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  1. 131 地震研究所
  2. 東京大学地震研究所彙報
  3. 75
  4. 2
  1. 0 資料タイプ別
  2. 30 紀要・部局刊行物
  3. 東京大学地震研究所彙報
  4. 75
  5. 2

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
cec103dd-97c4-4877-95ee-4b1b3107d038
名前 / ファイル ライセンス アクション
ji0752007.pdf ji0752007.pdf (2.8 MB)
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 seismic ground motion
主題Scheme Other
キーワード
主題 simulation
主題Scheme Other
キーワード
主題 boundary element method
主題Scheme Other
キーワード
主題 fast multipole method
主題Scheme Other
キーワード
主題 preconditioning of iterative solver
主題Scheme Other
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

WEKO 126530

福井, 貞雄

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著者別名
識別子
識別子 126531
識別子Scheme WEKO
姓名
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
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 453
主題Scheme NDC
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
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