Lightweight Design for Automotive Door Using Optimizations and Design of Experiments

최적화기법 및 실험계획 법을 이용한 자동차 도어의 경량화 설계

  • Published : 2002.01.01

Abstract

Recently, ULSAB(Ultra Light Steel Auto Body) concept is getting more attention due to various benefits in automotive body design. One of the ULSAB efforts is making a door with TWB(Tailor Welded Blanks). In TWB, two or more patches of steel panels are welded together before stamping process. In this research, domains and thicknesses of the patches in a front door structure are determined by a series of optimization schemes composed of topology, size and shape optimization and DOE(Design of Experiments) scheme. A door is designed to have better performances compared to exiting structure considering static stiffness and natural frequency. The final design is discussed and compared to the existing design.

Keywords

References

  1. 신정규, 송세일, 이권희, 박경진, '구조최적설계기법을 이용한 ULSAB개념의 자동차 도어 설계,' 춘계 전산구조공학회 학술대회논문집, pp.187-194, 2000
  2. Ultra Light Steel Auto Body Final Report 2nd Ed., American Iron and Steel Institute, 1999
  3. 백승준, 구본영, 금영탁, 강수영, 이호기, '합체 박판(Tailored Blank) 성형 기술의 개발 현황과 전망,' 한국자동차공학회논문집, 제19권 제1호, pp.3-10, 1997
  4. 이권희, 박경진, '제한조건이 있는 문제의 이산설계 공간에서의 강건 최적설계,' 대한기계학회논문집, 제22권 제5호, pp.728-737, 1998
  5. GENESIS User's Manual 5.0, VMA Engineering, 1998
  6. M. P. Bendsoe, A. Diaz, N. Kikuchi, 'Topology and Generalized Layout Optimization of Elastic Structure,' Computer Methods in Applied Mechanics and Engineering, pp.197-224, 1998
  7. R. J. Yang, 'Multidiscipline Topology Optimization,' Computer and Structures, Vo1.63, No.6., 1995
  8. E. J. Haug, J. S. Arora, Applied Optimal Design, John Wiley Sons, New York, 1979
  9. J. P. Levia, B. C. Watson, 'Automatic Generation of Basis Vectors for Shape Optimization in the GENESIS Program,' AIAA-98-4852, pp. 1115-1122, 1998
  10. 박성현, 현대 실험 계획법, 민영사, 1991
  11. D. C. Montgomery, 'Design and Analysis of Experiments,' John Wiley Sons, Singapore, 1991