Bearing with adjustable stiffness

Details Bearing with adjustable stiffness Bearing with adjustable stiffness

1988-09-12

1989-07-25

Footland, Lenard A.

Bearings

Vibratory (e.g., piezoelectric or kinetic bearing

384517, 384519, 384563, 384583, F16C 1908

Patent

active

048507199

ABSTRACT:
A variable stiffness bearing utilizing piezoelectric means for applying a variable preload force to the bearing. The preferred embodiment employs piezoelectric wafers having alternating power and ground connections to the wafers to allow the wafers to distort in direct proportion to the potentials applied. Increased potentials result in greater distortion, more preload force, and a stiffer bearing.

REFERENCES:
patent: 4593956 (1986-06-01), Caruso et al.
patent: 4613240 (1986-09-01), Hagelthorn
patent: 4657412 (1987-04-01), McLarty et al.
patent: 4727762 (1988-03-01), Hayashi

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