机械设备运行可靠性评估的发展与思考-何正嘉

50220141JOURNALOFMECHANICALENGINEERINGVol.50No.2Jan.2014DOI10.3901/JME.2014.02.171*(710049)ISO3945TH17DevelopmentsandThoughtsonOperationalReliabilityAssessmentofMechanicalEquipmentHEZhengjiaCAOHongruiZIYanyangLIBing(StateKeyLaboratoryforManufacturingSystemsEngineering,Xi’anJiaotongUniversity,Xi’an710049)AbstractOperationalreliabilityassessmentofthespecifiedmechanicalequipmentisanindividualproblem.Theaveragereliability,obtainedbyusingprobabilitystatisticsmethodwithlargesampledata,cannotfulfilrequirementsofoperatingreliabilityevaluationforindividualequipment.Theemergedproblemsaresummarizedwhenthetraditionalreliabilitytheoryisappliedtooperationalreliabilityassessmentofmechanicalequipment,andcorrespondingimprovedmethodsarereviewed.Thetheoreticalbasisandtechnicalconnotationofoperationalreliabilityassessmentforindividualequipment,whichisbasedondynamicmodelling,faultmechanismanalysis,signalprocessingandfaultfeatureextraction,areexpounded.Then,anewconceptofoperationalreliabilityisgivenandthedegreeofoperationalreliabilityisdefined.Anoperationalreliabilityassessmentapproachbasedonrunningconditioninformationofmechanicalequipmentisproposed.Mappingmodelsbetweenrunningconditionandoperationalreliabilityisestablishedformechanicalequipmenttocalculatethedegreeofoperationalreliability.BasedonISO3945,absolutevibrationvalueswhichareusedtoevaluaterunningconditionofrotatingmachineryaretransformedtoreliabilitydegree.Theproposedmethodisappliedtoaturbogeneratorsetwithbearingbushloosenessbefore/afterrepair,androllingbearingswhichdegradefromnormaltofailurestateundercontinuousrunningcondition.Goodresultsareachieved,whichvalidatethemethod.Theunsolvedproblemsforoperationalreliabilityassessmentofmechanicalequipmentarebroughtup,whichmayprovidereferenceforthefurtherresearch.Keywordsmechanicalequipmentfaultmechanismfeatureextractionoperationalreliabilitydegreeofoperationalreliability0**(51035007)(20110201130001)(9732011CB706805)2013030720130731502172[1]1[2]2006(2006-2020)[3]2010[4]2011[5]11.1[6]2000O’CONNOR[7]2009ZIO[8][9](1)——(2)(3)(4)(5)201411731.22010BALAKRISHNAN[10]Kaplan-MeierHUANG[11]MA[12]2011RAJESH[13]2006[14]Bayes2010XING[15]2011[16]2005PARK[17]2009GEBRAEEL[18]Bernstein2005[19]2006[20]2010YU[21]2011LIU[22]LogisticWANG[23]2012PENG[24][25]2009ZIO[8]2007[26]2008[27]2009XU[28]CHING[29]2011MA[30]MEJRI[31]5021741999CHINNAM[32]2010TIAN[33]SHEN[34]Kaplan-MeierIICARR[35]2011WIDODO[36]K-MZHOU[37]MonteCarloCAESARENDRA[38]LogisticFENG[39]0HzFONG[40]MA[41]JIANG[42][43-53]Logistic[54-57]22.1()2014117511()()GB/T20921-20070()exp()dtRthtt(1)()httt()Rt()Rtt[0,1]2.222()()()[58-65][66][67-74][75-82][83-85][86-89][90-92][93-95]502176[96]33[0,1]2.3[–1,1][0,1][0,1]()[0,1][1,2]1[0,1]2.3.1[97]()x/2x2max()()1xxxR(2)()x()xt()x2x()xt()[0,1]xR,,max()()xyxyxyCRC(3)xy,()xyC()xt()ytxy()xt()yt,()[0,1]xyRC2.3.222()(())maxmax()()()xyxyxyxySfRffSfSf(4)xy,()xySf()xt()yt()xSf()ySf()xt()yt2,()xyf()xt()yt2,()[0,1]xyRf2.3.31()exp(()),0xxxxKaRKbKaKab(5)xK()xtab()[0,1]xRK201411772.3.4J,,1001xyxyRJJJ(6),xyJ()xt()ytJ,1()()112()()NyxxykxySkSkJNSkSk(7)()xSk()ySk()xt()ytN,[0,1]xyRJ2.3.5u11122121()10uauaRuauaaaua(8)1a2a[0,1]Ru2.3.6dB12(9)0lglimlgBNd(9)N()1BBRdd(10)2.3.7[98-99]2,,21logllliliieEE(11)2l,liEli2,1=1lliiE(12)()1Ree(12)()[0,1]Re[0,1]3ISO39453.12rms01=dTvvttTISO3945(75kW)11rmsv/(mm/s)0.280.450.711.121.82.84.57.111.218284571502178(8)rmsv28mm/sa1=0.28mm/sa2=28mm/s10.280.28()10.2828280.28028uuRuuu221.000.990.980.970.950.910.850.750.610.360000.910.750.850.613.23.2.1[100-101]3(l=3)23=83,iE(11)83,83,1=logiiieEE1,2,,8i8(12)3.2.250MWMDS-24#(50μm)3000r/min63.2μm3000r/min6MW74μm16MW104μm44#01000Hz38125Hz8514(11)4#0.740.264#4#0.11mm0.25mm0.05mm30mm0.04mm25mm4#0.05mm4#0.25mm4#68751244#0.330.6724#44#201411795364#733.3(FuzzysupportvectordatadescriptionFSVDD)[102]——D3.3.1(SupportvectordatadescriptionSVDD)TAX[103]1999——FSVDD[102]110max,iidiiiiiidittDtDttt(13)iiiitidt0i.maxD(8)1=0a2max=aDmaxmaxmax10iiiiDDDDRDDD(14)3.3.2T20-601500r/min15kN27kNJB/T50013-2000[104]LC0401YE727610kHz5min3276888(13)D9D9860min12260min(max4D)(14)10105021809104(1)——(2)(3)(4)(5)[1].[J].201046(14)167-188.ZHANGYimin.Connotationanddevelopmentofmechanicalreliability-baseddesign[J].JournalofMechanicalEngineering201046(14)167-188.[2].[J].2009(8)35-37.JIAYazhouYANGZhaojun.ThestatusquoandtechnologydevelopmentstrategyofCNCmachinetoolsreliabilityathomeandabroad[J].ManufactureInformationEngineeringofChina2009(8)35-37.[3].[J].201231()384-387.HEZhengjiaXIONGShiboCHENJin.Operationreliabilityassessmentbasedonconditionmonitoringinformationformechanicaleaquipment[J].JournalofVibrationandShock201231(Suppl.)384-387.[4].132[EB/OL].[2013-01-05][EB/OL].[2013-01-05].[5].[EB/O