Systems and methods for attenuating noise in a wind turbine
AssigneeGeneral Electric Company
InventorsRobert Arvin Hedeen, John Paul Davis
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Abstract
A wind turbine having an attenuating unit is presented. One embodiment of the wind turbine includes a tower and a power unit disposed at a first end of the tower. The wind turbine further includes the attenuating unit that is operatively coupled to at least one of the tower and the power unit and configured to attenuate at least the portion of the vibrational bending waves having a frequency above a threshold frequency to reduce the tonal noise of the wind turbine.
Claims20
A wind turbine, comprising:
- a tower;
- a power unit disposed at a first end of the tower;
- and
- an attenuating unit operatively coupled to at least one of the tower and the power unit and configured to attenuate at least a portion of vibrational bending waves from the power unit having a frequency above a threshold frequency to reduce tonal noise of the wind turbine.
A method for reducing tonal noise in a wind turbine, the method comprising:
- attenuating vibrational bending waves having a frequency above a threshold frequency by using an adjustable attenuating unit on a structural unit of the wind turbine.
An attenuating device for reducing tonal noise in a wind turbine, the device comprising:
- a support platform configured to fasten the attenuating device to a structural unit of the wind turbine;
- studs operatively coupled to the support platform and disposed substantially perpendicular to the support platform;
- and
- heads operatively coupled to the studs and rotatable along the studs to vary a distance of the heads from the support platform.
Dependencies are inferred from the claim text.