Article(id=1325149885359599853, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1325146207672214104, articleNumber=null, orderNo=null, doi=10.11858/gywlxb.20251287, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1766937600000, receivedDateStr=2025-12-29, revisedDate=1770912000000, revisedDateStr=2026-02-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1793869952763, onlineDateStr=2026-11-05, pubDate=1783180800000, pubDateStr=2026-07-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793869952763, onlineIssueDateStr=2026-11-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793869952763, creator=13701087609, updateTime=1793869952763, updator=13701087609, issue=Issue{id=1325146207672214104, tenantId=1146029695717560320, journalId=1255847867265597444, year='2026', volume='40', issue='7', pageStart='070101-1', pageEnd='070114-14', issueExtLink='null', onlineDate='null', pubDate='1783180800000', pubDateStr='2026-07-05', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1793869075935, creator='13701087609', updateTime=1793870526447, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1325152292009279913, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1325146207672214104, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1325152292009279914, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1325146207672214104, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=070111-1, endPage=070111-17, ext={EN=ArticleExt(id=1325149890334044400, articleId=1325149885359599853, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Impact Response and Design Optimization of Triangular Corrugated Sandwich Beams: A Machine Learning Approach, columnId=1325146208670458457, journalTitle=Chinese Journal of High Pressure Physics, columnName=Mechanical Behavior of Lightweight Composite Protective Materials and Structures, runingTitle=null, highlight=null, articleAbstract=
To enhance the prediction accuracy of low-velocity impact performance and improve the structural design efficiency of triangular corrugated sandwich beams, this paper proposes a machine learning modeling and optimization process for the impact response of sandwich beams based on a hard-parameter-sharing multi-task learning (MTL) framework. A sample dataset is generated using finite element models, and the rationality of the models is validated against existing experimental results. Subsequently, an MTL model is trained to simultaneously predict the structural specific energy absorption (SEA), the maximum deflection of the top panel, and the initial peak load. The results show that the MTL model optimized via Bayesian optimization demonstrates strong predictive performance under a 50 J impact energy condition. The predictions align well with the finite element simulation results, with the coefficient of determination R2 for all output variables in the test set exceeding 0.989, thereby validating the effectiveness and reliability of the model in response prediction and engineering optimization analysis. Parameter sensitivity analysis reveals that the core cell count and core wall thickness have the most significant influence on structural stiffness, followed by the top panel thickness, while the bottom panel thickness has a relatively minor impact. Moreover, the core wall thickness exhibits a certain saturation threshold in terms of performance enhancement. In combination with the non-dominated sorting genetic algorithm Ⅱ (NSGA-Ⅱ), multi-objective optimization analysis are conducted focusing on deformation characteristics, energy absorption performance, and comprehensive performance, and yields optimal parameter configurations that meet different engineering design requirements for sandwich beams.
