Journal
JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING
Volume 49, Issue 4, Pages 1091-1099Publisher
JAPAN SOC MECHANICAL ENGINEERS
DOI: 10.1299/jsmec.49.1091
Keywords
bi-directional evolutionary structural optimization; stiffness optimization; optimal design; performance index
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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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