New procedure for gear fault detection and diagnosis using instantaneous angular speed
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- New procedure for gear fault detection and diagnosis using instantaneous angular speed
- 发表刊物：
- Mechanical Systems and Signal Processing
- 摘要：
- Besidestheextremecomplexityofgeardynamics,thefaultdiagnosisresultsintermsof
vibration signalaresometimeseasilymisledandevendistortedbytheinterferenceof
transmission channelorothercomponentslikebearings,bars.Recently,theresearchfield
of InstantaneousAngularSpeed(IAS)hasattractedsignificantattentionsduetoitsown
advantagesoverconventionalvibrationanalysis.OnthebasisofIASsignal'sadvantages,
this paperpresentsanewfeatureextractionmethodbycombiningtheEmpiricalMode
Decomposition(EMD)andAutocorrelationLocalCepstrum(ALC)forfaultdiagnosisof
sophisticatedmultistagegearbox.Firstly,asapre-processingstep,signalreconstructionis
employedtoaddresstheoversampledissuecausedbythehighresolutionoftheangular
sensor andthetestspeed.ThentheadaptiveEMDisusedtoacquireanumberofIntrinsic
Mode Functions(IMFs).Nevertheless,notalltheIMFsareneededforthefurtheranalysis
since differentIMFshavedifferentsensitivitiestofault.Hence,thecosinesimilaritymetric
is introducedtoselectthemostsensitiveIMF.Eventhough,thesensitiveIMFisstillin-
sufficientforthegearfaultdiagnosisduetotheweaknessofthefaultcomponentrelated
to thegearfault.Therefore,asthefinalstep,ALCisusedforthepurposeofsignalde-
noisingandfeatureextraction.Theeffectivenessandrobustnessofthenewapproachhas
been validatedexperimentallyonthebasisoftwogeartestrigswithgearsunderdifferent
working conditions.Diagnosisresultsshowthatthenewapproachiscapableofeffectively
handlingthegearfaultdiagnosisi.e.,thehighlightedquefrencyanditsrahmonicscor-
responding totherotaryperiodanditsmultiplearedisplayedclearlyinthecepstrum
recordoftheproposedmethod.
- 合写作者：
- Li Bing， ZhangXining， Wu Jili
- 卷号：
- （85（2017）
- 页面范围：
- 415-428
- 是否译文：
- 否
- 发表时间：
- 2016-08-26