Advance Prediction of Flow-Induced Variations

by Anton Bergant, TZ LITOSTROJ, Ljubljana, Yugosl, TZ LITOSTROJ, Ljubljana, Yugosl,
Franc Schweiger, TZ LITOSTROJ, Ljubljana, Yugosl, TZ LITOSTROJ, Ljubljana, Yugosl,



Document Type: Proceeding Paper

Part of: Waterpower '85

Abstract: Frequency analysis of hydraulic vibrations has been applied using a transfer matrix and impedance method. The computer program is given for the self-excited and forced vibrations, together with an example of self-excited vibrations in hydropower plant. The study indicates that frequency analysis makes possible detailed determination of elements which are the source of vibration and can be either eliminated or altered. The reliability of the method has been confirmed by experimental results in situ.

Subject Headings: Vibration | Hydro power | Frequency analysis | Power plants | Dynamic analysis | Hydraulics | Matrix (mathematics) | Computer software

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