Numerical Study on Vortex-induced Vibration of Slender Flexible Structure Using Finite Di erence Method and Wake Oscillator Model

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Numerical Study on Vortex-induced Vibration of Slender Flexible Structure Using Finite Di erence Method and Wake Oscillator Model

Persistent ID (NDL): info:ndljp/pid/10168360

Material type: 博士論文

Author: Phan, Doan Viet

Publisher: -

Date granted: 2014-09-25

Material Format: Digital

Capacity, size, etc.: -

Degree grantor and degree: 横浜国立大学,博士（工学）

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Note (General)：: Several research efforts have been directed toward the development of modelsfor response prediction of slender structure such as flexible risers influ...

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Material Type: 博士論文
Title: Numerical Study on Vortex-induced Vibration of Slender Flexible Structure Using Finite Di erence Method and Wake Oscillator Model
Author/Editor: Phan, Doan Viet
Author Heading: Phan, Doan Viet
Publication Date: 2014-09-25
Publication Date (W3CDTF): 2014-09-25
Alternative Title: 有限差分法と後流振動子モデルを用いた柔軟細長構造物の渦励振に関する数値的研究
Degree Grantor: 横浜国立大学
Date Granted: 2014-09-25
Date Granted (W3CDTF): 2014-09-25
Dissertation Number: 甲第432号
Degree Type: 博士（工学）
Conferring No. (Dissertation): 甲第432号
Text Language Code: eng
NDLC: UT51
Target Audience: 一般
Note (General): Several research efforts have been directed toward the development of modelsfor response prediction of slender structure such as flexible risers influencedby vortex-induce vibrations. The main difficulties arise from the fact that thedynamic response of flexible risers involves a highly nonlinear behavior andevaluating the vortex-induced forces acting on the structure. This doctoralthesis proposes a numerical simulation method for the dynamic motion of aflexible riser pipe undergoing vortex-induced vibration (VIV). The method isbased on a finite difference scheme for solving nonlinear structural dynamicsof the pipe and a wake oscillator model for quantifying vortex-induced forcesacting on the pipe. The combination of which can offer a very efficient andstable computation. To investigate the accuracy of the method, simulationsof the VIV of riser pipes under uniform flow and sheared flow conditions wereperformed; and then obtained results were compared with experiments of precedingworks. Numerical results were compared with experimental data showinggood agreement in response of amplitude, mode shape and frequency ofdisplacement.It is confirmed that the present method can simulate a couple of importantaspects of the VIV of the pipes by using finite difference method and wakeoscillator model.
Persistent ID (NDL): info:ndljp/pid/10168360
https://dl.ndl.go.jp/pid/10168360
Collection: 障害者向け資料
Collection (Materials For Handicapped People:1): テキストデータ
Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
https://dl.ndl.go.jp/collections/A00014
Acquisition Basis: 博士論文（自動収集）
Date Accepted (W3CDTF): 2016-08-04T09:59:51+09:00
Date Created (W3CDTF): 2016-09-16
Format (IMT): application/pdf
Access Restrictions: 国立国会図書館内限定公開
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Periodical Title (URI): http://hdl.handle.net/10131/8886
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