Device for the active damping of the vibrations experienced...

Details Device for the active damping of the vibrations experienced... Device for the active damping of the vibrations experienced...

2006-12-29

2011-10-18

San Martin, Jaydi (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C181S206000, C181S207000, C181S208000, C181S209000, C381S071100, C381S071200, C381S071700, C381S071300, C381S071500

Reexamination Certificate

active

08040021

ABSTRACT:
A device for damping of vibrations for an item of equipment comprising a structure to which a first element and a second fragile element having to be protected from the vibrations are coupled. The device comprises first piezoelectric transducer means inserted between the structure and the first element and charged with converting energy of vibration of the structure into electric energy, at least one sensor coupled to the structure and arranged to deliver measurement signals representative of vibrations, control means electrically supplied by the electric energy generated and charged with deducing at least one amplitude of movement to compensate at least partially for the vibration, and to deliver control signals representative of each determined amplitude, and second piezoelectric transducer means inserted between the structure and the second element and charged with converting the control signals into movement to damp at least partially for the second element the vibrations.

REFERENCES:
patent: 5734246 (1998-03-01), Falangas
patent: 6533257 (2003-03-01), Clark
patent: 6995496 (2006-02-01), Hagood et al.
patent: 1170524 (2002-01-01), None
patent: 1422440 (2004-05-01), None
patent: 2677415 (1992-12-01), None

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