Measuring and testing – Vibration – By mechanical waves
Reissue Patent
2011-03-08
2011-03-08
Saint Surin, J. M. (Department: 2856)
Measuring and testing
Vibration
By mechanical waves
C073S659000, C073S660000
Reissue Patent
active
RE042197
ABSTRACT:
A method for compensating for a mechanical oscillation which has a frequency spectrum which can be approximately represented by a number of discrete frequency components, at a machine shaft via at least one actuator acting directly or indirectly upon the machine shaft. At least upon one of the discrete frequency components of the mechanical oscillation is superposed by the actuator, independently of the other frequency components, at least one substantially harmonic torque of the same frequency having a specific amplitude and phase in such a manner that the amplitude of the oscillation of the machine shaft at the this frequency is reduced.
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Davidson Davidson & Kappel LLC
Heidelberger Druckmaschinen AG
Saint Surin J. M.
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