Article(id=1324392914100552383, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1324392762614882315, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2026.07.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1767283200000, receivedDateStr=2026-01-02, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793689476752, onlineDateStr=2026-11-03, pubDate=1784044800000, pubDateStr=2026-07-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793689476752, onlineIssueDateStr=2026-11-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793689476752, creator=13701087609, updateTime=1793689476752, updator=13701087609, issue=Issue{id=1324392762614882315, tenantId=1146029695717560320, journalId=1240685776644648972, year='2026', volume='30', issue='7', pageStart='1041', pageEnd='1220', issueExtLink='null', onlineDate='null', pubDate='1784044800000', pubDateStr='2026-07-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793689440634, creator='13701087609', updateTime=1793689440634, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=1185, endPage=1194, ext={EN=ArticleExt(id=1324392914394153664, articleId=1324392914100552383, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=A data-driven spatiotemporal dynamic prediction method for line heating deformation, columnId=1242129251223274417, journalTitle=Journal of Ship Mechanics, columnName=Structural Mechanics, runingTitle=null, highlight=null, articleAbstract=
Line heating is a critical process for forming ship hull outer plates, involving complex thermo-mechanical coupling effects. The deformation process is intricate, making real-time, dynamic, and accurate prediction of its spatiotemporal evolution challenging. To address this issue, this paper proposes a CNN-Double-Layer LSTM-AM model that integrates spatiotemporal features. The model uses a single heating line as a time step to dynamically predict transverse shrinkage and angular deformation. The model incorporates key influencing factors of line heating deformation: it employs a Convolutional Neural Network (CNN) to extract spatial features from deformation data, utilizes Double-Layer Long Short-Term Memory (LSTM) networks to model both temporal dependencies among multiple heating lines within a single plate and deformation correlations between multiple plates, and introduces an Attention Mechanism (AM) to enhance feature weights of critical time steps. Results demonstrate that the model achieves a Mean Absolute Error (MAE) of 0.0383 for angular deformation prediction and an R2 coefficient of 0.96 for transverse shrinkage prediction, which effectively solves the spatiotemporal dynamic evolution prediction challenge in line heating deformation processes and provides technical support for realizing closed-loop intelligent control of "processing-prediction-feedback".
, authors=Can ZHANG
1, 2, Jin-rui YE
1, 2, Kai LIU
1, 2, Xing-hua WANG
3, Zhi-jun ZHANG
1, 2, authorsList=Can ZHANG, Jin-rui YE, Kai LIU, Xing-hua WANG, Zhi-jun ZHANG, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2026 Journal of Ship Mechanics. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1324392922346554105, articleId=1324392914100552383, tenantId=1146029695717560320, journalId=1240685776644648972, language=CN, title=数据驱动的水火弯板变形时空动态预测方法, columnId=1241023038926410098, journalTitle=船舶力学, columnName=结构力学, runingTitle=null, highlight=null, articleAbstract=
水火弯板是在船舶制造中船体外板成形的关键工艺,涉及复杂的热−力耦合效应,变形过程复杂,其时空演化规律难以实时、动态且精确地预测。为此,本文提出一种融合时空特征的 CNN-双层 LSTM-AM模型,以单道加热线为时间步,动态预测横向收缩量和角变形量。模型综合了影响水火弯板变形的关键因素,利用卷积神经网络(CNN)提取变形数据的空间特征,通过双层长短期记忆网络(LSTM)分别构建单块板内多道加热线的时序依赖关系及多块板间的变形关联,引入注意力机制(AM)强化关键时间步的特征权重。结果表明,模型对水火弯板角变形量预测的平均绝对误差为0.0383,横向收缩量预测R2 达 0.96,解决了水火弯板变形过程时空动态演化的预测难题,为实现“加工−预测−反馈”的闭环智能控制提供技术支撑。
, authors=张灿
1, 2, 叶金蕊
1, 2, 刘凯
1, 2, 王兴华
3, 张志俊
1, 2, authorsList=张灿, 叶金蕊, 刘凯, 王兴华, 张志俊, authorCompany=null, correspAuthors=null, authorNote=
