4-汽车专业英语课件-汽车设计制造部分-section 4汽车专业英语2版ppt课件--201802271--12 1-2 auto design process CAD VR

Chapter12AutomotiveDesign,12.1AutomotiveDesignProcess汽车设计过程,学习内容,本次课学习内容、目标和重点难点,学习目标,难点重点,AutomotiveDesigndesignprocessStyling、CAD、VR,1.掌握汽车造型设计的各个阶段2.了解计算机辅助设计和虚拟现实技术2.较熟练地翻译课文,1.重点：长句翻译方法；相关术语的记忆2.难点：长句翻译,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess12.2ComputerAidedDesign（CAD）andVirtualReality（VR）,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,NewWords,Chapter12AutomotiveManufacturing12.1AutomotiveDesignProcess,NewWords,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,NewWords,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,NewWords,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,WhatisautomotiveDesign?Simply,itistheaestheticcultivationofeveryelementofanautomobilethatisvisibletoaconsumer.Historically,thetypicalmonikerforautomotiveDesignwasstyling.“TheautomotiveDesignprocessisbroadlysimilaracrossalloftheworldsautomakers.Typically,thestagesoftheDesignprocessaretheoneswedetailhere:joinedandasdefectfreeaspossible.,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,Stage1-EarlyspecificationItisrareforacardesigntooriginatesolelyinadesignstudio.Infact,vehicledevelopmentusuallybeginswithaseriesofstrategicmeetingscomprisingamultidisciplinaryteamfromdepartmentsincludingdesign,marketing,andengineering,allofwhomestablishparameters-realandconceptual-ofhowtheDesigndevelopmentprocesswilladvanceandwhatthetimeframewillbe.Duringthisperiodadesignbriefiscreated,allowingtheDesignprocesstobegin.Vehicletype,powertrain,materials,customeraudience,productionconsiderations,andfinalvehiclepricemayallbeconsidered.,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,Stage2:GenerationofearlyconceptsketchesUsuallyadesignbosswillencouragesomeorallofhisdesignerstogenerateconceptdesignsinspiredbythemeandmoodboardsthatcontextualisethelifestyleandproductsegmentcriteriaofthevehicle.Thesemoodandthemeboardsareusuallygeneratedinearlierplanningmeetings.ThemeandmoodboardsmayfocusonelementsliketheemotionsthatthevehicleDesignshouldevoke,thelifestylecontextforthevehicle,athemethatsuggestsevolution.Theyalsomayreferenceoneormoreexistingorhistoricvehicles,benchmarkacompetitorvehicleinordertocreatearesponsetoit,andmayevenlookatanentirelyfuturisticcontext.,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,Oncethemesareagreed,anintenseperiodofearlysketchingbegins.Sketchingisaquickandeffectivewaytovisualiselargenumbersofideas.Thoughthisperiodishighlycompetitive,designerstypicallyencourageandenhanceoneanothersdesignsforthegreatergood.Oftenitisthecasethatdesignsthatmaketheshortlistmayhavebeenworkedonbyanumberofdesignersinconcert.,Table12-1Variousjoiningmethodsusedwithsheetmetalsintheautomotiveindustry,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,Stage3:DesignshortlistOncetheDesignteamhasdecideduponitsfavouritesketches,moresketchesarethencreatedfromthisshortlistofpossibleDesigns.Designersthathaventhadtheirdesignschosenwillberedeployedontheshortlisteddesignsandwillhelptogeneratemoresketchesshowingdifferentexteriorandsometimesinteriorviewpointsordetailsofavehicle.Atthispointthereisoftenafurtherreviewbymanagement,thoughthiswilldependhowmanydesignswerebeingworkedoninthefirstshortlist.Itmaybethatmanagementwilldecidetoshortlistfurtheroritmaybethatmanagementdecidestogeneratecomputer-aideddesign(CAD)modelsusingsoftwaresuchasAliasAutodesk.,