Article(id=1228805361189191979, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228805359561802007, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2025.06.023, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1745683200000, receivedDateStr=2025-04-27, revisedDate=1748102400000, revisedDateStr=2025-05-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1770899628207, onlineDateStr=2026-02-12, pubDate=1749484800000, pubDateStr=2025-06-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770899628207, onlineIssueDateStr=2026-02-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770899628207, creator=13701087609, updateTime=1770899628207, updator=13701087609, issue=Issue{id=1228805359561802007, tenantId=1146029695717560320, journalId=1225147924628267009, year='2025', volume='38', issue='6', pageStart='1133', pageEnd='1362', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1770899627819, creator=13701087609, updateTime=1770901542852, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1228813391846896476, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228805359561802007, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1228813391846896477, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228805359561802007, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1344, endPage=1353, ext={EN=ArticleExt(id=1228805361440850227, articleId=1228805361189191979, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=Mode component energy feature-empowered unsupervised fault localization for gear transmission systems, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Gear transmission systems are critical for power delivery in major equipment, yet they are susceptible to diverse and unpredictable to diverse and unpredictable faults, compromising operational safety and service reliability. In practical engineering applications, the absence of fault samples and unknown fault locations pose significant challenges. To address these issues, this paper proposes an unsupervised hypersphere-based fault localization (UHFL) method empowered by mode component energy features. This method extracts mode component energy features that are not only related to the fault mechanisms of transmission components but also possess clear fault localization interpretability. These features then enable both unsupervised anomaly detection and interpretable fault localization. Specifically, an unsupervised data description model is constructed using the proposed features. An attribution explanation method is introduced to quantify the contribution of each feature to the anomaly detection result, thereby achieving interpretable fault localization of gear transmission system components under conditions lacking fault samples. The proposed method is validated through single-fault and compound-fault localization experiments conducted on a helicopter main reducer planetary stage test bench and an armored vehicle transmission system test bench. Experimental results demonstrate that the proposed UHFL method can accurately localize faults in transmission components without requiring any fault sample training. This method offers an effective solution for fault localization in gear transmission systems under data-scarce conditions, showcasing valuable engineering promotion potential and application prospects.
