
調和変位による弾性送水管の強制振動調和変位による弾性送水管の強制振動 Forced Vibration of a Pipe Conveying Fluid due to the External Excitation 
"/山下, 清隆/"山下, 清隆 ,
"/Yamashita, Kiyotaka/"Yamashita, Kiyotaka ,
"/中山, 智了/"中山, 智了 ,
"/Nakayama, Tomoaki/"Nakayama, Tomoaki
Description
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.
FullText
http://crf.flib.ufukui.ac.jp/dspace/bitstream/10461/16112/1/039046.pdf