Method and apparatus for minimizing vibration

Details Method and apparatus for minimizing vibration Method and apparatus for minimizing vibration

1991-05-20

1993-09-07

Ruggiero, Joseph

Boots, shoes, and leggings

364400, 364508, 364574, G05B 1304

Patent

active

052435121

ABSTRACT:
Vibration of a system such as a motor and pump on a platform or a transformer is minimized by applying a compensating force to the system. The optimum compensating force is determined by measuring the initial vibration and using that measurement in one of three algorithms to determine an adjustment to be made to the compensating force applied to the system at the time the initial vibration was measured. The adjusted compensating force is applied to the system which changes the vibration. That vibration is measured and applied to the selected algorithm to determine a second adjustment to the compensating force. The process is repeated until a compensating force is found which produces zero vibration, minimum vibration or a desired vibration. A plurality of sensors for measuring vibration and a plurality of actuators for applying a compensating force are preferably used.

REFERENCES:
patent: 4025724 (1977-05-01), Davidson, Jr. et al.
patent: 4435751 (1984-03-01), Hori et al.
patent: 4525791 (1985-06-01), Hagiwara et al.
patent: 4600863 (1986-07-01), Chaplin et al.
patent: 4821205 (1989-04-01), Schutten et al.
patent: 4956789 (1990-09-01), Hamada et al.
GGP Chaplin, "The Cancellation of Repetitive Noise and Vibration by Active Methods"; Date Unknown.
NCI Brochure entitled "Electronic Attenuation of Noise and Vibration"; Date Unknown.
NCI Product Sheet entitled Noise Cancellation Technologies' NCT 2000; 1987.

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