Article(id=1228805367233179749, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228805359561802007, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2025.06.020, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1706198400000, receivedDateStr=2024-01-26, revisedDate=1716998400000, revisedDateStr=2024-05-30, acceptedDate=null, acceptedDateStr=null, onlineDate=1770899629648, onlineDateStr=2026-02-12, pubDate=1749484800000, pubDateStr=2025-06-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770899629648, onlineIssueDateStr=2026-02-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770899629648, creator=13701087609, updateTime=1770899629648, 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=1317, endPage=1325, ext={EN=ArticleExt(id=1228805367493226626, articleId=1228805367233179749, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=Period-refined maximum correlated kurtosis deconvolution method for weak fault feature extraction in rolling bearings, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Maximum correlated kurtosis deconvolution (MCKD), which uses correlated kurtosis as its deconvolution target, effectively extracts both periodic and impulsive features of mechanical faults. This is a widely used method for solving rolling bearing fault diagnosis problems. However, the performance of MCKD heavily relies on accurate prior fault period information. Existing solution often only focus on period estimation during the iterative process, making them ineffective under low signal-to-noise ration (SNR) conditions. To address this limitation, a period-refined maximum corrlated kurtosis deconvolution (PRMCKD) method is proposed. This approach refines the iteration period using time synchronous averaging (TSA) for reconolution, enabling accurate extraction of subtle bearing fault features even in strong noise environments. The method operates by first utilizing a filter bank for preliminary localization of the resonance frequency band, thus defining the correct deconvolution direction. With correlated kurtosis as the objective function, and leveraging the period information refined by TSA technology, the optimal filter coefficients are iteratively solved. Rolling bearing fault localization is achieved through the fault features present in the filtered signal. Simulation and experimental analysis results demonstrate that the proposed PRMCKD method offers significant advantages over traditional deconvolution methods for extracting weak fault features in rolling bearings.
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最大相关峭度解卷积(maximum correlated kurtosis deconvolution, MCKD)以相关峭度作为解卷目标,能有效提取兼具周期性和冲击性的机械故障特征,是当前解决滚动轴承故障诊断问题的常用手段。然而,MCKD性能的发挥严重依赖先验故障周期信息,而且现有的解决方案也只关注于迭代周期的估计,难以在低信噪比条件下奏效。为此,提出了一种周期精炼的最大相关峭度解卷积(period-refined MCKD, PRMCKD)方法,借助时域同步平均(time synchronous averaging, TSA)方法进行迭代周期的精炼以用于解卷,能在强噪声情况下准确提取微弱的轴承故障特征。该方法利用滤波器组进行共振频带的初步定位,以明确解卷方向;以相关峭度为目标函数,基于TSA技术精炼出的周期信息,迭代求解最优滤波器系数;通过滤波信号中的故障特征实现滚动轴承故障定位。仿真与试验分析结果表明,所提PRMCKD方法相比传统解卷积方法在滚动轴承微弱故障特征提取方面更具优势。
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2.石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室,河北 石家庄 050043)])], figs=[ArticleFig(id=1228805373663048270, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 1, caption=
