带钢卷取过程起筋控制的建模与仿真  

Simulation of ridge-buckle control model in coiling process of strip steel

作　　者：管健龙[1] 何安瑞[1] 孙文权[1] 郭睿[2] 

机构地区：[1]北京科技大学冶金工程研究院,北京100083 [2]首都航天机械公司钣金车间,北京100076

出　　处：《钢铁》2015年第11期63-68,共6页Iron and Steel

基　　金：国家科技支撑计划课题资助项目(2012BAF09B04)

摘　　要：为了研究带钢局部高点卷取过程起筋的控制方法,基于应力函数假设和S Timoshenko最小功原理获得了起筋带钢的应力场分布,并采用伽辽金虚位移原理建立了可用于在线计算的起筋临界卷取张力设定模型和起筋弹性极限模型。并对应力场分布和临界卷取张力各影响因素进行仿真研究,仿真结果表明:局部高点在径向累积叠加所引起的带钢张力不均匀分布和轴向压应力是导致带钢起筋的主要原因;临界卷取张力随带钢厚度、局部高点高度和卷取半径增大而减小,带钢宽度对钢卷的起筋临界卷取张力影响非常小。通过与实际生产控制方法和ANSYS有限元分析结果对比,验证了本模型的计算精度和可行性。In order to research the ridge-buckle control method in coiling process of strip steel with local high point, the study obtained the stress field distribution of ridge-buckle based on the hypothesis about stress function and the S. Timosh- enko least work principle, and established the buckling critical coiling tension setting model and buckling elastic limit model that both can be calculated online using the theory of Galerkin virtual displacement. The simulation of stress field distribution and factors on critical coiling tension show that uneven distribution of strip steel tension caused by radial accu- mulation of local high points is the main cause of strip ridge-buckle; critical coiling tension decreases with the increase of the thickness of strip, height of local high points and coiling radius, respectively. The influence of strip width is small. The computational accuracy and feasibility of this model is confirmed by the comparison of actual production control method and ANSYS finite element method results.

关 键 词：局部高点 起筋 临界卷取张力 弹性极限 ANSYS有限元法 

分 类 号：TG335.56[金属学及工艺—金属压力加工]