Suppression of Resonances from Vibration Signal using Vold-Kalman Filter

Abstract

Presented paper describes usage of Vold-Kalman filter of the first generation compared with time-frequency method as the short-time Fourier transform or order tracking technique based on resampling. Advantages of Vold-Kalman filter will be showed on extraction of order signal for variable rotor speed. Additionally, ability to extract multiple orders will be demonstrated as well as utilization of removing resonances from a real vibration signal during the rotor startup and coastdown.