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    • 1. 发明授权
    • Method and apparatus for suppression of oscillations in a rolling installation
    • 用于抑制轧制设备中振荡的方法和装置
    • US08695391B2
    • 2014-04-15
    • US12999365
    • 2009-05-07
    • Georg KeintzelGerald Hohenbichler
    • Georg KeintzelGerald Hohenbichler
    • B21B37/00B21B31/32
    • B21B37/007
    • 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 φ in this frequency range satisfies the conditions f≧19·{square root over (φ)}+3.1·10−6·φ4 and φ
    • 描述了一种用于抑制轧制设备中的振荡的方法和装置。 通过液压辊接合,可以有效地抑制三次倍频程振动,从而可以提高轧制材料的质量和/或轧制设备的生产率。 将操作变量提供给电动液压致动元件,其作用于用于辊接合的至少一个液压致动器,并且具有≥50l/ min的额定流量。 频率f≥80Hz的频率响应的至少一部分具有幅度下降&nlE; 3dB,相位滞后&amp; 在这个频率范围内满足条件f≥19·{平方根超过(&phgr。)} + 3.1·10-6·&phgr。4和&phgr; <90°。
    • 2. 发明申请
    • METHOD AND APPARATUS FOR SUPPRESSION OF OSCILLATIONS IN A ROLLING INSTALLATION
    • 在滚动安装中抑制振荡的方法和装置
    • US20110120202A1
    • 2011-05-26
    • US12999365
    • 2009-05-07
    • Gerald HohenbichlerGeorg Keintzel
    • Gerald HohenbichlerGeorg Keintzel
    • B21B37/00
    • B21B37/007
    • 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 φ in this frequency range satisfies the conditions f≧19·{square root over (φ)}+3.1·10−6·φ4 and φ
    • 描述了一种用于抑制轧制设备中的振荡的方法和装置。 通过液压辊接合,可以有效地抑制三次倍频程振动,从而可以提高轧制材料的质量和/或轧制设备的生产率。 将操作变量提供给电动液压致动元件,其作用于用于辊接合的至少一个液压致动器,并且具有≥50l/ min的额定流量。 频率f≥80Hz的频率响应的至少一部分具有幅度下降&nlE; 3dB,相位滞后&amp; 在这个频率范围内满足条件f≥19·{平方根超过(&phgr。)} + 3.1·10-6·&phgr。4和&phgr; <90°。
    • 3. 发明申请
    • METHOD AND DEVICE FOR ACTIVELY SUPPRESSING PRESSURE OSCILLATIONS IN A HYDRAULIC SYSTEM
    • 用于动态地抑制液压系统中的压力振荡的方法和装置
    • US20120000543A1
    • 2012-01-05
    • US13132715
    • 2009-11-30
    • Georg KeintzelAnton Pirko
    • Georg KeintzelAnton Pirko
    • F17D3/00F16L55/04
    • F16L55/05B21B37/62F15B21/008F15B2211/6313F15B2211/8613Y10T137/0379
    • In a method and a device for actively suppressing pressure oscillations or pressure pulses in a hydraulic system of a cold or warm roll train or a strip treatment installation, the following method steps are carried out: a) detection of a pressure signal by means of a pressure sensor by permanent measurement of a pressure in the hydraulic system; b) determination of an alternating component of the pressure signal; c) determination of at least one temporally changing actuating variable in real time with the aid of a regulator, taking at least one setpoint value and the alternating component into consideration; d) loading of at least one actuator with the actuating variable, the actuator changing a volume which corresponds to the actuating variable and is connected to the hydraulic system, as a result of which the pressure oscillations in the hydraulic system are suppressed.
    • 在用于主动抑制冷或热轧机组或钢带处理装置的液压系统中的压力振荡或压力脉冲的方法和装置中,执行以下方法步骤:a)通过以下步骤检测压力信号: 压力传感器通过永久测量液压系统中的压力; b)确定压力信号的交替分量; c)借助调节器实时确定至少一个暂时变化的致动变量,考虑至少一个设定点值和交替分量; d)至少一个致动器与致动变量的装载,致动器改变对应于致动变量并且连接到液压系统的体积,结果液压系统中的压力振荡被抑制。