Open AccessExtended SQ-Coons Surface and Its Application on Fairing Automobile Surface Design
Author(s) -
Fan Liu,
Xiaomin Ji,
Jing Gao
Publication year - 2020
Publication title -
mathematical problems in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 62
eISSN - 1026-7077
pISSN - 1024-123X
DOI - 10.1155/2020/4912978
Subject(s) - quadrilateral , parametric surface , surface (topology) , parametric statistics , parametric design , boundary (topology) , set (abstract data type) , parametric model , matching (statistics) , computer science , conceptual design , engineering drawing , algorithm , mathematics , mechanical engineering , engineering , geometry , structural engineering , mathematical analysis , finite element method , statistics , programming language
Aiming at car design, a parametric design method is proposed in this paper. There are two contents in this method, a novel parametric surface, a shape-adjustable automobile styling template, and a design method of integrating the two contents. The surface termed extended SQ-Coons surface constructed in this paper has the advantage of being fine adjusted while always interpolating at the given boundary curves, which is suitable for its application in automobile modeling design. Matching with the surface, a car model template built by multiple quadrilateral surfaces is proposed. The car models built by the template could achieve the parametric adjustability of all modeling features on the premise of maintaining G 1 continuity between subsurfaces. Finally, after the integration of the surface and the template, a whole set of parametric automobile surface modeling design method is proposed. In this method, the overall shape of the car body is determined through multi angle hand drawing, and curve control points, segmentation parameters, and shape parameters are used to adjust the detail modeling. The final results show that the novel surface and template proposed could be used to parametrically establish the vehicle models of various shapes and improve the design efficiency in the conceptual design stage.