Hypermesh 全自動(dòng)的幾何清理和網(wǎng)格劃分

HyperMeshIntroduction:StartingHyperMeshOnPC:Start>Programs>AltairHyperWorks>AltairHyperMeshShortcuticonsGoto<installdirectory>\hm\bin\Right-clickhmopengl.exe>createshortcutNewshortcutcanberenamed,draganddropped,etc.Windows2000,XP,Vistaetc.cancreateshortcutsfromtheStartmenuiconsOnUNIX:Attheprompt,type<installdirectory>/scripts/hmCansetupanaliasHyperMeshIntroduction:StartingDirectoryBydefault,HyperMeshusesthe“startdirectory”forfilesReadsconfigurationfiles(hm.mac,hmmenu.set,etc.)Writeshistory(command.cmf)Open/saveHyperMeshmodel,FEdata,andgeometrydatafilesStartdirectorydeterminedby:OnPC,specifiedbytheprogram’siconRightclicktheiconGotoPropertiesGototheShortcuttabApathisspecifiedforStartIn:OnUNIX:StartdirectoryisthedirectorywhereyoutypedthecommandtorunHyperMeshIfconfigurationfilesarenotfoundinthestartdirectory,HyperMeshwillthenlookintheuser’s“home”directoryHyperMeshIntroduction:TheUserInterfaceGraphicsarea–displaysthemodelToolbar–GivesaccesstocommonlyusedtoolsviaiconsPullDownMenu–placesfunctionalityintogroups,accessibleviapulldownsMenuPages–dividesthemainmenuintogroupsbasedonfunctionMainMenu–contains“panels”groupedincolumnsPanels–menuitems/functionsforinteractingwithHyperMeshSub-panels–dividespanelintosimilartasksrelatedtopanel’smainfunctionCommandWindow–letstheusertypeinandexecutetclcommandsAvailablethroughtheViewdropdownmenu(turnedoffbydefault)TabArea–containsthefollowingtabs:Solver,Model,Utility,Include,Import,Export,Connector,EntityState,etc.StatusBar–showsstatusofoperationsbeingperformedIndicatesthe“current”Includefile,ComponentCollector,andLoadCollectorHyperMeshIntroduction:TheUserInterfaceTabArea:UtilityMenuModelBrowserMaskByConfigEtc.ToolbarsPanelMenuPagesPullDownMenusGraphicsAreaMainMenuStatusBarHyperMeshIntroduction:OnlineHelpHelp

pulldown

>HyperMesh,OptiStructandBatchMesherIfaccessedwhileonmainmenu,helpwillopenthecontentsIfaccessedwhileinapanel,helpwillopendirectlytothehelpforthatpanelTypesofinformation:HowtouseindividualfunctionsNotesoninterfacingHyperMeshwithexternaldatatypesTutorialsProgrammingguidesOrganizedbyproductFileOperations:TheFilePull-downMenuOpen…:LoadsaHyperMeshfileintocurrent

sessionReplacesthemodelincurrentHyperMeshsessionSave:SavesthemodelincurrentHyperMeshsessionFilebrowserpromptsfordirectoryandfilenameifonedoesn’texistSaveAs…:Opensfilebrowsertospecifydirectoryandnametosavecurrent

sessionImport:Merges/combinesfileswiththemodelinthecurrentHyperMeshsessionVarioustypesoffiles:HyperMesh,geometry(IGES,Step,etc.),finiteelementdata(OptiStruct,Radioss,Nastran,Abaqus,Ansys,LS-Dyna,etc.)OpenstheImportbrowserExport:WritesdataincurrentHyperMeshsessiontonon-HyperMeshfiles

typesIGES,OptiStruct,Radioss,etc.OpenstheExportbrowserallowingspecificationofdirectoryandnameRecentFiles:AlistingofHyperMeshfilesthathavebeenworkedonpreviouslyLoadsthefileandreplacesthemodelinthecurrentsessionRecentImports:AlistingoffilespreviouslyloadedintoHyperMeshviaImportFileOperations:PanelsManypanelsinHyperMeshusefileoperations

