Tutorial for WorkBench几何建模Word格式文档下载.docx

Tutorial for WorkBench几何建模Word格式文档下载.docx

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AlignitinthexpointingoutdirectionbyclickingontheX

ChooseSketchandthenopenthesettings

ByclickingfirstonSketchingandthen,whenmenuopensabove,clickingonsettings.

Choose16minorsteppermajorandthenopenthegridandchecktheboxesfor2Dand

Snap

Nowthatthesearechecked,expandthegridbyrightclickingheretoexposethe+markanddragaboxaroundtheregiontobezoomed.Whenyourelease…theminordivisionsarevisibleinthebox

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Choosepolyline

Movecursortoartworkareaandobserveitbecomesapencil.Drawtheobject（actuallyyouaremakingatwoDsketch）andwhenyoufinish,rightclickandselectclosedend.

Nowthepicturechangesfromadarksetoflinestothislighteroutline.ClickontheballtoplaceyourselfinISOviewandontheModelingbuttontoclosethesketchingmenuandreturntothetreediagram.

Yourwindowshouldnowlooklikethis.

HittheExtrudebutton

Theobjectextrudes

Thelengthis12inches.Youcanchangethisbytypinginanewvalueandthelengthupdates.Whenyouarehappywiththeextrusion,hitgeneratetocreatea3Dsolid.

Herewehavechangedto10inchesandGenerated.Notethecoloroftheobject.Wecanstillchangethedimensionsandthenhitgenerateanditwillrecreatetheobjectinthenewlength.

Notehowitsayswehaveonebodyandonepart.

Ifwewanttocreateanotherpartwithoutinteractingwiththisone,wecan“Freeze”thispartbyselectingTools/Freeze

Notehowthefrozenpartissemitransparentandtheadditionofafreezeoperationisinsertedinthetreediagramwhichshowswehaveonepartmadeofonebody.

Wecannowmakeothersketchesandextrudeandgeneratetocreateallthepieces.Oncewehaveanobjectwelike,wecanmirroritormoveitbygeneratingadditionalplanes.

Ihavefoundthatthestatedshiftdirectionsfortheplanegenrationsareincorrect.ThatistellingtheshifttobeintheXdirectionwhenintheYZplanedoesnotnecessarilyproducetheXshift.Theeffectyougetdependsontheplaneyouareinwhenyoudefineanewplane.Thisseemstorepresentaprogrammingerrorthatwasnotfoundyet.Ignoringthis,andusingthe“empiricallyfound”methodofgeneratingplanesletsyoucreateseveralobjectssuchassupports.

PicktheXZplaneandthenhitthenewplaneICON

Notehowthecolorsoftheaxisthatshowupforthenewaxisdonotmatchtheorientationofthecoordinatesystem.Usethecolortodeterminewhichshift.Hitthetransformandwhenthepulldownoccurs,choose“BLUE”whichcorrespondstoOFFSETZ.Enter–4tocausetheplanetoshiftdownby4inchesasshowninthesketch.

Hitgeneratetocreatethenewplane4whichisparalleltotheXZplanebut4inchesdown.

Gotothesketchingmode,setthegridtobe2DandSnapandset16asthedivisionsasbefore….Drawthecrosssectionofthepiecesthatwillmakeupthelegs.

Alignwith“Y”normalbyclickingthe“Y”intheTriad…itwilllookliketheabove.

Nowrightclickanddragaboxtoexpandtheview

Nowmakethetwosketches.Besuretostay1/16awayfromedgessothesystemdoesnotbondtogetherlaterwhenthedrawingisimportedtothesimulation.Ihavefoundthatintimateproximitybondsthepartseveniftheyare“frozen”.

Drawonefirstandchooseclosedendbyrightclickingatthisstage.

Nowgotoisoviewbyclickingballandthenextruding5.5inchesthengenerating.

Notethatbothformed.Nowhitgenrate.

Nowthereare3partsandthreebodies.

ReadthehelpunderMirroroperationsandcreatetheYZplaneatthecenterofthebridge.Selectthetwoverticalcolumnsandmirrorthemintoexistance.Thiscompletesthegeometry.

Thisshowstheplanethatwascreatedbymoving…notyetgeneratedthatisthenextstep.

Nowgotothecreatemenuandchoosebodyoperation

ThedefaultoperationisMIRROR.Choosethetwobodiesbyclickingonthem.Holdthecontroldowntoclickthesecondone.NotethecursorlookslikeafilledbrickindicatingitisintheBODYselectionmode.Whentheyarebothselected.Hit“APPLY”

Itrespondsbychangingthecolorandshowing2bodiesareselected.

Nowselecttheplaneyoujustcreated,Plane5.Clickonthe“notselected”anditwillchangeto“applycancel”.

ThenclickonthePlane5iconinthetreemenuabove.Whenithighlights,gobackandhitapply.Thescreenwillthenlooklikethis.

Now,allthatremainsisto“generate”.Doitnow.

Nowwehave5partsand5bodies.

Nextstepistospotweld.Thisiswillsimulateourrivets.Thisisdonebyenteringspotweldpoints.Clickheretostarttheprocess.Therearethreetypesofpoints.Pointsforspotwelds,pointsforloading,andconstructionpoints.YoucanapplyBCandLoadstothe“pointsforloading”.Thespotweldpointswillautomaticallytrytoweldtonearbysurfaces.Itcreateswhatisknownasacontact/targetpairofnodes.Thesewillshowupinthetreediagramlater.Letsputinaspotweld.Itmaybehelpfultoturnoffsomeofthepiecesby“hidingthem”.Butwewillnotneedto

PickaBASEFACEbyclickingit.Choosethecorrectonefromtheoptions.Whenitishighlightedinthepicture,hitAPPLY

Nextclickonthe“0”totherightofguideedges.

ItturnstoAPPLY-CANCEL.Nowclickontheguideedge.Readthehelponspotweldstobetterunderstandthisandthehelponplacingpoints

Noticehowthecursorhasshiftedtoedgemode…theboxwiththeedgedarkened.Onceitisselected（thisedgewheretheblackarrowis）…hitAPPLY.

Seehowitishighlighted…Thenhittheapply

Nowenterthedata0.5,0.25,0.1,and2forsigma,edge,omega,andN.Thiswillcreatetwowelds,0.5inches0.25inchesfromtheguideedgeand0.5fromthefirstsideand0.1inchesfromthesecondside.

Nowhitgeneratetocreatethewelds.

Itlookslikenothinghappenedbutrolltheslidertoseethebottomwhichshowstwopointsgenerated.Furtherdownitshowsmoreinfo.

Nowitshowsthematesgeneratedtoo….

ClickonthePOINT1tolightthemup.Spotweldsareshownasthreecircles.rightclickandenlargetoseethem.

Inthesimulationthesepointswillbejoinedbyweldmaterialsimulatedbybeamelements.Nowcreatetheweldsattheother3places.Whenthisisdone,clickonprojectandchoose“newsimulation”toportthegeometrytothesimulationengine.Nowitisjustamatterofaddingtheloads.

Ifyouwanttoloadinthecenter,youwillneedtoaddsomeloadingpoints,usingthesamemethodasforspotweldsbutinstead,clickthewordspotweldandchangeittoPOINTLOAD.Placeabout5or10pointloadpointsonthetopcentertorepresenttheloadingbar.

Yourarenowreadytosimulateanyofyourdesigns.Happymodeling.

Dr.Q.