欢迎来到天天文库
浏览记录
ID:33011859
大小:2.84 MB
页数:70页
时间:2019-02-19
《燃气轮机透平叶片几何形状重构技术分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、ABSTRACTThispaperiSbasedonbasicresearchofmanufacturinglargepowerequipmentthatcomefromthenationalprogramonkeybasicresearchproject.Theprojectistoresolvethebasictheoryandkeytechnologyofdesigningandmanufacturingadvancedheavygasturbinethatispartofnationalstrategy.Inordertooptimizethep
2、roduct—structure,improveproductqualityandreduceproductdevelopmentcycle,basedonreverseengineering,reconstructiontheorywasappliedtoglobalimplementinterpolationfordatamatrixofturbineblades.Thatcanprovidetechnicalandmanufacturingsupport.Themainresearchworkofthispaperisasfollows:1.Ino
3、rdertoobtaindatapointsofgasturbineblades,datameasuringandprocessingisused:selectionofmeasurement,probetypeselectionandcalibration,toestablishbaselinemeasurementcoordinatesystem,programmingscanningmeasurement,thedatapointpretreatment.2.Thispaperhasresearchedthedefinitionandnatureo
4、fBdzier、B.splineandNURBS(Non·UniformRationalB—Spline),andcomparingtheiradvantagesanddisadvantages,chosentoapplyNURBScurveandsurfacetoreconstructgasturbineblades.3.ThetheoreticalreconstructionofNURBScurveandsurfacehasresearched.Comparingofthetworeconstructionmethodsofinterpolation
5、andapproximation,accordingtothemeasureddata,adoptthemethodofinterpolationtoNURBScurveandsurfacereconstruction.4.FairingtreatmentiscarriedoutondatapointsofthesectionCUrveandsurfaceofturbineblades.Accordingtothemeasureddata,adoptthemethodofwaveletmethod.5.InDelphiprogrammingenviron
6、ment,OpenGLisappliedtoachievesectionchiveandsurfacereconstructionofgasturbineblades.StudiedtheprogrammingcharacteristicsofDelphiandOpenGL,theyCanbecloselyintegrated,easytoimplementthecomputingandgraphicsalgorithm,guaranteethecorrectnessandreliabilityofthealgorithm.ⅡTheexperimentm
7、easuredthesectioncurveandsurfacedataofgasturbineblades.Then,thedatapointsloadintotheprepared1.econstmctionprogram·Eventually,verifiedtheprogramcouldeffectivenessachievemesectioncurveandsurfacereconstructionofgasturbineblades.KEYWORDSgasturbineblades,dataprocessing,surfacereconstr
8、uction,waveletfairingm中南大学硕士学位论文目录目录摘要⋯⋯
此文档下载收益归作者所有