Article(id=1227591037246440275, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1227591023870800760, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.202305008, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1683129600000, receivedDateStr=2023-05-04, revisedDate=1689091200000, revisedDateStr=2023-07-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1770610110817, onlineDateStr=2026-02-09, pubDate=1754755200000, pubDateStr=2025-08-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770610110817, onlineIssueDateStr=2026-02-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770610110817, creator=13701087609, updateTime=1770610110817, updator=13701087609, issue=Issue{id=1227591023870800760, tenantId=1146029695717560320, journalId=1225147924628267009, year='2025', volume='38', issue='8', pageStart='1645', pageEnd='1934', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1770610107611, creator=13701087609, updateTime=1770610373804, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1227592140348388157, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1227591023870800760, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1227592140348388158, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1227591023870800760, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1739, endPage=1746, ext={EN=ArticleExt(id=1227591037581984603, articleId=1227591037246440275, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=Dynamic response diagnosis method for poor condition of high-speed railway fasteners, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to improve the intelligence of fastener disease diagnosis,a fastener condition diagnosis method is proposed based on vehicle dynamic response data and generalized demodulation time-frequency analysis combined with sparrow search algorithm-support vector machine (SSA-SVM) model. The acceleration signals of the normal and abnormal sections of the fastener are collected,and the short-time Fourier transform and the maximum overlapping discrete wavelet packet transform are used to preprocess the signal data. The generalized demodulation time-frequency analysis method is used to decompose the signal,and the effective value,energy contribution rate and wavelength of the main information components are calculated as the characteristic index. The characteristic index is trained by the joint SSA-SVM model to construct the classification model. The results show that the accuracy of the method is 97.50%,and several evaluation indicators are used to verify that its effectiveness and accuracy can meet the actual needs.
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为解决传统高速铁路扣件状态诊断依赖于人工巡检的问题,提高扣件状态诊断的智能化,提出一种基于车辆动态响应数据,应用广义解调时频分析联合麻雀搜索算法优化支持向量机(sparrow search algorithm-support vector machine,SSA-SVM)的扣件状态诊断方法。利用安装在高速综合检测列车上的加速度传感器,采集扣件正常与失效区段的车辆振动响应信号,使用短时傅里叶变换与最大重叠离散小波包变换对信号数据进行预处理,获取频域信息与相位信息;利用广义解调时频分析方法分解信号,计算主要信息分量的有效值、能量贡献率和波长,作为扣件状态诊断的特征指标;联合SSA-SVM模型训练特征指标,用于构建分类模型。结果表明:该方法对高速铁路扣件状态诊断的准确率达到97.50%,SSA-SVM模型诊断效果优于其他方法,且使用多个评价指标验证其有效性和准确率能够满足实际应用的需求。
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Science Technology and Engineering,
2021,
21(10):4025-4029., articleTitle=Fault diagnosis of rolling bearing based on sparrow search algorithm optimized support vector machine, refAbstract=null)], funds=[Fund(id=1227653590634922604, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, awardId=P2018G051-3, language=CN, fundingSource=中国铁路总公司科技研究开发计划项目(P2018G051-3), fundOrder=null, country=null), Fund(id=1227653590764946033, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, awardId=2019YJ153, language=CN, fundingSource=中国铁道科学研究院集团有限公司科研开发基金资助项目(2019YJ153), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1227653580857999434, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, xref=1., ext=[AuthorCompanyExt(id=1227653580866388044, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, companyId=1227653580857999434, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.School of Mathematics and Physics,North China Electric Power University,Beijing 102206,China), AuthorCompanyExt(id=1227653580878970958, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, companyId=1227653580857999434, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.