, authors=Dong LI, Xiaobin ZHANG, Zhifang LIU, Jianyin LEI, authorsList=Dong LI, Xiaobin ZHANG, Zhifang LIU, Jianyin LEI, authorCompany=null, correspAuthors=Zhifang LIU, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2026 Chinese Journal of High Pressure Physics. 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=1325149967538598188, articleId=1325149885359599853, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=基于机器学习的三角形波纹夹芯梁的冲击响应与设计优化, columnId=1325146208871785051, journalTitle=高压物理学报, columnName=轻质复合防护材料与结构的力学行为, runingTitle=null, highlight=null, articleAbstract=
为提高三角形波纹夹芯梁在低速冲击下的性能预测精度与结构设计效率,基于硬参数共享的多任务学习(multi task learning, MTL)框架,构建了一种面向夹芯梁冲击响应的机器学习建模与优化流程。基于有限元模型生成样本数据集,并参考已有实验结果对模型合理性进行校核。在此基础上训练MTL模型,实现了对结构比吸能、上面板最大挠度及初始峰值载荷的同步预测。结果表明,经贝叶斯优化后的MTL模型在50 J冲击能量下表现出较好的预测性能,预测结果与有限元模拟结果吻合较好,测试集中各输出量的决定系数均达到0.989以上,验证了该模型在响应预测与工程优化分析中的有效性和可靠性。参数敏感性分析表明:芯层胞元数量和芯层壁厚对结构刚度的影响最显著,其次为上面板厚度,而下面板厚度的影响相对较小;芯层壁厚在性能提升方面存在一定的饱和阈值。结合非支配排序遗传算法Ⅱ(NSGA-Ⅱ),分别对变形特性、吸能性能及综合性能开展多目标优化分析,获得了满足不同工程设计需求的夹芯梁最优参数构型。
, authors=李栋, 张晓斌, 刘志芳, 雷建银, authorsList=李栋, 张晓斌, 刘志芳, 雷建银, authorCompany=null, correspAuthors=刘志芳, authorNote=
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李 栋(2000-),男,硕士研究生,主要从事冲击动力学研究. E-mail:1255379997@qq.com
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Chinese Journal of Theoretical and Applied Mechanics, 2024, 56(6): 1713–1726., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1325149971779039533, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, xref=null, ext=[AuthorCompanyExt(id=1325149972114583854, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, companyId=1325149971779039533, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Aerospace Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China), AuthorCompanyExt(id=1325149972143943983, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, companyId=1325149971779039533, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=太原理工大学航空航天学院, 山西 太原 030024)])], figs=[ArticleFig(id=1325149999859904858, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 1, caption=
Research framework, figureFileSmall=t2Op0RihURXNj6Rono5J2Q==, figureFileBig=Dg52IZO35WtDd6WyEvbrzQ==, tableContent=null), ArticleFig(id=1325150000669405531, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图1, caption=
研究框架, figureFileSmall=t2Op0RihURXNj6Rono5J2Q==, figureFileBig=Dg52IZO35WtDd6WyEvbrzQ==, tableContent=null), ArticleFig(id=1325150003999682910, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 2, caption=
Schematic diagram of the corrugated sandwich beam structure, figureFileSmall=RlRkC158/geNc/uUG/2LBw==, figureFileBig=mqm9i7f9RX7RXIQUtZanxw==, tableContent=null), ArticleFig(id=1325150004846932319, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图2, caption=
波纹夹芯梁的结构示意图, figureFileSmall=RlRkC158/geNc/uUG/2LBw==, figureFileBig=mqm9i7f9RX7RXIQUtZanxw==, tableContent=null), ArticleFig(id=1325150005270557025, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 3, caption=
Schematic diagram of an MTL model with hard parameter sharing, figureFileSmall=ROAxHjRo6+kJjWJCqNEuSg==, figureFileBig=l4aVTAHNMgtmCPU9XiU6hg==, tableContent=null), ArticleFig(id=1325150005773873507, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图3, caption=
硬参数共享的多任务学习模型示意图, figureFileSmall=ROAxHjRo6+kJjWJCqNEuSg==, figureFileBig=l4aVTAHNMgtmCPU9XiU6hg==, tableContent=null), ArticleFig(id=1325150008193986918, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 4, caption=
