Self tuning motion/vibration suppression system

Details Self tuning motion/vibration suppression system Self tuning motion/vibration suppression system

1993-03-12

1994-08-02

Barefoot, Galen L.

Aeronautics and astronautics

Spacecraft

Attitude control

188378, 248550, 364508, B64G 138

Patent

active

053338197

ABSTRACT:
A vibration suppression system senses undesired mechanical motion of a body, and continuously drives a proof mass actuator system to reduce disturbances. An inertial or relative displacement sensor is processed to determine the energy content of the motion, and a correction signal is generated which is summed with the actuator drive signal to minimize the sensed motion energy. The position of the proof mass is sensed, and processed by differentiating and scaling, and the processed proof mass position signal is also summed with the actuator drive signal. The system causes the proof mass actuator loop natural frequency to tend to track the frequency associated with the maximum vibrational energy.

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patent: 3836098 (1974-09-01), Miyashita
patent: 4083433 (1978-04-01), Geohegan, Jr. et al.
patent: 4470121 (1984-09-01), Eberf
patent: 4483425 (1984-11-01), Newman
patent: 4922159 (1990-05-01), Phillips et al.
patent: 5131611 (1992-07-01), Vollaro
patent: 5209326 (1993-05-01), Harper

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