高速靜電噴漆渦輪系統(tǒng)穩(wěn)定性理論及結構動態(tài)特性研究.pdf

1、天津大學博士學位論文高速靜電噴漆渦輪系統(tǒng)穩(wěn)定性理論及結構動態(tài)特性研究姓名：楊志永申請學位級別：博士專業(yè)：機械制造及其自動化指導教師：黃田張大衛(wèi)2000.12.1AbstractInthisdissertation，theHighspeedPaintingAutomizors”tem(HsR～s)tsconcemed，whlchservesasoneofthekeycomponentsinautomatlcelec廿ostatlcpaln

2、nngnneswldelyusedlnautomobileindus仃MThcf01lowingsarestudiedtheorencallyf甜tIlenrstnmeaboutthekincmancstabilityofonetypeofHighspeedGasPaintingAutomlzoLthedynamlccharactensncsoiallotlIerHighSpeedPainⅡngAutomizorwithelastic丘

3、甚mesupponlngsystem鋤dtheonesotthesnLlctllredesi2nofbothTheembodimentsofthecontribunonscanbesummanZedasfollows，neequivalentmodelofHS隊S謝theIasticframesupponingsyst6misfirsIlysetupasacoupleofsubsyst鋤sofnonhomogenousboundaryc

4、onditionThedynamicmodelconsideringthedynamiccomplianceoftheframelstIlenobtalnedofthewholeroto卜bearing一丘amesystemingeneraIizedmodalcoordiIlateonmebasisofLagrange’sEqua60naIldModalS”meticMethodofsubs衄lcnlreS01utionme出odsof

5、也edynamiccharacteris娃csofHSfASwithelasticframesupportingsystemareinvestigatedtoga血whirlfkqucnc弘natllralfkqqency(criticaIVeIocity)andmainmodaletcThelawsarealsoputfor啪rdofhowthesecharacteristicsareinnuencedbythefollowingas

6、p∞ts：distancesamongbearillgs，positionsofthesupponing行amesaIldsti丘hessratioofthebearhgsinthesystemetc、TheseresuItstheorebcallylayagoodfoundationf打thedesign，ass鋤blyandm撕menallceofHSPASThed”amicmodelands01udonaritllmeticare

7、obtainedoftherotorsystemconsideringthedouble—cen訂渤gale陸ctoflhePaint沁AutomizorRotorSystenAndthelawofhowthedynalⅡiccharacteristicsoftheSystemaTeinnuencedbythest曲阻essofthesupportingframeunderdouble—c鋤幽gale骶ctis鋤alyzed11leno

8、nlineardynamicmodel0foneHigh—SpeedGasPa缸ingAutomizorsystemissetupandtIeJawisstlIdiedbet眥ensta“cbal柚cepo鰣tionandrocadngspeedofHSPASThus，tllec—ticalveloc畸underworkingconditionisfoundandthereIationbetwecnbearingclear鋤ceaJld

9、t11ecriticalVeloci鑼isreachedThekinema“cstabilityanddynamicrespollseoft11eGasPaintillgJ鈾tomlzorSystemarestIldiedoverareladvelywiderangeofrotatingspeedbynunlerlcalanal)1ic111etllodandthe“mehistories，phasediagramsandaxistra

10、cingcurvesareobtainedu11der、、orkingandnonworkingcondjtjonsFunl】em】0r乞Iher丑ngeoftJ】ecrjllcaJpara塒eteroflhesystemwjle】1Hopfbjfurca“onoccIIrsandthe1awbetweenaxistraceandbearingclearanceareacquiredTherelationsbeCweenmestmhes

11、sundersCaticpressureofthegasbearingandthediameterofthethromeholeandbearingclearanceaswellarestudtedAmeulodtooptinlizethedesignofthegasbearinginHSPASisadvancedthroughstimlessanabsis、whicllcane仃ectlveljralsesystemstifTness