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轧制过程自动化
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  rolling process automation
     Fieldbus Technology and Rolling Process Automation
     现场总线技术与轧制过程自动化
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  “轧制过程自动化”译为未确定词的双语例句
     A review has been made on the functions of rolling automation system with the process control level and the basic automation devices described in detail.
     首先对轧制过程自动化系统的功能进行了评述,较为详细地说明了过程控制级和基础自动化。
  相似匹配句对
     Automation in a Fermentation Process
     发酵过程自动化
短句来源
     Fieldbus Technology and Rolling Process Automation
     现场总线技术与轧制过程自动化
短句来源
     Automation of High-Voltage Testing Process
     高压测试过程自动化
短句来源
     Investigation on Parameters in Asymmetrical Rolling Process
     非对称轧制过程的参数
短句来源
     Computer Simulation of Rolling for H Beam
     H型钢轧制过程的计算机仿真
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Strip rolling is a very complicated nonlinear process Thickness Control,generally named Automatic Gauge Control(AGC),is an important part in the rolling process automation,This paper presents a scheme of neural networks based adaptive AGC(NNA AGC),a network activation function suitable for control,and the improved training algorithm of backpropgation (BP).The simulation results show tthat the NNA AGC system has good performances of adaptively tracking target and resisting disturbances.It is proved that...

Strip rolling is a very complicated nonlinear process Thickness Control,generally named Automatic Gauge Control(AGC),is an important part in the rolling process automation,This paper presents a scheme of neural networks based adaptive AGC(NNA AGC),a network activation function suitable for control,and the improved training algorithm of backpropgation (BP).The simulation results show tthat the NNA AGC system has good performances of adaptively tracking target and resisting disturbances.It is proved that the new network activation function and the improved BP training algorithm practically applying to the requirement of process control.

板带材轧制过程是一个复杂的非线性过程,厚度自动控制(AGC)是轧制过程自动化的重要组成部分。提出一种基于神经网络的自适应厚度自动控制(NNA-AGC)方案,提出适于过程控制的网络激励函数和改进的BP网络训练算法。仿真结果表明:NNA-AGC系统具有良好的自适应跟随和抗扰性能;新的网络激励函数和训练算法切实满足过程控制的需要。

A roll eccentricity compensation control algorithm based on wavelet denoising was held up by using the difference of transmission characteristics of the maximum wavelet modulus between singular signal and random noise in multiscale space and a wavelet analyzer of roll eccentricity (WARE) was developed in this work. The novel algorithm can be used to replace a control algorithm of roll eccentricity compensation based on the fast Fourier transform which has the limitation of localized contridiction between time...

A roll eccentricity compensation control algorithm based on wavelet denoising was held up by using the difference of transmission characteristics of the maximum wavelet modulus between singular signal and random noise in multiscale space and a wavelet analyzer of roll eccentricity (WARE) was developed in this work. The novel algorithm can be used to replace a control algorithm of roll eccentricity compensation based on the fast Fourier transform which has the limitation of localized contridiction between time domain and frequency domain and can't deal with nonstationary signals. The simulation results showed that the WARE was superior to the FARE, MFFT and LS in improving thickness precision of rolling products and could reduce the influence of the back up roll eccentricity by more than 90 percent. The exploration of roll eccentricity compensation control based on wavelet analysis opens a new research direction to develop the control systems of high precision rolling mill, which has a practical meaning in designing new mills and transforming existing ones and is helpful in promoting the development of rolling process automatization.

由于以快速傅立叶变换为基础的轧辊偏心补偿控制算法具有时域和频域局部化矛盾的局限性 ,且不能处理非平稳信号 ,本文利用在小波变换下奇异信号和随机噪声在多尺度空间中的模极大值传递特性的不同 ,提出了一种基于小波消噪的轧辊偏心补偿控制算法 ,并设计了一种轧辊偏心的小波分析器 (WARE)。仿真研究表明 ,对于提高轧件的厚度精度 WARE优于轧辊偏心的傅立叶分析器 (FARE)和其改进算法 (MFFT和 L S算法 ) ,并可使轧辊偏心对厚度的影响减小 90 %。通过对基于小波分析的轧辊偏心补偿控制的探索 ,为开发高精度轧机控制系统指出了一个新的研究方向。它对设计新型轧机和改造旧轧机都具有现实意义 ,有利于促进轧制过程自动化的发展

The total numerical control system of four high reverse rolling mill for medium steel plates applies S7-400 programmable controller and 6RA24 total numerical DC speed controller produced by Germany SIM Company.The two level computer control system is composed of process computer and basic automatic control.In so doing,the automation of edge,flat and reverse rolling processes and the setup of process model are realized.In this way,the four high plate mill will be a large scale and total numerical automatic control...

The total numerical control system of four high reverse rolling mill for medium steel plates applies S7-400 programmable controller and 6RA24 total numerical DC speed controller produced by Germany SIM Company.The two level computer control system is composed of process computer and basic automatic control.In so doing,the automation of edge,flat and reverse rolling processes and the setup of process model are realized.In this way,the four high plate mill will be a large scale and total numerical automatic control equipment,which combined with higher rolling power,automatic control setup of rolling process and most powerful function of scientific experements.

中厚板四辊可逆式轧机全数字自动控制系统采用了德国西门子公司的S7—40 0可编程序控制器及 6RA2 4全数字直流调速器 ,由过程计算机和基础自动化控制组成了两级计算机控制系统 ,实现了立轧、平轧、可逆轧制过程的自动化以及工艺模型的设定 ,使中厚板四辊轧机成为一套综合轧制能力较高 ,具有轧制工艺过程自动控制设定和极强的科研实验功能的大型全数字自动化控制设备。

 
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