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

Huang, X and Xie, Y 2007, 'Numerical stability and parameters study of an improved bi-directional evolutionary structural optimization method', Structural Engineering and Mechanics, vol. 27, pp. 49-61.


Document type: Journal Article
Collection: Journal Articles

Title Numerical stability and parameters study of an improved bi-directional evolutionary structural optimization method
Author(s) Huang, X
Xie, Y
Year 2007
Journal name Structural Engineering and Mechanics
Volume number 27
Start page 49
End page 61
Total pages 13
Publisher Techno-Press
Abstract 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.
Subject Structural Engineering
Keyword(s) Topology Optimization
DOI - identifier 10.1016/j.finel.2007.06.006
ISSN 1225-4568
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