A Theoretical Model for Self-Excited Vibrations in Hydraulic Gates, Valves and Seals Academic Article uri icon

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abstract

  • A general theoretical model is presented for the jet flow mechanism of self-excited vibrations of flow control devices operating at small openings. The coupled nonlinear differential equations are solved numerically using the Runge-Kutta method. The vibration displacement and discharge characteristics are given for a variety of parameters such as structural stiffness, fluid inertia and discharge coefficient. The predictions are shown to agree reasonably well with the experimental observations of swing check valve vibrations.

publication date

  • May 1, 1980