| 非对称型材压弯过程截面畸变的数值模拟 |
| |
| 引用本文： | 宋江腾,臧勇,崔福龙,崔丽红.非对称型材压弯过程截面畸变的数值模拟[J].机械设计与制造,2009(3). |
| |
| 作者姓名： | 宋江腾 臧勇 崔福龙 崔丽红 |
| |
| 作者单位： | 北京科技大学,机械工程学院,北京,100083 |
| |
| 摘 要： | 以槽型材为例,应用ANSYS/LS-DYNA软件的显式动力学有限元方法,对非对称型材收边压弯过程中截面畸变问题进行了数值模拟.主要分析了翼缘部分横向偏移随不同纵向和径向位置的分布规律.结果表明:不同节点的横向偏移与该节点至中性层的距离近似呈正比,翼缘末端的偏移量最大;径向位置不同,半波长度基本一致.
|
| 关 键 词： | 翼缘 畸变 横向偏移 |
Numerical simulation of section distortion in bending process of asymmetrical profile |
| |
| SONG Jiang-teng,ZANG Yong,CUI Fu-long,CUI Li-hong.Numerical simulation of section distortion in bending process of asymmetrical profile[J].Machinery Design & Manufacture,2009(3). |
| |
| Authors: | SONG Jiang-teng ZANG Yong CUI Fu-long CUI Li-hong |
| |
| Affiliation: | School of Mechanical Engineering;University of Science and Technology Beijing;Beijing100083;China |
| |
| Abstract: | Based on the example of the U-section profile,the section distortion in the retract-bending process was simulated by the aid of the explicit dynamic FEM software ANSYS/LS-DYNA. The change law of the lateral offset of the flange in different longitudinal and radial positions was mainly analyzed. The results indicate that the lateral offset of different nodes is approximately linear to the distance from the node to neutral plane. The lateral offset of the end of flange is biggest. The half-wave length is almo... |
| |
| Keywords: | ANSYS/LS-DYNA |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