hmfile:OpensandsavesHyperMeshfilesimport:MergesfileswiththecurrentHyperMeshsessionexport:WritesoutdatatypesotherthanHyperMeshfilesFileoperationswithinHypermeshMostdefaulttothestartdirectoryCanuseCtrl+C,Crtl+X,andCtrl+Vtocopy,cut,andpasteintothefieldsGeneralterminology:Open:LoadsafileintoHyperMeshreplacingthecurrentsessionSave:SavesthecurrentsessioncontentstothefilenamespecifiedImport:LoadsafileintoHyperMesh,mergingwiththecurrentcontentsExport:SavesdatatothefilenamespecifiedGenerallyreferstofiletypesotherthanaHyperMeshbinaryfilePanels:GeneralLayoutPanelsoftenhavesub-panelsAccessedbyradiobuttonsontheleftsideofthepanelPanelsgenerallyworkfromlefttorightExample:Project/toplanesub-panel1)Whattodo:Pickasub-panelforthefunctiontobeused2)Whattodoitto:Selectentitiesthatwillbeaffected3)Howtodoit:Giveparametersthatdefinehowthefunctionwillbeexecuted4)Dotheaction:ExecutethefunctionPanels:GeneralLayoutSomesub-panelsareorganizedincolumnsEachcolumnisadifferentmethodWorkfromtoptobottomintherelevantcolumnExample:surfaceedit:trimwithsurfs/planesub-panel1)Whattodo:Pickasub-panelforthefunctiontobeused3)Whattodoitto:Selectentitiesthatwillbeaffected4)Howtodoit:Giveparametersthatdefinehowthefunctionwillbeexecuted5)Dotheaction:Executethefunction2)Methodtouse:WorkintheappropriatecolumnPanels:OverviewPanelsorganizeandcontrolfunctionalityEachpanelfocusesonaspecifictypeoffunctionMayhavesub-panelswhicharerelatedtothepanel’sfocusContainthecontrolsneededtooperatethefunctionShortcutsCommonlyusedpanelscanbeaccessviathekeyboardfunctionkeys(F1–F12)Actinan“interruptmode”ifyouareinapanelCanreturntothepanelyouwereinSelectionsmadeinthatpanelarerememberedHelpforPanelsWhileinapanel,accessinghelpprovidesthehelpforthatpanelPanels:BasicControlsSwitches–Allowsachoiceofseveraloptionsvisapop-upmenuToggles–Allowsachoicebetween2optionsNopop-up;buttonlabelsimplychangesTextinputfields–OperateliketextfieldsinmostprogramsCanuseCtrl+CandCtrl+VtocopyandpastebetweenfieldsDoubleclickingonatextfieldthatrequiresnumbersaccessesthecalculatorUses“reversenotation”Example:1+1=21<Enter>1+insteadof1+1=Panels:SelectionEntityselectorsControlwhatandhowentitiesareselectedforafunctionResetDeselectsallentitiesfortheselectorCyanborderIndicatestheselectorisactive(therecanonlybe1activeselector)Clickingtheentitytypebuttonwhenitisactiveaccessesthe“extendedselectionmenu”EntityTypeSwitchChangeswhattypeofentityisbeingselectedEntityTypeButtonShowsthetypeofentitycurrentlybeingselectedPanels:OverviewSelectentitieswithawindowusingShift+mouseLeftmousedrag–selectentitiesRightmousedrag–unselectentitiesLeftclick–changewindowshapeRectangleInsideRectangleOutsidePolygonInsidePolygonOutsideEntitiesareselectedwhenmousebuttonisreleasedPanels:ExtendedSelectionMenuClickanactiveselectortoaccesstheextendedmenuselectionTheextendedmenuselectionoffersMethodsforselectingmanyentitiesatonceToolsformodifyinganexistingselectionSaveanexistingselectionandretrieveitinanypanelMultipleextendedselectionmethodscanbeusedonaselectionAllowsyoutoeasilyselectexactlywhatyouwantPanels:DirectionSelectionUsedforinputofdirectionsorplanesforagivenfunctionPlanescanbeselectedfromavector(normaltothevector)Directionscanbeselectedfromaplane(normaltotheplane)ResetDeselectstheselectednodesCurrentDirection/PlaneShowsaselectedaxisorinputsforselectingentitiestodefineadirection/planeDirectionSwitchOptionsforwhatdirectionisselectedBaseSelectanodetopositionaselectedplaneEditDoubleclicktoaccessandentercoordinatesforN1,N2,N3andBase.Panels:DirectionSelection:N1,N2,N3N1,N2,N3directionoptionallowsnodestobeselectedtodefineeitheradirectionoraplaneSelect2nodestodefineadirection(onlyN1andN2)Select3nodestodefineaplane(N1,N2,andN3)N1N2PlanedefinedbyN1,N2,N3N1N2N3DirectionisnormaltoplanePositivedirectionisby“righthandrule”Panels:ExecutionActionbuttonsGreenbuttononrighthandsideofthepanelExecutethe(sub-)panel’sfunctionalityRapidmenusMiddlemouseclicktoexecuteanactionbuttonborderedinblackAlwaystheactionbuttonatthetopofthelistReducesmousetravelneededtoperformfunctionsReject“Localundo”–ResetsthemodeltothestatebeforetheactionwasexectutedNotavailableafterreturningoutofapanelReturnExitsthepaneltothemenufromwhichthepanelwasaccessedModelOrganization:HyperMeshEntityTypesGeometryPointsLinesSurfacesSolidsConnectors(usedforwelding)FEModelNodesTempNodes(marksanodewithasmallcircle)ElementsPointsLinesSurfacesNodesElementsTempNodesSolidsModelOrganization:HyperMeshEntityTypesFELoadingLoads(constraints,forces,pressures,etc.)Equations(mathematicallinkbetweennodes)ContactsGroup(definescontactbetweenentities)ContactSurfs(definesalistofentitiesthatcanbeusedasmasterorslaveinagroup)ConstraintsForcesPressuresContactSurfaceModelOrganization:HyperMeshEntityTypesMultibodiesEllipsoids(definesashapeforrigidbodies)Mbplanes(definesashapeforrigidbodies)Mbjoints(definestheconnectionof2rigidbodies)SafetySensors(definesatriggertostartanevent)ControlVolumes(definesairbags)ModelOrganization:HyperMeshEntityTypesCoordinateEntitiesSystems(coordinateaxes)VectorsReferenceEntitiesSets(asimplelistofaparticulartypeofentity)Blocks(alistofentitiescontainedwithinaboxshape)1DElementCrossSectionsBeamSections(crosssectionalpropertiesforapropertycollector)SystemsBeamSectionVectorsModelOrganization:HyperMeshEntityTypesPlottingCurves(X-Ydata)Plots(adisplayofcurveswithaxes)OutputRequestsLoadsteps(combinationsofloadcollectors)OutputBlocks(requestoutputfromananalysisforcertainentities)LabelsTitles(labelforadisplayeditem)Tags(assignsanametoanentity)T

