它通过对运动参数和结构的不断优化在两种性能之间找到一个最佳的平衡点。本文以某轿车的前麦弗逊悬架系统为参考对象，运用所学的知识对其零部件进行了设计和校核，以CATIA软件为平台简历三维模型，并在一定的基础上生成数学和物理模型，应用ADAMS仿真软件对麦弗逊悬架模型进行运动学仿真分析，分析了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，找出悬架中存在的问题，进一步分析了悬架结构中某些关键点的改进对车轮定位参数的影响，在以上研究基础上，对所建立的悬架模型的关键硬点坐标进行优化分析，得到了优化的硬点坐标，很好的解决了存在的问题。 关键词：麦弗逊悬架；CATIA三维建模；运动仿真；ADAMS;  The Optimization Design Of Semi-Active Suspension System Abstract The semi-active suspension with electronic control technology , it through to the motion parameters and structure of the continuous optimization in finding an optimal balance between the two performance.Based on which a car front Macpherson system ad reference object,using the learned knowledge to has carried on the design and check the parts with CATIA software as the platform resume 3d model,and on the basis of a certain generation mathematical and physical model, using the simulation software of macpherson suspension wheel alignment parameter along with the change of the process of jumping up and down characteristic,find out the problems existing in the suspension,further analyzed the some key points in the structure of a few improvements to the influence of wheel alignment parameters,based on the above research, the suspension model established by the key hard point coordinate optimization analysis, the optimized hard point of coordinates, very good solution to the existing problem. Key words: Macpherson suspension;3D modeling;Motion analysis;ADAMS；  目 录 摘要............................................I Abstract........................................II 第一章 绪论......................................1 引言............................................1 1.1悬架定义及分类................................2 1.2国内外研究现状及发展方向........................4 1.3半主动悬架系统.................................5 1.4研究方法、内容、目标...........................8 麦弗逊悬架概况............................9 2.1 麦弗逊悬架结构特点...............