Journal of Shanghai Jiaotong University ›› 2018, Vol. 52 ›› Issue (3): 318-323.doi: 10.16183/j.cnki.jsjtu.2018.03.010

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Automobile Door Fitting Based on Frenet Frame

HENG Dezheng1,YANG Jun2,LI Zhimin1,JIN Aijun2,JIN Sun1   

  1. 1. Shanghai Key Laboratory of Digital Manufacture for Thin-Walled Structures, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Geely Automotive Research Institute, Hangzhou 311228, China
  • Online:2018-03-28 Published:2018-03-28

Abstract: In order to improve the fitting quality, firstly, contours are extracted from scanning data points to fit Fourier series, then unit tangent and binormal can be got at any point based on Frenet frame of curve theory, and the objective function of fitting quality referencing Hausdorff distance can be constructed. The global optimal transform parameter can be found based on differential evolution. Effectiveness of the method is demonstrated by one practical door-fitting example. Results indicate that the proposed method can significantly improve the fitting consistency and improve automobile dimension quality.

Key words: automobile door-fitting, Fourier series fitting, Frenet frame, Hausdorff distance

CLC Number: