US 12,435,695 B2
Devices and methods for mitigating vibrations in wind turbine blades
Andreas Herrig, Garching (DE); and Satya Mohan Vamsi Andalam, Bengaluru (IN)
Assigned to LM WIND POWER A/S, Kolding (DK)
Appl. No. 18/291,567
Filed by LM WIND POWER A/S, Kolding (DK)
PCT Filed Jul. 22, 2022, PCT No. PCT/EP2022/070660
§ 371(c)(1), (2) Date Jan. 23, 2024,
PCT Pub. No. WO2023/002032, PCT Pub. Date Jan. 26, 2023.
Claims priority of application No. 21187536 (EP), filed on Jul. 23, 2021.
Prior Publication US 2024/0263610 A1, Aug. 8, 2024
Int. Cl. F03D 80/50 (2016.01); F03D 1/06 (2006.01)
CPC F03D 1/06495 (2023.08) [F03D 80/50 (2016.05); F05B 2230/60 (2013.01); F05B 2260/964 (2013.01); F05B 2280/5006 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A device (300) for mitigating vibrations of a parked wind turbine (10), comprising:
one or more airflow modifying elements (310, 370, 430),
wherein the device is configured to transition from an inactive state to an active state,
wherein the device is configured to grip a wind turbine blade (22) more firmly in the active state than in the inactive state,
wherein the device is configured such that the one or more airflow modifying elements (310, 370, 430) extend circumferentially around the wind turbine blade (22), and
wherein the device is configured to grip the wind turbine blade (22) along a spanwise length of the device in the active state, wherein the device (300) comprises a shape memory material, and the device is configured to transition from the inactive state to the active state in response to activation of the shape memory material.