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sPlotwithaCurveModelOrganization:HyperMeshEntityTypesMorphingHandles–controlsmodelshapeduringmorphingDomains–dividesamodelintoregions(fordomainbasedmorphing)Morphvolume–Acubeshapedvolumethatmorphsallentitiesthatarelocatedinsidetheshape(forvolumebasedmorphing)Morphconstraints–ControlthemotionofnodesduringmorphingSymmetries–forcesregionstobemorphedsymmetricallyShapes–modelstateduringmorphingsavedforretrievalatalaterpointSymmetriesHandlesDomainsMorphVolumeModelOrganization:HyperMeshEntityTypesOptimizationDesignvars–Variablesthatarechangedduringoptimization(ex:thickness)Optiresponses–Valuesbeingmeasured(ex:vonMisesstress)Objectives–Responsestomaximize/minimize(ex:minimizeweight)Dobjrefs–Objectivereferenceresponseforminmax/maxminoptimization(ex:minimizemaximumvonMisesstress)Opticonstraints–Limitations(ex:vonMisesstress<Yieldstress)Optidscreens–FiltersconstraintstoreducecomputationtimeDvprels–RelationshipsbetweendesignvariablesandpropertiesDesvarlinks–RelationshipsbetweendesignvariablesDequations–AcalculatedvaluetobemeasuredOptitableentrs–TableofconstantsOpticontrols–ParameterstocontroltheoptimizationalgorithmsDDVals

