| 改进型逆有限元法在某轿车翼子板快速成形模拟中的应用 |
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| 引用本文： | 闫亚坤,庄蔚敏,那景新.改进型逆有限元法在某轿车翼子板快速成形模拟中的应用[J].塑性工程学报,2006,13(1):1-4. |
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| 作者姓名： | 闫亚坤 庄蔚敏 那景新 |
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| 作者单位： | 1. 吉林大学,机械科学与工程学院,长春,1300223
2. 吉林大学,汽车工程学院,长春,130022 |
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| 基金项目： | 面向21世纪教育振兴行动计划(985计划) |
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| 摘 要： | 为提高一步成形逆有限元法的模拟精度,将四节点等参膜单元应用于一步成形计算,并对空间四边形单元的四个节点可能不在同一平面引起的单元翘曲进行了修正,编写了计算机程序,对某轿车翼子板进行了实际模拟,通过一步模拟结果与增量法模拟结果和实验结果的对比,发现改进后的一步成形模拟结果与增量模拟结果已非常接近,而计算时间不到增量法的1/30,进而验证了本文方法的有效性。
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| 关 键 词： | 一步成形 逆有限元法 等参膜单元 翘曲修正 |
| 文章编号： | 1007-2012（2006）01-0001-04 |
| 收稿时间： | 2005-03-29 |
| 修稿时间： | 2005-05-09 |
Application of a modified finite element inverse approach in fast forming simulation for an automobile fender |
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| YAN Ya-kun,ZHUANG Wei-min,NA Jing-xin.Application of a modified finite element inverse approach in fast forming simulation for an automobile fender[J].Journal of Plasticity Engineering,2006,13(1):1-4. |
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| Authors: | YAN Ya-kun ZHUANG Wei-min NA Jing-xin |
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| Affiliation: | College of Mechanical Science and Engineering, Jilin University, Changchun 130025 China; College of Automobile Engineering, Jilin University, Changchun 130025 China |
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| Abstract: | In order to further enhance simulation precision of one-step forming finite element inverse approach,the four-node isoparametric membrane element was applied to it and the element warpage caused by the condition that the four nodes of special quadrilateral element may not be coplanar was modified.Computer codes were implemented to simulate an automobile fender.The simulation result from the improved method is very close to those of incremental simulation,while the computation consume is much less than that of the increment method,which proves the validity of the method proposed in this paper. |
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| Keywords: | one-step forming finite element inverse approach isoparametric membrane element warpage modification |
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