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Topology Optimization for a Knuckle Using Design Space Adjustment and Refinement

설계공간 조정과 세분화를 이용한 너클의 위상 최적설계

  • 유용균 (한국과학기술원 대학원 기계공학과) ;
  • 곽병만 (한국과학기술원 기계공학과) ;
  • 장인권 (한국과학기술원 대학원 기계공학과)
  • Published : 2006.05.01

Abstract

Design space optimization using design space adjustment and refinement is used to optimize a knuckle in the suspension system of an automobile. This approach is a new efficient method for large-scale topology optimization by virtue of two reasons. First, design space adjustment including design space expansion and reduction is suitable for large-scale problems. Second, the design space refinement can be done globally or locally where and when necessary and thus is very effective in obtaining a target resolution with much less number of elements. Compliance minimization for a knuckle is considered with a realistic working condition to show the effectiveness and superiority of the new approach.

Keywords

References

  1. Altair Engineering, Inc., 2002, 'OptiStruct Training, Optimization-Volume 1,' Troy MI, USA
  2. Wang, L., Basu, P. K., and Leiva, J. P., 2004, 'Automobile Body Reinforcement by Finite Element Optimization,' Finite Elements in Analysis and Design, Vol. 40, pp. 879-893 https://doi.org/10.1016/S0168-874X(03)00118-5
  3. Kim, I. Y. and Kwak, B. M., 2002, 'Design Space Optimization Using a Numerical Design Continuation Method,' International Journal for Numerical Methods in Engineering, Vol. 53, pp. 1979-2002 https://doi.org/10.1002/nme.369
  4. Jang, I. G. and Kwak, B. M., 2005, 'Evolutionary Topology Optimization Using Design Space Adjustment Based on Fixed Grid,' International Journal for Numerical Methods in Engineering, Accepted for publication https://doi.org/10.1002/nme.1607
  5. Jang, I. G. and Kwak, B. M., 2005, 'Evolutionary Topology Optimization for Large-scale Problems Using Design Space Adjustment and Refinement,' Proc. of the 6th WCSMO Conference, Rio De Janeiro, Brazil
  6. Choi, C. and Bae, K. I., 1996, 'The Stress Analyses of Chassis Components in the Early Stage of Vehicle Development,' Trans. of KSME, Vol. 36, No. 9, pp. 876-885
  7. Prager, W., 1968, 'Optimality Criteria in Structural Design,' Proc. of Nat. Acad. Sci., Vol. 61, No. 3, pp. 794-796 https://doi.org/10.1073/pnas.61.3.794
  8. Haftka, R. T. and Gurdal, Z., 1992, 'Elements of Structural Optimization,' Kluwer Academic Publishers, London, pp. 347-386
  9. Sigmund, O. and Petersson, J., 1998, 'Numerical Instabilities in Topology Optimization: A Survey on Procedures Dealing with Checkerboards, Mesh-independencies and Local Minima,' Structural Optimization, Vol. 16, pp. 68-75 https://doi.org/10.1007/BF01214002