Patent ID: 11867156
Assignee: GENERAL ELECTRIC COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 5:
6. A method for mitigating vortex-shedding vibrations or stall-induced vibrations on one or more rotor blades of a wind turbine during standstill, the method comprising:
installing a vibration-mitigation apparatus on a rotor blade of the one or more rotor blades, wherein installation of the vibration-mitigation apparatus further comprises:
positioning at least one airflow modifying element at a desired location along an outer surface of the rotor blade with at least one positioning element wherein the at least one positioning element comprises at least one cord member helically wrapped around a portion of the respective rotor blade; and,
securing the at least one positioning element to the outer surface of the rotor blade via at least one securing element;
performing an installation, a commissioning, a maintenance and/or a repair operation on the wind turbine with the vibration-mitigation apparatus installed; and,
once the installation, commissioning, maintenance and/or the repair operation is complete, removing the vibration-mitigation apparatus from the rotor blade.