SYSTEM AND METHOD FOR DETERMINING THE AMPLITUDE OF OSCILLATORY INSTABILITIES IN FLUID MECHANICAL DEVICES

SYSTEM AND METHOD FOR DETERMINING THE AMPLITUDE OF OSCILLATORY INSTABILITIES IN FLUID MECHANICAL DEVICES

Embodiments herein provide a system (100) to estimate the amplitude of oscillations in a turbulent flow system (102) that exhibits oscillatory instabilities. The system (100) comprises of a sensor (102A) mounted on the turbulent flow system (102) to detect an oscillatory variable in the system obtai...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Kasthuri, Praveen, Unni, Vishnu Rajasekharan, Pavithran, Induja, Nair Sujith, Raman Pillai Indusekharan, Varghese, Alan John
Format: Patent
Sprache:eng
Schlagworte:
CONTROLLING
MEASURING
PHYSICS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:Embodiments herein provide a system (100) to estimate the amplitude of oscillations in a turbulent flow system (102) that exhibits oscillatory instabilities. The system (100) comprises of a sensor (102A) mounted on the turbulent flow system (102) to detect an oscillatory variable in the system obtaining a signal, a signal conditioner (104) that conditions the signal from the sensor, an amplitude estimator (110) that estimates the amplitude of the limit cycle oscillations, and also predict the proximity of the system to the oscillatory instability, a processor (108) connected to the amplitude estimator (110) to compare the predicted oscillation amplitude with a threshold value. The amplitude is estimated by estimating the spectral measure of the time series signal obtained from the system.