为了满足板材轧制过程在线控制快速计算的要求,首先建立了板材轧制平面应变刚塑性有限元能量泛函.其次,通过合理的简化建立了只考虑变形区的快速有限元模型,且对有限元建模的关键问题包括中性点、第一类速度奇异点和刚性区等进行了处理.最后,开发了板材轧制快速计算有限元程序,并且利用现场轧制数据测试了快速有限元程序的计算速度和精度,结果表明计算速度和精度满足在线快速计算的要求.
参考文献
| [1] | Son J S;Lee D M;Kim I S .A Study on Online Learning Neural Network for Prediction for Rolling Force in Hot Rolling Mill[J].Journal of Materials Processing Technology,2005,164:1612. |
| [2] | 刘相华.刚塑性有限元及其在轧制中的应用[M].北京:冶金工业出版社,1994 |
| [3] | Jiang Z Y;Tieu A K .A Method to Analyses the Rolling of Strip With Ribs by 3D Rigid Visco-Plastic Finite Element Method[J].Journal of Materials Processing Technology,2001,117:146. |
| [4] | Huang J;Xu W;Thomson P .A General Rigid-Plastic/Rigid Viscoplastic FEM for Metal-Forming Processes Based on the Potential Reduction Interior Point Method[J].International Journal of Machine Tools and Manufaeture,2003,43:379. |
| [5] | Xu W L;Di S L;Thomson P .Rigid-Plastic/Rigid-Viscoplastic FE Simulation Using Linear Programming for Metal Forming[J].International Journal for Numerical Methods in Engineering,2003,56:487. |
| [6] | Mori K;Otomo Y;Yoshimura H .Parallel Processing of 3D Rigid-Plastic Finite Element Method Using Diagonal Matrix[J].Journal of Materials Processing Technology,2006,177:63. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%