Multidisciplinary Optimization of Automotive Door

승용차 도어에 대한 다분야통합최적설계

  • Published : 2005.02.01


The automotive door has a large finite element model in analysis and many design requirements such as stiffness, natural frequency, side intrusion, etc. Thus, various related governing equations should be solved for systematic analysis and design. Because each governing equation has different characteristics, it is almost impossible to solve them simultaneously. Instead, they are separately handled and the analysis results are incorporated into the design separately. Currently, the design is usually conducted by trials and errors with engineering intuition in design practice. In this research, MDO methods are proposed to solve the problems that share design variables in disciplines. The idea is from the Gauss-Seidel type method for multi-discipline analysis. The developed methods show stable convergence and the weight of the door is reduced by fifteen percent.


Multidisciplinary Optimization;Automotive Door;Stiffness;Natural Frequency;Side Impact


  1. Sobieszczanski-Sobieski, J., 1982, 'A Linear Decomposition Method for Large Optimization Problems - Blueprint for Development,' NASA TM 83248
  2. Padula, S. L., Alexandrov, N. and Green L. L., 1996, ' MDO Test Suite At NASA Langley Research Center,' AIAA Paper 96-4028, pp. 1-13
  3. Hulme, K F. and Bloebaum, C. L., 1998, 'A Comparison of Solution Strategies for Sinrulated-Based Multidisciplinary Design Optimization,' AIAA Paper 98-4977, pp. 2143-2153
  4. Balling, R. J. and Sobieszczanski-Sobieski, J., 1995, 'An Algorithm for Solving the System-level Problem in Multilevel Optimization,' Structural Optimization, Vol. 9, pp. 168-177
  5. Braun, R. D., 1996, 'Collaborative Optimization : an Architecture for Large Scale Distributed Design,' Ph. D. Dissertation, Standford University
  6. Sobieszczanski-Sobieski, J. and Haftka, R. T., 1996, 'Multidisciplinary Aerospace Design Optimization : Survey of Recent Developments,' AIAA Paper 96-0711, pp. 1-32
  7. Bennett, J., Fenyes, P., Haering, W. and Neal, M., 1998, 'Issues in Industrial Multidisciplinary Optimization,' AIAA paper 98-4727, pp. 1-11
  8. Yukish, M., Bennett, L. and Simpson, T. W., 2000, 'Requirements on MDO Imposed by the Undersea Vehicle Conceptual Design Problern,' AIAA Paper 2000-4816, pp. 1-8
  9. Song, S. I. and Park, G. J., 2002,'Optimal Design of Lightweight High Strength Door with Tailored Blank,' Transaction of KSAE, Vol. 10, No.2, pp. 174-185
  10. Sobieszczanski-Sobieski, J., 1990, 'Sensitivity Analysis and Multidisciplinary Optimization for Aircraft Design : Recent Advances and Results,' Journal of Aircraft, Vol. 27, No. 12, pp. 993-1001
  11. Stelmack, M. A., 1997, 'Concurrent Subspace Optimization of Mixed ContinuouslDiscrete Systems,' AIAA Paper 97-1229, pp. 1303-1315
  12. Striz, A. G., Sharma, T., Srivastava, T. and Sobieszczanski-Sobieski, J., 1998, 'Displacement Based Multilevel Structural Optimization : Beams, Trusses, and Frames,' AIAA Paper 98-4792, pp. 670-680
  13. Sobieszczanski-Sobieski, J., Kodiyalam, S., Yang, R. Y., 2001, 'Optimization for Car Body Under Constraints of Noise, Vibration, and Harshness(NVH), and Crash,' Structural Multidisciplinary Optimization, Vol. 22, pp. 295-306
  14. Cramer, E. J., Dennis, J. E., Jr., Frank, P. D., Lewis, R. M. and Shubin, G. R., 1994, 'Problem Formulation for Multidisciplinary Optimization, Center for Research on Parallel Computation,' Rice Univ., Rept. CRPC-TR 93334, Houston, pp. 1-23
  15. Shin, M. K and Park, G. J., 2004, 'Mathematical Validation of Multidisciplinary Design Optimization Based on Independent Subspaces,' Transactions of KSME(A), VoL 28, No.2, pp. 109 -117
  16. LS-DYNA Theoretical Manual, 1999, Livermore Software Technology CO.
  17. Alexandrov, N. M. and Kodiyalam, S., 1998, 'Initial Results of MDO Method Evaluation Study,' AIAA Paper 98-4884, pp. 1-13
  18. Song, S. I., Im, J. S., Yoo, Y. M., Shin, J. K., Lee, K. H. and Park, G. J., 2000, 'Automotive Door Design with the Ultra Light Steel Auto Body Concept using Structural Optimization,' 20th Int. Congr. of Theoretical and Applied Mechanics, Technical Report No. 950, Abstract book(held in Chicago, IL)
  19. Shin, J. K., Lee, K. H., Song, S. I. and Park, G., J., 2002, 'Automotive Door Design With the ULSAB Concept Using Structural Optimization,' Structural Multidisciplinary Optimization, Vol. 23, pp. 320-327
  20. Song, S. I., Cha., I. R., Lee, K. H. and Park, G. J., 2002, 'Optimization of the Automotive Side Door Impact Beam Considering Static Requirement,' Transaction of KSAE, Vol. 10, No.3, pp. 176-184
  21. Song, S. I., Bae, K. J., Lee, K. H. and Park, G. J., 2002, 'Lightweight Design for Automotive Door Using Optimizations and Design of Experiments,' Transaction of KSAE, Vol. 10, No. 1, pp. 125-132
  22. Kreyszig, E., 1993, 'Advanced Engineering Mathematics,' Wiley
  23. Heinkenschloss, M., Hribar, M. and Kokkolarras, M., 1998, 'Acceleration of Multidisciplinary Analysis Solvers by Inexact Subsystem Simulations,' AIAA Paper 98-4712, pp. 90-96