Vibration testing on rotating machine components

Details Vibration testing on rotating machine components Vibration testing on rotating machine components

1994-12-05

1996-09-10

Chapman, John E.

Measuring and testing

Vibration

Vibrator

73571, G01M 702

Patent

active

055535011

ABSTRACT:
A stack of piezoelectric crystals is placed on a shaft that is rotated to test a component on the shaft. An electrical signal is supplied to the stack, causing the crystals to vibrate, sending vibrations to the component as it spins. The component is enclosed in a vacuum chamber in order to provide a reduced pressure and thereby to reduce the power required to spin the component.

REFERENCES:
patent: 2384987 (1945-09-01), Dudley
patent: 2404965 (1946-07-01), Kilgore et al.
patent: 3067345 (1962-12-01), Harris
patent: 4240141 (1980-12-01), Vasiliev et al.

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