Pangan hot strip mill is a large plants for hot steel coil , it ’ s mainline automatic system is two levels , the level 1 is basic automatic control system , and level 2 is process control system , level 2 controls the furnace area 、 rough mill area and finish mill area , it ’ s main function is data traffic 、 steel rolling tracing 、 the model calculating for setup and the sampling for the rolling data . the process system will save a mass of data for model data 、 setup data and sampling data 攀钢热轧板厂是一座大型的热连轧钢板生产工厂,主轧线自动化系统采用2级控制结构,其中第1级是基础自动化控制系统,第2级是过程控制系统,主要完成从加热炉区、粗轧区、精轧卷取区的数据通信、轧件跟踪、加热和轧制模型参数设定计算以及轧制过程参数的采集等主要功能。
By means of the method of combining theoretic analysis with mathematic calculation , the mathematic model of medium mill ' s electromechanical twist vibration was established , the whole response of the system in transition process was obtained by the solution of the model , the clearance and skid of main transmission system were analyzed in rolling process , and they were studied with computer simulation 摘要采用理论分析和数值计算相结合的方法建立了中厚板轧机机电扭振数学模型，通过对该模型的求解，得到系统在过渡过程中的全部响应，且对轧机在轧制过程中的主传动系统的间隙和打滑两种状态进行了分析，并对此进行了计算机仿真研究。
Hot strip rolling is one of the important working procedures in steel & iron manufacture , the hot strip rolling procedure poses many unique characteristics , such as high precision control requirement , rapid responsibility , closed inter - relationship among working procedures , affected by multi - factors , relation which is complex , the movement rules which is non - linear 热连轧是钢铁厂生产过程中的重要工序之一,热连轧生产过程具有控制精度要求高、快速响应性要求高、整个轧制过程各工序相互关联性强、影响因素多、关系复杂、运行规律多呈现非线性变化的特征等特点。
The explicit finite element method ( fem ) based on the varying time - step was selected to analyse the dynamic roll - pass process ; the nodes on the leading face of the steady - state elements set was extracted and projected onto a plane to give the required mesh , also called the origin mesh ; the implicit fem was selected to analyses the inter - pass transient thermal process ; a geometric part from the mesh was generated and meshed by using the quadrilateral elements , a heat transfer analysis was selected to transfer the node temperature data ; a new model was created by using hexahedral elements , mapping the node temperature and the equivalent plastic strain on the integration points 利用基于变步长中心差分格式的显式积分方法分析瞬态轧制过程；提取稳态单元集节点形成截面网格；利用隐式积分方法分析轧制道次间隙瞬态温度场；对型钢断面进行平面四边形网格划分并映射节点温度数据；利用六面体单元构建有限元分析模型，映射单元节点的温度、积分点的等效塑性应变，进行数值分析。
