中文摘要：

通过对冷轧轧制过程的分析,建立了轧机的六自由度结构模型,在Bland-Ford-Hill轧制力模型的基础上,分析了张力波动和摩擦因数波动对轧制力的影响,推导出振动状态下含有阻尼因素的轧制力动态模型,并利用Newmark法对轧制界面的阻尼变化进行了仿真。结果表明,张力波动产生的负阻尼会降低垂直系统的稳定性,而轧制界面存在润滑状态时,摩擦因数波动产生的正阻尼会增强垂直系统的稳定性,系统的稳定性是由张力造成的负阻尼和摩擦因数造成的正阻尼两者共同作用来决定的。

英文摘要：

The six degree of freedom structure model of the rolling mill is established by analyzing the cold rolling process. Based on the Bland-Ford-Hill rolling force model, the dynamic model of rolling force is deduced by analyzing the influence of tension fluctuation and friction factor, and simulates the damping of the rolling inteoCace by Newmark method. The results show that the negative damping caused by the tension fluctuation can decrease the stability of the vertical system, and the positive damping of the friction factor fluctuation can enhance the stability of the vertical system. The stability of the vertical system is determined by the negative damping caused by the tension and the positive damping caused by the friction factor.