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

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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 decision-making.

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Acknowledgements

This research was funded by the National Natural Science Foundation of China (Grant No. 51875454) and Shaanxi Province Education Department Humanities and Social Sciences Research Plan of China (18JK0538).

Author information

Authors and Affiliations

  1. School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an, 710048, China

    Fan Liu, Xiaomin Ji & Jing Gao

  2. School of Art and Design, Xi’an University of Technology, Xi’an, 710054, China

    Xiaomin Ji

  3. School of Sciences, Xi’an University of Technology, Xi’an, 710054, China

    Gang Hu

Authors
  1. Fan Liu
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  2. Xiaomin Ji
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  3. Gang Hu
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  4. Jing Gao
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Corresponding author

Correspondence to Xiaomin Ji.

Additional information

Fan Liu is a PhD student from Xi’an University of Technology, China. He received the BE degree in 2011 from Shaanxi University of Science & Technology, China, and the ME degree in 2014 from Xi’an University of Technology, China. His research interests include industrial design and CAD.

Xiaomin Ji received the ME and PhD degrees in 1988 and 2001 from Xi’an University of Technology, China. He is a professor and doctoral supervisor at the Xi’an University of Technology, China. His research interests include industrial design, mechanical design theory and CAD/CAM. He is the vice president of the Shaanxi Industrial Design Association, and the member of the Teaching Committee of Industrial Design Discipline of China Machinery Industry Education Association.

Gang Hu received the MS degree in 2008 from Northwestern Polytechnical University, China, and the PhD degree in 2016 from Xi’an University of Technology, China. He is a professor at the Xi’an University of Technology, China. His research interests include computational geometry, CAGD, CAD/CAM, mechanical design theory and graphic image processing. He has published more than 100 papers in academic journals and conferences, of which more than 20 are indexed by SCI and more than 40 are indexed by EI. He is a reviewer of 6 SCI journals including Computer-Aided Design and Applied Mathematics and Computation.

Jing Gao is a PhD student from Xi’an University of Technology, China. She received the BE degree in 2012 from Xi’an Technological University, China, and the ME degree in 2015 from Xi’an University of Technology, China. Her research interests include industrial design, human kinematics and human dynamics.

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Liu, F., Ji, X., Hu, G. et al. A computer aided design method for car form and its application based on shape parameters. Front. Comput. Sci. 14, 146703 (2020). https://doi.org/10.1007/s11704-019-9156-3

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  • DOI: https://doi.org/10.1007/s11704-019-9156-3

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