华北电力大学数理学院,北京 102206)]), AuthorCompany(id=1227653580983828569, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, xref=2., ext=[AuthorCompanyExt(id=1227653581004800092, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, companyId=1227653580983828569, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.中国铁道科学研究院集团有限公司基础设施检测研究所,北京 100081)])], figs=[ArticleFig(id=1227653585392042336, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Fig. 1, caption=
Axle box acceleration under abnormal condition of fastener, figureFileSmall=gYRQbtKqn8NiwhdPXWSUJA==, figureFileBig=R7aLFR221l0g9AgA5qfU2Q==, tableContent=null), ArticleFig(id=1227653585505288557, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=图1, caption=
扣件失效状态的轴箱加速度, figureFileSmall=gYRQbtKqn8NiwhdPXWSUJA==, figureFileBig=R7aLFR221l0g9AgA5qfU2Q==, tableContent=null), ArticleFig(id=1227653585597563252, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Fig. 2, caption=
Marginal spectrum of normal section of fastener, figureFileSmall=TzYdXc8oia0CpibAb983Hg==, figureFileBig=EHUxWcuB7cOLzDPXo8YgCw==, tableContent=null), ArticleFig(id=1227653585668866429, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=图2, caption=
扣件正常区段边际谱, figureFileSmall=TzYdXc8oia0CpibAb983Hg==, figureFileBig=EHUxWcuB7cOLzDPXo8YgCw==, tableContent=null), ArticleFig(id=1227653585761141127, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Fig. 3, caption=
Marginal spectrum of abnormal section of fastener, figureFileSmall=/kcXwpl+Fqi1y8s9DZ/3pg==, figureFileBig=ktz1g5a6omQ/bLKSKQDIrg==, tableContent=null), ArticleFig(id=1227653585861804432, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=图3, caption=
扣件失效区段边际谱, figureFileSmall=/kcXwpl+Fqi1y8s9DZ/3pg==, figureFileBig=ktz1g5a6omQ/bLKSKQDIrg==, tableContent=null), ArticleFig(id=1227653585958273431, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Fig. 4, caption=
Short-time Fourier time-frequency spectrum of fastener abnormal state, figureFileSmall=5vG9VWxWiNohvvOkUpvKww==, figureFileBig=Krq8n5cODu6e5Mf2TiWacQ==, tableContent=null), ArticleFig(id=1227653586054742430, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=图4, caption=
扣件失效状态的短时傅里叶时频谱, figureFileSmall=5vG9VWxWiNohvvOkUpvKww==, figureFileBig=Krq8n5cODu6e5Mf2TiWacQ==, tableContent=null), ArticleFig(id=1227653586151211429, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Fig. 5, caption=
The processing results of fastener failure signals based on MODWPT, figureFileSmall=+ALM6AXaHWu15yiWAjiQ8Q==, figureFileBig=/t5qNKLf8uITMr65cnSrtA==, tableContent=null), ArticleFig(id=1227653586264457644, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=图5, caption=
基于MODWPT的扣件失效信号处理结果, figureFileSmall=+ALM6AXaHWu15yiWAjiQ8Q==, figureFileBig=/t5qNKLf8uITMr65cnSrtA==, tableContent=null), ArticleFig(id=1227653586339955120, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Fig. 6, caption=
Hilbert spectrum of signal obtained by generalized demodulation, figureFileSmall=ItK7nBPw4N/EY261dxxVvA==, figureFileBig=cobRTj8fsysUnXgaANXkEQ==, tableContent=null), ArticleFig(id=1227653586507727292, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=图6, caption=
信号由广义解调得到的Hilbert谱, figureFileSmall=ItK7nBPw4N/EY261dxxVvA==, figureFileBig=cobRTj8fsysUnXgaANXkEQ==, tableContent=null), ArticleFig(id=1227653586730025413, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Fig. 7, caption=
Marginal spectrum of main component signal, figureFileSmall=RnKbaqFtLcIIqUsXvc2FsQ==, figureFileBig=hKfTceedR7S8FpEWJN43Ow==, tableContent=null), ArticleFig(id=1227653586876826064, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=图7, caption=
主要分量信号的边际谱, figureFileSmall=RnKbaqFtLcIIqUsXvc2FsQ==, figureFileBig=hKfTceedR7S8FpEWJN43Ow==, tableContent=null), ArticleFig(id=1227653587044598238, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Fig. 8, caption=
