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1、西安理工大學(xué)碩士學(xué)位論文widthself-actinggas-lubricatedjoumalbearing-rigidJeffcottrotorsystem，andtherigidrotorsystem謝tIlgyroscopicsupportedbythreeaxialgroovesgas—lubricatedjournalbearingareinvestigatedbytheorbitdiagram，Poincar6map，timeseriesdiagram，frequencyspectrumdiagramandbifurcationdiagram．(4)Thenonlineardy
2、namiccharacteristicsofthefixed-tiltingpadsgas-lubricatedjoumalbearingareanalyzedbytheassemblymethod．Thefeasibilityoftheabovemethodsandthecorrectnessofthecalculationcodesarevalidated．Theeffectsofpivotratioandpreloadcoefficientonthenonlineardynamiccbaractcristicsofthefixed-tiltingpadsgas-lubricatedjo
3、urnalbeating-rotorsystemalestudied．‘一、ThisstudyCanprovidethetheoreticalreferences∞thenonlineardynamicanalysisoftherotorsystemsurpportedbyself-actinggas一1ubricatedjournalbeating，andCandirecttheproductdesignofthepracticalfixed—tiltingpadself-actinggas—lubricatedjournalbearing。rotorsystem·Keywords：Sel
4、f-actinggasbearingRotorDifferentialtransformmethodiNonlinearBifurcation_l_●I-____I--_-l--_●●_-l_-_____●-_____●-__-l_____●___一meworkissupportedbyNationalKeyBasicResearch勰dDevelopmentProgramofChina(GrantNo·2007cB707706)，NationalNaturalScienceFoundationofChina(GrmutNo．51075327)，OpenProjectofStateKe’yL
5、aboratoryofMechanicalTransmission(GrantNo．SKLMT-KFKT-201011)，Natural’ScienceFoundationofSh踟xiProvinceofChina(GrantNos．2009JQ7006，2007E203)andNaturalScienceFoundationofEducationDepartmentofShaanxiProvinceofChina(GrantNos．09JK680，07JK340)．II瀨。--m◇。弼?！?””?！?、’11”。1：。j’∥’?！?‘”’“’。。沁薜目錄1．緒論??????????????
6、???．?????一．o．．．o．oo．．．oo．oo??????????????·l1．1課題研究的背景和意義??．皇：???．．茹?????????????????11．2國內(nèi)外氣體軸承的研究現(xiàn)狀??????????????????????21．3論文研究的主要內(nèi)容?????????????????????????32．動(dòng)壓氣體軸承非線性氣膜力的計(jì)算??????????????????．???．52．1可壓縮氣體動(dòng)壓潤滑的Reynolds方程??????????????????52．1．1氣體動(dòng)力潤滑的基本Reynolds方程????????????????。52．1．2動(dòng)壓氣體潤滑Re
7、ynolds方程的無量綱形式?????????????．．72．2動(dòng)壓氣體潤滑Reynolds方程求解的微分變換法??????????????82．2．1微分變換法的定義????????????????????????82．2．2微分變換法的運(yùn)算法則??????????????????????82．3動(dòng)壓氣體軸承的氣膜壓力分布和非線性氣膜力?????????．??O．O．．．．OqD092．3一動(dòng)壓氣體潤滑R
