Active piezo-electric vibration isolation and directional system

Details Active piezo-electric vibration isolation and directional system Active piezo-electric vibration isolation and directional system

1995-05-16

1998-03-31

Cabeca, John W.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318114, 310311, 310348, 248638, 248559, B64C 1706, F16M 1300

Patent

active

057342466

ABSTRACT:
Piezoelectric actuators bonded on S-shaped brackets extending between a support and a payload, improve vibration isolation therebetween by attenuating resonant vibrations under computer dynamic control relying on predetermined dynamic resonant characteristics and H-Infinity control methods. The system can also be used for pointing the attitude of a payload on a supporting platform. Bonded piezoelectric ceramic actuators bend aluminum portions of the brackets to adjust the attitude and position of the payload respecting the support well suited for improved optical communications, observation and telemetry. The system is enables concurrent vibration isolation and directional control.

REFERENCES:
patent: 4730541 (1988-03-01), Greene
patent: 5251863 (1993-10-01), Gossman et al.
patent: 5321923 (1994-06-01), Oda
patent: 5327061 (1994-07-01), Gullapalli
patent: 5414775 (1995-05-01), Scribner et al.
patent: 5446519 (1995-08-01), Makinouchi
patent: 5478043 (1995-12-01), Wakui

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