Patent ID: 11959456
Assignee: GENERAL ELECTRIC RENOVABLES ESPANA, S.L.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A vibration mitigating device for mitigating vibrations of a parked wind turbine, the vibration mitigating device configured for engagement with a wind turbine blade, comprising:
one or more air flow modifying elements that are configurable between a retracted configuration and an extended configuration;
a frame attachable to and having a fixed length in a span-wise direction of the wind turbine blade;
the air flow modifying elements movable along the frame between the retracted configuration and the extended configuration; and
wherein in the retracted configuration the modifying elements extend between a blade tip and a blade root of the blade with a first spanwise length, and in the extended configuration the modifying elements extend between the tip end and the root end of the blade with a second, greater spanwise length.