Supports – With condition responsive control means
Patent
1997-12-09
1999-07-20
Ramirez, Ramon O.
Supports
With condition responsive control means
188380, F16M 1300
Patent
active
059246707
ABSTRACT:
An apparatus for reducing vibration has a mount for attaching to a vibrating body, such as the frame of an aircraft. A plate is spaced from the mount with a mass there between. A first elastomeric ring is compressed between the mass and the mount, and a second elastomeric ring is compressed between the mass and the plate. The rings act as a spring having a stiffness that defines a resonant frequency at which the mass oscillates. Vibration in the body is reduced by the mass movement absorbing vibrational energy and the energy absorption is maximized when the mass resonates at the vibration frequency. A controller senses body vibration and operates a mechanism that alters the spacing between the mount and the plate thereby adjusting the spring stiffness. The stiffness of the spring is changed until the resonant frequency of the mass is tuned to the vibration frequency of the body.
REFERENCES:
patent: 4346793 (1982-08-01), Fuse et al.
patent: 5456341 (1995-10-01), Garnjost et al.
patent: 5695027 (1997-12-01), Von Flotow et al.
Bailey Donald C.
Jensen William
Park Chan
von Flotow Andreas H.
Applied Power Inc.
Ramirez Ramon O.
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