Time-domain waveform of simulated signal with outer ring fault of rolling bearing, figureFileSmall=6sO4aWM2y7q+RaO7ctdS1Q==, figureFileBig=q1wCJJ/tSoKDysY601EFNg==, tableContent=null), ArticleFig(id=1228805373738545746, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图1, caption=
滚动轴承外圈故障仿真信号的时域波形, figureFileSmall=6sO4aWM2y7q+RaO7ctdS1Q==, figureFileBig=q1wCJJ/tSoKDysY601EFNg==, tableContent=null), ArticleFig(id=1228805373944066649, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 2, caption=
IMCKD iterative processes based on two initialization strategies, figureFileSmall=SyvcZ+j2Q1eCiHFwTKU/4A==, figureFileBig=z1j2VKw3EIww16zwToihBg==, tableContent=null), ArticleFig(id=1228805374015369820, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图2, caption=
基于两种初始化策略的IMCKD迭代过程, figureFileSmall=SyvcZ+j2Q1eCiHFwTKU/4A==, figureFileBig=z1j2VKw3EIww16zwToihBg==, tableContent=null), ArticleFig(id=1228805374090867295, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 3, caption=
Variation of period estimation error with signal-to-noise ratio for two methods, figureFileSmall=wfIchuuru3qEXOSVU7kO5A==, figureFileBig=/BIfa9vzeQ8YhqRO1/ZK+A==, tableContent=null), ArticleFig(id=1228805374178947682, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图3, caption=
两种方法的周期估计误差随信噪比的变化, figureFileSmall=wfIchuuru3qEXOSVU7kO5A==, figureFileBig=/BIfa9vzeQ8YhqRO1/ZK+A==, tableContent=null), ArticleFig(id=1228805374254445158, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 4, caption=
Flow chart of PRMCKD method, figureFileSmall=QVqd/sPdqfx//Ee1SU7Ajw==, figureFileBig=DkRfT5mvj1rL8Nn74y1hrw==, tableContent=null), ArticleFig(id=1228805374405440107, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图4, caption=
PRMCKD方法流程图, figureFileSmall=QVqd/sPdqfx//Ee1SU7Ajw==, figureFileBig=DkRfT5mvj1rL8Nn74y1hrw==, tableContent=null), ArticleFig(id=1228805374501909103, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 5, caption=
Time-domain waveform and its envelope spectrum of simulated signal 1, figureFileSmall=M8l2hCPrtYYKZHYq5kKArg==, figureFileBig=KebikJM+LhAQpDY9rmMPUw==, tableContent=null), ArticleFig(id=1228805374585795188, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图5, caption=
仿真信号1的时域波形及其包络谱, figureFileSmall=M8l2hCPrtYYKZHYq5kKArg==, figureFileBig=KebikJM+LhAQpDY9rmMPUw==, tableContent=null), ArticleFig(id=1228805374669681270, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 6, caption=
Time-domain waveform and its envelope spectrum of processed results of simulated signal 1, figureFileSmall=lL5ZH7kyn2ARWKVH0xk67w==, figureFileBig=4SlTSv7A3FT11+lfveKzdQ==, tableContent=null), ArticleFig(id=1228805374745178746, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图6, caption=
仿真信号1处理结果的时域波形及其包络谱, figureFileSmall=lL5ZH7kyn2ARWKVH0xk67w==, figureFileBig=4SlTSv7A3FT11+lfveKzdQ==, tableContent=null), ArticleFig(id=1228805374841647742, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 7, caption=
Time-domain waveform and its envelope spectrum of simulated signal 2, figureFileSmall=O3txLpmBMzWgFMksTSFTmw==, figureFileBig=LpTu47oVO9xP8hdlWlXZUA==, tableContent=null), ArticleFig(id=1228805374921339518, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图7, caption=
仿真信号2的时域波形及其包络谱, figureFileSmall=O3txLpmBMzWgFMksTSFTmw==, figureFileBig=LpTu47oVO9xP8hdlWlXZUA==, tableContent=null), ArticleFig(id=1228805375013614210, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 8, caption=
