Acoustic Damping System for a Wind Turbine Tower
AssigneeGeneral Electric Company
InventorsRoger Drobietz, Hans-Gerd Runde, Martin Duettmann, Andreas Petersen, Markus Koschinsky, Bernd Klaas
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Abstract
The present disclosure is directed to a system and method for reducing audible tonality of a wind turbine caused by vibrations generated by the drivetrain assembly thereof. The system includes a plurality of damping elements mounted at a plurality of locations on an inner surface of a tower of the wind turbine, the plurality of locations having vibration levels above a predetermined threshold. Thus, during operation of the wind turbine, the plurality of damping elements are configured to damp vibrations of the tower so noise generated thereby.
Claims20
A method for reducing audible tonality generated by a wind turbine, the method comprising:
- determining one or more locations on an inner surface of a tower of the wind turbine having vibration levels above a predetermined threshold;
- and
- mounting a damping element at each location on the inner surface of the tower of the wind turbine,
- wherein, during operation of the wind turbine, the damping elements are configured to damp vibrations of the tower so as to reduce audible tonality generated thereby.
A method for reducing audible tonality generated by a wind turbine, the method comprising:
- determining a vibration area on a tower of the wind turbine having vibration levels above a predetermined threshold;
- and
- mounting a plurality of damping elements within the vibration area of the tower of the wind turbine at or near antinode locations,
- wherein, during operation of the wind turbine, the damping elements are configured to damp vibrations of the tower so as to reduce audible tonality generated thereby.
A system for reducing audible tonality generated by a wind turbine, the system comprising:
- a plurality of damping elements mounted at a plurality of locations on an inner surface of the tower, the plurality of locations having vibration levels above a predetermined threshold,
- wherein, during operation of the wind turbine, the plurality of damping elements are configured to damp vibrations of the tower so as to reduce audible tonality generated thereby.
Dependencies are inferred from the claim text.