Flowchart of SSA-SVM model, figureFileSmall=oY0aIiGNhTnVkMGg9U/UxQ==, figureFileBig=MimusBKl+HY+Z8mJ60AIDQ==, tableContent=null), ArticleFig(id=1227653587153650151, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=图8, caption=
SSA-SVM模型流程图, figureFileSmall=oY0aIiGNhTnVkMGg9U/UxQ==, figureFileBig=MimusBKl+HY+Z8mJ60AIDQ==, tableContent=null), ArticleFig(id=1227653587308839408, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Fig. 9, caption=
Scatter diagram of SSA-SVM identification results, figureFileSmall=IspDLn/XQE2rHHxyy9MJqA==, figureFileBig=Vtj0nQIK9fNnSFWPMxBf9A==, tableContent=null), ArticleFig(id=1227653587443057145, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=图9, caption=
SSA-SVM辨识结果散点图, figureFileSmall=IspDLn/XQE2rHHxyy9MJqA==, figureFileBig=Vtj0nQIK9fNnSFWPMxBf9A==, tableContent=null), ArticleFig(id=1227653587552109057, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Fig. 10, caption=
ROC curve,KS value and AUC value, figureFileSmall=wNKahbKQG3I1BVrJRXh4DA==, figureFileBig=/2D7QsUvAh368gvpc3vdUw==, tableContent=null), ArticleFig(id=1227653587690521097, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=图10, caption=
ROC曲线以及KS值和AUC值, figureFileSmall=wNKahbKQG3I1BVrJRXh4DA==, figureFileBig=/2D7QsUvAh368gvpc3vdUw==, tableContent=null), ArticleFig(id=1227653587812155916, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Tab. 1, caption=
Effective values of fasteners under different working conditions
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), ArticleFig(id=1227653587946373653, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=表1, caption=
不同工作状态扣件的有效值
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), ArticleFig(id=1227653588051231262, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Tab. 2, caption=
Energy contribution rate of fasteners under different working conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
| 扣件状态 | 能量贡献率 |
|---|
| 正常 | 0~0.03 |
| 失效 | 0.05~10 |
), ArticleFig(id=1227653588143505953, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=表2, caption=
不同工作状态扣件的能量贡献率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 扣件状态 | 能量贡献率 |
|---|
| 正常 | 0~0.03 |
| 失效 | 0.05~10 |
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Wavelength values of fasteners under different working conditions
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), ArticleFig(id=1227653589645066800, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=表3, caption=
不同工作状态扣件的波长值
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), ArticleFig(id=1227653589762507318, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Tab. 4, caption=
Results of model comparison experiments
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| 序号 | 模型名称 | 分类准确率/% | 模型训练时间/s |
|---|
| 1 | SVM | 91.25 | 13.75 |
| 2 | PSO-SVM | 95.00 | 33.85 |
| 3 | SSA-SVM | 97.50 | 17.64 |
), ArticleFig(id=1227653589888336444, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=CN, label=表4, caption=
模型对比试验结果
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| 序号 | 模型名称 | 分类准确率/% | 模型训练时间/s |
|---|
| 1 | SVM | 91.25 | 13.75 |
| 2 | PSO-SVM | 95.00 | 33.85 |
| 3 | SSA-SVM | 97.50 | 17.64 |
), ArticleFig(id=1227653590030942788, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227591037246440275, language=EN, label=Tab. 5, caption=
Confusion matrix
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| 预测样本 | 实际正样本 | 实际负样本 |
|---|
| 正确预测样本 | TP | FP |
| 错误预测样本 | FN | TN |
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混淆矩阵
, figureFileSmall=null, figureFileBig=null, tableContent=
| 预测样本 | 实际正样本 | 实际负样本 |
|---|
| 正确预测样本 | TP | FP |
| 错误预测样本 | FN | TN |
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Calculation results of model evaluation indicators
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| 精确率 | 召回率 | F1分值 |
|---|
| 0.9723 | 0.9356 | 0.9547 |
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模型评价指标计算结果
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| 精确率 | 召回率 | F1分值 |
|---|
| 0.9723 | 0.9356 | 0.9547 |
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