| 1. | The hydraulic bending roll control system based on the generalized predictive control 基于广义预测控制的液压弯辊控制系统 |
| 2. | An independent module of work roll bending compensation is set in the feedback control system 在反馈控制环节中专门设置一个独立运行的模块,即工作辊弯辊补偿控制模块。 |
| 3. | Hydraulic bend roller is the basic segment of afc system . its dynamic and static characteristic is important to the whole afc . for this a neural network imc strategy is applied 液压弯辊是板形控制系统( afc )最基本的环节,它的动态特性和稳态性能对于整个afc系统的性能起着至关重要的作用。 |
| 4. | Theoretically the varying contact rolling technology can increase the transverse stiffness of loaded roll gap , heighten the control effect of roll bending , improve the distribution of contact force between backup roll and work roll 从理论上分析了变接触轧制技术在提高承载辊缝横向刚度、增加弯辊力调控功效、改善辊间接触压力分布方面的作用。 |
| 5. | The work roll bending on five stands are adjusted based on the periodical change of work roll shift position to decouple the coupling between edge drop and flatness control and obtain the optimum flatness control 该模块根据5个机架的工作辊轴向位置的变化周期性随动调整5个机架的工作辊弯辊,化解平坦度和边降的耦合关系,以获得最佳的板形控制效果。 |
| 6. | It is known that the dynamic characteristic and stability of hydraulic pressure bend roller has key action on the whole afc system ( primary means quick regulation and transition interval ) . for the nonlinear , time varying and uncertainty existing in the hydraulic 将其用于液压弯辊系统,仿真结果表明该系统的性能良好,鲁棒性强,优于常规imc系统,这类智能控制器适合于对象参数变化、模型不确定和非线性的控制。 |
| 7. | And its nnc and nni are both established with the optimal neural network . so the hydraulic bend roller system ' s dynamic response velocity and static tracking precision are advanced . hydraulic bend roller force can operate better and mill ' s dynamic characteristic is improved 将优化网络用于液压弯辊系统的控制中,采用内模控制方案,辨识器和控制器用优化网络来离线设计、在线调整,提高了液压弯辊系统的动态响应速度和稳态跟踪精度,充分发挥了液压弯辊力对板形的调整作用,改善了轧机系统的动态特性。 |
| 8. | Works on the bending roll system of four - roll rolling mill , the workroll shape variation caused by the force of bending roll and the contact stress between rolls was researched with the fem software ansys , the maximum deformation of the work roll was calculated , and the curve of the gap adopting the least - squares method was fitted , which set the base of the further calculation of load - gap shape 摘要以四辊轧机的弯辊系统为研究对象,利用有限元分析软件ansys研究弯辊力和辊间接触应力引起工作辊形状的变化,计算工作辊弯曲的最大变形量,并用最小二乘法对辊缝曲线进行拟合,为进一步计算有载辊缝形状提供可靠的理论依据。 |