3715 大形テンタゲートの複合発散振動に関する実験的研究 : 摩擦維持型動的安定の検討(J13-2 流動励起振動2(非線形・制振・最適設計),J13 流体関連の騒音と振動)

概要

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In order to evaluate the Coulomb frictional effects experimentally, a simple experiment was conducted with the 1/13-scale 3-dimensional model of Folsom dam Tainter-gate. With a small Coulomb friction added to each side of the skinplate, the model gate was initially forced to vibrate and its dynamic response was carefully observed. In the present experiment a rubber sheet was attached to the two sides of the skinplate and in contact with the channel walls, thereby providing a small frictional resistance. The bottom end of the skin plate was fixed to the channel floor with a thin string, and the gate was raised to the point where the string suddenly broke. Thus the gate was impulsively forced to vibrate, where the initial displacement could be adjusted by changing the strength of string.
社団法人日本機械学会の論文
2006-09-15