A study on the annular leakage-flow-induced vibrations (1st report, stability for translational and rotationalsingle-degree-of-freedom systems)

Dong Wei Li*, Shigehiko Kaneko, Shinji Hayama

*この研究の対応する著者

研究成果: Article査読

8 被引用数 (Scopus)

抄録

This study reports the stability of annular leakage-flow-induced vibrations. The pressure distribution of fluid between a fixed outer cylinder and a vibrating inner cylinder was obtained in the case of a translationally and rotationally coupled motion of the inner cylinder. The unsteady fluid force acting on the inner cylinder in the case of translational and rotational single-degree-of- freedom vibrations was then expressed in terms proportional to the acceleration, velocity, and displacement. Then the critical flow rate (at which stability was lost) was determined for an annular leakage-flow-induced vibration. Finally, the stability was investigated theoretically. It is known that instability will occur in the case of a divergent passage, but the critical flow rate depends on the passage increment in a limited range: the eccentricity of the passage and the pressure loss factor at the inlet of the passage lower the stability.

本文言語English
ページ(範囲)2251-2256
ページ数6
ジャーナルNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
65
635
DOI
出版ステータスPublished - 1999
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 機械工学

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