团结奋斗开拓创新建设制造强国3

:1004-132Ò(2002)23-1989-08332002,,,,,,,,,,,,11.1,,,,,(1),2001,37613.1,39.21%,77.61%;4398.17,30%27%50,195219801414%,1980198812.65%,,,19521980612%198019989.94%,38(2)20,,,,,,,,,,,(3),20018083,90.13%,1111%989120012398,90%,(4),,,,,,,,,,1.2,,,:(1)8;12500;;3.51.2;170MW11.3m;302MW8m;300MW;500kV;250t1450mm1420mm1550mm;1.2t;50t;6000m;;;;;;;60;;;;,(2),,1998,VCDDVD,(3);;,,,??1.3,,;,;,;,;;,1.42001,29,3:,30.58%;(),33.93%;,34.16%,1996,4119%43163%4614%39163%37133%4513%,09911323200212,,,,,,,,,,,1.5,,,,,:(1)57%,,,,(2),2000,18,19903,3,(3),,,,,,1020,,,,,,,,,2,,,:,,,2.1?(1),,(2),RSGISGPS200,:18,,,;1920,1991,;,,;,,,,,;1959,;;20,,;;,,,2.2,,,(1);(2);(3),,,;(4),,2.3,,,,,,,747,,,747,,,5:(1)(),,(2),,10(DFMöA),(3),,(4)(CIMS)29911323200212(5),,,,,ERP,,,,,,,3,1020:;;,;,;;,;,,;,,,,,,,,,,3.1,,,,,,3.2,,,,,:(1),,,,,,,,,,,,,,,,,,,,,,,,,3991(2),,,,,,,,,,,,33183000,(3),!,,,,,,,(4),,,,,,,,,,3.3,,,,,3.4,,:,,;,,,;,,;,;,,,,,,,,,,49911323200212,3.52070,,,,,,,,,,,,,,,6:(1),,,,,,,(2),,,;,,(3),,,,,,,,,,,,,,(4),,,,,,21,,,,,(5),,,5991,,,,,,,,(6),,,,,,,,,,,,4,,,,,,,,,,,,,,,,,,,,,,,,,,,!()()200211,200212620,5291300:;;;;,46:100823:01068595317,68595315:[e-mail]@cmes.org()69911323200212CXXXVISSN1004-132XCHINAMECHANICALENGINEERING(TransactionsofCMES)Vol.13,No.23,2002thefirsthalfofDecemberSemimonthly(SerialNo.119)EditedandPublishedby:CHINAMECHANICALENGINEERINGMagazineOfficeAdd:No.14ShipailingWuchangWuhanChinaDistributer:ChinaInternationalBookTradingCorporation(P.O.box399,Beijing)Code:4163-SMMAINTOPICS,ABSTRACTS&KEYWORDSManufacturingIndustry&ModernizationSONGJianp198121988CommittingtotheCommonCausetoBuildaManufactur-ingGiantbyInnovationLUYongxiangp198921996ResearchonModelofExtrudingFilamentandCompensa-tionMethodofPrototypeDimensionsinFDMJIAZhenyuan(DalianUniversityofTechnology,Dalian,China)ZOUGuolinGUODongmingWANGDongx2ingp199722000Abstract:Onthebasisofresearchonextrudedfila2mentsectionshape,acompensationmodelofidealcon2tourlineisestablished,andanewtechniqueforcompen2satinginneroroutercontourlineoftheworkpieceisputforward,whichshoulddependontherealwidthofex2trudedfilament(insteadofnozzleradius)andtherealdi2mensionalshrinkageoftheworkpiece.Theexperimental2lyvalidatedresultsprovethatthecompensationmodelofidealcontourlineandthecompensationtechniqueforcon2tourlineofworkpiecearecorrectandfeasible.Keywords:rapidprototypingmanufacturing(RPM)fuseddepositionmodeling(FDM)compensationextrusionflowratematerialshrinkageStudyonJettingProcessinPCMTechniqueXUDan(TsinghuaUniversity,Beijing,China)YANYongnianYANGWeidongp200122004Abstract:Inordertoimprovethebuildingprecisionanddecreasethesizeofagglomerationunitbody,thefac2torsaffectingonjettingprocessareanalyzed.Thework2ingprincipleofnozzleisdiscussedandthedesignofnozzleisstudiedquantitatively.Non-stationaryprocessofliq2uidinfiltrationinthespacebetweenparticlesismathe2maticallyanalyzedandmodeled.Thestructureandspeeddistributionofeffluxionisstudied,thusanoptimaldis2tanceofeffluxionflyingisgiven.Thelaginjettingpro2cessisanalyzedindetail,thusthematchingrelationshipbetweenthestartandthestopofnozzleandscanningmovementissolved.Thegeometricaccuracyofjettingprocessisimproved.Keywords:jettingprocessagglomerationunitbodynozzleinfiltrationprocessmatchingcon2trolOntheTangentialPointTracingGrindingforaCrankshaftPartZHOUZhixiong(HunanUniversity,Changsha,China)LUOHongpingMIHaiqingTAOJianbop200422006,2056Abstract:Intangentialpointtracinggrindingprocessofacrankshaftparts,thecharacteristicsofthegrindingpointsonthecrankpinareanalyzed.Basedontheseanaly2ses,amathematicalmodeloftwouniversaldrivingshaftsisestablishedaccordingtotheprincipleofconstantre2movalrateofgrinding.ThemachiningerrorscausedbythedifferentsizesbetweentheactualgrindingwheelandthestandardoneandtheNCinterpolatingerrorsaredis2cussedaswell.Keywords:crankshafttangentialpointtracinggrindingconstantremovalrateofgrindingma2chiningerrorNewTechnologytoOptimizeStateofSheetMetalForm-ingLIZan(HuazhongUniversityofScience&Tech2nology,Wuhan,China)DONGXianghuaiLIZhigangp200722010Abstract:Todealwiththeproblemsinpresentstampingprocessesofsomecomplicatedsheetmetalpartsandtosatisfytheneedforfuturedevelopmentofsheetmetalforming,anideatooptimizethestateofsheetmetalformingisproposed,andanewprocessmeasureisde2signedinthispaper.Themeasurecanefficientlydecreasemetalflowresistanceintheflangeregion,wheretheflowresistanceisofmaximum,andcannotincreasethetrendofwrinkling,thenoptimizethestateofsheetmetalform2ing.Theavailabilityofthemeasureisverifiedtheoretical2lybyfiniteelementsimulation,anditsmechanismisanalysed.Keywords:stateofsheetmetalformingopti2mizationflowresistanceprocessmeasureResearchonFatigueStrengthReliabilityfortheCycloidBallPlanetaryTransmissionBasedonFuzzyTheoryANZijun(YanshanUniversity,qinhuangdao,China)QUZhigangWANGGuangxinp201022012Abstract:Basedonfuzzytheoryandmethodofreli2abilitydesign,afuzzyreliabilitymathematicmodelofthecycloidballplanetarytransmissionisestablishedinthisMAINTOPICS,ABSTRACTS&KEYWORDS