期刊
COMPUTERS & STRUCTURES
卷 172, 期 -, 页码 40-58出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2016.05.008
关键词
Topology and sizing optimization of trusses; Gravitational search algorithm; Efficient member grouping; Double and triple layer grid structures; Harmony search algorithm
An efficient modified gravitational harmony search algorithm (MGHSA) for topology optimization of double and triple layer grid structures is presented in the article. In MGHSA, the best agents in each iteration are identified and each of them is considered as a group leader. Other agents are randomly located in these groups. To determine the new agents' positions, only the group leader applies force to the other agents in the group. Also, a novel member grouping strategy is included in the optimization algorithm. Optimization results demonstrate the efficiency of the novel MGHSA algorithm and member grouping strategy developed in this study. (C) 2016 Elsevier Ltd. All rights reserved.
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