基于Web的三維造型的協(xié)同設計.pdf

1、中國科學技術大學碩士學位論文基于Web的三維造型的協(xié)同設計姓名：郝瑜申請學位級別：碩士專業(yè)：測試計量技術與儀器指導教師：沈連婠20090501摘要ABSTRACTItisachallengingtasktodevelopaconcurrentdesignCADsystemforsolvingmultipleusercollaborativedesignproblem，duetothehighheterogeneityofvariouse

2、ngineeringcomputertoolsandawiderangeofdistributedorganizationsgeographicallyInthispage5awebbasedsynchronouscollaborativedesignenvironmentisproposed，whichprovidesavirtualplatformforgeographicallydistributeddesignemtodesig

3、n3DmodelsinmechanicalengineeringThesystemconsistsofthreeparts：presentationtierbusinesslogictieranddataservicetierForthepresentationtieritcontainsthedemonstrationlogicinordertoprovideinteractivefunctionforusersAscustomers

4、loginattheclient—side，theycandesignandedit3Dentitiesontheirownbrowsers，whiletheserversideapplicationsasthebusinesslogictierlettheresultsbeshownontheirpartnem’webpagessynchronouslyAlltheneworupdatedentitieshaveidentificat

5、ioncodestecordidentitiesoftheiroperatorsinthedataservicetierWiththesystem，theuserscanalsodirectlycreateandedit2DengineeringdrawingsofDWGformatonlineAlltheobjectsinthedrawingcanbeoperatedcollaborativelyAsakeytechnologyane

6、ntity—basedaccesscontrolmechanismisemployedtosettleconflictionincollaborativedesignprocessInordertodesign3Dobjects，thepaperexpandedthe2Dsystemplatforminto3Dfieldsuccessfully’whichprovidesa3DmodelingplatformembeddedinAlso

7、，mutisubjectsdevelopingandBooleanmodelingwererealizedinthissystemFinallyabriefsummarizationofourworkandprospectiveplanforthefutureworklSgivenKeywords：WebbasedCAD，Collaboration，3DModeling，Concurrentdesign，Interactivemanip