Abstract
The computation procedure for structural shape optimization is based on the heuristic optimization procedures, such as swarm intelligence (SI), that use patterns found in self-organizing phenomena observed in nature. Most SI techniques including particle swarm optimization (PSO) and artificial bee colony (ABC), attain a global optimal solution. The firefly algorithm (FA) can attain both a global optimal and local optimal solutions by setting suitable computational parameters. However, the method for setting these parameters is comparatively difficult. In order to simplify the setting of these parameters, we implement a computational scheme where the distance between two fireflies in the design variable space is dimensionless. The effectiveness and the validity of this FA are clarified by showing the diversified solution for a global optimal solution and local optimal solutions using a local search in the structural shape optimization of a free-form surface shell.
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Natsuki Tanaka received her B.Eng. degrees from Kagoshima University in 2013. She is currently a graduate student at Kagoshima University. Her research interests include structural morphogenesis, in architecture engineering field.
Toshio Honma received his B.Eng., M.Eng. and D.Eng. degrees from Nihon University in 1979, 1981, and 1986, respectively. He is currently a professor at Kagoshima University. His research interests include structural morphogenesis, form finding analysis and mechanical behavior analysis for tension structure, and optimum design based on decent solutions, in architecture engineering field.
Yohei Yokosuka received his B.F.A. degrees from Tokyo University of the Arts in 2006, and Ph.D. in Information Science degrees from JAIST in 2013. He is currently an assistant professor at Kagoshima University. His research interests include form-finding analysis for tension structure and variable geometry structure, in architecture engineering field.
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Tanaka, N., Honma, T. & Yokosuka, Y. Structural shape optimization of free-form surface shell and property of solution search using firefly algorithm. J Mech Sci Technol 29, 1449–1455 (2015). https://doi.org/10.1007/s12206-015-0317-5
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DOI: https://doi.org/10.1007/s12206-015-0317-5