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,Stage4:FinalshortlistandclayanddigitalmodelingOncethelastfewdesignsarechosen,three-dimensionalvirtualorclaymodeldevelopmentcanbegin.DigitalmodellingusingCADoffersthepossibilitytoevaluateDesignsusingdifferentvirtualenvironmentsandtoexplorechangesquickly,andthepossibilitiesforvisualisationindifferentenvironments-albeitvirtualones-arenumerous.,Ontheotherhand,themoretraditionalclaymodelhasaphysicalformthatcannotbebetteredintermsofappreciatingactualrealworldsizeandshape.Inthecaseofa1:1scalemodel,itcanbeperceivedandunderstoodatactualsize.Claysareoftenrolledoutsideintothedaylighttobetterunderstandsurfaces,lines,andcreasesinnaturallight.Claymodelsalsooffertheadvantageofdesignersbeingabletophysicallywalkaroundthemtobetterappreciatedifferentviewpointsandperceives.Designdirectorsmayprefereithermethodor,indeed,utilizeboth-whichisoften,thoughnetexclusively,thecase.ItisveryunusualforafullsizeclaymodelnottobeproducedfromCADdataatthispoint.,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,Stage5:InteriordesignTheinteriordesignofavehiclebeginsassoonaspossibleaftertheexteriorworkhasbegun,usuallyaroundthreemonthslater.Theinteriordesignofacarismorecomplex,incorporatingafarlargernumberofsurfacesandmaterialconstraintsandinvolvesdesignersworkingperceiveinconcertwithcolourandtrimspecialists.Thecolourandtrimteamresearchandcreatemoodboardsandcolour,material,andeventexturalpalettesfortheinteriordesigninlinewiththelifestyleandperceivedcustomerrequirements,aswellastakingintoconsiderationcost,weight,andsafetyrestrictions.Whenthefinalinteriordesignischosen,3Ddigitalmodellingcanbegintogeneratemathematicaldataforthefinalmodel/prototypebuild.,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,Stage6/7:Finalmodel/prototypebuildOncemathematicaldataisfinalised,theprototypecomponentpartscanbeproducedaheadoftheconstructionofavehicleprototype.Thiscanoftenevenmeanaworkingprototype,whichmaybeassembledintheDesignstudioorbuiltelsewherebyaspecialistsupplier.,Chapter12AutomotiveDesign12.1AutomotiveDesignProcess,Stage8:FeasibilityOncemanagementapprovesofafinaldesign,thefull-sizeclayisscannedtocreateanew3Ddigitalmodelandgeneratefinaldatatobeusedbyengineeringandmanufacturingoperationstocreatefinalcomponentsandtoolingparts.Stage9:FinalapprovalFinalapprovalfortheDesignandthefinalgreenlightisgivenbymanagementforproductionofthevehicleDesign.,Chapter12AutomotiveDesign12.2ComputerAidedDesign（CAD）andVirtualReality（VR）,NewWordsandPhrases,Chapter12AutomotiveDesign12.2ComputerAidedDesign（CAD）andVirtualReality（VR）,Chapter12AutomotiveDesign12.2ComputerAidedDesign（CAD）andVirtualReality（VR）,ComputerAidedDesign（CAD）Whilegoodsketchingtechniquesremainthefoundationofanycardesign,thesedaysthesuccessfultransformationofinitialsketchesintothedigitaldomainhasbecomecriticaltothemoderncardesignprocess.Theuseofdigitaldesigntechniqueshasrevolutionisedthecarindustrybecauseitenablesdesignerstocreatedigitalprototypesoffutureconceptandproductionvehicles,visualisethemindifferentenvironments,andeveninteractwiththemwithouteverhavingtoundertakeacostlyandtime-consumingmodel-buildingprocess.Whatsmore,thesedigitalprototypescanalsobeutilisedtogenerateengineeringdatatobeused,ultimately,inthecreationofproductiontoolsformanufacturing.Thismeanscarmanufacturerscanexploreacompleteproductinavirtualworldbeforeitisbuiltforreal.,Chapter12AutomotiveDesign12.2ComputerAidedDesign（CAD）andVirtualReality（VR）,ComputerAidedDesign(CAD)softwarecanbeusedatanumberofkeystagesinthedesigndevelopmentprocess-creation,validation,optimisationanddesignmanagement-fromtheconceptualphasethroughtothemanufacturingprocess.Byusingadigitalprototype,manufacturerscanvisualiseandsimulatethereal-worldperformanceofthedesignwithlessrelianceoncostlyandvulnerablephysicalprototypes.Beforesuchtechnologyexisted,modellerswouldbuildmodelsfrom3Dsketches.Thisprocessisstillusedinthecarindustrytodaybutdigitalprototypingtechniqueshavereducedtheneedtomakeasmanymodelsasbefore.Modelsoftenrequiretime-consumingreworkingtoincorporatesubsequentdesignchangesand,thankstodigitalmodelling,someofthisreworkingofdesignshasbeenreduced.,Chapter12AutomotiveDesign12.2ComputerAidedDesign（CAD）andVirtualReality（VR）,Theuseofdigitaltechniquesblendsthecreativeartistryofdesignwiththecold,hardefficienciesofmathematicalcomputerengineeringdata.Thisoffersanumberofadvantages：theprocessisquicker,allowingvehiclestobebroughttomarketwithshorterleadtimes,thussavingman-hoursandexpense.Second,changestothedesign-andtheresultingdata-canbeundertakenquickly.Similarly,alargernumberofpotentialdesignscanbeexploredvirtuallybeforesignoffofasuccessfuldesign,allowingamuchgreaterfreedomforcreativeexplorationwhilealsoincreasingdesignproductivity.,Chapter12AutomotiveDesign12.2ComputerAidedDesign（CAD）andVirtualReality（VR）,Thesetoolsarealsohighlyusefulintermsofworkflow.Todayscardesignprocessiscomplexandmultifaceted.Forexample,itisnotunusualforanexteriordesigntobedoneinCaliforniawhileaninteriorforthesamevehicleisdoneinFrankfurt.Digitaldesignallowsteamstosharedesignsforreviewastheydevelop.ThemostpopularCADsoftwarepackagesareAdobePhotoshopandAutodesksAliasAutomotive,whichareusedbythemajorityofautomotivemanufacturersworldwide.Theycanbeusedtodesignandvisualisefull-scaleautomotiveprojectsfrominitialconceptsketchestoClass-A(visibletothecustomer)surfacing.,Chapter12AutomotiveDesign12.2ComputerAidedDesign（CAD）andVirtualReality（VR）,Hand-drawnsketchescanbeimportedtoAutodeskAliasAutomotive,wherethedesignandformcanbedefinedfromtheinitialconceptsketchesthroughtoClass-Asurfacing.Alternatively,sketchescanbecreateddigitallyonacomputerusingsoftwaresuchasAutodeskSketchbookProwithadigitisedpentabletsuchasaWacomtablet.Usingsoftwaresuchasthis,designerscansketchentirelydigitallyiftheysowish,withouthavingtoswitchbetweenpenandPC.VirtualmodellerscantakeadesignandmodelitusingAliasSurfacesoftwarewhichallowsthe3Dmodellingofconceptmodelsusingscanneddata-suchasfromafull-sizeclay-tocreatehigh-qualityClass-Asurfaces.,Chapter12AutomotiveDesign12.2ComputerAidedDesign（CAD）andVirtualReality（VR）,VirtualReality（VR）Thebestwaytounderstandhowanew-developedvehicleanditspartswilllook,fittogetherandbebuiltandservicedisthroughafull-scaleprototype.Fashioningaprototype,however,oftenistooslow,tooexpensiveorcompletelyimpracticalearlyinthedevelopmentprocesswhensomanydecisionsremaininflux.ThatsonereasonVirtualRealityandAugmentedRealitytechnologiesoftenshorthandedtoVRandARareemergingasimmenselyusefuldevelopmenttools.,Chapter12AutomotiveDesign12.2ComputerAidedDesign（CAD）andVirtualReality（VR）,Usingthesetechnologieshelpsinthedecision-makingprocess.Youareabletoquicklymockupdigitallyandin3Dwhatthephysicalproductwilllookliketwoyearslater.CreatingaVRprototypetakeshoursormaybedayscomparedtoweeksormonthsforaphysicalprototype.AlthoughCADrenderingsaregood