年次大会講演論文集
Online ISSN : 2433-1325
セッションID: J0504-2-3
会議情報
J0504-2-3 大形テンタゲートの並進型自励振動に関する2次元モデル再現実験([J0504-2])流体関連の騒音と振動(2))
阿南 景子石井 徳章辻 琢磨後藤 大八木 一聡
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会議録・要旨集 フリー

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抄録
As part of the investigation of the dynamic instability of the gate closely related to the Folsom dam Tainter-gate failure, and in order to assure the dynamic stability of the gate, the field vibration tests on three full-scale operational Tainter-gates were conducted. From these tests, the possible existence of another coupled-mode self-excited vibration mechanism, which involves the dangerous dynamic coupling of the whole gate rigid-body rotational vibration with a "parallel" bending of the skinplate was suggested. This paper presents that the 2-dimensional model test results, which was undertaken to confirm the existence of the coupled-mode self-excited vibration with skinplate parallel bending mode.
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