Flexbeam helicopter rotor with improved snubber-vibration damper

Details Flexbeam helicopter rotor with improved snubber-vibration damper Flexbeam helicopter rotor with improved snubber-vibration damper

1990-04-06

1992-03-03

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

416140, 416141, B64C 2735

Patent

active

050927388

ABSTRACT:
A flexbeam helicopter rotor having an improved snubber-vibration damper for positioning the flexbeam spar relative to the torque tube, wherein the snubber-damper is an elastomeric bearing having a spherical and a flat portion, and whose laminates are continuous, selectively preloaded and of selected material to provide increased fatigue life, size reduction, reduced laminate stress concentration, and reduced critical design stress in the snubber-vibration damper.

REFERENCES:
patent: 3932059 (1976-01-01), Rybicki
patent: 4087203 (1978-05-01), Ferris
patent: 4093400 (1978-06-01), Rybicki
patent: 4222709 (1980-09-01), Mouille
patent: 4244677 (1981-01-01), Noehren et al.
patent: 4273511 (1981-06-01), Mouille et al.
patent: 4427340 (1984-01-01), Metzger et al.
patent: 4690615 (1987-09-01), Kuntz-Fechner et al.
patent: 4690616 (1987-09-01), Hahn et al.
patent: 4778343 (1988-10-01), Hahn et al.
patent: 4893988 (1990-01-01), Sato
patent: 4895354 (1990-01-01), Byrnes

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