Korean Journal of Computational Design and Engineering (한국CDE학회논문집)

Society for Computational Design and Engineering (한국CDE학회)
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Measured Data based Inspection for Unintended Deflections in Automotive Outer Panels

측정 데이터 이용한 자동차 외판 미세굴곡 추적 사례 연구

  • 정연찬 (서울과학기술대학교 기계시스템디자인공학과) ;
  • 이상헌 (케이브이테크놀로지) ;
  • 장대순 (아주대학교 산업공학과) ;
  • 박상철 (아주대학교 산업공학과)
  • Received : 2012.11.02
  • Accepted : 2013.03.03
  • Published : 2013.04.02
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Abstract

This paper proposes an approach to detect unintended deflections in an automotive outer panel. Conventionally, the detection of unintended deflections has been performed by experienced works, and it requires much amount of time and efforts. The motivation of this work is to reduce such efforts by providing an automated detection methodology. For the detection of unintended deflections, we make use of the measured data from an optical scanner which can be considered as a Z-map data. The proposed approach consists of four major steps; 1) measured data acquisition for an automotive outer panel, 2) identification of shape features, 3) removal of shape features, and 4) detection of unintended deflections via curvature analysis.

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References

  1. Choi, I. J. and Lee, H. W., 1997, Efficient Generation of Reflection Lines to Evaluate Car Body Surfaces, Transactions of the Society of CAD/CAM Engineers, 2(3), pp. 133-141.
  2. Chung, Y. C. and Lee, S. H., 2006, A Case Study of Digital Inspection of Subtle Dents on Automotive Outer Panels, 2006 Proceedings of the Society of CAD/CAM Engineers Conference, South Korea, pp. 499-504.
  3. Choi, B. K. and Jerard, R. B. 1998, Sculptured Surface Machining, Kluwer.
  4. Eichhorn, A., Girimonte, D., Klose, A. and Kruse, R., 2005, Soft Computing for Automated Surface Quality Analysis of Exterior Car Body Panels, Applied Soft Computing, 5, pp. 301-313. https://doi.org/10.1016/j.asoc.2004.08.002
  5. Hoscheck, J., 1984, Detecting Region with Undesirable Curvature, Computer Aided Geometry Design, 1, pp. 183-192. https://doi.org/10.1016/0167-8396(84)90030-X
  6. Pottmann, H., 1989, Visualization Curvature Discontinuities of Free-form Surfaces, Proceedings of Eurographics 89 Conference, pp. 529-536.
  7. Park, C. D., Chung, W. J. and Kim, B. M., 2006, A Numerical and Experimental Study of Surface Deflections in Automobile Exterior Panels, Journal of the Korean Society for Precision Engineering, 23(9), pp. 134-141.
  8. Choi, B. K. 1991, Surface Modeling for CAD/ CAM, Elsevier.
  9. Corneliu Rusu, Marius Tico, Pauli Kuosmanen, Edward J. Delp, 2003, Classical Geometrical Approach to Circle Fitting - Review and New Developments, Journal of Electronic Imaging 12(1), 179-193. https://doi.org/10.1117/1.1525792
  10. Kasa, I., 1976, A Circle Fitting Procedure and Its Error Analysis, IEEE Trans. Instrum. Meas., 25, pp. 8-14.