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1Beijing Institute of Technology, Beijing 100081, China
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1北京理工大学 空天科学与技术学院,北京 100081
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张 灿(2000–),男,硕士
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1Beijing Institute of Technology, Beijing 100081, China
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1北京理工大学 空天科学与技术学院,北京 100081
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叶金蕊(1982–),女,博士,研究员,通讯作者,E-mail:yejinrui@bit.edu.cn
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1Beijing Institute of Technology, Beijing 100081, China
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1北京理工大学 空天科学与技术学院,北京 100081
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3716th Research Institute, China State Shipbuilding Corporation Limited, Lianyungang 222000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1324392923743257369, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, authorId=1324392923621622550, language=CN, stringName=王兴华, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3中国船舶集团有限公司 第七一六研究所,江苏 连云港 222000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1324392922858259200, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, xref=3, ext=[AuthorCompanyExt(id=1324392922866647809, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, companyId=1324392922858259200, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1Beijing Institute of Technology, Beijing 100081, China
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1北京理工大学 空天科学与技术学院,北京 100081
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Framework of data-driven spatiotemporal dynamic prediction for line heating deformation, figureFileSmall=hRCJjCAjbq9GGzpq8Kylvw==, figureFileBig=t59zwhyI9YYBkH9ydHO87g==, tableContent=null), ArticleFig(id=1324392928507986731, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图1, caption=
数据驱动的水火弯板变形量时空动态预测框架, figureFileSmall=hRCJjCAjbq9GGzpq8Kylvw==, figureFileBig=t59zwhyI9YYBkH9ydHO87g==, tableContent=null), ArticleFig(id=1324392928696730412, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Fig.2, caption=
Definition of line heating deformation, figureFileSmall=nOO63eCA3lLEA4j32mP4Og==, figureFileBig=X0/+qMmnCggmj0RkTQwxNw==, tableContent=null), ArticleFig(id=1324392928755450669, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图2, caption=
水火弯板变形量定义, figureFileSmall=nOO63eCA3lLEA4j32mP4Og==, figureFileBig=X0/+qMmnCggmj0RkTQwxNw==, tableContent=null), ArticleFig(id=1324392928814170926, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Fig.3, caption=
Relationship between composite variables and deformation and integration of influencing factors, figureFileSmall=ggUi1Rb6ZRjnkyTAu04k2Q==, figureFileBig=ZUrhBBTUsd9CQYzGxpQ8EA==, tableContent=null), ArticleFig(id=1324392928910639919, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图3, caption=
复合变量与变形量的关系图及影响因素的整合, figureFileSmall=ggUi1Rb6ZRjnkyTAu04k2Q==, figureFileBig=ZUrhBBTUsd9CQYzGxpQ8EA==, tableContent=null), ArticleFig(id=1324392930139570992, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Fig.4, caption=
Prediction flowchart of the CNN-dual-layer LSTM-AM model, figureFileSmall=DxNH6KvGcoFdhoOn9yyl/A==, figureFileBig=rdAeBEtfB3w5U5hlOE3v8A==, tableContent=null), ArticleFig(id=1324392930248622897, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图4, caption=
CNN-双层LSTM-AM 模型预测流程图, figureFileSmall=DxNH6KvGcoFdhoOn9yyl/A==, figureFileBig=rdAeBEtfB3w5U5hlOE3v8A==, tableContent=null), ArticleFig(id=1324392930319926066, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Fig.5, caption=
Geometric parameters and experimental specimen of line heating, figureFileSmall=Dr/vDqy3BOO0izJ45JZk3A==, figureFileBig=Y+qbqk2s3oYSj2vDk0xnvQ==, tableContent=null), ArticleFig(id=1324392930399617843, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图5, caption=
