基于ACIS的二維草圖參數(shù)化設計在工程制圖標準件中的應用.pdf

1、重慶大學碩士學位論文基于ACIS的二維草圖參數(shù)化設計在工程制圖標準件中的應用姓名：孫靖華申請學位級別：碩士專業(yè)：軟件工程指導教師：雷躍明羅明陽20091128重慶大學碩十學位論文英文摘要ABSTRACTAsinrecentyearstheconstructionmachinery，manufacturingindustry，developedrapidly，CADsoftwarehasbeenverypopularusedinthere

2、latedindustries，andit’SstatusaremoreandmoreimportantAlthoughdomesticCADindustrybooming，butmostofthemarketisstillmonopolizedbyecdemieCADsoftwareanditscompany；whilethelevelofdomesticengineeringhasgreatlyimprovedtoday，theen

3、gineeringmodelingapplicationsbecomemorewidespreadmostusersalestartingfromthepastto2DbasedCADprogramtooperatewith2dplanethemainandauxiliary3ddesignoftransition；ontheotherhand，manythiscompanyproducetheirown3dsystemanddynam

4、icparametersystemlately，updateitonthenewversionofproductionWhiletraditionalstaticparametersystemsareoftendifficulttoadapttothedynamicprocessofproductdesignProductdesigntogothroughconceptualdesignsketchdesigndetaileddesig

5、nandotherprocessintheprocess，productmodelingistoberepeatedlyrevisedAdoptionofsuchaCADsystemwillcausealotofduplicationofworkisnotconducivetothedesignprocessquickly，especiallyinsomelocalcouplingahighplace，oftenthechangesis

6、notconducivetothereliabilityofdata；ingeneral，areoRenmodifysomedimensions，whilethetopologicalrelationsamonggeometricelementsrarelychange，changeisoftenafterthegeometryandtheoriginalstructureisthesame，orslightlymodifiedtodo

7、suchanaturecallbemaintained，usingthisisomorphismCallbetosimplifythedesignprocessalotofstabilityenhancement；InthispaperinthepastengineeringCADsoftwaredevelopmentandCADdesignworkofinspirationandbasisofthebackgroundlightoft

8、heactualengineeringdrawingsonthegrotmdtodiscussthedynamicparametersofaninteractivemappingsoftwaredesignprocess，inordertosolvethisproblemprovidesagoodwayGraphofapartorthemodificationofcertainpartsofthesize，auto—completeth

9、erelevantpartsofthegraphchanges，inordertoachievesizeonthegraphitselfdrivenwhichalsoimplicitlytodrivethenecessarygeometricinformationandconstraintrelationships；sometimesconstrainedtherelationshipbetweentheindependentparam