US 11,686,293 B2
Devices and methods for mitigating vibrations in wind turbines
Darren John Danielsen, Greenville, SC (US); and Marc Canal Vila, Barcelona (ES)
Assigned to General Electric Renovables Espana, S.L., Barcelona (ES)
Filed by General Electric Renovables Espana, S.L., Barcelona (ES)
Filed on Oct. 4, 2022, as Appl. No. 17/959,463.
Claims priority of application No. 21382892 (EP), filed on Oct. 4, 2021.
Prior Publication US 2023/0104837 A1, Apr. 6, 2023
Int. Cl. F03D 80/50 (2016.01); F03D 1/06 (2006.01)
CPC F03D 80/50 (2016.05) [F03D 1/0675 (2013.01); F05D 2260/96 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for mitigating vibrations of a parked wind turbine, the device configured to be arranged around a blade of the wind turbine, comprising:
a length along a longitudinal direction and a cross-section perpendicular to the longitudinal direction, the cross-section including a radial direction and a tangential direction;
three or more air flow modifying elements comprising a concave outer surface configured to face away from the blade;
a supporting structure configured to support the air flow modifying elements; and
a constant angular distance in cross-section between adjacent air flow modifying elements.