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高速多重極境界要素法による広域地震動シミレーションに関する考察
https://doi.org/10.15083/0000032649
https://doi.org/10.15083/0000032649cec103dd-97c4-4877-95ee-4b1b3107d038
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ji0752007.pdf (2.8 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-05-30 | |||||
| タイトル | ||||||
| タイトル | 高速多重極境界要素法による広域地震動シミレーションに関する考察 | |||||
| 言語 | ja | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | seismic ground motion | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | simulation | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | boundary element method | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | fast multipole method | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | preconditioning of iterative solver | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.15083/0000032649 | |||||
| ID登録タイプ | JaLC | |||||
| その他のタイトル | ||||||
| その他のタイトル | Discussion of Fast Multipole Boundary Element Method for Simulating Wide-area Seismic Ground Motions | |||||
| 著者 |
福井, 貞雄
× 福井, 貞雄 |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 126531 | |||||
| 姓名 | Fukui, Takuo | |||||
| 著者所属 | ||||||
| 著者所属 | 福井大学工学部建築建設工学科 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A quantitative simulation scheme to analyze wide-area seismic ground motions is discussed in the present paper. The ground is assumed to be a multi-zone elastic material as the first order approximation. The problem has a large number of freedom parameters and a large wavenumber because the area covers at least hundreds of wavelengths. The region is approximately semi-infinite. The boundary element method in the frequency domain elastodynamics is proposed to analyze this problem. To solve a large quantitative model the fast multipole method, which reduces the computing complexity of matrix-vector product to O (N) by doing all computations on a tree structure, is introduced to accelerate the boundary element method with an iterative solver. To reduce computing time of large wavenumber problems the diagonal form of the fast multipole method is combined with the conventional fast multipole method. The boundary integral equation of Burton and Muller is introduced to avoid fictitious eigen-values in exterior problems. For the iterative solver of the boundary element method, a preconditioning scheme using the Haar wavelet transformation and an algorithm on the tree structure is proposed. A block preconditioning for the boundary element equation in a multi-zone region is also proposed. The proposed method is expected to analyze problems of millions of elements with parallel computing. This method is applicable to viscoelastic ground motion analysis with complex wavenumbers. | |||||
| 書誌情報 |
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo 巻 75, 号 2, p. 197-228, 発行日 2000-12-22 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 00408972 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00162258 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 453 | |||||
| 出版者 | ||||||
| 出版者 | 東京大学地震研究所 | |||||
| 出版者別名 | ||||||
| Earthquake Research Institute, University of Tokyo | ||||||
