METHOD FOR DETERMINING THE OSCILLATION PARAMETERS OF TURBO-MACHINE BLADES AND A DEVICE FOR PUTTING THE SAME INTO PRACTICE

METHOD FOR DETERMINING THE OSCILLATION PARAMETERS OF TURBO-MACHINE BLADES AND A DEVICE FOR PUTTING THE SAME INTO PRACTICE

Method for determining oscillation parameters of turbo-machine blades consists in that when the blade tip travels in front of a sensor, reading values of a single pulsed signal formed by the sensor are obtained in a number that is not lower than that of unknown parameters of a harmonic or polyharmon...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: IVANOVICH Danilin Aleksandr, ZHORZHEVICH CHernyavskij Arkadij, ALEKSANDROVICH Gretskov Andrej, ALEKSANDROVICH Danilin Sergej
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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Beschreibung
Zusammenfassung:Method for determining oscillation parameters of turbo-machine blades consists in that when the blade tip travels in front of a sensor, reading values of a single pulsed signal formed by the sensor are obtained in a number that is not lower than that of unknown parameters of a harmonic or polyharmonic oscillation of the blade, the origin of a single pulsed signal readings obtained for each blade being synchronized with the blade tip position relative to the sensor according to a given level of the single pulsed signal; then the values of the harmonic or polyharmonic oscillation parameters of the blade are calculated with the use of the obtained values of the single pulsed signal reading origins and of the value of the turbo-machine shaft revolution period.