Time-domain waveform and its envelope spectrum of processed results of simulated signal 2, figureFileSmall=Arrcwa1h73h/Mr3vUAPZzQ==, figureFileBig=7kDA/JKQIxMGL7XNkeHFHQ==, tableContent=null), ArticleFig(id=1228805375118471812, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图8, caption=
仿真信号2处理结果的时域波形及其包络谱, figureFileSmall=Arrcwa1h73h/Mr3vUAPZzQ==, figureFileBig=7kDA/JKQIxMGL7XNkeHFHQ==, tableContent=null), ArticleFig(id=1228805375202357900, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 9, caption=
Period estimates and its errors of IMCKD and PRMCKD during iteration, figureFileSmall=CKgDLK5HvASiIxdjB30Usg==, figureFileBig=qC3dvjtazQckE/VkbWjRKw==, tableContent=null), ArticleFig(id=1228805375290438285, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图9, caption=
迭代过程中IMCKD和PRMCKD的周期估计值及其误差, figureFileSmall=CKgDLK5HvASiIxdjB30Usg==, figureFileBig=qC3dvjtazQckE/VkbWjRKw==, tableContent=null), ArticleFig(id=1228805375412073103, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 10, caption=
Test rig of wind turbine rolling bearing, figureFileSmall=y08qjKEFqMYj2etyR6Kj+Q==, figureFileBig=BTJTmVMzGJjBMuPd6sCLhg==, tableContent=null), ArticleFig(id=1228805375525319316, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图10, caption=
风力发电机滚动轴承试验台, figureFileSmall=y08qjKEFqMYj2etyR6Kj+Q==, figureFileBig=BTJTmVMzGJjBMuPd6sCLhg==, tableContent=null), ArticleFig(id=1228805375621788312, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 11, caption=
Rolling bearing with cracked outer ring fault, figureFileSmall=UswbcPYVAzaJ/QdE4359Dw==, figureFileBig=AYMmzeC1C8q+5ZOFShxR6Q==, tableContent=null), ArticleFig(id=1228805375726645915, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图11, caption=
外圈裂纹故障轴承, figureFileSmall=UswbcPYVAzaJ/QdE4359Dw==, figureFileBig=AYMmzeC1C8q+5ZOFShxR6Q==, tableContent=null), ArticleFig(id=1228805375865057950, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 12, caption=
Time-domain waveform and its envelope spectrum of outer ring fault test signal, figureFileSmall=7v4zIcpVsPkEtEvyT9obHA==, figureFileBig=J8lapMjfwzktD60M0gP9wA==, tableContent=null), ArticleFig(id=1228805375974109860, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图12, caption=
外圈故障测试信号的时域波形及其包络谱, figureFileSmall=7v4zIcpVsPkEtEvyT9obHA==, figureFileBig=J8lapMjfwzktD60M0gP9wA==, tableContent=null), ArticleFig(id=1228805376078967464, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 13, caption=
Time-domain waveform and its envelope spectrum of processed results of outer ring fault test signal, figureFileSmall=HmjncnLXWqz5fuKKpmhemQ==, figureFileBig=UEYRPHOC7OjaD+fg7BRl2w==, tableContent=null), ArticleFig(id=1228805376179630767, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图13, caption=
外圈故障测试信号处理结果的时域波形及其包络谱, figureFileSmall=HmjncnLXWqz5fuKKpmhemQ==, figureFileBig=UEYRPHOC7OjaD+fg7BRl2w==, tableContent=null), ArticleFig(id=1228805376284488372, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 14, caption=
Rolling bearing with inner ring wear fault, figureFileSmall=cSf2yzFIrCDbgFIEz3x+/Q==, figureFileBig=vpRxiwsLq6P8lIJmuHpu3Q==, tableContent=null), ArticleFig(id=1228805376359985848, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图14, caption=