Finite element model of the corrugated sandwich beam, figureFileSmall=BnSkEXQkyW2rn2TMrGm4Ng==, figureFileBig=fkHkAzkLKDOFaHmTTyntog==, tableContent=null), ArticleFig(id=1325150008621805927, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图4, caption=
波纹夹芯梁的有限元模型, figureFileSmall=BnSkEXQkyW2rn2TMrGm4Ng==, figureFileBig=fkHkAzkLKDOFaHmTTyntog==, tableContent=null), ArticleFig(id=1325150009880097128, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 5, caption=
Validation of model effectiveness, figureFileSmall=QjRF/9ohytCqB+dlviK4zw==, figureFileBig=x0E/tAfC3lNal82JUTnTlg==, tableContent=null), ArticleFig(id=1325150010333081961, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图5, caption=
模型有效性验证, figureFileSmall=QjRF/9ohytCqB+dlviK4zw==, figureFileBig=x0E/tAfC3lNal82JUTnTlg==, tableContent=null), ArticleFig(id=1325150011998220651, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 6, caption=
Projection distribution of LHS samples in the parameter space, figureFileSmall=E633Kt2U+JkkSDvod5tUSw==, figureFileBig=a5NsWXp2PQFT0Z8RRiPMJA==, tableContent=null), ArticleFig(id=1325150012891607404, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图6, caption=
LHS样本在参数空间中的投影分布, figureFileSmall=E633Kt2U+JkkSDvod5tUSw==, figureFileBig=a5NsWXp2PQFT0Z8RRiPMJA==, tableContent=null), ArticleFig(id=1325150013646582125, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 7, caption=
Stability verification and performance comparison through repeated training-testing of models, figureFileSmall=mX5PAzzy38vKsWnX5e8aUw==, figureFileBig=GPLVlHbvwwzgtrdTiiRC1w==, tableContent=null), ArticleFig(id=1325150014472860014, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图7, caption=
模型重复训练-测试的稳定性验证与性能对比, figureFileSmall=mX5PAzzy38vKsWnX5e8aUw==, figureFileBig=GPLVlHbvwwzgtrdTiiRC1w==, tableContent=null), ArticleFig(id=1325150016570012016, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 8, caption=
Regression analysis for test samples, figureFileSmall=rnF/Va6UEJfSpPaIbXMCaQ==, figureFileBig=mHOVy+nkd0lXLaIMNkG6bQ==, tableContent=null), ArticleFig(id=1325150017077522802, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图8, caption=
测试样本的回归分析, figureFileSmall=rnF/Va6UEJfSpPaIbXMCaQ==, figureFileBig=mHOVy+nkd0lXLaIMNkG6bQ==, tableContent=null), ArticleFig(id=1325150017861857651, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 9, caption=
Influence of the core unit cell count on the impact structural response of sandwich beams, figureFileSmall=JS7pn4OQF6sYsnda+SVY3g==, figureFileBig=b08YlXhR+6P890D/HW7FMA==, tableContent=null), ArticleFig(id=1325150018717495668, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图9, caption=
胞元数量对夹芯梁冲击结构响应的影响, figureFileSmall=JS7pn4OQF6sYsnda+SVY3g==, figureFileBig=b08YlXhR+6P890D/HW7FMA==, tableContent=null), ArticleFig(id=1325150021208912247, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 10, caption=
Influence of the core unit cell count on the deformation mode of sandwich beams, figureFileSmall=YLMaEc3e64sTt9lo+fLDsA==, figureFileBig=12Tm/fjUTKRKZO7JG7d9SA==, tableContent=null), ArticleFig(id=1325150021691257208, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图10, caption=
胞元数量对夹芯梁变形模式的影响, figureFileSmall=YLMaEc3e64sTt9lo+fLDsA==, figureFileBig=12Tm/fjUTKRKZO7JG7d9SA==, tableContent=null), ArticleFig(id=1325150022056161657, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 11, caption=
Influence of top plate thickness on the impact structural response of sandwich beams, figureFileSmall=FR54HXRc2fbt/LUnSQLiTw==, figureFileBig=ZYtCDFnl3oOxR1dEyVAL7g==, tableContent=null), ArticleFig(id=1325150022920188282, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图11, caption=
