罗茨鼓风机叶轮CAD_CAM技术研究

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1、中南大学硕士学位论文罗茨鼓风机叶轮CAD/CAM技术研究姓名：刘金梅申请学位级别：硕士专业：交通运输工程指导教师：杨岳;苏春模20070501ABSTRACTRootsBlower,whichiswidelyappliedintheindustrydomainforeachkindofgastransfer,isanimportantindustryequipment．TheimpelleristhemostessentialpartofRootsBlower,anditsdesignandmanufacturequalitywillaffectthe

2、operatingperformanceofRootsBlowerdirectly．ThroughresearchofCAD／CAMtechnologyforimpeller,thedesignandmanufacturequalityofproductcanbegreatlyimproved，andtheoperationalreliabilityofimpellerCanbeguaranteed．Circularprofile，involuteprofile，cycloidprofilearethreebasicbladeprofilesofRoo

3、tsBlowerimpeller．Theequationofthethreebasicbladeprofilesareanalyzedandresearchedflrstly,andselectionofradialdistanceandaxialdistanceratio，calculationofareautilizationfactoraretheoreticallyanalyzed．ThedesignefficiencyofimpellerCanbelargelyenhancedthroughparametricdesign．Inthefoun

4、dationofanalysissumnlaryofthemethodsofparametricdesign,researchofparametricdesignforimpellerbasedonSolidWorksisdeveloped．Ideaforparametricmodelingofimpellerthatissuitableforallkindsofbladeprofileisproposed,andtheparametricdesignflowofimpellerisestablished．TakingVisualBasicasdeve

5、lopmentkit，underSolidWorksenvironment,functionofparametricmodelingoffivekindofimpellers，includingtwobladecircularimpeller，threebladecircularimpeller，twobladeinvoluteimpeller，threebladeinvoluteimpeller，twobladecycloidimpeller,arerealized．Usingdynamicgraphicalsimulationtechnology,

6、themeshingsituationofimpellerCanbeeffectivelyanalyzed．ThepaperhasstudiedthreekindofdynamicgraphicalsimulationtechnologybasedonSolidWorksincludingmethodoffurtherdevelopment，methodofusingplug-inCOSMOSMotionandmethodofusingplug-inAnimator．TakingCOSMOSMotionandAnimatorasplatforms，th

7、emeshingsimulationofRootsBlowerimpellerisrealized．Usingadvancedreasonablenumerical—controlledtechnologyandnumerical—controlledprogrammingmethodisallimportantconditiontoⅡguaranteetheprocess小脚i够ofbladesection．Thepaperhasstudiedgeneralmethodofcomputeraidednumerical—controlledprogra

8、mmingandmainpointsofnumerical-controlledshaping