基于點(diǎn)云數(shù)據(jù)的復(fù)雜型面結(jié)構(gòu)產(chǎn)品實(shí)體建模研究.pdf

1、上海交通大學(xué)碩士學(xué)位論文基于點(diǎn)云數(shù)據(jù)的復(fù)雜型面結(jié)構(gòu)產(chǎn)品實(shí)體建模研究姓名：陳恭錦申請學(xué)位級別：碩士專業(yè)：機(jī)械制造及其自動化指導(dǎo)教師：習(xí)俊通20050201上海交通大學(xué)碩士學(xué)位論文――VTheresearchonsolidmodelingofstructureproductwithcomplexsurfacesbasedonpointcloudABSTRACTReverseengineeringisanimptantsupptingtech

2、nologyofdigestingadvancedtechnologyshtingtimeofproductredesignmanufacturingisoneofcetechnologyofadvancedmanufacturingtechnology.Startedfromthemeasurementofexistingobjectreverseengineeringsegmentsthemeasureddatageneratest

3、opologymakesitsgeometricalmodel.Itiswidelyusedinaviationshipbuildingautomobilemouldtechnologyclinicarea.Indertogetsolidmodelofproductswithfreefmsurfacethispaperresearchestherelativetheiesapplications.Dataacquisitionisani

4、mptantstepofreverseengineering.Thispaperdiscussesthetechniquesofcodinatedataacquisitionanalysestheacteristicsapplicationfieldofdifferentmeasuremethodsthenproposesthemeasuremethodofthispaper.Preprocessionofpointclouddatai

5、sthecriticaltechnologyofreverseengineering.Thepaperdiscussesthetechnologyofregistrationdatareductiondatasmoothnessdatasegmentation.TheproductCADmodelreconstructionofcomplexsurfaceisoneofthemostimptantaspectsinthereversee

6、ngineering.Thethesiselabatestheprincipaltechniquesofsurfacereconstructionofreverseengineeringanalysestheproblemsofsurfacereconstruction.Thefeaturetechnologyinreverseengineeringisstudied.Fundamentaltheiesoffeatureinrevers

7、eengineeringsuchasfeaturedefinitionfeatureclassificationareintroducedinthisthesis.Basedontheanalysisofpointcloudpropertythequadricsurfacefeaturesthefreefmsurfacefeaturescanbeextractedfrompointcloud.Researchthekeytechnolo

8、gyofRECADcombinedsolidmodeling.AnalysethemethodtechnologyofAclasssurfacereconstrutiondiscusstheproblemofcurvesurfacereconstutionthengettheflowtonAclasssurfacereconstrution.Atlastafterthecrectanalysisofthedifferenteffectf

9、actresearchedthereverseengineeringsolidmodelingapplicationofanautomobilelampgotits3Dsolidmodelsatisfiedwiththeprecisionsmoothness.Keywds:ReverseEngineeringDataacquisitionSurfacereconstructionGeometricModelingSolidModelin