التفاصيل البيبلوغرافية
| العنوان: |
An improved method for calculating roll deformation of six-high rolling mill: enhances computation speed and accuracy. |
| المؤلفون: |
Chen, Yafei1 (AUTHOR), Feng, Pingjie1 (AUTHOR), Zhou, Jihan1 (AUTHOR), Peng, Lianggui1 (AUTHOR) 2003plg@163.com, Li, Changsheng1 (AUTHOR) lics@ral.neu.edu.cn |
| المصدر: |
International Journal of Advanced Manufacturing Technology. Feb2024, Vol. 130 Issue 7/8, p3755-3770. 16p. |
| مستخلص: |
The roll deformation model of the six-high rolling mill is one of the core models of the strip shape control theory. The influence function method (IFM) is a numerical method applied to solve the roll deformation problem. This study aims to address the problems of slow calculation speed and insufficient calculation accuracy of IFM in calculating the roll deformation of the six-high rolling mill. Three optimization measures are proposed, namely, optimizing the iterative calculation order of the roll deformation to improve the calculation efficiency; introducing the Adam (Adaptive Moment Estimation) gradient descent optimization algorithm to enhance the stability of the iterative process; and introducing a high-precision rolling force model based on the XGBoost (eXtreme Gradient Boosting) algorithm to improve the calculation accuracy of flatness in the IFM. Parallel experimental results show that by applying the three optimization measures simultaneously, improving the iterative calculation order of the roll deformation can improve the calculation speed by about 7.64 times; introducing the Adam algorithm can reduce the oscillation range of roll contact pressure by an average of 50.4%, increasing the stability of the calculation process; and introducing a high-precision rolling force model based on the XGBoost algorithm can improve the flatness calculation accuracy by about 39.1%. This study provides an effective method to improve the calculation speed and accuracy of the roll deformation in a six-high rolling mill, which has important academic application value. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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