内圈磨损故障轴承, figureFileSmall=cSf2yzFIrCDbgFIEz3x+/Q==, figureFileBig=vpRxiwsLq6P8lIJmuHpu3Q==, tableContent=null), ArticleFig(id=1228805376435483324, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 15, caption=
Time-domain waveform and its envelope spectrum of inner ring fault test signal, figureFileSmall=hQvfUhDEYTTBuCTN6hR3EA==, figureFileBig=bhuufka+kJiPfy5jGdbrbg==, tableContent=null), ArticleFig(id=1228805376515175105, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图15, caption=
内圈故障测试信号的时域波形及其包络谱, figureFileSmall=hQvfUhDEYTTBuCTN6hR3EA==, figureFileBig=bhuufka+kJiPfy5jGdbrbg==, tableContent=null), ArticleFig(id=1228805376594866885, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Fig. 16, caption=
Time-domain waveform and its envelope spectrum of processed results of inner ring fault test signal, figureFileSmall=H554GJ/cam2qL3mvPvCPEA==, figureFileBig=EKcbX9gkc2+V+MZEz+otHA==, tableContent=null), ArticleFig(id=1228805376678752970, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=图16, caption=
内圈故障测试信号处理结果的时域波形及其包络谱, figureFileSmall=H554GJ/cam2qL3mvPvCPEA==, figureFileBig=EKcbX9gkc2+V+MZEz+otHA==, tableContent=null), ArticleFig(id=1228805376779416270, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Tab.1, caption=
Simulated signal parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 冲击信号成分 | 谐波信号成分 |
|---|
| 冲击类型 | 幅值A、B | 时间间隔T/s | 共振频率f/Hz | 谐波编号 | 幅值C | 共振频率f/Hz | 初相位φ/rad |
| 故障冲击 | 1 | 1/29 | 2000 | 谐波1 | 0.025 | 7 | π/6 |
| 随机冲击 | 3 | — | 5100 | 谐波2 | 0.025 | 14 | −π/3 |
), ArticleFig(id=1228805376884273874, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=表1, caption=
仿真信号参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 冲击信号成分 | 谐波信号成分 |
|---|
| 冲击类型 | 幅值A、B | 时间间隔T/s | 共振频率f/Hz | 谐波编号 | 幅值C | 共振频率f/Hz | 初相位φ/rad |
| 故障冲击 | 1 | 1/29 | 2000 | 谐波1 | 0.025 | 7 | π/6 |
| 随机冲击 | 3 | — | 5100 | 谐波2 | 0.025 | 14 | −π/3 |
), ArticleFig(id=1228805377031074518, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Tab.2, caption=
Period-refined algorithm flow
, figureFileSmall=null, figureFileBig=null, tableContent=
| 输入为信号x,信号长度为N,初始化j=1 |
|---|
步骤1:令时间长度τi = j,对信号x进行时域同步平均处理,得到结果yj; 步骤2:计算yj的基尼指标GI(yj),令j=j+1; 步骤3:重复步骤1和2,直至,获得基尼指标集合GI_set={GI(y1),GI(y2),⋯,GI(yN/2)}; 步骤4:从基尼指标集合中找出最大的基尼指标值,将其对应的时间长度作为故障信号周期的估计:。 |
), ArticleFig(id=1228805377131737819, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=表2, caption=
周期精炼算法流程
, figureFileSmall=null, figureFileBig=null, tableContent=
| 输入为信号x,信号长度为N,初始化j=1 |
|---|
步骤1:令时间长度τi = j,对信号x进行时域同步平均处理,得到结果yj; 步骤2:计算yj的基尼指标GI(yj),令j=j+1; 步骤3:重复步骤1和2,直至,获得基尼指标集合GI_set={GI(y1),GI(y2),⋯,GI(yN/2)}; 步骤4:从基尼指标集合中找出最大的基尼指标值,将其对应的时间长度作为故障信号周期的估计:。 |
), ArticleFig(id=1228805377228206816, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=EN, label=Tab.3, caption=
Fault characteristic frequencies of each component of rolling bearing
, figureFileSmall=null, figureFileBig=null, tableContent=
| 部件 | 故障特征频率/Hz |
|---|
| 内圈 | 5.41fr |
| 外圈 | 3.59fr |
| 保持架 | 4.71fr |
| 滚动体 | 0.4fr |
), ArticleFig(id=1228805377299509986, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805367233179749, language=CN, label=表3, caption=
滚动轴承各部件故障特征频率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 部件 | 故障特征频率/Hz |
|---|
| 内圈 | 5.41fr |
| 外圈 | 3.59fr |
| 保持架 | 4.71fr |
| 滚动体 | 0.4fr |
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