锻压技术

基于GRA的PSO-BP神经网络斜轧穿孔管形预测

英文标题：Prediction of pipe shape in cross-rolled piercing by PSO-BP neural network based on GRA

作者：王清华加世滢胡建华双远华赵铁琳

分类号：TP183

出版年,卷(期):页码：2022,47(8):88-94

摘要：

针对斜轧穿孔中无缝钢管管形计算复杂且精度不高的缺陷，提出了基于灰色关联度分析（GRA）的PSO-BP神经网络管形预测模型。由于轧制过程中影响管形的因素较多，通过灰色关联度分析对工艺参数进行了相关性分析,选择相关度较高的影响因素作为输入；并使用粒子群优化算法对BP神经网络进行优化，确定了最佳的神经网络结构，构建了无缝钢管的斜轧穿孔管形预测模型。最后，应用现场数据对该模型进行了训练和测试，并将其与BP神经网络和传统数学模型进行了对比分析。研究结果表明：该预测模型的精度较高、可靠性较好，为提高无缝钢管的生产质量奠定了基础。

For the defects of complicated calculation and low precision for pipe shape of seamless steel pipe in cross-rolled piercing, a pipe shape prediction model of PSO-BP neural network based on grey relational analysis was proposed. Since there were many factors affecting the pipe shape during the rolling process, the correlation analysis of the process parameters was carried out by the gray correlation analysis, and the influencing factors with higher correlation were selected as the input. Then, the BP neural network was optimized by particle swarm optimization algorithm, the optimal neural network structure was determined, and the pipe shape prediction model of cross-rolled piercing for seamless steel pipe was constructed. Finally, the model was trained and tested by field data and was compared with BP neural network and traditional mathe-matical models. The research results show that the prediction model has higher accuracy and better reliability, which lays a foundation for improving the production quality of seamless steel pipes.

基金项目：

山西省科技重大专项(20191102009)

作者简介：王清华（1980-），女，博士，讲师，E-mail：2002043@tyust.edu.cn；通信作者：加世滢（1996-），女，硕士研究生，E-mail：13103421357@163.com

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