面向4D信息模型的產品設計評價技術研究.pdf

1、武漢理工大學碩士學位論文面向4D信息模型的產品設計評價技術研究姓名：毛偉軍申請學位級別：碩士專業(yè)：機械制造及其自動化指導教師：李剛炎20051001AbsttactThecurrent3dimentionproductdesignprocessisaparameterizedtraitsculptingsystem，whichhasmadegreatprogressovertraditionalgeometrysculptingsyst

2、emItcarlintegratealltheprojectinformationinalldesignstages，anditssculptingprocessismuchmorecompact，buttherearestillsomeproblemswithitInordertosolvetheseproblems，theconcept，meaningandarchitectureof4dimention(4D)informatio

3、nmodelareadvanced，andaintact4Dproductinformationsystemisestablished，tosolvethetechnicalproblemsrelatedtoitThe4Dinformationmodelorientedproductdesignassessmentisakeytechnologyandavitalsupportingtoolfortheimplementof4Dinfo

4、rmationsystemItisaguaranteeforthecooperativequeryandobtainingoveralloptimumTheresearchonthetheoryarchitecture，mlesandmethodofproductdesignassessmentwhichorientsto4Dinformationsystemandservingtheproductwholelifecycleisofs

5、ignificantmeaningtothefurtherimplementof4DinformationsystemTheactualityof4Dinformationmodelisanalyzed，andthesimilaritiesanddifferencesofitsapplicationinmechanicaldomainandotherdomainarestudiedTheactualityofdesignassessme

6、ntisdiscussed，andtheadvantagesanddisadvantagesofmainstreamassessmentmethodsareanalyzedBasedontheanalyseofcurrent3DCADdesignsystem，thebasicconceptionof4DinformationmodelisexpoundedBasedonobject，the4Dproductinformationmode

7、lisdividedintothreelayers，namelythedatalayer，thedataobjectlayerandbusinessobjectlayerthearchitectureandmeaningofwhichisexpoundedindetailThe3Dviewdescriptionandarchitectureof4DinformationareanalyzedAimingattheinherentchar

8、acterof4Dinformationmodel，thearchitectureofproductassessmentsystemorientingtoitisestablished，anditsconstitutionisintroducedindetmlAccordingtothecharacteristicandrequirementofeachdesignstage，theassessmentsystemandcorrespo

9、ndingassessmentmechanismareestablishedThenthemethodsandarithmeticofthesystemisresearchedThesyntheticassessmentarithmeticbasedonwaveletneuralnetworksisadvancedAimingattheissueofinformationimperfectionindynamicassessmentpr