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System for Suppressing Vibration in Turbomachine ComponentsDisclosed is a system for suppressing vibration and noise mitigation in structures such as blades in turbomachinery. The system includes flexible piezoelectric patches which are secured on or imbedded in turbomachinery blades which, in one embodiment, comprises eight (8) fan blades. The system further includes a capacitor plate coupler and a power transfer apparatus, which may both be arranged into one assembly, that respectively transfer data and power. Each of the capacitive plate coupler and power transfer apparatus is configured so that one part is attached to a fixed member while another part is attached to a rotatable member with an air gap there between. The system still further includes a processor that has 16 channels, eight of which serve as sensor channels, and the remaining eight, serving as actuation channels. The processor collects and analyzes the sensor signals and, in turn, outputs corrective signals for vibration/noise suppression of the turbine blades.
Document ID
20150003145
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Morrison, Carlos R.
Provenza, Andrew J.
Choi, Benjamin B.
Bakhle, Milind A.
Min, James B
Stefko, George L.
Kussmann, John A
Fougere, Alan J
Date Acquired
March 18, 2015
Publication Date
November 5, 2013
Subject Category
Aircraft Propulsion And Power
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-8,577,504
Patent Application
US-Patent-Appl-SN-12/954,009

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