面向生產(chǎn)線的虛擬仿真研究.pdf

1、華中科技大學(xué)博士學(xué)位論文面向生產(chǎn)線的虛擬仿真研究姓名：王書亭申請學(xué)位級別：博士專業(yè)：機械設(shè)計及理論指導(dǎo)教師：鐘毅芳周濟2002.9.29華中科技大學(xué)博士學(xué)位論文ABSTRACTVirtualSimulation(Vs)whichISthekemelandbaseofVirtualManufacturing(VM)hasattractedgreatattentionindesigningandanalyzingofproductionli

2、neinmanufacturingsystemsnowadaysnleVSmodelingformalismandtheVSstrategyhavebeenstudiedindetailSOastomeettheactualrequirementsConsequently，aVSprototypetoolthataimsatsupportingthestudydesign，andanalysisofproductionlineshasb

3、eenimplementedforthefirsttimeinteriorlyThemainpointsaresummarizedasfollows：Firstlyafterstudyingthestructuresofproductionlinesandthesimulationmethodsfordesigningproductionlines，thisdissertationidentifiesthefunctionsofaVSs

4、ystem，whichmeettherequirementsofproductionlinesinmodemmanufacturingsystemsThen，thefunctionmodeloftheVStoolisstudiedanditsmodulararchitectureisproposedSecondlybasedonintensiveresearchontheoryofVSmodelingforproductionlines

5、，anewVSmodelingformalismispresentedWithobjectorientedmodelingmethod，theresourcesmodelofproductionlinecanbedescribedbyfivekindsofsubmodels，namelyobjectgeometricmodel，objectkinematicmodel，object—relationshipmodel，objectbeh

6、avioralmodelandobjecthierachicalmodelwhichCanbeexpressedwitlldirectedgraphsThus，thestaticmodelofproductionlineCanbedepictedclearlytocharacterizethestructure，appearance，layout，functionandcontrollogicofproductionline，andth

7、eunificationandformalizationofmodelexpressionsCanberealizedThirdlytheobjectorientedVSstrategyisinvestigatednlestochasticdirectedgraphisachievedaftertimebeingintroducedintothediectedgraph，whichdiscribesthestructureofthesu

8、bmodelsofresourcesinproductionlineIntegratingthequeuetheoryandschedulerules塒t11thestochasticdirectedgraphthedynamicVSmodeliscarriedouttoexpressthebehaviorsofproductionlineMoreoverrealtime3Danimationsimulationisimplemente

9、dAtlast，onthebaseoftheaboveanalysis，studyanddiscussionsonVS，aproductionlineorientedVSprototypetool，namelyInteVSS，isimplementedusingOpenGLandVCHastheprogramminglanguageontheWindowsNTandWindows9xplatformInaddition，flpracti

10、calexampletowhichInteVSSisappliedisgiventOshowthefeasibilityandtheeffectivenessofresearchresultsIntheendofthedissertation，conclusionshavebeendrawnandthefuturedirectionsinthefieldaregivenKeyWords：ProductionLine，VirtualSim