Patent ID: 8210469

Claim:
A feedback control system for controlling vibration in a rotor blade, wherein the rotor blade is coupled to a rotor hub and has at least a torsional stiffness and a pitch angle associated therewith, the feedback control system comprising: (a) a flow control device for adjusting the pitch angle of the rotor blade; (b) a structural control device for adjusting the torsional stiffness of the rotor blade; (c) a plurality of sensors attached to the rotor blade; and (d) a control computer communicating with the flow control device, the structural control device and the plurality of sensors, wherein vibration data from the sensors is received by the control computer and control signals are generated by the control computer to reduce the torsional stiffness of the rotor blade with the structural control device and simultaneously increase the pitch angle of the rotor blade with the flow control device.