简介：ＦＲＡＭＥＷＯＲＫＯＦＡＤＩＳＴＲＩＢＵＴＥＤＥＮＧＩＮＥＥＲＩＮＧＤＢＭＳＷａｎｇＴａｏ；ＬｉｎＺｏｎｇｋａｉ；ＧｕｏＹｕｃｈａｉＳＭＯＯＴＨＳＵＲＦＡＣＥＩＮＴＥＲＰＯＬＡＴＩＯＮＯＶＥＲＡＲＢＩＴＲＡＲＹＴＲＩＡＮＧＵＬＡＴＩＯＮＳＢＹＳＵＢＤ...

简介：EngineeringChange(EC)managementforaProductLifecycleManagement(PLM)system,includingECdatamodel,ECevaluationandECimplementationispresented.AmethodofdynamicandparallelECevaluationisproposed,whichbreaksanECevaluationtaskintoseveralsubtasks.Suchsubtaskscanbedynamicallyandsimultaneouslyproceeded,disassembledandcommunicatedbydifferentspecialists,andatthesametimeasetofECobjectsiscreated.ThisapproachprovidesflexibleandeffectiveevaluationoftheEC.TheECimplementationfollowedwillfurtherensurethecompletenessandconsistencyofECdata.

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简介：基于在国际软件确定基准点标准组(ISBSG)仓库包含的数据的实验分析，这篇论文基于工程努力论述软件工程计划持续时间模型。持续时间模型为全部数据集并且为为个人计算机开发的工程的子集被造，中间范围并且大型机平台。持续时间模型也为比努力并且为要求努力的超过400人小时的工程的400人小时要求少数的工程被构造。作为第二个独立变量增加分配资源的最大的数字解释持续时间也被分析的实用性。从在功能的功能的尺寸削尖的工程直接造持续时间模型的机会也被调查。电子增补材料这件物品(doi:10.1007/s11390-007-9051-5)的联机版本contatins增补材料，它对授权用户可得到。

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简介：Basedonlong-timeresearchonvocationalteachingcubetheoryingraphicseducationandanalyzingontheintellectualstructureintheprocessofreadingengineeringdrawing,thegraphicsintellectualthree-dimensionalmodel,whichismadeupof100cubes,isfoundedandtestedinhighervocationalgraphicseducation.Thissystemservesasagoodguidancetothegraphicsteaching.

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简介：ThecurvedsurfaceofballmovementisaconnectingDentpipecommonlyusedinhydraulicengineering.Thecurvedsurfaceposesacomplicatedproblemwithcomputation.Themathematicmodelofthecircularcurvedsurfaceofballmovementinengineeringissetupbyadoptingtheconceptofenvelopecurvedsurface.

简介：thereconstructionoftransitionsurfaceisoneoftimeconsumingactivitiesduringsurfacemodelinginreverseengineering.Yetcurrentlyavailablesoftwareapplicationssufferfromshortcominginprocessingtheconnectionamongfreeformsurfaces.Inthispaper,anewmethodisputforwardcombiningSurfacerwithUnigraphicstoresolvethisproblem:CurvesandsurfacesarefirstconstructedinSurfacer,then,thefinisheddataisimportedintoUnigraphicsbasedonIGESformat.Atlast,thetransitionsurfacecanbereconstructedinUnigraphics.Theapplicationofthismethodintransitionsurfacereconstructionisillustratedbymeansoftwocasestudies,showingtheconnectionbetweenfreeformsurfaces;filletingandroundingamongmultiplesurfaces;transitionsurfacebetweentwosetsofsurfaces.

简介：Reverseengineeringdealingwithimagesistraditionallybasedonimageprocessingandcontourrecognition.Anewmethodispresentedbasedonthecombinationofsectionalslicingwithimagemosaic.Sectionalcontoursofthetargetobjectaregeneratedbycolorfulliquidorlaserscanning,theseimagesfromdifferentviewsarefusedintoasetofcompletecross-sectionalimages,therebythewholepracticalmodelisreconstructedin3Dspace.

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简介：InthepaperthebasicelementsofCADsystemsfromsoftwarepointofviewaredis-cussed.ThecreationandnextthemodificationofCADsystemsneedsspecializedsoftwaretools.InthepapertheideacomputerAidedSoftwareEngineering(CASE)forCADsystemsproductionandpracti-calsoftwarerealizationofsuchasoftwaretoolisconsidered.ThemainelementofthistoolisspecialprogramprovidedforconvenientstorageandmodificationofCADsourceprogram.Inthepaperthesimpleexamplesarepresentedanddiscussed.

简介：Numerousandspecializedwordsaremainobstaclesinimmersionbilingualteachingofengineeringgraphics.Afeasiblesolutiontothisproblemisgivenbyclassifyingnewwordsintothreecategories.Thefearofnewwordsamongstudentsisovercomeandtheeffectofbilingualteachingisgreatlyimproved.

简介：１ＩｎｔｒｏｄｕｃｔｉｏｎＷｉｔｈｔｈｅｇｒｏｗｉｎｇｃｏｍｐｅｔｉｔｉｏｎｉｎｔｈｅｍａｎｕｆａｃｔｕｒｅｉｎｄｕｓｔｒｙ，ｔｈｅｄｅｖｅｌｏｐｉｎｇｐｅｒｉｏｄｏｆｐｒｏｄｕｃｔｉｓｓｈｏｒｔｅｒａｎｄｓｈｏｒｔｅｒ．Ｓｏａｍａｎｕｆａｃｔｕｒｉ...

简介：WiththedeepresearchofknowledgeengineeringandthewidespreadapplicationsofCADtechnology,thejoiningofknowledgeengineeringwithCADisthefocusofadvancedmanufacturing.Anintelligentapproachispresentedforconfiguratingthetypicalstructuralcomponentsofradar.Casebasedreasoning,rulebasedreasoning,geometric,constraintsolvinganddomainontologyaremergedintoacompoundknowledgemodel.Themainframeandworkflowofradartypicalstructuralcomponentdesignsystemareillustrated.Experimentsshowthisapproachisefficientandeffective.

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