Device for avoiding induced rotor blade oscillations of a rotor blade of a wind turbine and method

A method for temporarily fastening a device for avoiding induced rotor blade oscillations to a rotor blade of a wind turbine, wherein the rotor blade extends from a rotor blade root in a rotor blade longitudinal direction with a rotor blade length to a rotor blade tip and from a rotor blade leading edge with a rotor blade chord in a rotor blade chord direction perpendicular to the rotor blade longitudinal direction to a rotor blade trailing edge and has a suction side and a pressure side, wherein the device includes

• two rope sections which, in a mounted state in which the device is mounted on the rotor blade, are configured to act as a disturbing edge,
• a fastening arrangement comprising a plurality of connecting elements, wherein
• the rotor blade has a plurality of serrations arranged on the rotor blade trailing edge,
• the disturbing edge is configured to be attachable to the rotor blade in a region of the rotor blade leading edge,
• the fastening arrangement is configured to be attachable to the disturbing edge,
• the method comprising:
• arranging the disturbing edge on the rotor blade;
• attaching the fastening arrangement to the disturbing edge on one of the suction side or the pressure side;
• guiding the plurality of connecting elements from the one of the suction side or the pressure side to another of the suction side or the pressure side over the rotor blade trailing edge such that each of the plurality of connecting elements runs between two of the plurality of serrations;
• and
• fastening the device to the rotor blade by attaching the fastening arrangement on the other of the suction side or the pressure side to the disturbing edge.