US 12,387,703 B2
Semi-active noise control system for an aircraft
Wolfgang Machunze, Hamburg (DE); Alois Friedberger, Hamburg (DE); Christian Thomas, Blagnac (FR); and Martin Wandel, Blagnac (FR)
Assigned to Airbus Operations GmbH, Hamburg (DE); and Airbus S.A.S., Blagnac (FR)
Filed by Airbus Operations GmbH, Hamburg (DE); and Airbus S.A.S., Blagnac (FR)
Filed on Jun. 14, 2023, as Appl. No. 18/209,770.
Claims priority of application No. 22181346 (EP), filed on Jun. 27, 2022.
Prior Publication US 2023/0419936 A1, Dec. 28, 2023
Int. Cl. G10K 11/172 (2006.01); G10K 11/16 (2006.01); B64C 1/00 (2006.01)
CPC G10K 11/16 (2013.01) [B64C 1/00 (2013.01); B64C 2220/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A semi-active noise control system, comprising:
a layer configured to be part of an interior panel of an aircraft;
wherein the layer comprises:
a plurality of conductive tracks;
a driver arrangement;
a plurality of tuned mass dampers; and
a plurality of sensors;
wherein each of the plurality of tuned mass dampers comprises an eigenfrequency that depends on a control signal applied to the tuned mass damper;
wherein each of the plurality of tuned mass dampers is connected to the driver arrangement via at least one of the plurality of conductive tracks and is configured to receive control signals from the driver arrangement;
wherein each of the plurality of sensors is connected to the driver arrangement via at least one of the plurality of conductive tracks;
wherein each of the sensors is configured to sense vibrations and/or acoustic sounds and to send measurement signals to the driver arrangement; and
wherein the driver arrangement is configured to analyze the measurement signals and to generate and send control signals to the tuned mass dampers such that the eigenfrequency of the tuned mass dampers is matched with the frequency of the vibrations and/or acoustic sounds sensed by the sensors.