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A development of move limit strategy based on the accuracy of approximation for structural optimization

구조최적설계시 근사법의 정확도를 이용한 이동한계 전략의 개발

  • Park, Young-Sun (Mechanical Engineering Technology Research Center, Hanyang University) ;
  • Park, Gyung-Jin (Dept. of Mechanical Engineering, Hanyang University)
  • 박영선 (한양대학교 기계기술연구소) ;
  • 박경진 (한양대학교 기계공학과)
  • Published : 1997.08.01

Abstract

The move limit strategy is used to avoid the excessive approximation in the structural optimization. The size of move limit has been obtained by engineering experience. Recently, efforts based on analytic methods are performed by some researchers. These methods still have problems, such as prematurity or oscillation of the move limit size. The existing methods usually control the bound of design variables based on the magnitude. Thus, they can not properly handle the configuration variables based on the geometry in the configuration optimization. In this research, the size of move limit is calculated based on the accuracy of approximation. The method is coded and applied to the two-point reciprocal quadratic approximation method. The efficiency is evaluated through examples.

Keywords

Move Limit Strategy;Structural Optimization;Configuration Optimization;Two-point Reciprocal Quadratic Approximation;Prematured Convergence

References

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