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1、高温超导磁悬浮轴承中英文资料外文翻译文献REVIEWONINTERNATIONALRESEARCHSTATEONHIGHTEMPERATUREACTIVEMAGNETICBEARINGRadialactivemagneticbearing(AMB)isatypicalsysteminmagneticsuspensionfield.Theactivemagneticbearingcansupportarotorwithoutcontactbyusingelectromagneticforce.Withtheadvantageofunlubricated,littleoilcontaminat
2、ed,longlife-spanandtheadaptabilityofvariousenvironment,AMBiswidelyused.SotheresearchonAMBismoreandmorefurther.Itisreasonabletodesignthestructureofactivemagneticbearingproperlyfortheimprovementofitsperformance.BasedonfiniteelementanalysissoftwareCOMSOLMultiphysics,thesimulationofAMBisstudiedwhileth
3、esuspendingforceofAMBiscalculated.First,webuiltupadynamicparametermodel,sowecananalyzethemagneticfielddistributionandmagneticforceatanarbitrarysize.Thenwediscussedsomeelementwhichaffectmagneticfieldsuchascoilcurrent,airgap,polewidthandrotorbiasundertwoworkingmode.ThentheoptimizationprocessofAMBmod
4、elispresentedonthebasisofoptimizationsoftwareiSIGHTtogetherwithCOMSOL,duringwhichtheAMBmodeliscalledautomaticallybyiSIGHT.WeusedsequentialquadraticprogrammingmethodandtheresultshowsthatthecombinationofCOMSOLMultiphysicsandiSIGHTsoftwareisaconvenientandeffectivemethodforthesimulationandoptimization
5、ofAMBsystem.Atlast,weusedPIDcontrollertorealizetheclose-loopcontrolonsingledegreeoffreedomAMBsystem,andanalyzetheperformanceofPIDcontrollerwiththesimulationresultonSimulink.Throughtheresearchabove,wefinishthedesignofthewholeactivemagneticbearingsystem.Theresearchresultprovidesafeasiblemethodforthe
6、analysisandoptimizationofAMBsystem,whichwillbeusefulfortheengineeringapplication.Inthepastfewyears,theaviationindustryhasbeengrowingcontinuously,butthemarketisverycompetitiveisalwaysnecessary.Hightemperatureactivemagneticbearingholdgreatpromiseforimprovingjetturbineengine,andthusreducingmaintenanc
7、ecostandkeroseneconsumption.Inthatgoal,lotsofresearchhasbeenperformedabouthightemperatureactivemagneticbearinganditscomponents(likesoftmagneticmaterial,insulationcoils···).Thisarticlepresentsthedevelopmentofresea
