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Representation of Topology Using Homology Groups and Its Application to Structural Optimization : Fitness Value Based upon Topology for Unanalyzable Structures Generated in Genetic Algorithm and Its Effect on Performance of Optimization
http://hdl.handle.net/10087/5691
http://hdl.handle.net/10087/5691fa2ccf37-1dfa-453a-b655-90380c7f6214
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JSMEIJSA43_234.pdf (899.5 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2010-11-25 | |||||
| タイトル | ||||||
| タイトル | Representation of Topology Using Homology Groups and Its Application to Structural Optimization : Fitness Value Based upon Topology for Unanalyzable Structures Generated in Genetic Algorithm and Its Effect on Performance of Optimization | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Optimum Design | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Computational Mechanics | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Numerical Analysis | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Framed Structure | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Homology Group | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Genetic Algori | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Topology | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Torsion Coefficients | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Nakanishi, Yasuhiko
× Nakanishi, Yasuhiko |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Genetic algorithm (GA) is one of the most useful methods to optimize topology of structures. The performance of GA, however, deeply depends upon a rule of coding from a structure to a string (a chromosome), which must be decided before the execution of GA. An improper coding can cause a lot of unanalyzable structures to be generated in the process of optimization, which are separated into several pieces with no supporting or loading points. In this paper, a method to give such unanalyzable structures a fitness value based upon their topology using homology theory is proposed to raise the probability of obtaining the optimum structures. As numerical examples, topology of two-dimensional frames and three-dimensional structures consisting of triangular elements supported on a rigid wall and loaded vertically on a point distant from the wall are optimized under a constraint of constant weight. As a result, it was found that the proposed method increased the average fitness value and the number of optimum structures obtained in 100 trials of GA in comparison with other methods that considered unanalyzable structures to be useless. | |||||
| 書誌情報 |
JSME international journal. Series A, Solid mechanics and material engineering 巻 43, 号 3, p. 234-241, 発行日 2000-07-15 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 13447912 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11179396 | |||||
| 権利 | ||||||
| 権利情報 | 本文データは学協会の許諾に基づきCiNiiから複製したものである | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 出版者 | ||||||
| 出版者 | 社団法人日本機械学会 | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Journal Article | |||||
| 更新日 | ||||||
| 日付 | 2017-03-27 | |||||
| 日付タイプ | Created | |||||
