期刊
LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES
卷 13, 期 7, 页码 1406-1430出版社
LATIN AMER J SOLIDS STRUCTURES
DOI: 10.1590/1679-78252208
关键词
Biogeography-based optimization; meta-heuristic; truss structures; dynamic constraints; size and shape optimization
The current study presents an enhanced biogeography-based optimization (EBBO) algorithm for size and shape optimization of truss structures with natural frequency constraints. The BBO algorithm is one of the recently developed meta-heuristic algorithms inspired by the mathematical models in biogeography science and is based on the migration behavior of species among the habitats in the nature. In this study, the overall performance of the standard BBO algorithm is enhanced by new migration and mutation operators. The efficiency of the proposed algorithm is demonstrated by utilizing four benchmark truss design examples with frequency constraints. Numerical results show that the proposed EBBO algorithm not only significantly improves the performance of the standard BBO algorithm, but also finds competitive results compared with recently developed optimization methods.
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