中英文文献翻译基于CATIA的汽车改装式升降台数字样机建模及应用研究.docx
- 文档编号:26143153
- 上传时间:2023-06-17
- 格式:DOCX
- 页数:10
- 大小:23.46KB
中英文文献翻译基于CATIA的汽车改装式升降台数字样机建模及应用研究.docx
《中英文文献翻译基于CATIA的汽车改装式升降台数字样机建模及应用研究.docx》由会员分享,可在线阅读,更多相关《中英文文献翻译基于CATIA的汽车改装式升降台数字样机建模及应用研究.docx(10页珍藏版)》请在冰豆网上搜索。
中英文文献翻译基于CATIA的汽车改装式升降台数字样机建模及应用研究
附录
附录A
ModifiedCarLiftingPlatformBasedonCATIAModelingandApplicationofDigitalPrototyping
DescribestheuseofCATIAV5mechanicalpartsiandzero-dimensionalmodeling,virtualassemblyofthebasicprocesscomponentsandsteps,andwormassembly,forexampleindetail.Theeffectofimprovingthemechanicaldesigntoimprovedesignefficiencyandshortenthedesigncycletime,hassomepracticalsignificance
1Overview
CATIAsoftwarefromIBMandDassaultcompanytolaunchhigh-endCAD/CAMsoftware,hasbecometheinternationalaviationindustrypreferreddesignsoftware.Withitsstrongsurfacedesignfeaturesinthemachinery,aircraft,automobile,shipbuildingandotherwidelyuseddesign,CATIAsurfacemodelingcapabilitiesisreflectedinthefeaturesandadvantagesitprovidesaveryrichmodelingtoolstosupporttheusermodelingneeds.Asitsuniquehigh-orderBeziercurveandsurfacefeatures,thenumbercanreach15,canwellmeetspecificindustrydemandingrequirementsofsurfacesmoothness.ApplicationCATlAconstructedsolidmodelcanbedirectlyappliedtootheranalysissoftwareANSYSfiniteelementanalysisCATIAsoftwarewiththree-dimensionalCADsoftwareandotherstandarddatainterfaceforeasydataconversionmodel.
CATIAV5isbasedontheWindowsplatform,andtofullyparametricfeaturemodelingtechnologyasthecorefeature-basedmodelingsoftware,whichisconsistentwiththeWindows-stylemenubar,standardshortcuts,contextualmenus,multi-documentinterface,youcanmakethedifferenceWindowsapplicationstosharedata,OLEintegration,soworkquicklyandefficiently,cansignificantlyreducetrainingtime.CATIApartsassemblyisbasic,butalsothemostadvantagesandfeaturesfunctionmodules,includingthecreationofanassembly,addthespecifiedcomponentsorpartstotheassembly,theassemblyrelationshipbetweencomponentstocreate,moveandlayoutoftheassemblymembers,generatedanexplosionofproductsdiagram,assemblyinterferenceandgapanalysisandothermajorfeatures?
.
2three-dimensionalmodelingbasedonCATIAandassembly
2.1Designsketches
Sketchdesignisthestartingpointofthree-dimensionaldesign,anditsessenceisatwo-dimensionalline,surfacedesign,softwaredesignwithatraditionaltwo-dimensionalfunctions.Parametricdesignofthebasicapproachistostartfromscratchdesign,sizeandgeometricconstraintsimposedbycreatingasketchfeature,thenapplythesize-driventechnologytoautomaticallygeneratepartsofthethree-dimensionalsolidmodel,intheuseoftechnologytogeneratetwo-dimensionalcontoursketchesdonothavetooutlinetheexactsizeoftheinput,theparametersinthefuturetogetthedesignprocess.Thus,duringtheproductdesign,youcanalwaysadjustthedesignsize,withoutaclearearlyinthedesignofthedesignsize,enhancetheeaseofCADsoftware,tobetterachieveauser-friendlydesign,butalsoforthedesignofseriesimprovementofproductsandoriginalproductsandparts"borrowed"areconvenient.
2.2togeneratethree-dimensionalpartblank
CATIAhasastrongthree-dimensionalsolidmodelingfunctionality,theuserplaneinthesketch,afterdrawingtwo-dimensionalgraphics,intothepartdesign(PartDesign)modules,youcanrotate,stretch,lofting,stiffened,andothermethodstogeneratethedraftthree-dimensionalpartstoberough.Constraintscanalsouseparameterizedfunctionstobemodifiedaccordingtoneed.Designerscanchangeforthebodypartblanktoachievethedesignprocessby"drawing"to"design"changes,andCATIAV5providesthree-dimensionalmodelofthespecificfeaturesmakethedesignmoresimilartotheproductionprocess,bettertoachieveacombinationofdesignandprocessing.
2.3completethethree-dimensionalmodeling
CATIAV5providesfeature-baseddesign,willfeatureasadesignelement,thecharacteristicsoftheproductasacombination,throughtheobjectfromtheclasstobeachievedstepbystepdescriptionofthespecificshapeofthedesign.Aftergeneratingtheroughthree-dimensionalpartscanbeusedtodrilling,slotting,shells,chamfer,plusconvexsets,suchasTwithinternalandexternalthreadsonthe"rough"to"processing",thefinalcompletionofmechanicalpartssolidmodeling.
