Article(id=1228295806587957493, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228295801890336965, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2025.02.022, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1674576000000, receivedDateStr=2023-01-25, revisedDate=1684252800000, revisedDateStr=2023-05-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1770778140923, onlineDateStr=2026-02-11, pubDate=1739116800000, pubDateStr=2025-02-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770778140923, onlineIssueDateStr=2026-02-11, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770778140923, creator=13701087609, updateTime=1770778140923, updator=13701087609, issue=Issue{id=1228295801890336965, tenantId=1146029695717560320, journalId=1225147924628267009, year='2025', volume='38', issue='2', pageStart='223', pageEnd='448', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1770778139803, creator=13701087609, updateTime=1770949100774, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1229012864237760763, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228295801890336965, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1229012864237760764, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228295801890336965, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=432, endPage=440, ext={EN=ArticleExt(id=1228295806856392958, articleId=1228295806587957493, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=Fault diagnosis of harmonic reducer based on multiple feature spaces adaptive network, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Due to the differences in data distribution caused by different locations of multiple measuring points, the fault diagnosis of the harmonic reducer is often ineffective. A fault diagnosis method for the harmonic reducer, based on a multiple feature spaces adaptation network (MFSAN), is proposed. Firstly, the vibration signal of the harmonic reducer is transformed using continuous wavelet transform to construct a time-frequency diagram that characterizes its operational state. Secondly, the data measured by sensors at different positions are divided into multiple source domain and target domain data, which are mapped to different feature spaces to obtain feature representations for each measuring point position. Then, the adaptive network is used to automatically transfer the knowledge learned from the source domain to the target domain features and automatically align the feature distribution of a specific domain to learn multiple domain-invariant representations. Finally, a domain-specific decision boundary is used to align the output of the classifier, effectively solving the data distribution differences caused by sensor location. Experimental results of harmonic reducer diagnosis of an industrial robot show that the identification accuracy of this method is 99.72%, which is higher than that of other comparison methods. The effectiveness and feasibility of this method are thus verified.
