| 多道次辊弯成形数值模拟技术 |
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| 引用本文： | 曾国,来新民,于忠奇,郭永进.多道次辊弯成形数值模拟技术[J].上海交通大学学报,2007,41(10):1598-1602. |
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| 作者姓名： | 曾国 来新民 于忠奇 郭永进 |
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| 作者单位： | 上海交通大学,机械与动力工程学院,上海,200240 |
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| 摘 要： | 利用ABAQUS软件对多道次辊弯成形数值模拟技术进行了研究.基于动力显式算法,采用引导板带动板料进入轧辊的模拟方式,建立开口类型钢多道次辊弯成形的有限元模型.重点分析了多道次模拟中,模型建立、单元选择、边界条件、虚拟成形速度、加载曲线、摩擦模型和回弹等关键问题,提出了适合于多道次辊弯成形分析的数值模拟方法.通过模拟外卷边槽钢的12道次辊弯成形过程,验证了方法的有效性.
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| 关 键 词： | 辊弯成形 多道次 有限元 动力显式 回弹 |
| 文章编号： | 1006-2467（2007）10-1598-05 |
| 修稿时间： | 2006-11-03 |
The Simulation of Roll Forming with Multiple Passes |
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| ZENG Guo,LAI Xin-min,YU Zhong-qi,GUO Yong-jin.The Simulation of Roll Forming with Multiple Passes[J].Journal of Shanghai Jiaotong University,2007,41(10):1598-1602. |
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| Authors: | ZENG Guo LAI Xin-min YU Zhong-qi GUO Yong-jin |
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| Institution: | School of Mechanical Eng. , Shanghai Jiaotong Univ. , Shanghai 200240, China |
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| Abstract: | The deformation of roll forming is very complicated and shows obvious material nonlinearity,geometric nonlinearity and boundary nonlinearity.The simulation of roll forming with multiple passes was studied by FEM software ABAQUS. Based on dynamic explicit algorithm and using approach that the metal sheet is pulled by leading sheet,an FE model of roll forming with multiple passes is set up.The key problems in the model,model construction,choosing element,boundary condition,virtual speed of metal sheet,loading amplitude and springback are discussed,and a simulation method for roll forming with multiple passes is proposed.The method is validated with roll forming process with 12 passes of channel section with outer edge. |
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| Keywords: | roll forming multiple passes finite element method dynamic explicit falgorithm springback |
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