基于單供氣孔靜壓氣體球軸承潤滑機(jī)理及承載性能研究.pdf

1、武漢科技大學(xué)碩士學(xué)位論文基于單供氣孔靜壓氣體球軸承潤滑機(jī)理及承載性能研究姓名：楊國文申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械制造及自動(dòng)化指導(dǎo)教師：高全杰郭良斌20100508第1I頁武漢科技大學(xué)碩士學(xué)位論文AbstractWiththedevelopmentofscienceandtechnologythegaslubricatedbearingscomeintowidelyusingInthefieldsofprecisionandultrapr

2、ecisionmachininghighspeed，foodprocessingandnowmorepopularmicro—motors，theairbearingwillhaveaverywiderangeofapplicationsHoweverthestudyontheperformanceofthegas—lubricatedbearingevolvesandperformancetestingWasveryslowlywhi

3、chgreatlyrestrictsthepromotionandapplicationofairbearingsNowwiththeemergenceofdedicatedanalysissoRwareandhi曲一performancecomputers，theycouldsolvenonlinearequationsinbearingdesignandsimulateparametersofthebearingItprovides

4、aneffectivewayInthispaperthenumericalanalysismentionedaboveandit’sexperimentmethodsareparticularlypresentedFirst，InthispapersphericalhydrostaticgasbearingwhitoneinherentcompensationsupplyholeWasanexample，establishingmode

5、lequationsUsedtheReynold’SgasequationitWasderived，loadcapacityW：gasmassflowmandstiffnessKItWasdifferencemethodthatsolvedReynoldsequationcalculations，byjoiningtheboundaryconditionsThroughMatlabprogramming，solvedoutofthega

6、spressuredistributionacrossthemembraneSecond，thegasbearingmodelWasbuildedinGAMBmthenwassimulatedbythesoftwareofFLUENTbychangingtheparametersandgasbeatingstructureparameters，intheendgettingthestraightforwardbearingperform

7、ancegraphicsTheycouldhelpdesignersintuitiveunderstandingofthesegraphics，enhancingbeatingdesignlevelThenbyprocessingtheresultsofsoftwaresimulation，gettingthestraightforwardbearingperformancegraphicsBycomparingtheresultsof

8、processeddataofsimulationandnumericalsolution，gottheresultsthattheywereverysimilar，whichshowedthatweuseddifferencemethodinsolveinggasReynoldsequationcorrectlyFinalllyusingtherelativemovementtheoryIdesignedameasureairbear

9、ingpressureofthemembranearoundthedeviceandloadingdeviceThestructurehassomecharacteristices，suchassimple，highreliabilityandconvenientmeasurementKeywords：aerostaticbearing；gaslubricated；difference；stiffness：staticcharacter