Patent ID: 11927175
Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
Field: Other consumer goods (Other fields)
Classification: CPC F  G  Y | IPC F  G

Claim 11:
12. A method for constructing a rotor blade comprising the steps:
providing a rotor blade with a leading edge and a trailing edge, wherein the rotor blade is designed and configured for being exposed to a fluid flowing substantially from the leading edge to the trailing edge,
providing at least three sensors designed for detecting flow characteristics of the fluid and providing respective sensor signals and at least one actuator designed for producing an anti-noise signal based on a sensor signal,
arranging the sensors at the surface of the rotor blade in a line with a non-uniform spacing between adjacent sensors, and
arranging the actuator at the surface of the rotor blade, wherein the actuator is arranged and prepared such that flow-induced edge noise of the rotor blade, which is generated by the fluid, is at least partly cancelled out by the anti-noise signal.