| 有限元法在板料二次成形中的应用 |
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| 引用本文： | 诸旭妹,张怀存. 有限元法在板料二次成形中的应用[J]. 微计算机信息, 2007, 23(22): 206-208 |
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| 作者姓名： | 诸旭妹 张怀存 |
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| 作者单位： | 北京机械工业学院,机械工程系,北京,100085 |
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| 基金项目： | 北京市教育委员会资助项目(彩虹工程) |
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| 摘 要： | 本文建立了板料成形动力显式有限元模拟，采用四节点退化壳单元对板料进行离散化，利用中心差分法离散时间域，建立显式计算格式，采用罚函数法和修正库仑定理计算接触力和摩擦力。对二次成形过程，建立了有限元分析计算模型。通过Dynaform对板料成形进行仿真得出最后结论。
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| 关 键 词： | 有限元 数值模拟 板料成形 |
| 文章编号： | 1008-0570（2007）08-1-0206-03 |
| 修稿时间： | 2007-05-13 |
The Application of Finite Element Analysis in Twice Metal Formings |
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| ZHU XUMEI,ZHANG HUAICUN. The Application of Finite Element Analysis in Twice Metal Formings[J]. Control & Automation, 2007, 23(22): 206-208 |
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| Authors: | ZHU XUMEI ZHANG HUAICUN |
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| Affiliation: | Dept of Mech Engin, Beljing Institute of Machinery ,Beijing 100085 |
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| Abstract: | This paper elaborates a finite element model for dynamic analysis of sheet metal forming process. Four-node degenerated shell elements are adopted to discretize sheet metal. The central difference is set up. Penalty method is employed to calculate normal contact force, revised Coulumbic friction law is employed for modeling friction.Finite element computing model is set up for the processes of two metal formings. It Uses Dynaform to simulate the process of metal forming and get the conclusion. |
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| Keywords: | finite element numerical simulation metal forming |
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