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冷连轧机主传动系统扭转振动分析.docx

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冷连轧机主传动系统扭转振动分析 Introduction: Thecoldrollingmilliscomposedofseveralsectionsincludingthemaindrivesystem,whichplaysasignificantroleintheoveralltechnologicalprocess.Theprimaryaimofthemaindrivesystemistoprovidepower,torque,andspeedtotherollingmillforefficientandreliablesteelproduction.Inthemaindrivesystem,twistingvibrationsareasignificantconcernastheycancauseseveredamagetothemachine'scomponents,reduceoverallproductionoutput,orleadtocatastrophicfailure.Therefore,theanalysisoftwistingvibrationsisessentialtomaintainthesystem'sreliabilityandtoensurehigh-qualitysteelproduction.Thispaperpresentsananalysisofthetwistingvibrationsinthecoldrollingmillmaindrivesystem. MainBody: Themaindrivesystemofthecoldrollingmilliscomposedofseveralcomponentsconsistingofmotors,gearboxes,couplings,bearings,androlls.Thetorqueoscillationfromthemotorcausesatwistinthegearboxandthemillrolls,whichcanleadtotwistingvibrationsforthewholesystem.Thetwistingvibrationscanhaveasignificantimpactontheoverallproductionprocessandcancausefatiguedamagetothemachine'scomponents. Toanalyzethetwistingvibrations,itisessentialtodeterminethecriticaltorsionalfrequenciesofthesystem.Inthisprocess,thenaturalfrequenciesofthesystemneedtobeanalyzed,asthenaturalfrequenciesaretheresonantfrequenciesofthesystematwhichtorsionaloscillationswillbeamplified.Theanalyticalstudyofthesystem'storsionalvibrationstakesintoaccountthestiffnessanddampingofthesystem'scomponents,includingthegears,rotor,andsupportstructure. Thefiniteelementanalysis(FEA)methodwasusedtosimulateandstudythetwistingvibrationsinthemaindrivesystem.Inthissimulation,themaindrivesystem'smodelingwascreatedusingSOLIDWORKSsoftware,andthemodalanalysiswasperformedusingANSYSsoftware.Thestudyconsidereddifferentfactorssuchasthenaturalfrequenciesofthecomponents,themodeshapes,thedynamicresponseofthewholesystem,andtorqueresponse. Additionally,experimentalanalysiswascarriedouttovalidatetheresultsoftheFEAsimulation.Theexperimentalstudyinvolvedtheinstallationofseveralsensorstomeasurethetorq