Axial Leakage Flow-induced Vibration of a Thin Cylindrical Shell with Respect to Axisymmetric Vibration

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  • FUJITA Katsuhisa
    Mechanical Systems Engineering, Graduate School of Engineering, Osaka Prefecture University
  • SHINTANI Atsuhiko
    Mechanical Systems Engineering, Graduate School of Engineering, Osaka Prefecture University
  • ONO Masakazu
    Mechanical Systems Engineering, Graduate School of Engineering, Osaka Prefecture University

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Other Title
  • 薄肉円筒殻の軸対称振動に関する軸方向すきま流励起振動
  • ウスニク エントウカク ノ ジク タイショウ シンドウ ニ カンスル ジク ホウコウ スキマ リュウレイキ シンドウ

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In this paper, the axial leakage flow-induced vibration of a thin cylindrical shell is reported. We focus on the axisymmetric vibration of a shell for the vibration of a thin cylindrical shell subjected to axial leakage flow. The coupled equations between a shell and a fluid are obtained by using the Donnell's shell theory and the Navier-Stokes equation. The coupled equations are derived by utilizing unsteady fluid forces acting on a shell. The influence of the axial flow velocity on the unstable phenomena is clarified concerning axisymmetric vibration of a shell. The numerical calculations are performed taking the dimensions of shell and fluid as parameters.

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