Tuned vibration noise reducer

Details Tuned vibration noise reducer Tuned vibration noise reducer

F - Mech Eng,Light,Heat,Weapons

16

F

F16F 15/02 (2006.01) F16F 7/10 (2006.01) F16M 1/00 (2006.01)

Patent

CA 2292543

A tuned additive mass to a body subjected to forced vibrations that reduces the vibration amplitudes. The mass is coupled to the body in a manner that establishes a node at the previous maximum response of the body to the applied forces. The mass is constructed to respond in a spring like manner so that vibration frequencies of the mass is tunable to provide counter vibrations in the vibration frequency band. Vibration amplitude reduction is established by vibrations of the mass that are in phase opposition to the vibrations of the body.

L'invention concerne une masse accordée (17) que l'on ajoute à un corps (13) soumis à des vibrations forcées, et qui réduit les amplitudes des vibrations. Cette masse est couplée au corps d'une manière établissant un noeud au niveau d'une réponse maximale précédente du corps aux forces appliquées. La masse est construite pour répondre à la manière d'un ressort, de façon que les fréquences des vibrations de cette masse puissent être accordées afin de constituer des contre vibrations dans la bande de fréquence des vibrations. La réduction des amplitudes des vibrations est établie par des vibrations de la masse qui sont en opposition de phase aux vibrations du corps.

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