汽车零部件拆卸序列自动生成的理论研究及实现

重庆大学硕士学位论文汽车零部件拆卸序列自动生成的理论研究及实现姓名：赵树恩申请学位级别：硕士专业：车辆工程指导教师：冉振亚20050401IIIIIIABSTRACTAstheboomingdevelopmentoftheautomotiveindustry,theyieldandthegrossofautomobilesarerisingrapidly.Atthesametime,theamountofoldautomobileisincreasing,someproblemssuchasresourceshortage,environmentpollution,andsoon,havebeenconcerned.consequently,thestudyofhowtoreusethepartsofautomobileefficientlyanddecreasethepollutionproducedbythecastoffhasalreadybecomethemostimportantandconsiderablesectionofautomobilegreentechnologyresearch.Basedontheinlandandoutlandresearchesonthisfield,inthisdissertation,thebasictheoriesoftheLCAsystemstructure,disassemblyandrecycleinformation,theinfluencefactorsofdisassemblyprocess,disassemblysequenceplanningandassessmentarestudieddeeplyandsystematically.ThepaperpresentsadisassemblysequenceplanningmethodofautomobilepartsandcomponentsbasedonPetriNet.Themaincontentasfollows:1.Combiningwiththebaseperformanceandrequireofgreenautomobile,thegreendesignstructureofLCDisputforward.Thecharacteristicsandrulesofdesignfordisassemblyanddesignforrecycleamongtheautomobilegreendesignareanalyzed.2.BasedonthetechnologiesandfunctionofexistingCAD/CAMsystems,theproductdisassemblyinformationanditssourceareanalyzed.Thedisassemblyandrecycleinformationnetworkchartisestablished.3.Thegeometryandtopologystructurebetweenthepartsofproductisanalyzedandtheconceptofdisassemblyrestrictmatrixisbuilt,Accordingtotherestrictmatrixandthestabilityofsub-disassembly,whetherapartoranassemblycanbedisassembledisascertained.4.Basedontheformerresearch,themethodofdisassemblysequenceplanningbasedonPetriNetisintroducedandadisassemblyPetrinets(DPN)modelthatincludesrecoveryvalueanddisassemblycostwasestablished.ThroughthelinearprogrammingoperationofPetriNetrelatingmatrix,thesub-disassemblyclusteringandtheoptimizationdisassemblysequencecanberealized.5.Thesoftwaresystemofanalysisfordisassemblyandassessmentforrecyclableisdeveloped.Thesystemcontainsmanymodules,suchasdisassemblyinformationexpress,productdataprocessing,disassemblyanalysis,recyclableassessment.IVThroughtheresearchingofthetheoryondisassemblyandrecyclesequencegeneratedautomatically,especiallyputthePetriNetandtheinvariablecapabilityanalysesmethodintothedisassemblyandrecycledecision-makingwillprovideabasedonPetrinetswasintroduced.Theoptimaldisassemblysequencethatsatisfiedtherequirementconstraintswasgainedbycomputingthemodel.Inconclusion,disassemblyandrecyclingandregenerationofautomobilepartsisoneofeffectivemeanstosavingresourcesreducingcostsandrealizingthegreendesignofautomobile.Itcanregenerateandreuseautomobileproductsasmaterial,energyandpartswhichwillmaketheproductsareincirculatingindustrialenvironment.Thetechnologynotonlyrealizesreuseandenvironmentalprotectionbutalsocanachievethecontinuabledevelopmentofautomobileindustry.Keywords:ProductLifeCycle,Disassembly,Recycling,Sub-disassemblyClustering,DisassemblySequencePlanning,PetriNets111.11.1.1552090500070%6100700800450260645015002400550[1][2]2500241/41/36.2605%1.1.22Fig1.1TheEco-labellingofdifferentcountriesintheword1992211976198619961991EPREcolabelling19945199741ISOl4000GB/T240001.11.1.320“”“”“”2031993199212006211.28101.2.1[3]80%1500053704150040075%80%20%30%50%55%200272004201595%75%80%1995250519984200285%201595%PSA7200900PSAICIENIMONT19961.2.219851994109.88:16.20:15.78019851994101.42:1.06:160%29%11%909523%199731%201060023403-5%1520051.11.220051506Table1.1TheforecastofChinaautomobilemarketrequirementinthefuture15yearsFig1.2TheforecastoftheChinadiscardautomobilegrossuntotheyearof2005719831985140%21000560%70%1001.2.3201993ApingIwata19933-DFeldman1994[4]Li1995T.Suga19968[5]L.laperriere1996[6]Joseph.F.Scheuring[7]HongCZhang1996[8]Rajit1998[9]D.Beasley,R.RMartin1993[10]BerkeleyGreenmfgBMWDFDZ1DFD100%19951993[11][12][13]1.391.410PetriPetri1122.12.1.1[14][15][16][17]a.b.c.DestructiveDisassemblyPartialDestructiveDisassemblyNon-DestructiveDisassemblyDFD&RCompleteDisassemblyPartialDisassemblyTargetDisassembly123122.1.2[18]21BrBtotalClCiCdBtotalBrClCiCd2.12.113Fig2.1Theeconomicandefficiencyofdisassemblyandrecycle2.22.2.1MinMstoMoutMin=Msto+Mout.2.2.2143:2.2.3OpenLoopRecyclingClosed-LoopRecyclingAB2.2.42.22.1152.1Table2.1Thesteategyofproductrecycle2.2//disassemblysorting(cleaning)(refurbishment)(replacement)(reassembly)(testing)62.2Fig2.2Automobilerecyclelevels162.2.52.3EndofLifeProducts17cFig2.3Theprocessofdiscardautomobiledisassembleandreclaim182.2.62.42.32.3.1Fig2.4Materialsandcomponentsconsumedforautomobileproductionanduse193R(ReduceReuseRecycling)2.2[19]2.2Table2.2Thedifferencebetweengreendesignandtraditiondesign2.3.2[20][21]……20(remanufacture)/FT/QCE/RFTQCERKKnowledgeFTQCERK[22]2.5EEnvironment3RKFTQCERFTQCERKFTQCERK,2.3.3DFR(DesignforRecovering&Recycling)2112/DFXVR/RP/RT/……Fig2.5ThedesignmodelofLCDonautomobile2234512()345672.3.4(DesignforDisassembly,DFD)232.6:DFE/3D6Fig2.6AutomobiledesignmodleofDFD&R24:1)2)3)4)2.7Fig2.7DesignrulesofDFD&R252.3.5:CADCADCADCAD26CADCADCAD2.42733.1CE,[23][24][25]PartialModelsTotalProductModel:283.2123.13.1Table3.1Theclassifyingdisass