Random vibration generator

Details Random vibration generator Random vibration generator

1978-07-17

1979-08-14

Kreitman, Stephen A.

Measuring and testing

Vibration

Vibrator

B06B 110

Patent

active

041641515

ABSTRACT:
A random vibration generator includes a hollow tabletop for supporting equipment to be subjected to vibration, and a sinusoidal reaction-type vibration machine connected to the tabletop to produce a sinusoidal vibration of adjustable frequency and amplitude. The hollow tabletop is horizontally divided into four sections, each containing a number of projectiles such as heavy balls which roll and bounce about within the compartments in the tabletop, impacting with the floor and ceiling of the compartment and with each other in a random fashion to produce random shocks over a wide band of frequency and amplitude, and subject the equipment to every possible vibration failure mode that might occur in nature.

REFERENCES:
patent: 3037378 (1962-06-01), Hill
patent: 3369393 (1968-02-01), Farmer

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