三辊张力装置增张能力的数值模拟分析

来源期刊：钢铁2009年第7期

论文作者：许石民 黄华贵 臧新良 杜凤山 蒋松

文章页码：53 - 57

关键词：三辊张力装置； 张力调节； 弹塑性有限元法； BP神经网络

Key words：three-rolls tension unit； tension adjusting； elastic-plastic FEM； BP neural network

摘    要：张力调节是板带材生产工艺中的重要环节,为研究平整分卷线上三辊张力装置的增张机理和张力调节能力,采用弹塑性有限元方法对其工作过程进行数值模拟,得到了板厚、开卷张力、上张力辊压下量和设备结构参数等对张力装置增张能力的影响规律。将有限元模拟结果作为训练样本,结合国内某厂实测数据,建立了三辊张力装置增张能力的BP神经网络预测模型,预测结果与实测数据吻合良好,实现了张力调节定量控制。

Abstract: The tension adjusting and controlling is an important process in the plate & strip production technology.In order to investigate the tension enhanced behavior and tension adjusting ability of three-rolls tension unit in skin pass mill,a numerical simulation model for tension enhanced process of the tension unit was setup with elastic-plasticity finite element method.From the simulation results,the influence of strip thickness,uncoil tension,depress of top tension roll on the amount of tension enhanced by the tension unit was achieved.Taking the simulation results as training samples,a tension enhanced ability prediction model for the three-rolls tension unit based on BP artificial neural network was presented.The prediction results are perfect corresponded with the actual measurement data acquisitive from a skin pass mill and dividing line which makes tension adjusting and quantitative controlling for the tension unit possible.