Electro-active vibration mount

F - Mech Eng,Light,Heat,Weapons – 16 – M

Patent

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Details

F16M 1/00 (2006.01) F16F 15/00 (2006.01) F16M 13/00 (2006.01)

Patent

CA 2282518

The active vibration mount (15) disclosed herein employs a multiplicity of layers (21) of an electrostrictive polyurethane film interleaved with electrodes (23). A majority of the layers are employed as an output transducer (27) while at least one layer is employed as a sensor generating a force- induced voltage. Accordingly, a feedback controller (51) responsive to that voltage can energize the output transducer (27) thereby to reduce the vibratory force transmitted through the mount (15) over a preselectable range of frequencies while the mount (15) supports a static load.

Ce support à vibrations actif (15) utilise plusieurs couches(21) d'un film de polyuréthane électrostrictif entrelacées avec des électrodes (23). Une majeur partie de ces couches est utilisée comme comme transducteur de sortie (27), tandis qu'au moins une des dites couches est utilisée comme capteur générant une tension induite par une force. Ainsi, un contrôleur de réaction (51) réagissant à cette tension peut exister le transducteur de sortie (27) réduisant ainsi la force vibratoire transmise à travers le support (15) dans une plage de fréquences pré-sélectionnable, pendant que ledit suppport (15) soutient une charge statique.

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