Article(id=1149776902052864733, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149776900194791454, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2403630, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1715788800000, receivedDateStr=2024-05-16, revisedDate=1722441600000, revisedDateStr=2024-08-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1752057775270, onlineDateStr=2025-07-09, pubDate=1744905600000, pubDateStr=2025-04-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752057775270, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752057775270, creator=13701087609, updateTime=1752057775270, updator=13701087609, issue=Issue{id=1149776900194791454, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='11', pageStart='4397', pageEnd='4826', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752057774827, creator=13701087609, updateTime=1768456666677, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218558837930512931, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149776900194791454, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218558837930512932, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149776900194791454, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=4621, endPage=4628, ext={EN=ArticleExt(id=1149776902279357150, articleId=1149776902052864733, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Fault Diagnosis Method of Rotating Machinery Based on Unsupervised Cross-modal Euler Discriminant Space, columnId=1156262729162810294, journalTitle=Science Technology and Engineering, columnName=Papers·Automation and Computational Technology, runingTitle=null, highlight=null, articleAbstract=
The high-precision fault diagnosis of cross modal high-dimensional fault data under unsupervised conditions is a challenging problem. To address this issue, a rotating machinery fault diagnosis method based on unsupervised cross-modal Euler discriminant space (UCEDS) was proposed. In this method, cross-modal fault data samples were mapped to Euler representations through cosine metrics to enhance the differences and separability between different types of fault samples. Then, an unsupervised cross modal Euler discriminant space learning model was constructed in this space, and the analytical solution of the model was theoretically derived. This model not only considered the local neighborhood structure of fault samples, but also effectively discovered the local structural information of complex and nonlinear fault feature samples. At the same time, on the basis of cross modal consistent discriminative fusion, it further improved the complementarity between low dimensional discriminative feature subsets. Targeted experiments on the Paderborn fault bearing dataseht showed that the proposed UCEDS method had superior fault diagnosis and classification performance.
, correspAuthors=Yan-min ZHU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, 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, authorCompany=null, fund=null, authors=null, authorsList=Jian CHEN, Shu-zhi SU, Yan-min ZHU), CN=ArticleExt(id=1149776918792332108, articleId=1149776902052864733, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=基于无监督跨模态欧拉判别空间的旋转机械故障诊断方法, columnId=1156262729783567290, journalTitle=科学技术与工程, columnName=论文·自动化技术、计算机技术, runingTitle=null, highlight=null, articleAbstract=
在无监督情况下,进行跨模态高维故障数据高精度的故障诊断是一个挑战性问题,针对该问题,提出了一种基于无监督跨模态欧拉判别空间的旋转机械故障诊断方法(unsupervised cross-modal Euler discriminant space, UCEDS)。在该方法中,跨模态故障数据样本通过余弦度量映射到欧拉表示,增强不同类型故障样本之间的差异性和可分性,然后在该空间中构建无监督跨模态欧拉判别空间学习模型,在理论上推导出了模型的解析解。该模型不仅考虑了故障样本的局部邻域结构,能够有效地发现复杂和非线性故障特征样本的局部结构信息,同时,在跨模态一致判别融合的基础上,进一步提高了低维判别特征子集模态间的互补性。在帕德博恩故障轴承数据集上的针对性实验表明,本文提出的UCEDS方法具有优越的故障诊断分类性能。
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基于UCEDS的故障诊断流程, figureFileSmall=MLLBvjm+UiIOha+MdAHdEw==, figureFileBig=HWLptSxhAdpGy4QJ0lKl9g==, tableContent=null), ArticleFig(id=1218843914220519875, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=EN, label=Fig.2, caption=
