基于PSO-BP神经网络的玻璃钢管首层失效预测研究

doi:10.19936/j.cnki.2096-8000.20230928.009

复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (9): 61-66.DOI: 10.19936/j.cnki.2096-8000.20230928.009

基于PSO-BP神经网络的玻璃钢管首层失效预测研究

李原昊¹, 胡少伟^1*, 单常喜¹, 牟钊¹, 潘福渠², 李江³

1.重庆大学土木工程学院,重庆400045;
2.山东东信管道科技研究院有限公司,聊城252300;
3.新疆水利水电规划设计管理局,乌鲁木齐830000

收稿日期:2022-08-01 出版日期:2023-09-28 发布日期:2023-10-20
通讯作者: ^*胡少伟(1969—),男,博士,教授,主要从事管道安全评价方面的研究,hushaowei@cqu.edu.cn。
作者简介:李原昊(1998—),男,硕士研究生,主要从事复合管道运行安全评价方面的研究。
基金资助:
重庆市自然科学基金创新群体科学基金项目(cstc2020jcyj-cxttX0003);国家自然科学基金重点项目(52130901,51739008);重庆市技术创新与应用发展专项重点项目(cstc2019jscx-gksbX0013)

Research on first-ply failure prediction of fiberglass reinforced plastic pipes based on PSO-BP neural network

LI Yuanhao¹, HU Shaowei^1*, SHAN Changxi¹, MU Zhao¹, PAN Fuqu², LI Jiang³

1. School of Civil Engineering, Chongqing University, Chongqing 400045, China;
2. Shandong Dongxin Pipeline Technology Research Institute Co., Ltd., Liaocheng 252300, China;
3. Xinjiang Water Resources and Hydropower Planning and Design Administration, Urumqi 830000, China

Received:2022-08-01 Online:2023-09-28 Published:2023-10-20

摘要/Abstract

摘要： 预测玻璃钢管的首层失效对保障其在水利输水工程的服役安全具有重要意义。本文通过粒子群算法优化BP神经网络(PSO-BP)实现对玻璃钢管在双轴应力下管道复合层首层失效的预测,并将PSO-BP模型预测结果通过试验数据进行验证。研究表明:PSO-BP神经网络模型对玻璃钢管首层失效的平均预测准确率可达85%以上,收敛速度及预测准确率较对照BP神经网络模型均存在优势;绘制的轴向应力与环向应力的双轴失效包络线显示出PSO-BP模型预测的失效包络线与试验中测得的失效包络线十分接近,且预测失效包络线绝大部分位于试验失效包络线的内侧,故该模型是一种偏安全的预测模型,可作为一种按规范鉴定玻璃钢管合格前的有效判断手段。

关键词: 玻璃钢管, PSO-BP神经网络, 玻璃纤维, 复合管道, 管道失效

Abstract: Predicting the first-ply failure of fiberglass reinforced plastic (FRP) pipe is essential to ensure service safety in water conveyance projects. In this research, a particle swarm algorithm optimized backpropagation neural network (PSO-BP) is used to predict the first-ply failure of FRP pipe under biaxial stress. Experimental data verify the prediction results of the PSO-BP model as well. The results illustrated that the average prediction accuracy of the PSO-BP neural network model for the first-ply failure of the FRP pipe could reach more than 85%, which has advantages over the control backpropagation neural network model regarding convergence and accuracy. The plotted biaxial failure envelopes of axial and hoop stresses showed that the failure envelopes predicted by the PSO-BP model are very close to the failure envelopes measured in the test. The predicted failure envelopes are primarily located in the test failure envelopes. Most of the predicted failure envelope is located inside the test failure one. Therefore, the model is a rational safety prediction model, which can be used as an effective approach to identify FRP pipes before they are qualified according to the specification.

Key words: fiberglass reinforced plastic pipe, particle swarm optimization backpropagation neural network, glass fiber, composite pipes, pipe failure

中图分类号:

TB332

李原昊, 胡少伟, 单常喜, 牟钊, 潘福渠, 李江. 基于PSO-BP神经网络的玻璃钢管首层失效预测研究[J]. 复合材料科学与工程, 2023, 0(9): 61-66.

LI Yuanhao, HU Shaowei, SHAN Changxi, MU Zhao, PAN Fuqu, LI Jiang. Research on first-ply failure prediction of fiberglass reinforced plastic pipes based on PSO-BP neural network[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(9): 61-66.

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基于PSO-BP神经网络的玻璃钢管首层失效预测研究

Research on first-ply failure prediction of fiberglass reinforced plastic pipes based on PSO-BP neural network

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