29-44 MĂSURĂTORI DE VIBRAŢII AXIALE LA HIDROAGREGATE
AXIAL VIBRATION MEASUREMENTS
ON HYDROELECTRIC UNITS
This paper presents examples of axial vibration measurements
performed on hydro units. Absolute vibration measurements, low band
amplitude spectra with respect to wicket gate opening on both lower and upper
brackets of vertical shaft hydro units was presented.
Keywords: axial vibration, amplitude spectra, natural frequency, natural mode
Cuvinte cheie: vibraţii axiale, spectre de amplitudine, frecvente proprii
de oscilație