A Novel Shape-Adjustable Surface and Its Applications in Car Design
A Novel Shape-Adjustable Surface and Its Applications in Car Design
复制标题
一种新型形状可调表面及其在汽车设计中的应用
DOI：
10.3390/app9112339
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发表时间：
2019-06
影响因子：
2.7
通讯作者：
Gao Jing
中科院分区：
文献类型：
--
作者：
Liu Fan;Ji Xiaomin;Hu Gang;Gao Jing
根据Coons曲面片的构造模式，提出了一种新的参数化曲面SQ-Coons曲面。该曲面始终插值到边界曲线，其形状细节可以由CE-Bézier基函数中的形状参数控制，适合计算机辅助设计（CAD）中的造型设计。为了在汽车设计中发挥其几何优势，根据汽车的常见特征，建立了基于特征线的车身CAD简化模板。该模板完全由SQ-Coons曲面构建，因此整体风格和细节形状都可以通过每个曲面的控制点和形状参数进行修改。通过对50个商用车车型的曲率分析，提出了一套约束形状参数范围的方法。在此基础上，作为实例，以一个模型中发动机罩曲面的四个形状参数为变量，对车身形状进行优化，以达到计算流体力学（CFD）中尽可能低的气动阻力系数。结果表明，新曲面与模型模板相结合的设计方法能够反映不同汽车的造型特点，提高了概念设计阶段的设计和方案调整效率。
In this paper, a new parameterized surface, termed SQ-Coons surface, is proposed according to the build mode of Coons patch. The surface is always interpolated to the boundary curves, and its shape details could be controlled by the shape parameters in CE-Bézier basis functions, which makes it suitable for styling design in computer aided design (CAD). In order to exert its geometric advantages in car design, a simplified body CAD template based on characteristic lines is built according to common vehicle features. The template is built entirely from SQ-Coons surfaces, so that the overall style and detail shapes could all be modified by the control points and shape parameters of each surface. By analyzing the curvature of fifty commercial car types generated through the template and various parameters, a set of methods for constraining the range of shape parameters is proposed. On this basis, as an example, the four shape parameters of the hood surface in one model are used as variables to optimize the body shape to achieve the lowest possible aerodynamic drag coefficient in computational fluid dynamics (CFD). The results show that the design method, combining the new surface and the model template, could reflect the modeling characteristics of different cars, and improve the design and scheme adjustment efficiency in the conceptual design stage.
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DOI：
10.1016/j.ergon.2004.10.007
发表时间：
2005-05-01
影响因子：
3.1
作者：
Hsiao, SW;Tsai, HC
通讯作者：
Tsai, HC
影响因子：
2.8
作者：
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通讯作者：
D. E. Aljure;O. Lehmkuhl;I. Rodríguez;A. Oliva
影响因子：
3.6
作者：
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通讯作者：
S. Cheng;M. Tsubokura;T. Nakashima;Y. Okada;T. Nouzawa
DOI：
10.1016/j.jweia.2011.02.001
发表时间：
2011-05
影响因子：
4.8
作者：
S. Cheng;M. Tsubokura;T. Nakashima;T. Nouzawa;Y. Okada
通讯作者：
S. Cheng;M. Tsubokura;T. Nakashima;T. Nouzawa;Y. Okada
DOI：
10.1016/j.aml.2008.03.015
发表时间：
2009-02
期刊：
Appl. Math. Lett.
影响因子：
--
作者：
Xiaocong Han;YiChen Ma;XiLi Huang
通讯作者：
Xiaocong Han;YiChen Ma;XiLi Huang