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  1. B200 工学部/工学研究科
  2. B200b 紀要
  3. Memoirs of the School of Engineering, Nagoya University
  4. 44(2)

Second-order wave effects on ocean platforms: theory and experiment

https://doi.org/10.18999/memsenu.44.2.224
https://doi.org/10.18999/memsenu.44.2.224
54cc288a-ad63-47bf-ac91-fd15b6c9b703
名前 / ファイル ライセンス アクション
44-2-03.pdf 44-2-03.pdf (2.8 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2020-10-23
タイトル
タイトル Second-order wave effects on ocean platforms: theory and experiment
言語 en
著者 Matsui, Tetsuya

× Matsui, Tetsuya

WEKO 101861

en Matsui, Tetsuya

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
キーワード
主題Scheme Other
主題 Nonlinear wave load
キーワード
主題Scheme Other
主題 second-order diffraction force
キーワード
主題Scheme Other
主題 wave springing
キーワード
主題Scheme Other
主題 sum-frequency oscillation
キーワード
主題Scheme Other
主題 floating body
キーワード
主題Scheme Other
主題 tension leg platform
キーワード
主題Scheme Other
主題 vertical-plane motion
キーワード
主題Scheme Other
主題 tether force
抄録
内容記述 Second-order wave effects on the behaviour of ocean platforms have been studied theoretically and experimentally, with particular interest in sum-frequency oscillations of tension leg platforms. These investigations are reviewed in this paper based on the recent works by the author and his co-workers[1)-3)].The paper consists of two parts. In Part 1, the complete second-order diffraction theory is formulated for predicting second-order wave loads on arbitrary three-dimensional bodies floating in regular waves. Green's second identity is exploited to express the secondorder forces due to the second-order potential in terms of the first-order quantities alone. The resulting expressions for the second-order forces are evaluated from numerical first-order solutions based on the hybrid integral-equation method. Numerical examples are presented for a variety of geometries and compared with previous theoretical and numerical solutions as well as with model test results. Agreement is seen to be satisfactory, illustrating the validity of the proposed approach. In Part 2, the results are presented of the model tests which were performed in regular waves to measure the second-order sum-frequency oscillations and tether forces of tension leg platforms. These test results are used to validate the predictions based on the complete second-order diffraction theory developed in Part 1. It is found that the vertical-plane motions and resulting tether forces of the tension leg platforms include second-order sum-frequency resonant components which are comparable in magnitude with first-order wave-frequency responses. The correlation between predicted and measured results is overall satisfactory, confirming the validity of the theoretical predictions.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 School of Engineering, Nagoya University
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
ID登録
ID登録 10.18999/memsenu.44.2.224
ID登録タイプ JaLC
ISSN(print)
収録物識別子タイプ PISSN
収録物識別子 0919-0805
書誌情報 en : Memoirs of the School of Engineering, Nagoya University

巻 44, 号 2, p. 224-266, 発行日 1993-03-31
著者版フラグ
値 publisher
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