中国机械工程 ›› 2026, Vol. 37 ›› Issue (5): 1199-1209.DOI: 10.3969/j.issn.1004-132X.2026.05.020
• 智能制造 • 上一篇
张冀1(
), 袁海博1, 王智璇1, 朱思华1, 白振华1,2(
)
收稿日期:2025-05-31
出版日期:2026-05-25
发布日期:2026-06-09
通讯作者:
白振华
作者简介:张冀,男,1999年生,博士研究生。研究方向为钢铁智能制造工艺。E-mail:1332011776@qq.com基金资助:
ZHANG Ji1(
), YUAN Haibo1, WANG Zhixuan1, ZHU Sihua1, BAI Zhenhua1,2(
)
Received:2025-05-31
Online:2026-05-25
Published:2026-06-09
Contact:
BAI Zhenhua
摘要:
铝带冷轧过程中轧制力的精确预测是优化工艺和保障产品质量的关键,传统的物理模型难以精确捕捉复杂因素间的相互作用,而纯数据驱动模型缺乏物理约束且泛化能力受限。为构建一种兼具物理可解释性和高预测精度的铝带冷轧轧制力预测模型,以5182铝带为研究对象并拟合了屈服强度模型,对大量实际生产数据进行预处理后,采用PSO-Nelder-Mead算法对传统Hill轧制力模型进行了优化,提高了该模型的预测能力。在此基础上,提出了一种物理引导的神经网络(PGNN)模型。该模型以卷积神经网络为基础,在损失函数中融入了基于优化数学模型的物理约束项,使得模型在数据驱动的同时遵循物理规律,并使用贝叶斯优化对模型超参数进行寻优。最后将所建模型使用实际生产数据进行验证。研究结果表明,PGNN模型在验证集上展现出良好的预测性能,预测精度显著高于优化前后的数学模型且泛化能力良好,损失函数的迭代分析也辅证了物理约束的有效性。
中图分类号:
张冀, 袁海博, 王智璇, 朱思华, 白振华. 物理引导的神经网络模型预测铝带冷轧轧制力[J]. 中国机械工程, 2026, 37(5): 1199-1209.
ZHANG Ji, YUAN Haibo, WANG Zhixuan, ZHU Sihua, BAI Zhenhua. Physics-guided Neural Network Model for Predicting Rolling Forces in Aluminum Strip Cold Rolling[J]. China Mechanical Engineering, 2026, 37(5): 1199-1209.
| 辊系参数 | 数值 |
|---|---|
| 工作辊直径 | 450 |
| 中间辊直径 | 600 |
| 支撑辊直径 | 1400 |
| 工作辊辊身长度 | 3000 |
| 中间辊辊身长度 | 3000 |
| 支撑辊辊身长度 | 3000 |
表1 六辊冷轧机辊系参数 (mm)
Tab.1 Parameters of six-high cold rolling mill roll system
| 辊系参数 | 数值 |
|---|---|
| 工作辊直径 | 450 |
| 中间辊直径 | 600 |
| 支撑辊直径 | 1400 |
| 工作辊辊身长度 | 3000 |
| 中间辊辊身长度 | 3000 |
| 支撑辊辊身长度 | 3000 |
| 性能指标 | 训练集 | 验证集 |
|---|---|---|
| R2 | 0.993 | 0.988 |
| RRMSE/kN | 199.8 | 259.5 |
| RMAPE/% | 0.91 | 1.10 |
表2 纯数据驱动模型在训练集和验证集中的性能
Tab.2 Performance of purely data-driven models on training and validation set
| 性能指标 | 训练集 | 验证集 |
|---|---|---|
| R2 | 0.993 | 0.988 |
| RRMSE/kN | 199.8 | 259.5 |
| RMAPE/% | 0.91 | 1.10 |
| 性能指标 | 训练集 | 验证集 |
|---|---|---|
| R2 | 0.895 | 0.886 |
| RRMSE/kN | 753.8 | 770.9 |
| RMAPE/% | 7.42 | 7.70 |
表3 纯物理模型在训练集和验证集中的性能
Tab.3 Performance of pure physical models on training and validation set
| 性能指标 | 训练集 | 验证集 |
|---|---|---|
| R2 | 0.895 | 0.886 |
| RRMSE/kN | 753.8 | 770.9 |
| RMAPE/% | 7.42 | 7.70 |
| 训练集 | 验证集 | |||||
|---|---|---|---|---|---|---|
| R2 | RRMSE/kN | RMAPE/% | R2 | RRMSE/kN | RMAPE/% | |
| 0.1 | 0.962 | 448.7 | 4.58 | 0.969 | 401.9 | 4.10 |
| 0.2 | 0.961 | 456.3 | 4.71 | 0.967 | 414.8 | 4.26 |
| 0.3 | 0.963 | 444.4 | 4.52 | 0.969 | 401.0 | 4.08 |
| 0.4 | 0.958 | 477.1 | 4.84 | 0.965 | 425.5 | 4.27 |
| 0.5 | 0.962 | 455.1 | 4.70 | 0.968 | 409.8 | 4.18 |
| 0.6 | 0.954 | 494.8 | 5.03 | 0.962 | 442.5 | 4.42 |
| 0.7 | 0.959 | 466.0 | 4.86 | 0.966 | 421.5 | 4.37 |
| 0.8 | 0.961 | 454.6 | 4.64 | 0.968 | 404.8 | 4.10 |
| 0.9 | 0.956 | 486.3 | 5.03 | 0.964 | 431.1 | 4.43 |
表4 敏感性分析结果
Tab.4 Sensitivity analysis results
| 训练集 | 验证集 | |||||
|---|---|---|---|---|---|---|
| R2 | RRMSE/kN | RMAPE/% | R2 | RRMSE/kN | RMAPE/% | |
| 0.1 | 0.962 | 448.7 | 4.58 | 0.969 | 401.9 | 4.10 |
| 0.2 | 0.961 | 456.3 | 4.71 | 0.967 | 414.8 | 4.26 |
| 0.3 | 0.963 | 444.4 | 4.52 | 0.969 | 401.0 | 4.08 |
| 0.4 | 0.958 | 477.1 | 4.84 | 0.965 | 425.5 | 4.27 |
| 0.5 | 0.962 | 455.1 | 4.70 | 0.968 | 409.8 | 4.18 |
| 0.6 | 0.954 | 494.8 | 5.03 | 0.962 | 442.5 | 4.42 |
| 0.7 | 0.959 | 466.0 | 4.86 | 0.966 | 421.5 | 4.37 |
| 0.8 | 0.961 | 454.6 | 4.64 | 0.968 | 404.8 | 4.10 |
| 0.9 | 0.956 | 486.3 | 5.03 | 0.964 | 431.1 | 4.43 |
| 超参数 | 数值 |
|---|---|
| 学习率 | 0.009 583 |
| 批量大小 | 27 |
| 卷积核大小 | 5 |
| 卷积核数量 | 49 |
表5 PGNN模型的最优超参数
Tab.5 Optimal hyperparameters of PGNN model
| 超参数 | 数值 |
|---|---|
| 学习率 | 0.009 583 |
| 批量大小 | 27 |
| 卷积核大小 | 5 |
| 卷积核数量 | 49 |
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