Paderborn experimental platform, figureFileSmall=ELdBTr7kDpB4OpA5zD33bg==, figureFileBig=cBvG2uoGXXpJ+sZLIOLhAA==, tableContent=null), ArticleFig(id=1218843914329571788, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=CN, label=图2, caption=
Paderborn轴承实验平台, figureFileSmall=ELdBTr7kDpB4OpA5zD33bg==, figureFileBig=cBvG2uoGXXpJ+sZLIOLhAA==, tableContent=null), ArticleFig(id=1218843914451206613, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=EN, label=Fig.3, caption=
The average recognition rate varies with the number of random samples, figureFileSmall=ybtugNGGznRf+3b8bX3UKg==, figureFileBig=U8Sl2kxbZJeo6XsnixuZDA==, tableContent=null), ArticleFig(id=1218843914610590175, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=CN, label=图3, caption=
平均识别率随随机样本个数变化曲线, figureFileSmall=ybtugNGGznRf+3b8bX3UKg==, figureFileBig=U8Sl2kxbZJeo6XsnixuZDA==, tableContent=null), ArticleFig(id=1218843914774168043, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=EN, label=Fig.4, caption=
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基于不同方法的混淆矩阵, figureFileSmall=mDYkm6e56SVrxWQHc68wgA==, figureFileBig=9boEGggqj916Gr/LyCEwdQ==, tableContent=null), ArticleFig(id=1218843915004854778, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=EN, label=Fig.5, caption=
Column charts based on different operating conditions, figureFileSmall=2Rdc92wiN+2t8llLW3by0g==, figureFileBig=AnUfNoW/Z4FeRebD2+i2GA==, tableContent=null), ArticleFig(id=1218843915130683906, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=CN, label=图5, caption=
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Feature parameters of the signal
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| 序号 | 特征参数 | 序号 | 特征参数 |
| 1 | xp=max[|x(n)|] | 12 | C= |
| 2 | xmin=min[x(n)] | 13 | W= |
| 3 | = x(n) | 14 | I= |
| 4 | K= | 15 | L= |
| 5 | xr= | 16 | F4= |
| 6 | xrms= | 17 | F2= |
| 7 | δ= x2(n) | 18 | F3= |
| 8 | σx= | 19 | F1= s(k) |
| 9 | = | 20 | 四层小波包分解频 带能量特征 | |
| 10 | S= | ︙ |
| 11 | xmax=max[x(n)] | 35 |
), ArticleFig(id=1218843915357176344, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=CN, label=表1, caption=
信号的特征参数
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| 序号 | 特征参数 | 序号 | 特征参数 |
| 1 | xp=max[|x(n)|] | 12 | C= |
| 2 | xmin=min[x(n)] | 13 | W= |
| 3 | = x(n) | 14 | I= |
| 4 | K= | 15 | L= |
| 5 | xr= | 16 | F4= |
| 6 | xrms= | 17 | F2= |
| 7 | δ= x2(n) | 18 | F3= |
| 8 | σx= | 19 | F1= s(k) |
| 9 | = | 20 | 四层小波包分解频 带能量特征 | |
| 10 | S= | ︙ |
| 11 | xmax=max[x(n)] | 35 |
), ArticleFig(id=1218843915478811170, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=EN, label=Table 2, caption=
Average fault recognition rate based on different methods
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| 方法 | 平均识别率/% |
| PCA | 83.75±2.70 |
| LPP | 92.25±3.99 |
| OEEP | 83.25±4.42 |
| OCCA | 94.25±3.92 |
| UCEDS | 100.00±0.00 |
), ArticleFig(id=1218843915600445993, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=CN, label=表2, caption=
基于不同方法的平均故障识别率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 平均识别率/% |
| PCA | 83.75±2.70 |
| LPP | 92.25±3.99 |
| OEEP | 83.25±4.42 |
| OCCA | 94.25±3.92 |
| UCEDS | 100.00±0.00 |
), ArticleFig(id=1218843915772412475, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=EN, label=Table 3, caption=
Average fault recognition rate based on different operating conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
| 故障类型 | 平均识别率/% |
| PCA | LPP | OEPP | OCCA | UCEDS |
| 工况1 | 65.00±3.91 | 80.50±3.50 | 65.75±3.34 | 90.00±6.45 | 96.75±2.06 |
| 工况2 | 83.75±2.70 | 92.25±3.99 | 83.25±4.42 | 95.00±4.71 | 98.25±1.69 |
| 工况3 | 84.25±6.35 | 92.00±4.68 | 88.50±3.94 | 94.25±5.66 | 99.75±0.79 |
), ArticleFig(id=1218843915877270081, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149776902052864733, language=CN, label=表3, caption=
基于不同工况的平均故障识别率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 故障类型 | 平均识别率/% |
| PCA | LPP | OEPP | OCCA | UCEDS |
| 工况1 | 65.00±3.91 | 80.50±3.50 | 65.75±3.34 | 90.00±6.45 | 96.75±2.06 |
| 工况2 | 83.75±2.70 | 92.25±3.99 | 83.25±4.42 | 95.00±4.71 | 98.25±1.69 |
| 工况3 | 84.25±6.35 | 92.00±4.68 | 88.50±3.94 | 94.25±5.66 | 99.75±0.79 |
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