Flow-induced vibration in in-line direction of a circular cylinder in a flow (1st report, measurement of added fluid forces in in-line direction acting on a circular cylinder in a flow)

Takashi Nishihara*, Shigehiko Kaneko, Ryoichi Yasukawa, Tatsuo Watanabe

*この研究の対応する著者

研究成果: Article査読

抄録

Precise fluid force measurement by water tunnel test was conducted to investigate the mechanism of flow-induced vibration of a circular cylinder in in-line direction. Added fluid forces acting on a circular cylinder were measured by forced oscillation tests. As a result, it was confirmed that negative damping force acts on a cylinder in a certain range of reduced flow velocity corresponding to the first in-line oscillation region. The measured added damping force was then reduced to exciting parameter, which denotes nondimensional exciting fluid force. The characteristics of exciting parameter and the effect of mass ratio to the stability criteria were discussed in detail.

本文言語English
ページ(範囲)2605-2613
ページ数9
ジャーナルNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
68
9
DOI
出版ステータスPublished - 2002 9月
外部発表はい

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 産業および生産工学

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