A computer aided design method for car form and its application based on shape parameters

doi:10.1007/s11704-019-9156-3

Front. Comput. Sci.

2020, Vol. 14

Issue (6) : 146703 https://doi.org/10.1007/s11704-019-9156-3

RESEARCH ARTICLE

A computer aided design method for car form and its application based on shape parameters

Fan LIU¹, Xiaomin JI^1,²(

), Gang HU³, Jing GAO¹

¹. School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China
². School of Art and Design, Xi’an University of Technology, Xi’an 710054, China
³. School of Sciences, Xi’an University of Technology, Xi’an 710054, China

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Abstract

In the early design stage, automotive modeling should both meet the requirements of aesthetics and engineering. Therefore, a vehicle CAD (computer aided design) model that can be easily adjusted by feedbacks is necessary. Based on CE-Bézier surface, this paper presents a set of algorithms for parametric segmentation and fairing surface generation in a car model. This model is defined by a simplified automotive template and relevant control points, shape parameters and segmentation parameters, which can be modified to alter the car form efficiently. With this model and the corresponding adjustment method, more than fifty various vehicle models are established in this research according to different parameters. And two methods for calculating similarity index between car models are constructed, which are suitable for brand design trend analysis and modelling design decisionmaking.

Keywords CAD car form design parametric adjustment CE-Bézier surface form similarity

Corresponding Author(s): Xiaomin JI

Just Accepted Date: 11 December 2019 Issue Date: 20 July 2020

Cite this article:

Fan LIU,Xiaomin JI,Gang HU, et al. A computer aided design method for car form and its application based on shape parameters[J]. Front. Comput. Sci., 2020, 14(6): 146703.

URL:

https://academic.hep.com.cn/fcs/EN/10.1007/s11704-019-9156-3
https://academic.hep.com.cn/fcs/EN/Y2020/V14/I6/146703

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