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1、中南大學(xué)碩士學(xué)位論文摘要磁懸浮支承具有無(wú)摩擦、無(wú)磨損、無(wú)需潤(rùn)滑、低功耗、無(wú)噪聲等特點(diǎn),從而使其在軸承、導(dǎo)軌、電子封裝平臺(tái)等領(lǐng)域具有良好的應(yīng)用前景。本論文結(jié)合國(guó)家“973”項(xiàng)目的“近零摩擦高速高精運(yùn)動(dòng)的生成和控制”課題,對(duì)一種磁懸浮平臺(tái)的承載能力及穩(wěn)定性進(jìn)行研究,以期為該磁懸浮平臺(tái)穩(wěn)定控制提供依據(jù)。論文的主要研究?jī)?nèi)容如下:I、利用計(jì)算電磁學(xué)的基本理論,根據(jù)磁懸浮平臺(tái)磁路的設(shè)計(jì)要求,設(shè)計(jì)了磁懸浮平臺(tái),并對(duì)其磁路進(jìn)行了分析計(jì)算,建立了磁懸浮平臺(tái)磁感應(yīng)強(qiáng)度、電磁力模型。,2、應(yīng)用ANSYS有限元分析軟件,在磁懸浮平臺(tái)有限元模型建立基礎(chǔ)上,分析了6個(gè)
2、自由度的各向位移對(duì)磁懸浮系統(tǒng)穩(wěn)定性的影響規(guī)律,查明了電磁物理參量與磁懸浮平臺(tái)承載能力的相關(guān)關(guān)系。.3、分析了平臺(tái)相對(duì)幾何位置誤差(平行度、垂直度)對(duì)磁懸浮平臺(tái)電磁力矩以及平臺(tái)穩(wěn)定性的影響規(guī)律,并提出了磁懸浮平臺(tái)平行度、垂直度的控制目標(biāo)。4、對(duì)磁懸浮平臺(tái)不同狀態(tài)下磁場(chǎng)強(qiáng)度進(jìn)行了實(shí)驗(yàn)測(cè)試,與ANSYS分析結(jié)果進(jìn)行了對(duì)比,驗(yàn)證了ANSYS有限元分析的正確性。關(guān)鍵詞磁懸浮平臺(tái),計(jì)算電磁學(xué),有限元,ANSYS軟件,承載特性,制造精度中南大學(xué)碩士學(xué)位論文AbstractMagneticsuspensionhasmanycharacteristics,s
3、uchasnorubing,nowearingandtearing,non-lubricating,lowconsumption,nonoise,etc.thusithasagoodapplicationprospectinmanyfields,suchasbearing,guide,electronicencapsulationplatform,etc.Thispapercombines’’nearzerofrictionhighspeedhighprecisesport’Sformandcontrol”subjectof?!?73’’p
4、rojectofcountry,studythebearingcapacityandstabilityofakindofmagneticsuspensionplatform,inordertooffergistwhichhelpthismagneticsuspensionplatform’scontrolledsteadily.Themainresearchcontentsofthepaperareasfollows:1、Utilizedthebasictheoriesofcomputationalelectromagnetics,acco
5、rdingtothedesigningrequirementonmagneticwayofmagneticsuspension,designedmagneticsuspensionplatform,analysedandcalculateditsmagnetismway,setedupmagneticsuspensionplatform’smagneticinductionintensityandelectricmagneticforce.2、UsedthefiniteelementofANSYS’Sanalyticalsoftware,b
6、asedonthefiniteelementmodelofmagneticsuspension,analysed6degreesoffreedom’Sdisplacementimpactsonmagneticsuspension’Ssystemstability’Slaw,findedoutelectromagneticphysicsparametercorrelatedwithplatformbearingcapacityofmagneticsuspension’Srelation.3、Analysedtherelativegeometr
7、ypositionerroroftheplatform(paralleldegree,verticaldegree)totheelectricmagneticforceandsteadyinfluencelawofmagneticsuspensionplatform,andgaveplatformparalleldegree,verticalcontrolgoalofmagneticsuspension.4、Testedmagneticfieldintensityunderthedifferentstatesofmagnetic/suspe
8、nsionplatform,comparedwithANSYSanalysisresult,verifiedtheexactnessofthefiniteelementofANS