水火弯板几何参数和实验样件, figureFileSmall=Dr/vDqy3BOO0izJ45JZk3A==, figureFileBig=Y+qbqk2s3oYSj2vDk0xnvQ==, tableContent=null), ArticleFig(id=1324392930487698228, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Fig.6, caption=
Comparison between simulated and experimental values of line heating deformation, figureFileSmall=l5mz/k12MXf2YtZQaTeIVQ==, figureFileBig=7T25PLRMGtI/N6erxfrunQ==, tableContent=null), ArticleFig(id=1324392930567390005, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图6, caption=
水火弯板变形量的仿真值与实验值对比, figureFileSmall=l5mz/k12MXf2YtZQaTeIVQ==, figureFileBig=7T25PLRMGtI/N6erxfrunQ==, tableContent=null), ArticleFig(id=1324392930655470390, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Fig.7, caption=
Simulated results of line heating deformation in the x and z directions, figureFileSmall=gv0WrjvFb2WFFF5/tK5xlw==, figureFileBig=FoHHY7oH7FFRwKlza76GGg==, tableContent=null), ArticleFig(id=1324392930743550775, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图7, caption=
水火弯板x轴方向和z轴方向仿真变形结果, figureFileSmall=gv0WrjvFb2WFFF5/tK5xlw==, figureFileBig=FoHHY7oH7FFRwKlza76GGg==, tableContent=null), ArticleFig(id=1324392930806465336, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Fig.8, caption=
Simulated deformation process of line heating with 14 heating lines for Plan 1, figureFileSmall=jeuEeAioR6fi1U9/T6vq7w==, figureFileBig=oTDmuADA6aIABsRorQbONg==, tableContent=null), ArticleFig(id=1324392930881962809, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图8, caption=
方案1水火弯板14道加热线仿真变形过程, figureFileSmall=jeuEeAioR6fi1U9/T6vq7w==, figureFileBig=oTDmuADA6aIABsRorQbONg==, tableContent=null), ArticleFig(id=1324392930957460282, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Fig.9, caption=
Comparison between predicted and simulated values of four models, figureFileSmall=RKE8eRZqzm40pKq4aFTEJQ==, figureFileBig=0EtvG/Y94T8U6b2+46+7WA==, tableContent=null), ArticleFig(id=1324392931024569148, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图9, caption=
四种模型预测值与仿真值对比, figureFileSmall=RKE8eRZqzm40pKq4aFTEJQ==, figureFileBig=0EtvG/Y94T8U6b2+46+7WA==, tableContent=null), ArticleFig(id=1324392931095872317, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Fig.10, caption=
Comparison between predicted and simulated values using the CNN-dual-layer LSTM-AM model, figureFileSmall=h4S3O50Gp6j4JHbGwf59cQ==, figureFileBig=bdjwYqThkL2hvWkCpQ8EUA==, tableContent=null), ArticleFig(id=1324392931154592574, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图10, caption=
CNN-双层LSTM-AM模型预测值与仿真值对比, figureFileSmall=h4S3O50Gp6j4JHbGwf59cQ==, figureFileBig=bdjwYqThkL2hvWkCpQ8EUA==, tableContent=null), ArticleFig(id=1324392931209118527, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Fig.11, caption=
Radar chart of prediction accuracy evaluation of four models, figureFileSmall=P8luOvl2lW1L2H89tGULAQ==, figureFileBig=+MVEbQXhm0ZMELWzJ7ggDg==, tableContent=null), ArticleFig(id=1324392931280421696, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=图11, caption=
四种模型精度评价雷达图, figureFileSmall=P8luOvl2lW1L2H89tGULAQ==, figureFileBig=+MVEbQXhm0ZMELWzJ7ggDg==, tableContent=null), ArticleFig(id=1324392931347530561, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=EN, label=Tab.1, caption=
Heating line sequence for line heating
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 加热线顺序 |
| 方案1 | L1→L8→L2→L9→L3→L10→L4→L11→L5→L12→L6→L13→L7→L14 |
| 方案2 | L1→L2→L3→L4→L5→L6→L7→L8→L9→L10→L11→L12→L13→L14 |
| 方案3 | L1→L2→L3→L4→L5→L6→L7→L14→L13→L12→L11→L10→L9→L8 |
), ArticleFig(id=1324392931423028034, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392914100552383, language=CN, label=表1, caption=
水火弯板加热线顺序方案
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 加热线顺序 |
| 方案1 | L1→L8→L2→L9→L3→L10→L4→L11→L5→L12→L6→L13→L7→L14 |
| 方案2 | L1→L2→L3→L4→L5→L6→L7→L8→L9→L10→L11→L12→L13→L14 |
| 方案3 | L1→L2→L3→L4→L5→L6→L7→L14→L13→L12→L11→L10→L9→L8 |
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