高溫超導(dǎo)永磁懸浮系統(tǒng)豎直方向振動(dòng)特性分析.pdf

1、西南交通大學(xué)碩士學(xué)位論文高溫超導(dǎo)永磁懸浮系統(tǒng)豎直方向振動(dòng)特性分析姓名：張亞莉申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：電工理論與新技術(shù)指導(dǎo)教師：趙勇20060401西南交通大學(xué)碩士研究生學(xué)位論文第ii頁(yè)AbstractInthisthesis，thedynamiccharactcristicsofapemanent加agmetwithal∞dontopofil(PML)freelevitatingabovealli吐temperaturesupercon

2、ductor(HTS)levitatedsystem(rrSPML)were蚰ldiedAdvnamicsequationsb踮edontheNewton’slawsw蹈establishedtodepictthe“brationOftllefrcelevitatingHTSorPMLAmodelbasedon也eHikihm—Moonmodelwasbuilttodescribethelevitationforcewithstron窟

3、fluxpi衄iIlgTheparamcterSofthemodclwithstrongnuxpiIlninghavebeencon丘nnedbycompafingtheexperimentresultsandthesimulationrcsunsSomecnlcialpammete墻inthedynamicequationhavebeenconsideredbasedOnUlcrelationofthelevitatedforcean

4、dthcrclativevelocitvatwhichtllchi窖lltemperaturesupef∞nductofapproac：hesormovesawayfmmthcpe珊姐entma辨etThecharactefisticsofthcHTS—PMLlevi詛tionsystemwasinvestigatedbymemodelofmedVnamicsOfmal皿etic1cvitati∞compOsedofthcmodelwi

5、thstfongnuxpiIIlling孤dthedyllamicequationT1lecfiticalc0UidingweightofthePML柚dmecriticalcollidiIIgamDlitudeof也eexte】malforcc舡ecalculatedTheI鏹ultsshdw：1)、WithdiffercmcxtemalosdllationfieldorosciHationfbrcedi如呦tosciⅡationla

6、wscaⅡbc西vcnThatistlleoscmationmayasingleperiodsoscillation、twoperiodsoscillation、thfeeperjOdsosdllationoffourperiOdsoscillationsOastOchaosoⅡtlledi趕erentc∞dition2)、nerelationsllipbe吶eentllccriticalcolliding甜nplitudes，Pall

7、d仃equendes，f，ofthccxtcmalforcecollldbesumm缸izcdbythefollowiIlglaw：P=胛Underthes鋤einitialconditionswithtlleincrea∞ofthemassofthePMktllecriti∞lconidingcxtemalforccforthccomsionwjllaugmentAtf5Hz’thecriticalcollidin旦exte瑚ltbf

8、ceundena：kesanapproximatelylincarincrcase3)、withtheiIlcrcascoftlleinitiallevitati伽height，thcwciglltwhichtllesVstemisablet0levitatcin口e髂esWimthepresumption0fnOcollision，the“ti∞lconidingmassofthePMListod黜勰ewith也ein臼％∞of也ci

9、Ilitial1ev“atiOnheigllt4)、T1lejumpingmlesofthecIlnresoftlIccritj∞lcollidilIgmassofthePMLandttlecollidingminimaltime(m鶴svefsustilne)如dtlIoseofthccufvcsofthecriticalcolliding鋤plitIIdeoftllcextcmalforce撲dthem懿softhePML(forc

10、eversusmas曲aresimilaLTocndtllethesis，Abricfintrodudiont0theindustrialapplicali∞ofthemodclofthedynamicsofmagneticleVitationhasbeen西VenKcywords：hightemperaturesuperconductor，higIl—tempemturesupeconduc‘tingmagneticleVitatio