Brakes – Inertia of damping mass dissipates motion – Resiliently supported damping mass
Patent
1997-02-10
2000-01-04
Butler, Douglas C.
Brakes
Inertia of damping mass dissipates motion
Resiliently supported damping mass
267136, F16F 710
Patent
active
060099852
ABSTRACT:
An Active Vibration Absorber assembly (20) including a casing (24), a first tuning mass (32) supported relative to the casing (24) which is actively vibratable by a force generator (40) in a first direction (along an A--A axis), a second tuning mass (32') supported relative to said casing (24) which is actively vibratable by a force generator (40') in a second direction (along axis B--B) generally orthogonal to the first direction, and a flexible member (26) flexibly supporting the casing (24). In a first embodiment, the tuning masses (32, 32') are vibratable by a magnet and coil assembly within shakers (25, 25') and the flexible member (26) is a beam. In other embodiments, multiple beams are employed to restrict the vibration of casing (24) to substantially planar motion. The AVA assembly (20) finds application in Active Structural Control (ASC) systems for actively canceling vibration or noise in vehicle cabins (example: automobiles, aircraft).
REFERENCES:
patent: 3487888 (1970-01-01), Adams et al.
patent: 3490556 (1970-01-01), Bennett, Jr. et al.
patent: 4470121 (1984-09-01), Ebert
patent: 4715559 (1987-12-01), Fuller
patent: 5052529 (1991-10-01), Sutcliffe et al.
patent: 5174552 (1992-12-01), Hodgson et al.
patent: 5231336 (1993-07-01), van Namen
patent: 5310137 (1994-05-01), Yoerkie, Jr. et al.
patent: 5526292 (1996-06-01), Hodgson et al.
patent: 5551650 (1996-09-01), Southward et al.
(Abstract) Institute of Electrical Engineers, Pratt, Oueini and Nayfeh, "A Terfenol-D Nonlinear Vibration Absorber", Smart Structures and Materials 1997: Smart Structures and Integrated Systems, vol. 3041, pp. 56-66.
Butler Douglas C.
Lord Corporation
Rupert Wayne W.
Wayland Randall S.
LandOfFree
Efficient multi-directional active vibration absorber assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Efficient multi-directional active vibration absorber assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Efficient multi-directional active vibration absorber assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1065552