基于GMA的可控径向油膜轴承控制系统的研究的开题报告-第一文库 | 海量文档资源下载与分享平台

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基于GMA的可控径向油膜轴承控制系统的研究的开题报告Title：ResearchonControlSystemofControllableRadialOilFilmBearingBasedonGMAAbstract：Radialoilfilmbearingisanimportantcomponentofrotatingmachinery.Theperformanceofthebearingdirectlyaffectsthestabilityandreliabilityoftherotatingmachinerysystem.Thecontrollableradialoilfilmbearing,whichcanadjustitsstiffnessanddampingcharacteristicsaccordingtotheworkingcondition,hasreceivedextensiveattentioninrecentyears.Inthispaper,acontrolsystemofcontrollableradialoilfilmbearingbasedonGMA(Gershgorin'scircleMappingArray)isproposed.Thesystemincludesacontrolalgorithmandahardwareplatform.ThecontrolalgorithmisdesignedbasedonthetheoreticalanalysisoftheGMA,whichcanadjustthestiffnessanddampingcharacteristicsofthebearinginrealtime.Thehardwareplatformconsistsofadigitalsignalprocessorandapoweramplifier,whichrealizesthereal-timecontrolofthebearing.Finally,thesimulationandexperimentalverificationofthecontrolsystemareconducted,andtheresultsprovetheeffectivenessandfeasibilityoftheproposedcontrolsystem.Keywords:GMA;controllableradialoilfilmbearing;controlsystem;stiffnessanddampingcharacteristicsIntroduction：Radialoilfilmbearingiswidelyusedinvariousrotatingmachinery,anditsperformancedirectlyaffectsthestabilityandreliabilityoftherotatingmachinerysystem.Inordertomeettherequirementsofhigh-precision,high-speedandheavy-loadrotatingmachinery,thecontrollableradialoilfilmbearing,whichcanadjustitsstiffnessanddampingcharacteristicsaccordingtotheworkingcondition,hasbeendeveloped.Thecontrollableradialoilfilmbearinghasthecharacteristicsofreducingvibrationandnoise,prolongingservicelifeandimprovingtheperformanceoftherotatingmachinery.Therefore,ithasgreatapplicationprospectsinthefieldofrotatingmachinery.Inrecentyears,manyscholarshavestudiedthecontrolsystemofcontrollableradialoilfilmbearing.SomeofthemusePIDcontrolalgorithmtoadjustthestiffnessanddampingcharacteristicsofthebearing.However,thePIDcontrolalgorithmisnotsuitableforthecontrolofnonlinearandtime-varyingsystems.Inordertoovercomethesho