Actuator for an aircraft flight control surface

Details Actuator for an aircraft flight control surface Actuator for an aircraft flight control surface

1998-12-08

2000-07-04

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft control

244228, 31032303, 310328, B64C 1324

Patent

active

06082672&

ABSTRACT:
An actuator for a primary control surface of an air-craft, the actuator comprising at least one motor of the vibration type mounted in series with at least a second motor which is a piezoelectric, electrostrictive, or magnetostrictive actuator of the direct type, and further including control means causing one or both of the motors to operate in such a manner that the second motor drives movements of the control surface of the type used for stabilizing the aircraft, while the vibration drives movements of greater amplitude.

REFERENCES:
patent: 3021097 (1962-02-01), Hecht
patent: 3023985 (1962-03-01), Hong et al.
patent: 5001382 (1991-03-01), Umeda et al.
patent: 5626312 (1997-05-01), Head
patent: 5786653 (1998-07-01), Culp
patent: 5907211 (1999-03-01), Hall et al.
patent: 5912525 (1999-06-01), Kobayashi et al.
patent: 5986385 (1999-11-01), Atsuta
Chopra, I, "Development of a Smart Rotor", Proceedings of the European Rotorcraft Forum, Cernobbio, Italy, Sep. 14-16, 1993 vol. 2, No. Forum 19, Sep. 14, 1993, pp. N6-00-N6-18.
L'Usine Nouvelle, No. 2568, Oct. 31, 1996, pp. 52-53.
Air & Cosmos/Aviation International, vol. 1602, Feb. 28, 1997, pp. 20-21.

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