Dynamically detecting resonating frequencies of resonating structures

摘要

There is described herein a real-time scheme, implementable in software, hardware, or a combination thereof, to detect a resonating frequency of a structure from a sensed signal and dynamically set the center frequency of an adaptive compensator for effective attenuation of the resonating frequency.

主权项

1. A control system for dynamically setting a parameter of an adaptive compensator for attenuating a variable frequency from a resonating structure in an aircraft, the system comprising:
a filtering unit comprising a first set of a plurality of frequency filters spaced along a frequency detection range for receiving a sensed signal and outputting a plurality of attenuated power signals; a frequency detection unit operatively connected to the filtering unit for receiving the plurality of attenuated power signals, identifying two of the frequency filters having a relatively lowest power, and determining a resonating frequency by averaging center frequencies of the two identified frequency filters; and an adaptive compensator operatively connected to the frequency detection unit and having a variable parameter to be set in accordance with the resonating frequency as determined by the frequency detection unit.