Shaft dampening apparatus

Details Shaft dampening apparatus Shaft dampening apparatus

1981-04-13

1983-09-27

Gilreath, Stanley N.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Shafting

Particular vibration dampening or balancing structure

74574, F16F 1510

Patent

active

044066422

ABSTRACT:
An electrically conductive ring is secured to a rotating shaft electrically insulated therefrom at or near the shaft location at which the maximum amplitude of lateral vibration is anticipated. Providing a transverse magnetic field contiguous to the ring periphery is at least one pair of spaced magnets. The magnetic field imposed by the magnets is effective when vibrationally penetrated by the ring to induce an electrical current in the ring causing energy dissipation that repels the amplitude of the shaft.

REFERENCES:
patent: 2320721 (1943-06-01), Ericson
patent: 2520582 (1950-08-01), Tustin
patent: 2951955 (1960-09-01), Crowder
patent: 3336818 (1967-08-01), Allen
patent: 3786694 (1974-01-01), Willeitner
patent: 4072370 (1978-02-01), Waason
patent: 4079274 (1978-03-01), Richmond
patent: 4200003 (1980-04-01), Miller

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