上面板厚度对夹芯梁冲击结构响应的影响, figureFileSmall=FR54HXRc2fbt/LUnSQLiTw==, figureFileBig=ZYtCDFnl3oOxR1dEyVAL7g==, tableContent=null), ArticleFig(id=1325150022999880060, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 12, caption=
Influence of top plate thickness on the deformation mode of sandwich beams, figureFileSmall=LUlwAQO31N/E9AOa+L8iiQ==, figureFileBig=ge5RX9CdqrRNerWD6xYnnA==, tableContent=null), ArticleFig(id=1325150023364784510, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图12, caption=
上面板厚度对夹芯梁变形模式的影响, figureFileSmall=LUlwAQO31N/E9AOa+L8iiQ==, figureFileBig=ge5RX9CdqrRNerWD6xYnnA==, tableContent=null), ArticleFig(id=1325150023767437695, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 13, caption=
Influence of web thickness of the core on the impact structural response of sandwich beams, figureFileSmall=3Pem+uV8jQMx/ET5Xk7qrw==, figureFileBig=HywBwAH861D5Nz2uBmQ59A==, tableContent=null), ArticleFig(id=1325150025415799169, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图13, caption=
芯层壁厚对夹芯梁冲击结构响应的影响, figureFileSmall=3Pem+uV8jQMx/ET5Xk7qrw==, figureFileBig=HywBwAH861D5Nz2uBmQ59A==, tableContent=null), ArticleFig(id=1325150025852006786, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 14, caption=
Influence of web thickness of the core on the deformation mode of sandwich beams, figureFileSmall=UFQCfx8uV6EYoq6f9lsZhQ==, figureFileBig=xUsy6ifO85TU54Ku6TAvaA==, tableContent=null), ArticleFig(id=1325150026237882755, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图14, caption=
芯层厚度对夹芯梁变形模式的影响, figureFileSmall=UFQCfx8uV6EYoq6f9lsZhQ==, figureFileBig=xUsy6ifO85TU54Ku6TAvaA==, tableContent=null), ArticleFig(id=1325150026309185924, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 15, caption=
Influence of bottom plate thickness on the impact structural response of sandwich beams, figureFileSmall=liJ2u3rDoIwKs8ARkn+8zw==, figureFileBig=Qo3f/CaRHCS2tLWKbMpgKg==, tableContent=null), ArticleFig(id=1325150026653118853, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图15, caption=
下面板厚度对夹芯梁冲击结构响应的影响, figureFileSmall=liJ2u3rDoIwKs8ARkn+8zw==, figureFileBig=Qo3f/CaRHCS2tLWKbMpgKg==, tableContent=null), ArticleFig(id=1325150026749587847, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 16, caption=
Influence of bottom plate thickness on the deformation mode of sandwich beams, figureFileSmall=kY5+rNRRyocc98jBLHY38w==, figureFileBig=OqX2NhaM5ylmrqvX1lxfgQ==, tableContent=null), ArticleFig(id=1325150027475202440, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图16, caption=
下面板厚度对夹芯梁变形模式的影响, figureFileSmall=kY5+rNRRyocc98jBLHY38w==, figureFileBig=OqX2NhaM5ylmrqvX1lxfgQ==, tableContent=null), ArticleFig(id=1325150027584254345, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 17, caption=
Pareto optimal solution set for deformation optimization, figureFileSmall=nmMq5lTcNYWWWZpdnVh0jw==, figureFileBig=uPQUsTc1hEi4Y2idPnfyYQ==, tableContent=null), ArticleFig(id=1325150027995296138, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图17, caption=
变形优化的Pareto解集, figureFileSmall=nmMq5lTcNYWWWZpdnVh0jw==, figureFileBig=uPQUsTc1hEi4Y2idPnfyYQ==, tableContent=null), ArticleFig(id=1325150028074987915, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 18, caption=
Pareto iteration plot for energy absorption optimization, figureFileSmall=R1U3FVO3SIdasn49J2yGew==, figureFileBig=coEef56bYM++kyTRFBViIg==, tableContent=null), ArticleFig(id=1325150030046310796, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图18, caption=
吸能优化的Pareto迭代图, figureFileSmall=R1U3FVO3SIdasn49J2yGew==, figureFileBig=coEef56bYM++kyTRFBViIg==, tableContent=null), ArticleFig(id=1325150030448963981, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 19, caption=
