中文摘要：

振动是轧钢生产过程中普遍存在的问题，而扭振是对轧机及其驱动系统造成破坏性损坏的一种振动．产生扭振的原因很多．但其关键因素是传动装置上的外加扰动．将这些扰动归结为系统模型的不确定性．进而可采用预测控制的方法来抑制扭振．仿真结果表明．具有约束的预测控制不仅能够保证系统的控制性能，而且能较好地消除扭振对轧机的破坏作用．

英文摘要：

Vibration is a ubiquitous problem in steel rolling process. Torsional vibration is a devastating vibration to roll mill and drive trains. The torsional vibration is aroused by many r disturbances. Therefore, the external disturbances are come down to the control is applied to suppress torsional vibration, The simulation results improves the dynamic performance and suppresses the torsional vibration easons in which the key factor is external uncertainty of model, and robust predictive show that the constraint predictive control of the rolling mill system.