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板带轧制边界元模拟系统的开发和利用
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英文标题：Developing and utilizing the simulation system of cold strip rolling with BEM |
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作者：石萍 |
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单位：北京建筑工程学院基础部 北京100044 |
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关键词：边界元法 轧制 张力 弹塑性 |
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分类号：TG335 |
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出版年,卷(期):页码：2005,30(3):30-31 |
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摘要：
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为了促进轧机和轧制技术的进一步发展,进一步研究张力对板形的作用机理,需要结合轧件三维变形分析来进行。建立了三维弹塑性问题的边界元方法,并用此方法模拟了冷轧板带三维轧制过程,讨论了改变前、后张力时,轧件的三维变形特点。结果显示:增加张力可以限制金属横向流动,加大厚向变形,使端面厚度更加均匀。由此证明给出的模拟系统在轧制问题的分析中是有效的。
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To develop the technology of roll mills and rolling technology and further study the mechanism of tension on the strip shape, three-dimensional deformation of the rolling piece should be analyzed. In this paper, the boundary element method is established dealing with three-dimensional elasto-plastic problem and a simulation system of cold strip rolling has been developed. Variation of three-dimensional deformation of strip under different forth and back tension can be obtained. The results show that enhanced tension restricts lateral flow, enhances deformation in thickness direction, and makes outgo thickness more uniform. It demonstrates the validity and effectiveness of our developed boundary element simulation on rolling problems.
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基金项目：
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作者简介：
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参考文献：
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[1]张文元.冷轧带钢横向应力分布的研究:[硕士学位论文]鞍山:鞍山钢铁学院,1989,3.
[2]张树堂.轧制超薄带时平整度的研究[J].钢铁,1981,16(10):15.
[3]户康寿.平坦度不良を主对象とした板压延の解析[J]塑性と加工,1986,27(10):10661070.
[4]肖宏.三维弹塑性接触问题的边界元法及其在板带轧制过程分析中的应用[J]:燕山大学学报,2000,24(4):363368.
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