Patent ID: 8695391

Claim:
A method for suppression of third-octave oscillations in a rolling installation having at least one rolling stand with roller engagement and having at least one roller set, the method comprising: supplying at least one measured variable of the rolling installation to a regulator; determining in real time with the aid of the regulator a manipulated variable which varies over time; keeping at defined nominal values controlled variables by at least one actuator acting on the roller engagement; supplying the manipulated variable to an electrohydraulic actuating element; the actuating element acting on at least one hydraulic actuator for the roller engagement, wherein the electrohydraulic actuating element has a rated flow rate of ≧50 l/min, and at least a portion of the frequency response at frequencies f≧80 Hz has a magnitude drop of ≦3 dB, and the phase lag φ in this frequency range satisfies the conditions f≧19·{square root over (φ)}+3.1·10 −6 ·φ 4 and φ<90°.