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齿轮传动系统是重大装备动力传递的关键,然而传动系统易发生多样且难以预判的故障,影响装备的运行安全与服役可靠性。针对齿轮传动系统在实际工程应用中的故障样本缺失及故障位置未知等问题,提出了模式分量能量特征赋能的无监督故障溯源方法。该方法通过提取与传动元件故障机理相关、具有明确故障定位指向性的模式分量能量特征,赋能无监督异常检测与可解释故障溯源。具体地,使用所提特征构建无监督数据描述模型,并引入归因解释方法量化各特征对异常判定结果的贡献度,从而在无故障样本条件下,实现齿轮传动系统故障元件的可解释溯源。在直升机主减速器行星级台架与装甲车辆传动装置整机台架上,分别进行单一故障与复合故障溯源验证。试验结果表明,所提方法在无故障样本训练情况下,可以实现准确的传动元件故障溯源。本方法为齿轮传动系统在缺乏故障数据情况下的故障溯源提供了有效解决途径,具有工程推广价值与实际应用潜力。
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2.School of Mechanical Engineering,Ningxia University,Yinchuan 750021,China), AuthorCompanyExt(id=1228805364448166381, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, companyId=1228805364435583467, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.宁夏大学机械工程学院,宁夏 银川 750021)])], figs=[ArticleFig(id=1228805366562095754, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 1, caption=
Schematic of interpretable feature-enabled unsupervised fault localization method for gear transmission systems, figureFileSmall=QjnxfzA/j3xMppkWRHDjmQ==, figureFileBig=E3kAJ4jaH5MbNSrU/HDWKQ==, tableContent=null), ArticleFig(id=1228805366763422353, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图1, caption=
可解释特征赋能的齿轮传动系统无监督故障溯源方法原理图, figureFileSmall=QjnxfzA/j3xMppkWRHDjmQ==, figureFileBig=E3kAJ4jaH5MbNSrU/HDWKQ==, tableContent=null), ArticleFig(id=1228805367027663535, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 2, caption=
Flowchart of the proposed UHFL method, figureFileSmall=BI9YghAibCovmlJfVjrV1A==, figureFileBig=BDVDqVxNPAJNTlBrKC49jg==, tableContent=null), ArticleFig(id=1228805367132521143, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图2, caption=
提出的无监督故障溯源方法流程图, figureFileSmall=BI9YghAibCovmlJfVjrV1A==, figureFileBig=BDVDqVxNPAJNTlBrKC49jg==, tableContent=null), ArticleFig(id=1228805367220601534, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 3, caption=
Overview of main reducer planetary gear test system and fault components, figureFileSmall=BkJl0wIiBXzg0VmaAb8cIA==, figureFileBig=Gu+4S/CT/B0/fywe1z1O0w==, tableContent=null), ArticleFig(id=1228805367312876229, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图3, caption=
主减速器行星轮试验台架与故障件详情, figureFileSmall=BkJl0wIiBXzg0VmaAb8cIA==, figureFileBig=Gu+4S/CT/B0/fywe1z1O0w==, tableContent=null), ArticleFig(id=1228805367405150923, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 4, caption=
The original vibration waveform (left) and the frequency spectrum (right), figureFileSmall=m8NEumvpGeNCXqny3l3TuQ==, figureFileBig=DF+nk9syhm+BqvGrLWOziw==, tableContent=null), ArticleFig(id=1228805367505814227, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图4, caption=
原始振动信号波形(左)及频谱(右), figureFileSmall=m8NEumvpGeNCXqny3l3TuQ==, figureFileBig=DF+nk9syhm+BqvGrLWOziw==, tableContent=null), ArticleFig(id=1228805367602283227, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 5, caption=
The main reducer planetary gearbox anomaly detection result of the UHFL method, figureFileSmall=qaVS3KXumDwkfu8c6bweCg==, figureFileBig=GWgrR8guWl8el+TwiAB+zg==, tableContent=null), ArticleFig(id=1228805367686169313, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图5, caption=
UHFL的主减速器行星级试验台架异常检测结果, figureFileSmall=qaVS3KXumDwkfu8c6bweCg==, figureFileBig=GWgrR8guWl8el+TwiAB+zg==, tableContent=null), ArticleFig(id=1228805367782638313, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 6, caption=
Sketch of the test bench for transmission system, figureFileSmall=1vqOL2kepOpYO46fPDss1g==, figureFileBig=bowdvGNom+s9Axo7Y2EdUg==, tableContent=null), ArticleFig(id=1228805367895884531, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图6, caption=