Pareto optimal solution set for energy absorption and deformation optimization, figureFileSmall=ZuGQ000sY4HbhqDxLH4X9g==, figureFileBig=P2dxBw38icyW+Lp4cILfmA==, tableContent=null), ArticleFig(id=1325150031002612110, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图19, caption=
吸能与变形优化的Pareto解集, figureFileSmall=ZuGQ000sY4HbhqDxLH4X9g==, figureFileBig=P2dxBw38icyW+Lp4cILfmA==, tableContent=null), ArticleFig(id=1325150031329767823, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Fig. 20, caption=
Error between prediction and finite element simulation results, figureFileSmall=Yz3RIzY7Js0niRC0EIVN3A==, figureFileBig=QFOD99xFwZm/LQCYf+gYjQ==, tableContent=null), ArticleFig(id=1325150031761781136, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=图20, caption=
预测结果与有限元模拟结果之间的误差, figureFileSmall=Yz3RIzY7Js0niRC0EIVN3A==, figureFileBig=QFOD99xFwZm/LQCYf+gYjQ==, tableContent=null), ArticleFig(id=1325150032508367249, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Table 1, caption=
Material parameters of the corrugated sandwich beam[23], figureFileSmall=null, figureFileBig=null, tableContent=
| Material | Density/(g·cm−3) | Young’s modulus/GPa | Yield stress/MPa | Poisson’s ratio |
|---|
| A6N01S-T5 | 2.7 | 69 | 181.91 | 0.33 |
), ArticleFig(id=1325150033414336914, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=表1, caption=
波纹夹芯梁的材料参数[23]
, figureFileSmall=null, figureFileBig=null, tableContent=
| Material | Density/(g·cm−3) | Young’s modulus/GPa | Yield stress/MPa | Poisson’s ratio |
|---|
| A6N01S-T5 | 2.7 | 69 | 181.91 | 0.33 |
), ArticleFig(id=1325150034299335059, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Table 2, caption=
Comparison of experimental and finite element simulation results for impact response at non-nodal positions, figureFileSmall=null, figureFileBig=null, tableContent=
| Ei/J | Experimental result | | Simulation result | Mean relativeerror/% |
|---|
| Esa/(J·g−1) | δmax/mm | Fmax/kN | | Esa/(J·g−1) | δmax/mm | Fmax/kN |
|---|
| 30 | 0.201 | 11.56 | 5.31 | | 0.208 | 11.84 | 5.43 | 2.72 |
| 50 | 0.290 | 15.06 | 6.65 | | 0.292 | 14.93 | 6.78 | 1.17 |
| 90 | 0.530 | 20.38 | 9.05 | | 0.522 | 19.81 | 9.26 | 2.21 |
), ArticleFig(id=1325150035452768660, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=表2, caption=
非节点位置冲击下实验与有限元模拟冲击响应结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| Ei/J | Experimental result | | Simulation result | Mean relativeerror/% |
|---|
| Esa/(J·g−1) | δmax/mm | Fmax/kN | | Esa/(J·g−1) | δmax/mm | Fmax/kN |
|---|
| 30 | 0.201 | 11.56 | 5.31 | | 0.208 | 11.84 | 5.43 | 2.72 |
| 50 | 0.290 | 15.06 | 6.65 | | 0.292 | 14.93 | 6.78 | 1.17 |
| 90 | 0.530 | 20.38 | 9.05 | | 0.522 | 19.81 | 9.26 | 2.21 |
), ArticleFig(id=1325150035909947797, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Table 3, caption=
Value range of input features, figureFileSmall=null, figureFileBig=null, tableContent=
| n | t1/mm | tc/mm | t2/mm | ρc/(g·cm−3) |
|---|
| 2, 4, 6 | 1.6−2.4 | 0.8−1.6 | 1.6−2.4 | 0.064−0.276 |
), ArticleFig(id=1325150036702671254, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=表3, caption=
输入特征的取值范围
, figureFileSmall=null, figureFileBig=null, tableContent=
| n | t1/mm | tc/mm | t2/mm | ρc/(g·cm−3) |
|---|
| 2, 4, 6 | 1.6−2.4 | 0.8−1.6 | 1.6−2.4 | 0.064−0.276 |
), ArticleFig(id=1325150037168238999, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Table 4, caption=
Performance comparison between SVR and MTL models, figureFileSmall=null, figureFileBig=null, tableContent=
| Model | Output | R² | MAE | RMSE | tt/s | tp/s |
|---|
| SVR | Esa | 0.9541 | 0.0076 | 0.0101 | 0.10 | 0.10 |
