工程科学学报Issue(8)：1084-1091,8.DOI:10.13374/j.issn2095-9389.2015.08.017
冷轧带钢局部高点卷取过程起筋控制的建模与仿真
Modeling and simulation of ridge-buckle control in the coiling process of cold rolling strips with local high points
摘要
Abstract
In order to research the ridge-buckle control method in the coiling process of steel strips with local high points, elasto-plastic stress and ridge-buckle models are established by using the theory of three-dimensional elastoplastic deformation and introducing a plastic flow factor. Then a stress distribution model of ridge-buckle strips and an online setting model of buckling critical coiling tension are derived from the hypothesis of stress functions, the S. Timoshenko principle of least work, and the theory of Galerkin virtu-al displacement. Simulation results show that the uneven distribution of strip tension and axial compressive stress caused by radial accumulation of local high points is the main cause of strip ridge-buckles. The ridge-buckle quantity increases when the local high point’ s height, coiling diameter and coiling tension increase;the ridge-buckle of a thin strip is more obvious than that of a thick one. The critical coiling tension decreases with the increase of strip thickness, the local high point’ s height and coiling radius.关键词
冷轧/带钢/卷取/板形控制/弹塑性分析/模拟/有限元法Key words
cold rolling/strip steel/coiling/shape control/elastoplastic analysis/modeling/finite element method分类
矿业与冶金引用本文复制引用
管健龙,何安瑞,孙文权,郭睿..冷轧带钢局部高点卷取过程起筋控制的建模与仿真[J].工程科学学报,2015,(8):1084-1091,8.基金项目
中央高校基本科研业务费专项(FRF-IC-14-005) （FRF-IC-14-005）