传动装置整机试验台架简图, figureFileSmall=1vqOL2kepOpYO46fPDss1g==, figureFileBig=bowdvGNom+s9Axo7Y2EdUg==, tableContent=null), ArticleFig(id=1228805368000742138, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 7, caption=
Details of faulty component combinations for the transmission system, figureFileSmall=IGYvr7qz9r9C//wTrC0JJw==, figureFileBig=5mRhYciiMXsIFFoNlm/kjg==, tableContent=null), ArticleFig(id=1228805368105599746, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图7, caption=
传动装置故障件组合详情, figureFileSmall=IGYvr7qz9r9C//wTrC0JJw==, figureFileBig=5mRhYciiMXsIFFoNlm/kjg==, tableContent=null), ArticleFig(id=1228805368193680135, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 8, caption=
The vibration signals of the transmission system under different conditions, figureFileSmall=2UJpuRwHziwarlVwwg1X/Q==, figureFileBig=wsGaxy7R2SqcKU6RgpeJHA==, tableContent=null), ArticleFig(id=1228805368269177611, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图8, caption=
传动装置不同状态的振动信号, figureFileSmall=2UJpuRwHziwarlVwwg1X/Q==, figureFileBig=wsGaxy7R2SqcKU6RgpeJHA==, tableContent=null), ArticleFig(id=1228805368348869392, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 9, caption=
The transmission system anomaly detection result of the UHFL method, figureFileSmall=VV8yiby9nGOQm/as5plERA==, figureFileBig=K3EiOG6EJFg56t/Y2Q9cfQ==, tableContent=null), ArticleFig(id=1228805368445338390, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图9, caption=
UHFL方法的传动装置试验台架异常检测结果, figureFileSmall=VV8yiby9nGOQm/as5plERA==, figureFileBig=K3EiOG6EJFg56t/Y2Q9cfQ==, tableContent=null), ArticleFig(id=1228805368583750427, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 10, caption=
Transmission system fault localization results of the proposed method, figureFileSmall=SCVnvtlkAvxr1vtob+CqYA==, figureFileBig=uho+H6YzpWiedycQxl4NIA==, tableContent=null), ArticleFig(id=1228805368676025124, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图10, caption=
所提方法传动装置故障溯源结果, figureFileSmall=SCVnvtlkAvxr1vtob+CqYA==, figureFileBig=uho+H6YzpWiedycQxl4NIA==, tableContent=null), ArticleFig(id=1228805368764105515, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 11, caption=
Comparison of transmission system fault localization results of clustering methods, figureFileSmall=xDu0wxhEJYGT1M5o+q3i3g==, figureFileBig=GKMDYfMA+XBPGW5VFsGN/Q==, tableContent=null), ArticleFig(id=1228805368889934639, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图11, caption=
聚类方法的传动装置故障溯源结果对比, figureFileSmall=xDu0wxhEJYGT1M5o+q3i3g==, figureFileBig=GKMDYfMA+XBPGW5VFsGN/Q==, tableContent=null), ArticleFig(id=1228805368986403638, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Fig. 12, caption=
Comparison of fault combination 3 localization results of contribution ranking methods, figureFileSmall=/aHNg2fB2gUqWsY+tLn/YA==, figureFileBig=pqYPewuKsPVOKStPNKwZ7Q==, tableContent=null), ArticleFig(id=1228805369074484029, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=图12, caption=
贡献度排序方法的故障组合3溯源结果对比, figureFileSmall=/aHNg2fB2gUqWsY+tLn/YA==, figureFileBig=pqYPewuKsPVOKStPNKwZ7Q==, tableContent=null), ArticleFig(id=1228805369179341634, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Tab.1, caption=
Pseudocode of the proposed UHFL method
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法1:提出的无监督故障溯源方法算法 |
|---|
| 输入:正常状态信号和被测信号 |
特征提取: 获取与故障相关的模式分量并构建可解释的模式分量能量特征,得到训练集合Xtrain和测试样本xZ 无监督数据描述模型构建: 使用正常状态特征集合Xtrain构建数据描述超球体,将决策边界R2作为异常检测阈值 |