| δmax | 0.9811 | 0.3165 | 0.4015 |
| Fmax | 0.9626 | 0.3593 | 0.4690 |
| MTL | Esa | 0.9868 | 0.0048 | 0.0059 | 2.18 | 0.10 |
| δmax | 0.9937 | 0.2037 | 0.2791 |
| Fmax | 0.9869 | 0.2385 | 0.3124 |
), ArticleFig(id=1325150038879515032, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=表4, caption=
SVR与MTL模型的性能对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| Model | Output | R² | MAE | RMSE | tt/s | tp/s |
|---|
| SVR | Esa | 0.9541 | 0.0076 | 0.0101 | 0.10 | 0.10 |
| δmax | 0.9811 | 0.3165 | 0.4015 |
| Fmax | 0.9626 | 0.3593 | 0.4690 |
| MTL | Esa | 0.9868 | 0.0048 | 0.0059 | 2.18 | 0.10 |
| δmax | 0.9937 | 0.2037 | 0.2791 |
| Fmax | 0.9869 | 0.2385 | 0.3124 |
), ArticleFig(id=1325150039332499865, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Table 5, caption=
Comparison of deformation optimization results with those of the control group, figureFileSmall=null, figureFileBig=null, tableContent=
| Method | n | t1/mm | tc/mm | t2/mm | MTL | | Simulation |
|---|
| δmax/mm | Fmax/kN | | δmax/mm | Fmax/kN |
|---|
| Knee point | 6 | 2.4 | 1.0 | 1.6 | 11.56 | 5.38 | | 11.64 | 5.23 |
| Control group | 2 | 2.0 | 1.8 | 2.0 | | | | 15.06 | 6.65 |
), ArticleFig(id=1325150039726764442, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=表5, caption=
变形优化结果与对照组的比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| Method | n | t1/mm | tc/mm | t2/mm | MTL | | Simulation |
|---|
| δmax/mm | Fmax/kN | | δmax/mm | Fmax/kN |
|---|
| Knee point | 6 | 2.4 | 1.0 | 1.6 | 11.56 | 5.38 | | 11.64 | 5.23 |
| Control group | 2 | 2.0 | 1.8 | 2.0 | | | | 15.06 | 6.65 |
), ArticleFig(id=1325150040506904987, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Table 6, caption=
Comparison of energy absorption optimization results with those of the control group, figureFileSmall=null, figureFileBig=null, tableContent=
| Method | n | t1/mm | tc/mm | t2/mm | MTL | | Simulation |
|---|
| Esa/(J·g−1) | Fmax/kN | | Esa/(J·g−1) | Fmax/kN |
|---|
| Knee point | 2 | 1.6 | 0.8 | 1.6 | 0.395 | 2.57 | | 0.388 | 2.68 |
| Control group | 2 | 2.0 | 1.8 | 2.0 | | | | 0.297 | 6.65 |
), ArticleFig(id=1325150040922141084, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=表6, caption=
吸能优化结果与对照组的比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| Method | n | t1/mm | tc/mm | t2/mm | MTL | | Simulation |
|---|
| Esa/(J·g−1) | Fmax/kN | | Esa/(J·g−1) | Fmax/kN |
|---|
| Knee point | 2 | 1.6 | 0.8 | 1.6 | 0.395 | 2.57 | | 0.388 | 2.68 |
| Control group | 2 | 2.0 | 1.8 | 2.0 | | | | 0.297 | 6.65 |
), ArticleFig(id=1325150041341571485, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=EN, label=Table 7, caption=
Comparison of energy absorption and deformation optimization results with those of the control group, figureFileSmall=null, figureFileBig=null, tableContent=
| Method | n | t1/mm | tc/mm | t2/mm | MTL | | Simulation |
|---|
| Esa/(J·g−1) | δmax/mm | Fmax/kN | | Esa/(J·g−1) | δmax/mm | Fmax/kN |
|---|
| Knee point | 4 | 2.3 | 0.9 | 1.6 | 0.311 | 14.11 | 4.71 | | 0.304 | 14.21 | 4.66 |
| Control group | 2 | 2.0 | 1.8 | 2.0 | | | | | 0.297 | 15.06 | 6.65 |
), ArticleFig(id=1325150041740030366, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1325149885359599853, language=CN, label=表7, caption=
吸能及变形优化结果与对照组的比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| Method | n | t1/mm | tc/mm | t2/mm | MTL | | Simulation |
|---|
| Esa/(J·g−1) | δmax/mm | Fmax/kN | | Esa/(J·g−1) | δmax/mm | Fmax/kN |
|---|
| Knee point | 4 | 2.3 | 0.9 | 1.6 | 0.311 | 14.11 | 4.71 | | 0.304 | 14.21 | 4.66 |
| Control group | 2 | 2.0 | 1.8 | 2.0 | | | | | 0.297 | 15.06 | 6.65 |
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