迷宮密封流場動力特性系數(shù)研究.pdf

1、西安建筑科技大學(xué)碩士學(xué)位論文迷宮密封流場動力特性系數(shù)研究姓名：曹體進申請學(xué)位級別：碩士專業(yè)：機械設(shè)計及理論指導(dǎo)教師：張小龍20040601烈安建筑斟技大學(xué)碩士學(xué)位論文iIiiiiiii■；；；；StudyontheDynamicCharacteristicsofLabyrinthSealsSpecialty：MechanicalDesignantiTheoryName：Can喇inInstructor：ProfessorZhangXia

2、olongABSTRACTLabyrinthsealshasbeenwidelyusedinturbinemachine，sothestudyonthetheoryofselfexcitedanddynamiccharacteristicshasgreatimportanttheoreticalandpracticalmeaningtothedesigningofaturbinemachinewimasounddynamicfimeti

3、onThisarticleismainlyaboutthestudyonthedynamiccharacteristicsofLabyrinthSealsandconcludesthedynamiccharacteristicoflabyrinthseals謝mthetwo—controlvolumemodelbythemeansofturbulentflowtheoryandcalculatingfluidmeehanicsinord

4、ertofurtherstudyontheflowinglawofthelabyrinthsealsnlemaincontentsareasfollows：Firstly，theintroductionofthelabyrinthsealstechnology，includingtheclassificationtheformsandthetheoryoflabyrinthsealsSecondly，thisarticlestudies

5、thestaticworkingstateofthelabyrinthsealsinsteadyflow，includingthecavity、therelativethicknessbetweengear、theproportionofcavitydepthtocavitywidth、variousgears，thelevelangleofgear、theinfluencesofhelicalgearangleandit’sflowi

6、ngdirectionThirdly，thisarticleconcludesthemainequationsetbythemeansoftwo—controlvolume，andthendefinesthenon—solutionvariablequality，andfinallysimplifiesthemainequationsetFourthly，thisarticlefindsthesolutiontothemainequat

7、ionsetaboutlabyrinthsealsmodeloftwo—control—volume，concludesthepressuredistributioninlabyrinthseals，andfttrtherobtainstheanswerofthecalculationformulaonthefourdynamiccharacteristicsaboutlabyrinthsealsFifthly，thisarticlec