JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing
Online ISSN : 1347-538X
Print ISSN : 1344-7653
ISSN-L : 1344-7653
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A New Algorithm for Bi-Directional Evolutionary Structural Optimization
Xiaodong HUANGYi Min XIEMark Cameron BURRY
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2006 Volume 49 Issue 4 Pages 1091-1099

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Abstract

In this paper, a new algorithm for bi-directional evolutionary structural optimization (BESO) is proposed. In the new BESO method, the adding and removing of material is controlled by a single parameter, i.e. the removal ratio of volume (or weight). The convergence of the iteration is determined by a performance index of the structure. It is found that the new BESO algorithm has many advantages over existing ESO and BESO methods in terms of efficiency and robustness. Several 2D and 3D examples of stiffness optimization problems are presented and discussed.

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© 2006 by The Japan Society of Mechanical Engineers
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