英语翻译2.6.3 ROLL ECCENTRICITY CONTROLRoll Eccentricity Control,REC,is used when operating the Roll Force Cylinders (RFC) in position control to eliminate the effects of roll eccentricity being imprinted into the material.The roll eccentricity c

英语翻译2.6.3 ROLL ECCENTRICITY CONTROLRoll Eccentricity Control,REC,is used when operating the Roll Force Cylinders (RFC) in position control to eliminate the effects of roll eccentricity being imprinted into the material.The roll eccentricity c
英语翻译
2.6.3 ROLL ECCENTRICITY CONTROL
Roll Eccentricity Control,REC,is used when operating the Roll Force Cylinders (RFC) in position control to eliminate the effects of roll eccentricity being imprinted into the material.
The roll eccentricity compensation signal is generated out of the periodically occurring force or exit thickness changes.It is very important that only the pure force or thickness deviations coming from the roll eccentricity are used for the analysis and generation of the compensation signal.Therefore it is necessary to clearly separate the force or exit thickness deviations into portions coming from the entry thickness (with installed entry thickness gauge only),from the entry strip tension,from the exit strip tension,from periodically occurring correction signals from other thickness controllers or from the roll eccentricity.Only the error portion coming from the roll eccentricity is to be used for the roll eccentricity compensation.
The integral control analyses the effect of the roll stack eccentricity on measurable mill parameters,such as roll force,and builds up a correction which may be applied to the roll force cylinders in order to compensate for the roll eccentricity present.Signal variations due to eccentricity can be analysed and decomposed into their harmonic components using Fourier analysis.This method decomposes a measured signals waveform into a series of sine and cosine components.Once identified these components can be used to construct an eccentricity compensation by identifying those waveforms which are synchronous with the rotation of the Back Up Rolls.To be effective the analysis is taken to the first three harmonics.
The schematic for the roll eccentricity implementation to be used is given below.
There are two sets of Fourier resonators,one for the top backup roll and a separate set for the bottom backup roll.The top and bottom resonator corrections are summed with the eccentricity predictor correction to give the total eccentricity correction outputs,one for the drive side and one for the non-drive side.Each controller may be fed from any of the signal paths shown to optimise the effect of the eccentricity control.

英语翻译2.6.3 ROLL ECCENTRICITY CONTROLRoll Eccentricity Control,REC,is used when operating the Roll Force Cylinders (RFC) in position control to eliminate the effects of roll eccentricity being imprinted into the material.The roll eccentricity c
2.6.3轧辊偏心控制
轧辊偏心控制,建议,操作时使用的轧辊部队气瓶文档（ RFC ）的位置控制,以消除影响的轧辊偏心被印到的材料.
在轧辊偏心补偿信号的生成出定期发生武力或出口厚度的变化.这是非常重要的,只有纯武力或厚度偏差来自轧辊偏心用于分析和生成的补偿信号.
因此,有必要明确分开的武力或退出厚度偏差到部分来自入境厚度（与安装进入测厚仪只） ,从入门地带的紧张局势,从出口地带的紧张局势,从定期校正信号发生其他厚度控制器或从轧辊偏心.只有错误部分来自轧辊偏心是用于轧辊偏心补偿.
分析的整体控制作用的叠加偏心辊轧机的衡量参数,如辊力量,建立了校正可用于轧辊力缸,以弥补目前的轧辊偏心.信号变化由于偏心可以进行分析和分解成它们的谐波成分使用傅里叶分析.
这种方法有节制的信号分解成一系列的波形正弦和余弦的组成部分.一旦确定这些组件可以用来建立一个偏心补偿查明这些波形这是同步的轮换后备名册.为了有效的分析是采取前三谐波.
示意图的轧辊偏心执行用于如下.
有两套的Fourier谐振器,一个用于顶端备份卷和一套单独的底部支撑辊.顶部和底部谐振更正总结与偏心率的预测校正,使总偏心校正输出,一个用于驱动器一侧的非驱动端.
每个控制器可能是美联储的任何信号路径的优化显示效果的偏心控制.