| 基于离散单元方法的冷轧轧制力计算 |
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| 引用本文： | 梁勋国,王业科,李轲,谢二虎,赵吉成.基于离散单元方法的冷轧轧制力计算[J].塑性工程学报,2011,18(5). |
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| 作者姓名： | 梁勋国 王业科 李轲 谢二虎 赵吉成 |
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| 作者单位： | 1. 中冶赛迪工程技术股份有限公司冷轧事业部,重庆400013;重庆市钢铁冶金工程技术研究中心,重庆401122
2. 中冶赛迪工程技术股份有限公司冷轧事业部,重庆,400013 |
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| 摘 要： | 考虑了轧制变形区内带钢变形抗力的变化,根据卡尔曼方程,推导了塑性变形区内轧制力的计算公式,为避免直接积分的复杂性,将塑性变形区进行单元划分,分别求解前滑区和后滑区各单元的平均轧制力,将所有单元轧制力之和+入口弹性压缩区的轧制力+出口弹性恢复区的轧制力,得到了总的轧制力。计算结果表明,单道次计算时间t<30ms,在2000组计算结果中,计算值与实测值之间有93.3%的相对误差保持在±10%范围内,预测精度较高,满足冷轧在线控制的要求。
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| 关 键 词： | 冷轧 离散单元 轧制力 |
The calculation on rolling force of cold strip rolling using discrete element method |
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| LIANG Xun-guo,WANG Ye-ke,LI Ke,XIE Er-hu,ZHAO Ji-cheng.The calculation on rolling force of cold strip rolling using discrete element method[J].Journal of Plasticity Engineering,2011,18(5). |
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| Authors: | LIANG Xun-guo WANG Ye-ke LI Ke XIE Er-hu ZHAO Ji-cheng |
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| Affiliation: | LIANG Xun-guo1,2 WANG Ye-ke1 LI Ke1 XIE Er-hu1,2 ZHAO Ji-cheng1,2(1.Department of cold mill of CISDI engineering Co.,Ltd.,Chongqing 400013 China)(2.Chongqing Iron & Steelmaking Engineering Research Center,Chongqing 401122 China) |
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| Abstract: | A force model for plastic deforming zone was derived from Karman's equation considering the variation of yield stress in the deforming zone.To avoid complex integral solution,the plastic deforming zone was divided into a number of elements and the average rolling force of each element in forward slip zone and backward slip zone was calculated respectively.Then,the rolling force of the roll gap was obtained by adding the plastic and elastic force of all the elements,including the force at the entry elastic c... |
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| Keywords: | cold rolling discrete element rolling force |
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