故障溯源: For 被测样本特征xZ 计算xZ到超球中心的距离HDD(xZ) |
IfHDD(xZ)≤R2 系统处于正常状态 Else 系统处于异常状态 |
构建伴随模型g(z′) For 异常样本的全部特征J 计算特征的夏普利归因值ψj 排序归因值ψj 依据模式分量能量特征获得溯源结果 For 循环结束 End If For 循环结束 |
| 输出:故障溯源结果 |
), ArticleFig(id=1228805369254839114, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=表1, caption=
提出的无监督故障溯源方法伪代码
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法1:提出的无监督故障溯源方法算法 |
|---|
| 输入:正常状态信号和被测信号 |
特征提取: 获取与故障相关的模式分量并构建可解释的模式分量能量特征,得到训练集合Xtrain和测试样本xZ 无监督数据描述模型构建: 使用正常状态特征集合Xtrain构建数据描述超球体,将决策边界R2作为异常检测阈值 |
故障溯源: For 被测样本特征xZ 计算xZ到超球中心的距离HDD(xZ) |
IfHDD(xZ)≤R2 系统处于正常状态 Else 系统处于异常状态 |
构建伴随模型g(z′) For 异常样本的全部特征J 计算特征的夏普利归因值ψj 排序归因值ψj 依据模式分量能量特征获得溯源结果 For 循环结束 End If For 循环结束 |
| 输出:故障溯源结果 |
), ArticleFig(id=1228805369372279630, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Tab.2, caption=
Characteristic frequency of the main reducer planetary gear test bench
, figureFileSmall=null, figureFileBig=null, tableContent=
| fshaft/Hz | fmesh/Hz | fplanet/Hz | fsun/Hz |
|---|
| 40.00 | 1029.71 | 28.60 | 30.29 |
), ArticleFig(id=1228805369481331543, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=表2, caption=
主减速器行星级试验台架故障特征频率
, figureFileSmall=null, figureFileBig=null, tableContent=
| fshaft/Hz | fmesh/Hz | fplanet/Hz | fsun/Hz |
|---|
| 40.00 | 1029.71 | 28.60 | 30.29 |
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Fault localization results for the main reducer planetary gear test bench
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| 方法 | 准确率/% |
|---|
| PCA+SPE | 70.73 |
| GMM | 81.00 |
| MIL | 86.19 |
| UDTL | 97.84 |
| UHFL | 99.86 |
), ArticleFig(id=1228805369657492320, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=表3, caption=
主减速器行星级试验台架故障溯源准确率
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| 方法 | 准确率/% |
|---|
| PCA+SPE | 70.73 |
| GMM | 81.00 |
| MIL | 86.19 |
| UDTL | 97.84 |
| UHFL | 99.86 |
), ArticleFig(id=1228805369762349929, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Tab.4, caption=
Components characteristic orders of the transmission system
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故障特征 阶次 | 定轴传动机构 故障件 | 行星变速机构 故障件 |
|---|
风扇传动 输入齿轮 | 变矩器输入 齿轮 | 前传动支撑 轴承 | 长行星 齿轮 | 长行星轮 滚针轴承 |
|---|
| 啮合 | 59.0000 | 53.0350 | − | 89.1966 | − |
| 调制 | 1.5946 | 1.5599 | − | 3.0106 | − |
| 内圈 | − | − | 6.8322 | − | 24.0852 |
| 外圈 | − | − | 5.1678 | − | 18.0641 |
| 保持架 | − | − | 0.4306 | − | 1.7204 |
), ArticleFig(id=1228805369888179060, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=表4, caption=
传动装置各部件特征阶次
, figureFileSmall=null, figureFileBig=null, tableContent=
故障特征 阶次 | 定轴传动机构 故障件 | 行星变速机构 故障件 |
|---|
风扇传动 输入齿轮 | 变矩器输入 齿轮 | 前传动支撑 轴承 | 长行星 齿轮 | 长行星轮 滚针轴承 |
|---|
| 啮合 | 59.0000 | 53.0350 | − | 89.1966 | − |
| 调制 | 1.5946 | 1.5599 | − | 3.0106 | − |
| 内圈 | − | − | 6.8322 | − | 24.0852 |
| 外圈 | − | − | 5.1678 | − | 18.0641 |
| 保持架 | − | − | 0.4306 | − | 1.7204 |
), ArticleFig(id=1228805369993036663, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=EN, label=Tab.5, caption=
Fault localization results for the transmission system test bench
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| 方法 | 准确率% |
|---|
| PCA+SPE | 69.44 |
| RCS | 92.78 |
| UHFL | 99.39 |
), ArticleFig(id=1228805370097894270, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805361189191979, language=CN, label=表5, caption=
传动装置试验台架故障溯源准确率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 准确率% |
|---|
| PCA+SPE | 69.44 |
| RCS | 92.78 |
| UHFL | 99.39 |
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