2.4completethevirtualassembly
Virtualassemblyisusingvirtualassemblytechnology,three-dimensionalcomputermodelwillbeassembledtogether,itcanavoidtheapplicationofphysicalprototypes,butalsoforpartsforclearanceandinterferencetesting,reducethesampleerrorrate.Intheproductdesignprocesscanusevarioustechniquessuchasanalysis,evaluation,simulation,andgivefullconsiderationtotheassemblyareasandrelatedproductsduringthevariouspossiblefactors.Productperformanceandfunctionalitytomeettheconditionstoimprovetheproductassemblystructure,thedesignoftheproductnotonlyassembly,andminimizeassemblycostandtotalproductcosts,shortendesigncycles.
CATIA-basedvirtualassemblymodelhasparallel,bottom-upandtop-downapproachtoproductdevelopment,thisarticlefocusesonbottom-updesign.Constructthefirstmoduleinthepartsofpartsofthethree-dimensionalmodel,thencomponentsintheassemblymoduletocreateconstraintsbetweentheposition,orientationrelationships,abouttherelationshipbetweenpartstoquantifytheactualwiththevirtualassemblyprocessbetweenthevariouscomponentsentitieslocationconstraintrelationship.Inthisway,partsofthegeometryisbeingusedintheassemblyprocess,andnotsimplybecopiedtotheassembly,totrulyrealizethepartofthe"virtual"assembly.
CATIAassemblyworkbenchprovidesaflexibleandintuitivetooltodeterminetherelationshipbetweenparts.Workbenchallowsuserstoassemblethecomponentpartsandvarioussub-assembliescombinedtogethertoformthefinalassemblyintheassemblyenvironment,accordingtothedefinedconstraints,partscanbemodified,analysis,andrelocationHJ.CATIAfeatureswithasingledatabase,regardlessofhoweditorseditpartsandcomponentswherethewholeassemblyofpartstomaintaintheconsistencyofassociation,ifyoumodifythecomponents,assembliesthatreferenceitautomaticallyupdated,real-timecomponentsreflectthelatestchange.Virtualassemblysteps:
theassemblyprovidedinCArllAbench,leadersneedtoassemblethepartsandcomponents(CATIAprovidesthemainmethodofinsertingpartsintoparts,intotheproducts,partsandinsertnewcomponentsintoexisting,etc.).Then,theconstraintsonthecomponentsandtheestablishmentofappropriateassemblyrelationship,accordingtotherequirementsofthedifferentpartsoftheassembly,useadifferentconstraintrelations,andfinallygetacompleteassemblymodel.
AndPro/EcomparedtotheassemblyprocessusingCATIAhasautomaticallycreatedtwopartstobeassembledtheirdesignbasispointsofoverlapbetweencomponentstofacilitatethedesigneracleardesignbasisbetweentheassemblyandpartsbetweenthebasedifference.
3DesignExample
Thewormdrive,forexample,theuseofCATIAmodelingandassemblyprocessandmethodsdescribed.
3.1tocreatethree-dimensionalmodelworm
Analysisofthestructureofthewormpart,clearlythemainfeaturesofthestructuretodeterminethemodelingsteps.Byrotatingthewormbody,composedofthealveolarandkeywayparts,thebasiccharacteristicsofarotatingbody.
3.1.1Createthree-dimensionalmodelofthewormpart
(1)indraftmodetodrawshapesaccordingtotheroughshapeofthewormroughsketches,theestablishmentofsizeconstraints,suchassizechanges,chamfer,etc.(ofcourse,alsointheformationofroughchamferaftertheentity).
(2)Inthedesignmode,theuseofrotatingparts(Shaft)tooltogeneratewormblank.
(3)Accordingtotheworm'sparameters,tocalculatethealveolarpitchwormandthewormscrewaccordingtothemodeofcurvesandsurfacesgeneratedawormwrappedaroundthespiral,astheslotscanningwire.
(4)SincetheendofcylindricalwormArchimedesArchimedesspiral,obliqueaxialplanetoastraightline∞],sothewormshaftcanchoosealmostplane,indraftmode,drawatrapezoid(mustbeaclosedcurve),itsdistancefromtheaxisofthebottommarginisjustthewormtoothrootradius,bothsidesoftheedgeandfaceangleof20.(Note:
Thepitchatbothsidesoftheedgedistanceshouldbethepitchcirclespacewidth).
(5)inthepartdesignmodeusingthenarrowslot(Slot)tooltogenerateanalveolar;usethewholearrayoftoolstowormoutofthealveolarprocess.
(6)indraftmodetodrawshapeskeyway,theuseofstretchcutting(Pocket)tooltogeneratekeyslot,tocompletethethree-dimensionalconstructionoftheworm
Mode.
3.1.2createthree-dimensionalmodelwormparts
Analysisofwormpartsofthestructure,clearlyamajorcomponentcharacteristicstodeterminethemodelingsteps.Asthewormgearandringgearteethbythecore2parts,sotheringgearandthetoothshouldbeseparatedfromthecoremodel,andthenassembled.
PartsusingCATIAmodelingplatformprovidedbytheringgearandthewormweregeneratedtoothcore.
3.2partsoftheassembly
3.2.1ImportParts
AssemblyinCATIAprovidestheproductstructureworkbenchtoolbar,useofexistingpartsintothefunctionofthepriorconductivityhasbeendesignedwormandwormparts.
3.2.2theestablishmentofbinding
AspartoftheimportprocessCAITAhasestablishedaworminthewormandtheaxialprofilewidthof1/2ofthefaceoverlapconstraintrelations,haspledgeditsprofileinthewormdriveofthemain(centersection)onthealignment,inTheonlyothertwotodeterminethedirectionoftheconstrain
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 中英文 文献 翻译 基于 CATIA 汽车 改装 升降台 数字 样机 建模 应用 研究