基于CATIA软件的车身造型设计讲解.docx

西安航空学院 本科毕业设计（论文） 题 目： 基于CATIA软件的车身造型设计 学 院： 车辆工程学院 专 业： 交通运输（汽车运用工程方向） 学 号： 1240701160920 学生姓名： 赵洋 指导教师： 刘旭娟 2016年 4 月 30 基于CATIA软件的车身造型设计 摘 要：在汽车工业超过数百年的发展历史中，往往其车身造型设计最具特色、沿袭着一代代经典的传承。汽车作为一种商品，和消费者联系最为紧密，汽车最能直观与消费者互动的莫过于车身外形了。随着年轻消费者的与日俱增，爱上一款车的容颜，才会去了解汽车内饰、动力性能、燃油经济性能等内在配置的可能性大大加强。如今，汽车车身造型设计已经朝着消费者亲睐的方向前进，越来越细致的布局划分也渐渐迎合着各阶层消费者的审美。汽车车身的研发设计水平代表了企业的核心技术环节，它是汽车企业的生命力之源，立足长远之核心。运用三维车身设计软件已经成为现代汽车车身造型的显著特点。 打开CATIA软件的Sketck Tracer模块，导入汽车三视图。打开freestyle模块，用3D 曲线构造对应车身的三维轮廓线，在创成式曲面设计模块中，用曲面桥接、曲面填充、曲面扫掠等命令绘制曲面。在Imagineshape中用sphere命令制作奥迪车标和进气格栅，在机械零部件设计中用凸台命令进行轮胎的绘制。最后，利用倒角、圆角、分割、修剪等功能，完成车身造型后统一应用材料并渲染。 关键词：三视图；填充；桥接曲面；IMA Body design based on CATIA software Abstract:During the automotive industry more than a few hundred years of development history, which is often the most unique body design, followed the classic tradition from generation to generation. Cars as a commodity, and the consumer is most closely linked, most car intuitive interaction with consumers than the shape of the body. With the growing young consumers, fell in love with the face of a car, only to find out the possibility of the internal configuration of the car interior, dynamic performance, fuel economy, performance is greatly enhanced. Today, auto body design has been moving consumer pro-gaze direction, more detailed layout divided gradually cater to all segments of the consumer aesthetic. The R D level of automobile body represents the companys core technical aspects, it is the source of the vitality of the auto companies, based on a long-term core. The use of three-dimensional body design software has become a significant feature of modern automotive styling. Put existing car three views into CATIA software Sketck Tracer modules:Using 3D Curve construct corresponding the contour to obtain a three-dimensional contours of the bodyin freestyle module.Then back to generative surface design, use curved bridge, filling, s