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由于多测点位置不同引起的数据分布差异造成谐波减速器故障诊断效果不佳,提出基于多特征空间自适应网络(multiple feature spaces adaptation network,MFSAN)的谐波减速器故障诊断方法。对谐波减速器振动信号进行连续小波变换,以构造时频图来描述其运行状态特征。将不同位置传感器所测数据划分为多个源域数据和目标域数据映射到不同特征空间,得到不同测点位置下的特征表示。利用自适应网络将源域中学习到的知识自动应用到目标域,以自动对齐特定领域的特征分布,从而学习多个域不变表示。利用领域特定的决策边界来对齐分类器的输出,从而有效减少因传感器位置差异引起的数据分布差异。在工业机器人谐波减速器诊断实验中,所提诊断方法达到了99.72%的准确率,高于其他对比方法,验证了所提诊断方法的有效性和可行性。
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Multiple feature spaces adaptation network structure, figureFileSmall=ANJ2AjrBAnFESTS8K9A9ig==, figureFileBig=UIIP97bQgj4x4yO5sjedmw==, tableContent=null), ArticleFig(id=1228313051959587388, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=图1, caption=
多特征空间自适应网络结构, figureFileSmall=ANJ2AjrBAnFESTS8K9A9ig==, figureFileBig=UIIP97bQgj4x4yO5sjedmw==, tableContent=null), ArticleFig(id=1228313052081222212, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Fig. 2, caption=
Flow chart of method, figureFileSmall=7MwCJzoAH8rTxuoWFVSE2g==, figureFileBig=Ea9ay5eJmvjFI+0SG/wfmg==, tableContent=null), ArticleFig(id=1228313052177691210, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=图2, caption=
方法流程图, figureFileSmall=7MwCJzoAH8rTxuoWFVSE2g==, figureFileBig=Ea9ay5eJmvjFI+0SG/wfmg==, tableContent=null), ArticleFig(id=1228313052269965907, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Fig. 3, caption=
Experimental device diagram, figureFileSmall=Sbzz2AjkxVWtoFnmAGnFZQ==, figureFileBig=XFARf1Q/tdrBbVPexBi6rA==, tableContent=null), ArticleFig(id=1228313052353851991, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=图3, caption=
实验装置图, figureFileSmall=Sbzz2AjkxVWtoFnmAGnFZQ==, figureFileBig=XFARf1Q/tdrBbVPexBi6rA==, tableContent=null), ArticleFig(id=1228313053746360926, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Fig. 4, caption=
The waveform and time-frequency diagram, figureFileSmall=Moh7AQokMt+5vrxcpmZ7Bg==, figureFileBig=3ptSnCZ1ZYkwaHHeDHPikA==, tableContent=null), ArticleFig(id=1228313053951881829, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=图4, caption=
波形图及时频图, figureFileSmall=Moh7AQokMt+5vrxcpmZ7Bg==, figureFileBig=3ptSnCZ1ZYkwaHHeDHPikA==, tableContent=null), ArticleFig(id=1228313054060933743, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Fig. 5, caption=
Time-frequency diagram of full cycle data of different sensors under the same fault type, figureFileSmall=bmHxD5M+JyaL05U8+XebCA==, figureFileBig=piJJzzvN7wY6i9KPr8itGg==, tableContent=null), ArticleFig(id=1228313054165791348, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=图5, caption=
同一故障类型下不同传感器的全周期数据时频图, figureFileSmall=bmHxD5M+JyaL05U8+XebCA==, figureFileBig=piJJzzvN7wY6i9KPr8itGg==, tableContent=null), ArticleFig(id=1228313054283231864, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Fig. 6, caption=
A、B→C probability density diagram, figureFileSmall=ltvM173/vuqQx6vwXNiHFQ==, figureFileBig=R7MLQ7/I9H3XnkIiMZUuZA==, tableContent=null), ArticleFig(id=1228313054371312257, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=图6, caption=
A、B→C概率密度图, figureFileSmall=ltvM173/vuqQx6vwXNiHFQ==, figureFileBig=R7MLQ7/I9H3XnkIiMZUuZA==, tableContent=null), ArticleFig(id=1228313054467781252, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Fig. 7, caption=
