Optimum grillage structure design under a worst point load using real-coded micro-genetic algorithm

Y. Kim, K. Gotoh, K. S. Kim, M. Toyosada

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

3 被引用数 (Scopus)

抄録

The optimum grillage design belongs to nonlinear constrained optimization problem. The determination of beam scantlings for the grillage structure is a very crucial matter out of whole structural design process. The performance of optimization methods, based on penalty functions, is highly problem-dependent and many methods require additional tuning of some variables. This additional tuning is the influences of penalty coefficient, which depend strongly on the degree of constraint violation. Moreover, Binary-coded Genetic Algorithm (BGA) meets certain difficulties when dealing with continuous and/or discrete search spaces with large dimensions. With the above reasons, Real-coded Micro-Genetic Algorithm (RμGA) is proposed to find the optimum beam scantlings of the grillage structure without handling any of penalty functions. RμGA can help in avoiding the premature convergence and search for global solution-spaces, because of its wide spread applicability, global perspective and inherent parallelism. Direct stiffness method is used as a numerical tool for the grillage analysis. In optimization study to find minimum weight, sensitivity study is carried out with varying beam configurations. From the simulation results, it has been concluded that the proposed RμGA is an effective optimization tool for solving continuous and/or discrete nonlinear real-world optimization problems.

本文言語英語
ホスト出版物のタイトルProceedings of the International Offshore and Polar Engineering Conference
ページ730-736
ページ数7
出版ステータス出版済み - 2005
イベント15th International Offrshore and Polar Engineering Conference, ISOPE-2005 - Seoul, 大韓民国
継続期間: 6 19 20056 24 2005

出版物シリーズ

名前Proceedings of the International Offshore and Polar Engineering Conference
2005
ISSN(印刷版)1098-6189
ISSN(電子版)1555-1792

その他

その他15th International Offrshore and Polar Engineering Conference, ISOPE-2005
国/地域大韓民国
CitySeoul
Period6/19/056/24/05

All Science Journal Classification (ASJC) codes

  • エネルギー工学および電力技術
  • 海洋工学
  • 機械工学

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