Brakes – Inertia of damping mass dissipates motion
Patent
1994-07-13
1996-03-05
Oberleitner, Robert J.
Brakes
Inertia of damping mass dissipates motion
416145, 464180, F16F 710
Patent
active
054959241
ABSTRACT:
A dynamic vibration absorber for a rotating machinery element preferably of the bifilar pendulum vibration absorber type wherein the absorber system includes one or more pair(s) of masses having identical paths of movement relative to the axis of the rotating element whose vibrations are being absorbed, the individual absorber masses of a given pair moving out-of-phase with respect to one another relative to the rotating element wherein a disturbance torque with a frequency that is a multiple of the rotation rate of the rotating element is absorbed by a one-half relative frequency motion of the corresponding half-order absorber pair. The half-order absorber pairs are driven primarily by centrifugal forces, move with a frequency one-half that of the disturbance torque and use non-linear Coriolis forces as the source of the counteracting torque.
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"Tautochronic Bifilar Pendulum Torsion Absorbers For Reciprocating Engines", H. H. Denman (Appendix B), Journal of Sound and Vibration, vol. 159, 1992, pp. 251-277.
SAE Technical Paper Series No. 911876 entitled "Reducing Vibration of Reciprocating Engines with Crankshaft Pendulum Vibration Absorbers", presented at International Off-Highway & Powerplant Congress and Exposition, Sep. 9-12, 1991, V. J. Borowski, H. H. Denman, D. L. Cronin, S. W. Shaw, J. P. Hanisko, L. T. Brooks, D. A. Mikulec and W. B. Crum, and M. P. Anderson.
Lee Cheng-Tang
Shaw Steven W.
Muratori Alfred
Oberleitner Robert J.
Quiescence Engineering Corp.
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