Torsible, flexible linking arm with integrated flexion damping,

Details Torsible, flexible linking arm with integrated flexion damping, Torsible, flexible linking arm with integrated flexion damping,

1988-06-02

1989-04-18

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416140, 416141, 2671401, B64C 2738

Patent

active

048222453

ABSTRACT:
The torsible, flexible linking arm with integrated flexion damping according to the invention includes, between two rigid end portions, a flexible central portion constituted by a peripheral bundle (6) of rods (8) of fibres with high mechanical strength encapsulated in a flexible, vulcanized elastomer (9), and by a central damping core (7) with a strip (13) shearing a damping gel (12) filling a tight, flexible bladder (11) embedded in the elastomer (9). When deformations occur in the plane of the strip (13), the latter shears the gel (12), which produces damping that is added to that resulting from the deformation remanence of the elastomer (9). Application to the linking of two rigid bodies such as a rotor blade and its hub.

REFERENCES:
patent: 3669566 (1972-06-01), Bourquardez et al.
patent: 3758230 (1973-09-01), Potter
patent: 3765267 (1973-10-01), Bourquardez et al.
patent: 3923419 (1975-12-01), Mouille
patent: 4227858 (1980-10-01), Donguy
patent: 4386989 (1983-06-01), Aubry
patent: 4566677 (1986-01-01), Pierres
patent: 4593889 (1986-06-01), Odobasic
patent: 4627635 (1986-12-01), Koleda
patent: 4666372 (1987-05-01), Avila et al.
patent: 37628343 (1973-10-01), Bourquardez et al.

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