Method and system for controlling helicopter vibrations
First Claim
1. A vibration canceling force generator for actively generating a vibration canceling force, said vibration canceling force generator comprising:
- a resonant actuator having a natural resonant frequency, and a resonant actuator electronic control system having a command input for receiving a command signal, said resonant actuator electronic control system providing an electrical drive current to said resonant actuator to drive said resonant actuator about said resonant frequency when commanded by a received command signal, said resonant actuator having a feedback output, said feedback output fed back into said resonant actuator electronic control system wherein said resonant actuator electronic control system adjusts said electrical drive current based on said resonant actuator feedback output to generate said vibration canceling force.
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Abstract
A method/system for controlling helicopter vibrations is provided that includes a vibration canceling force generator for actively generating a vibration canceling force. The system includes a resonant actuator having a natural resonant frequency and a resonant actuator electronic control system. The resonant actuator electronic control system provides an electrical drive current to the resonant actuator to drive the resonant actuator about the resonant frequency when commanded by a received command signal. The resonant actuator has a feedback output with the feedback output fed back into the resonant actuator electronic control system wherein the resonant actuator electronic control system adjusts the electrical drive current based on the resonant actuator feedback output to generate the vibration canceling force.
58 Citations
50 Claims
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1. A vibration canceling force generator for actively generating a vibration canceling force, said vibration canceling force generator comprising:
- a resonant actuator having a natural resonant frequency, and a resonant actuator electronic control system having a command input for receiving a command signal, said resonant actuator electronic control system providing an electrical drive current to said resonant actuator to drive said resonant actuator about said resonant frequency when commanded by a received command signal, said resonant actuator having a feedback output, said feedback output fed back into said resonant actuator electronic control system wherein said resonant actuator electronic control system adjusts said electrical drive current based on said resonant actuator feedback output to generate said vibration canceling force.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of making a vibration canceling force generator, said method comprising the steps of:
- providing a resonant actuator having a natural resonant frequency, providing a resonant actuator electronic control system having a command input for receiving a command signal and a power amplifier for providing an electrical drive current to drive said resonant actuator, connecting said resonant actuator with said resonant actuator electronic control system wherein said resonant actuator electronic control system electrical drive current drives said resonant actuator about said natural resonant frequency when commanded by a received command signal, with said resonant actuator feeding an electrical output back into said resonant actuator electronic control system wherein said resonant actuator electronic control system adjusts said electrical drive current based on said resonant actuator electrical output.
- View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method of controlling vibrations, said method comprising the steps of:
- providing a resonant actuator having a natural resonant frequency, providing a resonant actuator electronic control system for providing an electrical drive current to drive said resonant actuator, connecting said resonant actuator with said resonant actuator electronic control system, driving said resonant actuator about said natural resonant frequency with said resonant actuator feeding an electrical output back into said resonant actuator electronic control system and adjusting said electrical drive current based on said resonant actuator electrical output.
- View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A vehicle vibration canceling system, said vehicle vibration canceling system comprising:
- a resonant actuator having a natural resonant frequency, and a resonant actuator electronic controller, said resonant actuator electronic controller providing an electrical drive current to said resonant actuator to drive said resonant actuator about said resonant frequency, said resonant actuator having a feedback electrical output, said feedback electrical output fed back into said resonant actuator electronic controller wherein said resonant actuator electronic controller adjusts said electrical drive current based on said resonant actuator feedback electrical output.
- View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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36. A method of making a helicopter vibration canceling system, said method comprising the steps of:
- providing a resonant actuator having a natural resonant frequency, providing a resonant actuator electronic control system for providing an electrical drive current to drive said resonant actuator, connecting said resonant actuator with said resonant actuator electronic control system wherein said resonant actuator electronic control system electrical drive current drives said resonant actuator about said natural resonant frequency, with said resonant actuator feeding an electrical output back into said resonant actuator electronic control system wherein said resonant actuator electronic control system adjusts said electrical drive current based on said resonant actuator electrical output.
- View Dependent Claims (37, 38, 39, 40, 41, 42)
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43. A method of controlling helicopter vibrations, said method comprising the steps of:
- providing a resonant actuator having a natural resonant frequency, mounting said resonant actuator in a helicopter, providing a resonant actuator electronic control system for providing an electrical drive current to drive said resonant actuator, connecting said resonant actuator with said resonant actuator electronic control system, driving said resonant actuator about said natural resonant frequency with said resonant actuator feeding an electrical output back into said resonant actuator electronic control system and adjusting said electrical drive current based on said resonant actuator electrical output.
- View Dependent Claims (44, 45, 46, 47, 48, 49, 50)
Specification