磨合阶段机械密封端面空穴率测量统计及摩擦特性研究

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1、东南大学硕士学位论文磨合阶段机械密封端面空穴率测量统计及摩擦特性研究姓名：陈海霞申请学位级别：硕士专业：固体力学指导教师：何小元;孙见君20090524AbsttactMeasurementandStatisticsofProportionofEndFaces’CavitiesandResearchonFrictionCharacteristicsofMechanicalSealsSoutheastuniversityByCHENHai—xiaduringRunning—inPeriodSupervisedbyHEXiao—yuan&SUNJian

2、-junAbstractMechanicalsealsareequipmentssettlingsealbetweenswivelsandmachines．Mechanicalsealsarewidelyusedinindustry．Theperformancesofmechanicalsealsincludesealedperformancesandfrictioncharacteristics．Proportionofendfaces’cavitiesofmechanicalsealsvariesunderfrictionandwear．Mak

3、ingresearchesontherelationsbetweenproportionofendfaces’cavitiesandfrictioncharacteristicsduringrunning-inperiodcanofferacademicbasestodesignofmechanicalseals．Themaincontentsofthisdissertationareoutlinedasfollows：I．Summarizeresearchhistoryandactualityofsealedperformancesandfric

4、tioncharacteristics．Statethesignificancesoftheresearches．Compareinvestigativemethodsofsealedperformancesofcontactingmechanicalseals．Proposemethodofmeasuring3一DtopographyofsealendfacebasedonDICM．2．Introducethebasicprincipleofdigitalimagecorrelationmethod．Summarizemeasuringandch

5、aracterizingmethodsof3-Dtopography．Comparethreemeasuringmethodsof3一Dtopography．Putforwardcalculatingformulaof3-Dreconstructionbasedonbinocularstereovision．ValidatetheformulabasedondigitalimagecorrelationmethodanditsprogramusingCCDandcalculatordisposingsystem，andthatDICMisaneff

6、ectiveapproachtOtestandCanbeusedtomeasurethe3-Dtopography．3．Doresearchonmeasurementandstatisticofproportionofendfaces’cavitiesandfrictioncharacteristicsofmechanicalseals．Measurethetopography，cavities，frictioncoefficient，wearlossandfrictiontorqueofmechanicalseals．Relationsbetwe

7、enproportionofcavitiesandtime，frictioncoefficient，wearlossfrictiontorqueareobtained．Theserelationsshowchangingruleoftheperformancesofmechanicalseals．Rationalproportionofcavitiesis41．5％．Keywords：mechanicalseal，proportionofcavities，frictioncharacteristics，digitalimagecorrelation

8、method(DICM)II东南大学学位论文独创性声明本人声明所呈交的学位论文是我个人在导师指导下进行的研究工作及取得的研