Antiresonant suspension device for a helicopter

Details Antiresonant suspension device for a helicopter Antiresonant suspension device for a helicopter

1991-11-19

1993-03-02

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft, heavier-than-air

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

416500, 188379, 248559, B64C 2751, F01D 526, F04D 2966

Patent

active

051902443

ABSTRACT:
The suspension device is interposed between the rotor and the fuselage of the helicopter for filtering the vibration exciting forces and moments coming from the rotor. In this helicopter, a speed reducer (1) is provided in a housing mounted on the fuselage (22) by rigid oblique bars (28). According to the invention, there are disposed around the housing of the speed reducer, in a number equal to the number of rigid oblique bars (28), monodirectional antiresonant means (20,21,23,23a,23b,25) connecting the upper ends of the rigid oblique bars (28) to the speed reducer (1).

REFERENCES:
patent: 2411562 (1946-11-01), Thompson
patent: 3698663 (1972-10-01), Balke et al.
patent: 3921940 (1975-11-01), Mouille
patent: 4431148 (1984-02-01), Mouille
patent: 4458862 (1984-07-01), Mouille et al.
patent: 4720060 (1988-01-01), Yana

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