紀要論文 調和変位による弾性送水管の強制振動

山下, 清隆  ,  Yamashita, Kiyotaka  ,  中山, 智了  ,  Nakayama, Tomoaki

内容記述
Linear stability of a pipe conveying fluid has been studied as a classical problem of the elastic stability problem. The straight position of a pipe can be destabilized by Hopf bifurcation. The critical value of the fluid velocity at which the straight position of a pipe loses its stability is called critical flow velocity. When the fluid velocity is slightly smaller than its critical value for the Hopf bifurcation, the damping ratio of a certain mode becomes very small. In such region, the forced vibration of a pipe comes up as a problem, when subjected to the external excitation. In this paper, we theoretically investigate the frequency response of forced vibration of a pipe which is subjected to the external excitation.
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http://crf.flib.u-fukui.ac.jp/dspace/bitstream/10461/16112/1/039-046.pdf

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