面向飛行器總體設計的虛擬裝配約束管理研究.pdf

1、南京航空航天大學碩士學位論文面向飛行器總體設計的虛擬裝配約束管理研究姓名：吳玲申請學位級別：碩士專業(yè)：飛行器設計指導教師：劉毅20080101面向飛行器總體設計的虛擬裝配約束管理研究iiABSTRACTAssemblyisanimptantstepintheproduct’slifecycle.Comparedwithothercommonmechanicalproductstheaircrafthasgreaternumberofpa

2、rtsnarrowspacesotheprocessofassemblybecomescomplicated.Physicalprototypeisgraduallyreplacedbydigitalmockup.Thevirtualassemblytechnologysupplieseasydirecthumancomputerinteractioninterfacesothatthesimulationenvironmentsimu

3、lationoperationinthevirtualenvironmentcanbeclosertorealwd.Therefetherealizationofaircraftassemblysimulationinthevirtualenvironmentisverysignificantffindingoutdealwiththedefaultofdesigninadvancereducingthedesigncostoptimi

4、zingproductperfmance.Inthisthesisonthebasisofanalyzingtheresearchapplicationofconstraintmanagementdomesticallyabroadthecrespondingrelationbetweenassemblygeometryconstraintgeometryconstrainttypesusedfrequentlywereanalyzed

5、.Aautomaticgeometryconstraintrecognitionalgithmwasproposed.Thisconstraintrecognitionschemesuchasrequiredpatchacquisitionconstraintprecedencejudgeconstraintparametermatchingdestinationpositionmatchingconstraintvalidityche

6、ckingwereadoptedOnthebasisofresearchingconstraintmanagementconstraintsolvingmethodwasanalyzedchosentheequivalentrelationshipbetweengeometryconstraintDOFwasanalyzed.TheexactplacementalgithmbasedonDOFwasproposed.Theapplica

7、tionshowsthatthisconstraintsolvingmethodcansolveconstraintrecognitionexactplacementinvirtualassembly.SomevirtualassemblyfunctionsofvirtualdesignenvironmentbasedonCATIAhasbeenrealized.Theresearchofthetechnologiesprovidesg