Brakes – Inertia of damping mass dissipates motion
Patent
1997-10-24
1999-09-21
Butler, Douglas C.
Brakes
Inertia of damping mass dissipates motion
248550, 267136, 26714015, 244 54, 244 1727, 244 1N, 2441291, 415119, 381 711, 188380, B64D 2700, F16F 710
Patent
active
059541695
ABSTRACT:
A flex-plate tuned vibration absorber (35) including a tuned mass (43) flexibly suspended by one or more flex plates (58). In one aspect the tunable vibration absorber (TVA) (35) is adaptive in that the position of the mass is adaptively moveable with respect to its initial position, thereby effectuating a change in the TVA's resonant frequency. In one embodiment, the tuned mass (43) moves along a rigid frame (53). In another, movement of the mass (43) statically stresses a preferably disc-shaped flexible plate (58) thereby changing its stiffness. Preferably, a reducer (78) gears down the speed of the motor (64). In another aspect, a TVA system includes a base sensor (40) providing a base vibration signal, a mass sensor (38) for providing a vibration signal of the tuned mass (43), and an electronic controller (42) for generating a control signal to the TVA (35). The TVA finds application for absorbing vibration in vibrating structures, such as in aircraft.
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Harmonic Drive Technologies Pancake Component Gear Sets Brochure for Part HDF20.
Butler Douglas C.
Lord Corporation
Wayland Randall S.
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