Comparison of classification accuracy of different adaptation methods at 30% full speed, figureFileSmall=Qgw+jfpgbxG9HnBMQFdK6w==, figureFileBig=ONbpubc7wlkqpyfvgKc38w==, tableContent=null), ArticleFig(id=1228313054593610381, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=图7, caption=
30%满转速下不同适配方法分类准确率对比, figureFileSmall=Qgw+jfpgbxG9HnBMQFdK6w==, figureFileBig=ONbpubc7wlkqpyfvgKc38w==, tableContent=null), ArticleFig(id=1228313054681690772, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Fig. 8, caption=
Comparison of classification accuracy at 100% full speed, figureFileSmall=fdKIwLXTfsvzwI8VzNByFg==, figureFileBig=okJi2Xco0Ri+LqXtfmK7jA==, tableContent=null), ArticleFig(id=1228313054786548375, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=图8, caption=
100%满转速下分类准确率对比, figureFileSmall=fdKIwLXTfsvzwI8VzNByFg==, figureFileBig=okJi2Xco0Ri+LqXtfmK7jA==, tableContent=null), ArticleFig(id=1228313054916571804, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Tab. 1, caption=
Data sample set of harmonic reducer
, figureFileSmall=null, figureFileBig=null, tableContent=
| 故障类型 | 训练集样本 | 测试集样本 | 标签类别 |
|---|
| 间隙过大 | 70 | 20 | 0 |
| 卡顿 | 70 | 20 | 1 |
| 正常 | 70 | 20 | 2 |
| 合计 | 210 | 60 | |
), ArticleFig(id=1228313055021429411, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=表1, caption=
谐波减速器数据样本集
, figureFileSmall=null, figureFileBig=null, tableContent=
| 故障类型 | 训练集样本 | 测试集样本 | 标签类别 |
|---|
| 间隙过大 | 70 | 20 | 0 |
| 卡顿 | 70 | 20 | 1 |
| 正常 | 70 | 20 | 2 |
| 合计 | 210 | 60 | |
), ArticleFig(id=1228313055147258537, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Tab. 2, caption=
Classification accuracy at 30% full speed
, figureFileSmall=null, figureFileBig=null, tableContent=
| 标准 | 方法 | 分类准确率/% |
|---|
| A、B→C | A、C→B | B、C→A | 平均值 | A→A |
|---|
| 多源 | MFSAN | 100 | 100 | 99.17 | 99.72 | - |
| MFSANMMD | 85.83 | 96.67 | 89.17 | 90.56 | - |
| MFSANdisc | 86.67 | 97.50 | 84.17 | 89.45 | - |
| 源联合 | DAN | 96.97 | 85.61 | 98.48 | 93.69 | - |
| DDC | 94.70 | 90.91 | 80.30 | 88.64 | - |
| DSAN | 95.83 | 98.33 | 95.83 | 96.66 | - |
| ResNet | 93.33 | 91.67 | 51.67 | 78.89 | - |
| 单源 | DAN | A→C | 75.00 | A→B | 75.76 | B→A | 81.06 | 78.92 | 98.36 |
| B→C | 87.88 | C→B | 69.70 | C→A | 84.09 |
| DDC | A→C | 70.45 | A→B | 68.18 | B→A | 62.88 | 68.69 | 91.12 |
| B→C | 70.45 | C→B | 76.52 | C→A | 63.64 |
| DSAN | A→C | 88.33 | A→B | 80.83 | B→A | 60.83 | 76.67 | 97.89 |
| B→C | 94.17 | C→B | 77.50 | C→A | 58.33 |
| ResNet | A→C | 65.83 | A→B | 64.17 | B→A | 40.83 | 60.42 | 92.25 |
| B→C | 80.83 | C→B | 69.17 | C→A | 41.67 |
), ArticleFig(id=1228313055239533230, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=表2, caption=
30%满转速下的分类准确率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 标准 | 方法 | 分类准确率/% |
|---|
| A、B→C | A、C→B | B、C→A | 平均值 | A→A |
|---|
| 多源 | MFSAN | 100 | 100 | 99.17 | 99.72 | - |
| MFSANMMD | 85.83 | 96.67 | 89.17 | 90.56 | - |
| MFSANdisc | 86.67 | 97.50 | 84.17 | 89.45 | - |
| 源联合 | DAN | 96.97 | 85.61 | 98.48 | 93.69 | - |
| DDC | 94.70 | 90.91 | 80.30 | 88.64 | - |
| DSAN | 95.83 | 98.33 | 95.83 | 96.66 | - |
| ResNet | 93.33 | 91.67 | 51.67 | 78.89 | - |
| 单源 | DAN | A→C | 75.00 | A→B | 75.76 | B→A | 81.06 | 78.92 | 98.36 |
| B→C | 87.88 | C→B | 69.70 | C→A | 84.09 |
