低风阻分体式电动汽车造型设计  

Exterior Design Research on Split-body Car with Low-drag for Electric Cars

作　　者：李彦龙[1,2] 谭嘉伟 李启良[2] 王凡 LI Yanlong TANJiawei LI Qiliang WANG Fan(College of Automotive Studies, Tongji University, Shanghai 201304, China Shanghai Automobile Wind Tunnel Center, Tongji University. Shanghai 201804, China)

机构地区：[1]同济大学汽车学院,上海201804 [2]同济大学上海地面交通工具风洞中心,上海201804

出　　处：《同济大学学报（自然科学版）》2017年第9期1359-1365,共7页Journal of Tongji University:Natural Science

基　　金：国家"九七三"重点基础研究发展计划(2011CB711203)

摘　　要：分体式造型是汽车外形设计的全新领域,在造型方面具有突破性的意义,但突出的问题之一是风阻往往比普通汽车更高,因此如何做到低阻化是一个新的课题.以A级车为参考车型级别,建立了分体式低风阻基本造型,并考虑了人机空间等基本实用性因素.之后通过造型不断细化与空气动力学仿真迭代方法,最终获得了风格鲜明的分体式造型,并使其风阻系数C_D仅为0.224 9,达到了预期目标,具有应用与推广价值.Split-body styling, different from uni-body styling, has breakthrough meaning as for car exterior design, however the higher air drag will come up to be a new problem. Based on an A-segment car as reference, a low-drag basic form was built, which was considered with ergonomics so as to make it more practical. Started with the basic form, the design transformed into real car design while keeping the form low- drag through computational fluid dynamics （ CFD ）. Eventually, it resulted in a unique split-body design with CD. the coefficient of drag, being 0. 224 9, which is quite practical and of high value for promotion.

关 键 词：汽车造型设计 分体式车身 低阻造型 

分 类 号：U461.2[机械工程—车辆工程]