VERFAHREN UND VORRICHTUNG ZUR UNTERDRÜCKUNG VON SCHWINGUNGEN IN EINER WALZANLAGE

A method and an apparatus for suppression of oscillations in a rolling installation is described. By means of a hydraulic roller engagement third-octave oscillations are effectively suppressed, thus making it possible to improve the quality of the rolled material and/or the productivity of the rolling installation. A manipulated variable is supplied to an electrohydraulic actuating element that acts on at least one hydraulic actuator for the roller engagement and has a rated flow rate of 50 l/min. At least a portion of the frequency response at frequencies f 80 Hz has a magnitude drop of 3 dB, and the phase lag in this frequency range satisfies the conditions f 19·{square root over ( )}+3.1·10−6· 4 and