| DDC | A→C | 70.45 | A→B | 68.18 | B→A | 62.88 | 68.69 | 91.12 |
| B→C | 70.45 | C→B | 76.52 | C→A | 63.64 |
| DSAN | A→C | 88.33 | A→B | 80.83 | B→A | 60.83 | 76.67 | 97.89 |
| B→C | 94.17 | C→B | 77.50 | C→A | 58.33 |
| ResNet | A→C | 65.83 | A→B | 64.17 | B→A | 40.83 | 60.42 | 92.25 |
| B→C | 80.83 | C→B | 69.17 | C→A | 41.67 |
), ArticleFig(id=1228313055373750962, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Tab. 3, caption=
Classification accuracy under different batch sizes
, figureFileSmall=null, figureFileBig=null, tableContent=
| 批大小 | 分类准确率/% |
|---|
| MFSAN | DAN | DDC | ResNet | DSAN |
|---|
| 8 | 97.50 | 96.67 | 93.38 | 92.83 | 93.23 |
| 16 | 98.33 | 95.83 | 91.20 | 90.25 | 94.31 |
| 32 | 100 | 96.97 | 94.70 | 93.33 | 95.83 |
| 40 | 96.67 | 88.33 | 86.67 | 80.42 | 88.64 |
), ArticleFig(id=1228313055457637045, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=表3, caption=
不同批大小下的分类准确率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 批大小 | 分类准确率/% |
|---|
| MFSAN | DAN | DDC | ResNet | DSAN |
|---|
| 8 | 97.50 | 96.67 | 93.38 | 92.83 | 93.23 |
| 16 | 98.33 | 95.83 | 91.20 | 90.25 | 94.31 |
| 32 | 100 | 96.97 | 94.70 | 93.33 | 95.83 |
| 40 | 96.67 | 88.33 | 86.67 | 80.42 | 88.64 |
), ArticleFig(id=1228313055562494650, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Tab. 4, caption=
Classification accuracy under different learning rates
, figureFileSmall=null, figureFileBig=null, tableContent=
| 学习率 | 分类准确率/% |
|---|
| MFSAN | DAN | DDC | ResNet | DSAN |
|---|
| 0.1 | 95.68 | 86.67 | 80.83 | 73.56 | 77.56 |
| 0.01 | 96.36 | 96.67 | 94.70 | 77.50 | 80.23 |
| 0.001 | 98.33 | 93.26 | 89.85 | 84.17 | 90.34 |
| 0.0001 | 84.17 | 81.67 | 76.67 | 85.41 | 95.83 |
| 0.00001 | 83.37 | 79.58 | 64.58 | 93.33 | 87.15 |
), ArticleFig(id=1228313055667352255, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=表4, caption=
不同学习率下的分类准确率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 学习率 | 分类准确率/% |
|---|
| MFSAN | DAN | DDC | ResNet | DSAN |
|---|
| 0.1 | 95.68 | 86.67 | 80.83 | 73.56 | 77.56 |
| 0.01 | 96.36 | 96.67 | 94.70 | 77.50 | 80.23 |
| 0.001 | 98.33 | 93.26 | 89.85 | 84.17 | 90.34 |
| 0.0001 | 84.17 | 81.67 | 76.67 | 85.41 | 95.83 |
| 0.00001 | 83.37 | 79.58 | 64.58 | 93.33 | 87.15 |
), ArticleFig(id=1228313055788987074, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=EN, label=Tab. 5, caption=
Classification accuracy at 100% full speed
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 分类准确率/% |
|---|
| A、B→C | A、C→B | B、C→A | 平均值 |
|---|
| MFSAN | 100 | 99.83 | 100 | 99.94 |
| DAN | 94.17 | 96.67 | 82.50 | 91.11 |
| DDC | 70.42 | 95.42 | 60.42 | 75.42 |
| DSAN | 96.25 | 92.92 | 80.83 | 89.33 |
), ArticleFig(id=1228313055881261766, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295806587957493, language=CN, label=表5, caption=
100%满转速下的分类准确率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 分类准确率/% |
|---|
| A、B→C | A、C→B | B、C→A | 平均值 |
|---|
| MFSAN | 100 | 99.83 | 100 | 99.94 |
| DAN | 94.17 | 96.67 | 82.50 | 91.11 |
| DDC | 70.42 | 95.42 | 60.42 | 75.42 |
| DSAN | 96.25 | 92.92 | 80.83 | 89.33 |
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