Rotor active stability control
AssigneeKymatics, LLC
InventorJoseph John Andrews
Life of this patent
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Abstract
A method for stabilizing a motion of a rotor blade of a rotor comprising the steps: read into a controller, a measurement from a sensor responsive to said rotor blade; determine an out-of-compliance motion of the rotor blade; and output a first control signal to an actuator affecting the rotor blade such that a vibration mode of said rotor blade is dampened. The damping may be achieved by changing the drag, lift or torsion of the rotor blade. The out-of-compliance motion may be a lead, lag, upward motion, downward motion or twist of the rotor blade away from a nominal value.
Claims19
A method for stabilizing a motion of a rotor blade of a rotor comprising the steps:
- a) read into a controller, a measurement from a sensor responsive to said rotor blade, said measurement being of a motion of said rotor blade;
- b) determine, by said controller, an out-of-compliance motion of said rotor blade, said out-of-compliance motion of said rotor blade being a difference between said measured motion of said rotor blade and a nominal motion of said rotor blade;
- and
- c) output, from said controller, a first control signal to an actuator affecting said rotor blade
- wherein:
- d) said first control signal is determined by a control algorithm executed by said controller;
- e) said actuator causes a change in one or more of a drag, lift or torsion of said rotor blade counter to said out-of-compliance motion of said rotor blade;
- and
- f) said out-of-compliance motion of said rotor blade is one or more of:
- i) a lead of said rotor blade ahead of said nominal motion of said rotor blade;
- ii) a lag of said rotor blade behind said nominal motion of said rotor blade;
- iii) an upward motion of said rotor blade above said nominal motion of said rotor blade;
- iv) a downward motion of said rotor blade below said nominal motion of said rotor blade;
- or
- v) a twist of said rotor blade away from said nominal motion of said rotor blade.
Dependencies are inferred from the claim text.