Title of article
CharacteristicanalysisofrotordynamicsandexperimentsofactivemagneticbearingforHTR-10GTOriginalResearchArticle
Author/Authors
YangGuojun، نويسنده , , XuYang، نويسنده , , ShiZhengang، نويسنده , , GuHuidong، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
9
From page
1363
To page
1371
Abstract
A10MWhigh-temperaturegas-cooledreactor(HTR-10)wasconstructedbytheInstituteofNuclearandNewEnergyTechnology(INET)atTsinghuaUniversityofChina.Theheliumturbineandgeneratorsystemof10MWhigh-temperaturegas-cooledreactor(HTR-10GT)isthesecondphasefortheHTR-10project.Itistosetupadirectheliumcycletoreplacethecurrentsteamcycle.Theactivemagneticbearing(AMB)insteadofordinarymechanicalbearingwaschosentosupporttherotorintheHTR-10GT.Thisrotorisverticallymountedtoholdtheturbinemachine,compressorsandthepowergeneratortogether.Therotorʹslengthis7m,itsweightisabout1500kgandtherotatingspeedis15,000rpm.Thestructureoftherotorissocomplicatedthatdynamicanalysisoftherotorbecomesdifficult.Oneofthechallengingproblemsistoexceednaturalfrequencieswithenoughstabilityandsafetyduringreactorstartup,powerchangeandshutdown.Thedynamicanalysisoftherotoristhebaseforthedesignofcontrolsystem.Itisimportantfortherotortoexceedcriticalspeeds.Somekindsofsoftwaresandmethods,suchasMSC.Marc,Ansys,andthetransfermatrixmethod(TMM),arecomparedtofullyanalyzerotordynamicscharacteristicinthispaper.ThemodalanalysishasbeendonefortheHTR-10GTrotor.MSC.Marcwasfinallyselectedtoanalyzethevibrationmodeandthenaturalfrequencyoftherotor.TheeffectsofAMBstiffnessonthecriticalspeedsoftherotorwerestudied.ThedesigncharacteristicsoftheAMBcontrolsystemfortheHTR-10GTwerestudiedandtherelatedexperimenttoexceednaturalfrequencieswasintroduced.Theexperimentalresultsdemonstratethesystemfunctionsandvalidatethecontrolscheme,whichwillbeusedintheHTR-10GTproject.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2007
Journal title
Nuclear Engineering and Design Eslah
Record number
941396
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