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1、MechanicalSystemsandSignalProcessing24(2010)1950–1962ContentslistsavailableatScienceDirectMechanicalSystemsandSignalProcessingjournalhomepage:www.elsevier.com/locate/jnlabr/ymsspOperationaltransferpathanalysis:Theory,guidelinesandtirenoiseapplicationa,b,cD.deKlerk,A.Ossipov
2、aDelftUniversityofTechnology,FacultyofMechanics,MaritimeandMaterialEngineering,DepartmentofPrecisionandMicrosystemsEngineering,EngineeringDynamics,Mekelweg2,2628CDDelft,TheNetherlandsbMuller-BBMVASB.V.,Zwolle,TheNetherlands¨cGoodyearTechnicalCenter,L-7750Colmar-Berg,Luxembou
3、rgarticleinfoabstractArticlehistory:Theoperationaltransferpathanalysis(OTPA)methodisthesubjectofresearchinthisReceived12May2010article,whichstartswithadiscussiononit’stheory.HereclearsimilaritieswiththeAccepted16May2010MIMOtechniqueinexperimentalmodalanalysisarefound.Basedon
4、theknowledgeofAvailableonline21May2010MIMO,onefindsthatinputsignalsareallowedtobecoherenttoacertainextend.AsKeywords:coherencecanbelargerinOTPAinpractice,themethodisextendedwiththesingularOperationaltransferpathanalysisvaluedecompositionmethodtoreduceinfluencesofnoise.Theartic
5、leproceedswithaOTPAdiscussiononpointsofattention,orboundaryconditions,inpracticalapplications.AnTirenoiseanalysisontirenoiseisincludedtoillustratethepointsofattentionandthemethodsExperimentaldynamicsstrengthin,forexample,vehicleTPAontires.MIMO&2010ElsevierLtd.Allrightsreserv
6、ed.CrosstalkcancelationCTC1.IntroductionOperationaltransferpathanalysis(OTPA),usingcrosstalkcancelation(CTC)andsingularvaluedecomposition(SVD),isasignalprocessingmethodwhichfindsthelinearizedtransferfunction(TF)matrixbetweenasetofchoseninputandoutputchannelsfromameasurement.T
7、hein-andoutputrelationsaredeterminedsuch,thatthetransferfunctionsarelinearlyindependentwithrespecttoeachother,hencethenameCTC.Theresultingtransferfunctionscanbeusedinatransferpathanalysis(TPA),determiningasource’spropagationofnoiseandtheresultingcontentintheresponsesignal.Th
8、eOTPAusesthesingularvaluedecomposition(SVD)algorithmtofindindependentprincip
