Multiple axis vibration test platform

Details Multiple axis vibration test platform Multiple axis vibration test platform

1988-05-03

1989-10-24

Chapman, John

Measuring and testing

Vibration

Vibrator

73667, B06B 300

Patent

active

048753742

ABSTRACT:
A multiple axis vibration test platform including a plurality of actuator arms connected to respective drive shafts with eccentric ball joints at first ends thereof, and at the opposite ends thereof to the bottom surface and side walls of the test platform with concentric ball joints. The eccentricity of the eccentric ball joint couplings correspond to the amplitude of vibration of the test platform along a respective axis of vibration. The ball joint couplings at each end of the actuator arms eliminate cross coupling of motion between the axes of vibration as the test platform is vibrated simultaneously in more than one axis.

REFERENCES:
patent: 3044292 (1962-07-01), Matthews
patent: 3277697 (1966-10-01), Wittkuhns
patent: 3712120 (1973-01-01), Fletcher et al.
patent: 4189249 (1980-02-01), Gaines et al.
patent: 4245705 (1981-06-01), Morita et al.
patent: 4265123 (1981-05-01), Cappel
patent: 4422334 (1983-12-01), Yasuda
patent: 4436188 (1984-03-01), Jones
patent: 4446742 (1984-05-01), Thompson, Jr. et al.

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