Vibration isolation

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

Patent

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F16F 15/03 (2006.01) F16F 7/10 (2006.01)

Patent

CA 2603946

A support for machinery, and for isolating vibration from the machinery, comprises a plurality of mounts, each mount comprising an elastomeric block for completely supporting the static load of the machinery, and active isolation means comprising inertial shakers arranged to maintain essentially a zero stiffness of the mount to excited structural resonances over a desired frequency band above said mount resonant frequency, and to modify the transmission of out of balance forces to the hull. A control system coupled to the inertial shakers includes a means for applying damping force signals, such as to dampen structural resonances, to inhibit the onset of resonant vibration.

La présente invention a trait à un support pour matériel, et pour l'isolation de vibration du matériel, comportant une pluralité de bâtis, chaque bâti comprenant un bloc élastomère pour le support total d'une charge statique du matériel, et un moyen d'isolation active comprenant des secoueurs à inertie agencés pour maintenir essentiellement une raideur nulle du bâti aux résonances structurelles excitées sur une bande de fréquence souhaitée supérieure à la résonance dudit bâti, et pour modifier la transmission de forces déséquilibrées à la coque. Un système de commande relié aux secoueurs à inertie comporte un moyen pour l'application de signaux de force d'amortissement, de manière à amortir les résonances structurelles, en vue d'empêcher l'apparition de vibration résonante.

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