Antiresonant suspension device for helicopter

Details Antiresonant suspension device for helicopter Antiresonant suspension device for helicopter

1983-02-28

1984-07-10

Basinger, Sherman D.

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

188379, 248557, 248559, 416500, B64C 2706

Patent

active

044588623

ABSTRACT:
The invention relates to aeronautics in general, and in particular to a suspension device for helicopter, comprising a flexible mounting plate at the center of which is fixed the bottom of the main gear box whose top is supported by hinged oblique bars. The mounting plate offers radial arms hinged to the base of the bars and to the fuselage of the helicopter. These arms bear flapping weights creating forces of inertia with reactions at the attachment points of direction opposite the elastic reactions of deformation of the mounting plate. A device of this type enables the vibrations on board helicopters to be reduced.

REFERENCES:
patent: 1973510 (1934-09-01), Schieferstein
patent: 3502290 (1970-03-01), Legrand et al.
patent: 3972491 (1976-08-01), Ferris et al.
patent: 4088042 (1978-05-01), Desjardins
"Advanced Development of a Helicopter Rotor Isolation System for Improved Reliability", vol. 1, Summary Report, Kaman Aerospace Corp., Bloomfield, Conn. 06002, 12-1977, pp. 17/21.

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