DOI QR코드

DOI QR Code

Numerical stability and parameters study of an improved bi-directional evolutionary structural optimization method

  • Huang, X. (School of Civil and Chemical Engineering, RMIT University) ;
  • Xie, Y.M. (School of Civil and Chemical Engineering, RMIT University)
  • 투고 : 2006.05.10
  • 심사 : 2007.04.03
  • 발행 : 2007.09.10

초록

This paper presents a modified and improved bi-directional evolutionary structural optimization (BESO) method for topology optimization. A sensitivity filter which has been used in other optimization methods is introduced into BESO so that the design solutions become mesh-independent. To improve the convergence of the optimization process, the sensitivity number considers its historical information. Numerical examples show the effectiveness of the modified BESO method in obtaining convergent and mesh-independent solutions. A study of the effects of various BESO parameters on the solution is then conducted to determine the appropriate values for these parameters.

키워드

참고문헌

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피인용 문헌

  1. Selection of time step for pseudodynamic testing vol.10, pp.3, 2011, https://doi.org/10.1007/s11803-011-0079-8
  2. Evolutionary topology optimization of geometrically and materially nonlinear structures under prescribed design load vol.34, pp.5, 2010, https://doi.org/10.12989/sem.2010.34.5.581