高温超导磁悬浮系统导向力的分析

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1、西南交通大学硕士研究生学位论文第lI页AbstractSincethehi曲．temperaturesuperconductingmaterialwasdiscovered，peoplehaveinvestedalotofenergytoitsexplorationandresearch，foundthattheceramicmaterialpreparedbyhigh-temperaturesuperconductorscallbesuspendedinastablemagneticfieldestablishedbypermanentmagnets，andhasastrongm

2、agneticfluxPinningability,comparedwithtraditionalphysicalsuspension，ithaslowpowerconsumption，withoutanycontrol，environmentalpollutionandotherproperties，makingitbroadprospectsinpracticalapplications．Inthehigh．temperaturesuperconductingmagneticlevitationsystem，theguidingforceplayanimportantrolei

3、nrelationtothesuspensionsystemperformance．Thisarticleisbasedontheguidanceforceofthesuspensionsystemperformancestudies．Inthispaper,themethodsofexperimentalhi曲一temperaturesuperconductingmagneticlevitationsystemlateralstability．combinedwiththetheoryandpreviousexperienceofthehi曲·temperaturesuperco

4、nductingmagneticlevitationsystemstability．Intheabsenceofexternaldisturbances，theresultsshowthatinField—cooling：thesystemtwiceaguidingforcehysteresisloopisnotthesamedegree，thesecondcircularareaenclosedbyhysteresisloopevensmaller,lesshysteresisloss；Withthesuspensionheightincreases，moreandmorewea

5、khysteresis；ZerOfieldcoolingresultsshowthat：guidanceforceofthetestcurveandfieldcoolingcurvesistheoppositesituation，thatistosay：guidingforceofzerofieldcoolingisnegative，butinthefieldcoolingtheforceispositive；whenguidingforceofzerofieldcoolingispositive，inthefieldcoolingtheforceisnegative·theret

6、urnoftheguidingforceisthelargerthanprocess·orientedforce；suspensionheightincreaseloopareaisreduced．Disturbanceinthetime-varyingmagneticfield，thefieldcoolingstudyresultsshowthatthesystemthelargestguidingforceappearitmovementtothesuperconductingmagnetandcoilatthejunctionedge，thegreatertheACmagne

7、ticfieldamplitudethegreatertheloss，丹equencyhaslittleeffectontheguidanceforce．Finally,thereisnoconstraint，theresultsshowthat：permanentmagnetbeingboundguidanceforceintheabsenceofthetest．orientedissmallerthanthebindingforceoftheguidingforc