The ribbing problem has serious influence on the steel product quality, which produces additional shape waves on the surface of uncoiled steel strip on the process of curl. Nonlinear spline finite element method （n-spline FEM） is adopted to establish the relationship between the ribbing height and deflection of additional shape wave, for example, post buckling deformation. The proposed spline FEM is more effective and convenient than traditional finite element method in the buckling analysis. Using the spline FEM, the shape wave caused by the ribbing is calculated, and then the ribbing values can be obtained which are difficult to measure in practice. At the same time, the judgment rule is also given for estimating the strip quality according to the ribbing value.
参考文献
| [1] | 白振华,李兴东,连家创,刘献东.局部浪形对冷轧钢卷起筋的影响[J].机械工程学报,2006(09):229-232. |
| [2] | BAI Zhen hua .Research About the Measure of Ribbing Quanti- ty and Influence[J].Iron & Steel,2004,39(12):47. |
| [3] | 周莲莲,白振华.冷轧钢卷"鼓包"高度的测量方法[J].上海金属,2005(04):58-60. |
| [4] | 张清东,刘赟赟,周晓敏,邹玉贤,黄夏兰,彭俊.高温带钢的局部宽度内压屈曲及后屈曲分析[J].机械工程学报,2005(03):102-106. |
| [5] | SHIH Chung tze .The Spline Finite Element Method[J].Mathematic Numerica Sinica,1979,1:50. |
| [6] | SHEN Peng-cheng.The Spline Finite Element Method in Structural Analysis[M].Beijing:Water Conservancy and Hydropower Publishing House,1992 |
| [7] | QIN Jian;ZHANG Qing-dong;DAI Jie-tao .Nonlinear Spline Method for Buckling Analysis of Steel Strip[J].Current Advances in Materials and Processes,2011,145(01):14. |
| [8] | 秦剑,黄克服,张清东.几何非线性样条有限元法[J].工程力学,2011(z1):1-4. |
| [9] | WU Ji-ke;SU Xian yue.The Stability of Elastic System[M].北京:科学出版社,1994 |
| [10] | Souza Neto E A;Feng Y T .On the Determination of the Path Direction for Arc-Length Methods in the Presence of Bifurca tions and "Snap-backs"[J].Computer Methods in Applied Mechanics and Engineering,1999,179:81. |
| [11] | WANG Yi-dong .Influence of Local High Spot on Additional Waviness of Cold-Rolled Uncoiling Strip[J].Iron & Steel,2010,45(08):47. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%