表面諧波特征對動壓軸承承載能力影響的研究.pdf

1、河南科技大學(xué)碩士學(xué)位論文表面諧波特征對動壓軸承承載能力影響的研究姓名：趙耘申請學(xué)位級別：碩士專業(yè)：機械制造及其自動化指導(dǎo)教師：劉建亭@河南科技大學(xué)碩士學(xué)位論文IISubject:StudyonTheEffectofSurfaceHarmonicWave’sacteronHydrodynamicBearing’sCarryingCapacitySpecialty:MechanicalManufactureAutomationName:Zh

2、aoyunSupervis:LiujiantingABSTRACTThispaperstudiedtheeffectofharmonicwavestothecapacityofhydrodynamicbearinganalyzedafewkindsofcommoncylindricalstructurehydrodynamicbearing.Deducedtheexpressionofoilfilmthicknessminimizeoi

3、lfilmthickness.Intheyitwasanalyzedcomputedthatthestaticacterofcommoncylindricalradialhydrodynamicbearing.Onthebasethehydrodynamicbearingwithharmonicwavesbasbeendesignedithasbeencarriedoutthecomparableresearchintheyexperi

4、ment.Inthecaseofsteadwkingconditiontwokindsofhydrodynamicbearing’stwodimensionReynoldsequationwassolvedbythesupposeofinfinitelynarrow.Theoilpressuredistributionangleofdisplacementfrictionfceoilflowsoonwascalculated.Durin

5、gthecourseofsolvingthetwodimensionReynoldsequationoilloadsurfaceofthehydrodynamicbearingwastreatedwithgriddiscretization.TheReynoldsequationwasconvertedintolinearequationgroupbyusingthedifferencemethod.Bythesuccessiveove

6、rrelaxationmethodthelinearequationgroupwassolvedthepressurefielddistributionwasobtained.Thenumericalintegralmethodswasappliedtocomputethebearingstaticperfmanceslikecapacityofloadtheangleofdisplacementfrictionfceoilflowso

7、on.AtthesametimethispaperemployedtheMatlabsoftwaretosimulatethepressurefielddistributionanalyzedtheresult.Sodrewaconclusion.Whenthenumberofharmonicwaveisthreetheamplitudeofwaveishalfoftheminimizeoilfilmthicknesstheharmon

8、icwavesbearinghasthebestcomplexperfmancethespecificembodimentisthattheharmonicwavesbearing’scapacityofloadcoefficientoffrictionstabilityofrunningisbetterthanthecommoncylindricalstructurehydrodynamicbearing.Accdingtothere