轉(zhuǎn)子磁體永磁偏置混合磁軸承的研究.pdf

1、分類號：丫H伊；密級：y1972210單位代碼；p婦2學號：≥冊2lJ對7◎√▲東7，孳碩士學位論文8handonFUni，d，聲，ty_aster。sThe8iB論文題目：托x磁錸走張編顯隰套磁紺奪厶鈞兔作者姓名壟圃莖專業(yè)蟲扭互虹墨霉量蓑粱嫠妻盜當塾劍叢魚專業(yè)技術(shù)職務銥彳吒琵j國7磊是口乏塒年牛月zo日山東大學碩士學位論文ABSTRACTComparedwithconventionalmechanicalbearings，themag

2、neticbearingshavegreatadvantagesTeducethelossesfurthermore，thepermanentmagnetbiasedhybridtypemagneticbearingshavebeenwidelyattachedimportancetoUndertheaegisofimportantprojectpresidedbyBeihangUniversity，aimingatthehybridm

3、agneticbearingwhichisusedtosatelliteattitudecontrol／energystorageflywheelwithangularmomentof15Nmsatspeedof25000rpm，theprofoundanalysisandstudyonahybrid—typemagneticbearingwithpermanentmagnetinrotoriscompletedinthisthesis

4、Themaincontentsareasfollows：①TheconfigurationandoperationprincipleofthenewmagneticbearingareintroducedfirstlyBasedonthis，theequivalentmagneticcircuitmodelsareputforward，andthemodelsareanalyzedandcalculatedbysuperposition

5、principleTheformulasofcarryingforcesofthemagneticbearingarededuced，andthenthecouplingcharacterandcurrentstiffnessanddisplacementstiffnessofthemagneticbearingarestudiedandanalyzed②The2DFEMand3DFEManalysesofthemagneticbear

6、ingareanalyzedandcalculatedTohencecalculationprecision，theleakageshouldbeconsidered，andtheleakagecoefficientsofpermanentfieldandexcitedonearecalculatedseparatelyby2DFEMofthemagneticbearingThe3DFEMofthemagneticbearingisst

7、udiedtovalidatethevalidityofcalculationofmagneticcircuits，whichanalyzethedistributionandactionofmagneticfieldsunderdifferentconditionsAndthenthedistributionsofradialairgapfluxdensityandtheforcecurrentlinearcontrolcharact

8、eristicsaregivenOnthebasisofanalysiswithFEM，thelossesandtheforcecurrentlinearcontrolcharacteristicsofdifferentmagneticbearingsarecomparedandanalyzed③BasedonthemagneticcircuitmodelsandFEManalyses，theanalysisanddesignsoftw