面向飞机钣金数字化制造的知识重用方法研究与应用(I)

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1、西北工业大学博士学位论文面向飞机钣金数字化制造的知识重用方法研究与应用姓名：刘闯申请学位级别：博士专业：管理科学与工程指导教师：孙树栋;王俊彪20060901AbstllctAbstractTheaircraftsheetmetalfon】1ingprocessdetemlinesthatsheetmetaJpansmanu—facturingisknowledge—intensiVe．Howtoreusepast“knowledge”todesignt11e“infor-mation”ofthepans’m卸ufactIlringelementsisc^ti

2、caltodeVelopthetechn0109yofDi百talAircraftSheetmetalpansManuf．actu—ng(DASM)．T11epurposeofthisthesisistosetupknowledgercusemethodinDASMandapplytllismethodtodeVelopDASMtecllll0109yT1lethesisincludes：1．11lel(1lowledge—intellsiVefeaturesoftheAircraftSheetmetalpansManufactur—ing(ASM)proce

3、ssaredescnbed．Thearc“tectIlreofmeDASMsyst伽isbuilt，锄dthesysternen舀ne甜ngmetllodisadoptedtocons仃ucttheg吼eralprobl锄·S01VingmodelinDASM．TheknowledgewhichthemainDASMproblernsrelymainlyontobesolvedis百vell．2．Theconc印tsofknowledgeaIldl【110wlcdgereuscaredefined，andtheknowl-edgereuseprocessisp

4、rescTltedbasedontlleaTlalysisof1(nowledgelifecycle．Thel【Ilowledgereusep—ncipleisaIlalyzeda11dttlef}锄eofhowIedgereusemethodin—volvingobjectmodeljng，knowledgemodeling，knowJcdgeutjlizationandk110wlcdgemaJlagemeTltisestablished．111eeIlviro脚eIlt，meconstitutionofcngineeringdesi印soRwareand

5、DASMworkspaceofapplyingknowledgereusemethodarePrcsented．3．Them锄ufac嘶ng—orientedmulti-statemodelforsheetmetalpansis如rther咖died．nlemodelstnlctureisbuiltont11ebasisofthe“er盯chyofstate，featIlre，ele—mema11ddata．ThedefinitionorderofthemodelstatcsisexcITlplified．Tree_basedstmcturefbaturemo

6、delisbuilt．Acodillgsch锄ewithnexibilityproVidingadequatedescriptionforaircraf【sheetmetalpanispres∞ted．111eXMLschemaforsheetmetalpansbasedonstnlcturcfeatureissetuptor印reselltthegeometricinfbnTlation．Howtousemulti—statemodeltocomposeASMl(110wledgercusemethodisaJlalyZcd．4．Theontology-ba

7、sedsystclllaticASMknowledgemodelingmeIhodisproposed．ASMdomainont010百esareconstrIlcted，andonthebaSjsofthat，t11eknowledgelayermodelisestablished丘Dmthetopdomamtobasictype．b10wledgememorynetises—Cablishedtorepresenttherelations锄onginf0九IlationelclllelltsbaSedonknowledge，infomlationaIldd

8、atalayeLTheknowledg