冷轧机垂直系统动态特性分析  

Analysis on Dynamic Characteristics of Cold Rolling Mill Vertical System

作　　者：胡传奇[1] 王志刚[1] 

机构地区：[1]武汉科技大学冶金装备及控制教育部重点实验室,湖北武汉430081

出　　处：《机械设计与制造》2016年第7期65-68,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(51405353;51475340);教育部新世纪人才支持计划资助项目(NCET-12-0715);省部共建耐火材料与冶金国家重点实验室开放基金(G201406);湖北省自然科学基金(2014CFB825)

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。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.

关 键 词：冷轧 轧制力 张力 摩擦因数 阻尼 

分 类 号：TH16[机械工程—机械制造及自动化] TG333[金属学及工艺—金属压力加工]