–SetsadiscreetrangeofvaluestobeusedinaDesignvarModelOrganization:CollectorsTheHyperMeshmodelisorganizedusing“collectors”TherearemanytypesofcollectorsMostentitiesinHyperMeshmustbeplacedinacollectorEachcollectortypeholdsaspecifictypeofentityCollectorTypesCancontainentitytypes:ComponentElements,Points,Lines,Surfaces,ConnectorsMultibodyEllipsoids,Mbjoints,Mbplanes,SensorsAssemblyComponents,Multibodies,AssembliesLoadCollectorLoads,EquationsMaterialnone(materialsandpropertiesdon’tcontainotherentitiesbutarestilltreatedascollectors)PropertySystemCollectorSystemsVectorCollectorVectorsBeamSectionCollectorBeamSectionsModelOrganization:CollectorsAnentitycanusuallyonlybelongto1collectorofagiventypeEx:anelementcanonlybein1componentcollectorCancreatemanycollectorsofthesametypeAllentitiesinacollectorarethesamecolorOrganizationcanbehowevertheuserdesires1componentperpartMultiplecomponentsperpartComponent1Component2Component3Component1Component2Component3Component4ModelOrganization:CollectorsModelbrowserViewcollectorsandassembliesinahierarchicaltreeformatCreate,delete,andrenamecollectorsEditcollectorattributesOrganizecollectorsintoassembliesDraganddropRight-ClickonCollectorforadvancedoptionsModelOrganization:CollectorsNewentitiesarecreatedinthe“currentcollector”CreatinganewcollectorautomaticallysetsthecurrentcollectortothatnewcollectorModelBrowserorcanbeusedtochangethecurrentcollector.IncludeBrowsercanbeusedtochangethecurrentinclude.OrganizepanelcanbeusedtomoveentitiesintoadifferentcollectorBold“CurrentCollector”Bold“CurrentInclude”ModelOrganization:ToolsPanelsCollectors–CreatenewcollectorsModelBrowser–SetthecurrentcollectorforvariousentitytypesOrganize–MoveentitiesintoadifferentcollectorthantheonetheyarecurrentlycontainedinRename–ChangethenameofanexistingcollectorReorderCollectorsappearinacertainorderwhenpresentedinalisttopickfromReorderallowstheorderthecollectorsappearintobechangedDelete–DeleteentitiesorcollectorsDisplayControl:GeneralTopicsViewing–Whereyouviewthemodelfrom(pointofview)UsingthemouseViewingtoolsonthetoolbarmenuVisualization–WhatentitieslooklikeWireframevs.ShadedgraphicsVisualizationtoolsonthetoolbarVisibility–WhatyouseeonthescreenDisppanelMaskpanelFindpanelUtilityMenuDisplayControl:Viewing:MouseButtonsLeftmousebutton+CTRL&dragforrotate+CTRL&clickonentitytochangecenterofrotation+CTRL&clickingraphicsarea,offentitiestoresetcentertomiddleofscreenMiddlemousebutton+CTRL&dragforzoom+CTRL&clickforfitRightmousebutton+CTRL&dragforpanDisplayControl:Viewing:ToolbarGobacktothepreviousviewFitthemodeltoyourscreenRedraw/refreshthegraphicsareaX-YPlane,DrawingViewTOPX-YPlane,DrawingViewBOTTOMX-ZPlane,DrawingViewLEFTX-ZPlane,DrawingViewRIGHTPlot,Refresh(P)PreviousView(B)FitView(F)X-YPlane(TopView)X-YPlane(BottomView)X-ZPlane(LeftView)X-ZPlane(RightView)XZYReverseCurrentViewDisplayControl:Viewing:ToolbarIsometricViewCircleZoom(Z)DynamicZoom(S)ZoomIn(+)ZoomOut(-)UserViews(V)TrueView(T)UserViews:Pre-defined&drawingviewsTrueViews:ViewbasedonavectorofanglesDisplaymodelinisometricorientationDrawacircle(freeform)aroundtheareatobemagnifiedZoominoroutbydraggingthemouseverticallyZoomintothecenterofthescreenZoomoutReversemodelaboutimaginaryverticalaxisDisplayControl:Viewing:ToolbarPanCenter(C)RotateLeftRotateRightRotateUpRotateDownRotateClockwiseRotateCounterClockwiseDynamicRotate(A)DynamicSpin(R)Manuallyrotateby“grabbing”apointanddraggingRotaterelativetothemousecursorandscreencenterPanthemodelSelectandclickonthescreentore-centermodelingraphicswindowIncrementalrotationsinrespectivedirectionsDisplayControl:Visualization:ElementsWireframevs.shadedmodeForvisualizationofelementsWireframemodeisdefaultShadedgraphicsElementscanbeshadedduringrotationHasmanyoptionsforvisualizationWireframeorshadedmodecanbesetusingiconsonthetoolbarWireframeShadedDisplayControl:Visualization:ElementsFEStyles–availablefromToolbarWireframeVisualAttributes:ElementVisualizationModesHiddenLineTransparentHiddenw/MeshLinesHiddenw/FeatureLinesDisplayControl:Visualization:SurfacesVarioussurfaceshadingoptionsareavailableontheToolbar:ShadedShadedwithSurfaceedgesWireframeWireframewithSurflinesDisplayControl:Visualization:SurfacestransparencyisavailablefromtheToolbarAllowssurfaceshadinginacomponenttobesettoanyleveloftransparencyViewingthemidsurfaceofsolidgeometryDisplayControl:Visualization:Misc.ColorpanelChangesthecolorofcomponentsOptions:graphicssub-panelDisplayControl:ModelbrowserDisplayscollectorsinatreeformatDisplaycontrolatthecollectorslevel:VisibilityofallentitieswithinthecollectorToggleforgeometryvs.elementsColorofthecollectorVisualizationmodeofallentitiesinthecollectorNote:Doesnotallowfordisplaycontrolofindividualentitiesinacollector.DisplayControl:Visibility:MaskandFindMaskpanelMakesindividualentitiesinvisible(“masked”)Can“unmask”entitiesthataremaskedEntitiesinselectedcollectorswillbeunmaskedAnentity’scollectormustbedisplayedfortheentitytobevisibleTurningacollectoroffthenonwillunmaskallofitsentitiesFindpanelSelectsindividualentitiesandmakesthemvisibleThenon-displayedentitiesinthecollectorarenow“masked”MaskFind/UnmaskAutomeshing:Whatisit?TheautomeshpanelcreatesshellmeshonexistingsurfacesAllowsrapidgenerationofmeshMostpartsfromCADsoftwarecomeinassurfacesAutomeshingallowsallsurfacesofaparttobemeshedatthesametimeMeshonproperlyconnectedgeometryassuresproperconnectivityofmeshAutomeshing:Whatis“topology”?Topology”ishowsurfacesconnecttoadjacentsurfacesofapartSurfaceconnectivityiscontrolledbytheassociatedsurfaceedgesIfasurfaceedgeisassociatedwithmorethan1surface,thosesurfacesareconsideredtobeconnected(“equivalenced”)Surfaceedgesarecategorized,named,andcoloredaccordingtothenumberofassociatedsurfaces:Freeedge(red)Associatedwithonly1surfaceSurfaceswithafreeedgebetweenthemareNOTequivalencedatthatedgeSharededge(green)Associatedwith2surfacesSurfacesareequivalencedSuppressededge(blue)Surfacesaretreatedasthoughcombinedinto1surfaceT-junctionedge(yellow)Associatedwith3ormoresurfacesExample:surfacesformingaT-connectionSurfacesareequivalencedAutomeshing:HowtopologyaffectsthemeshSurfaceedgescontrolhowmeshcreatedonadjacentsurfacesinteract:Freeedgebetween2surfacesNodesareplacedalongedgeformeshingMeshisdiscontinuous;nodesalongthefreeedgearenotequivalenced(Nodesonlyseparatedforillustration)5552233Sharededgebetween2surfacesMeshhasproperconnectivity;nodesalongtheedgeareequivalencedNodesareplacedalongedgeformeshingFreeedges(red)Sharededges(green)55522335Automeshing:HowtopologyaffectsthemeshSurfaceedgescontrolhowmeshcreatedonadjacentsurfacesinteract:Suppressededgebetween2surfacesEdgeisignored;nodesarenotplacedalongtheedgeAreaistreatedjustlike1surface;thereisnolineofnodesalongtheedgeNon-manifoldedgebetween3surfacesMeshhasproperconnectivity;nodesalongtheedgeareequivalencedNodesareplacedalongedgeformeshing55555555443333Suppressededges(blue)T-junctionedges(yellow)Automeshing:TheAutomeshpanel–SelectsurfacestobemeshedDestinationcomponent:-Elementswillbecreatedinthecurrentcomponent-Elementswillbecreatedinthecomponentofthesurface(s)beingmeshedIdentifyandSelect:-Clicktoselectsurfacesthathavenotbeenmeshed-ClicktoselectsurfacesthatfailedtomeshinapreviousoperationAutomeshing:TheAutomeshPanelMeshingMode:–Createsmeshperthesettingsintheautomeshpanel–Asautomatic;alsoopensthemeshingmoduletointeractivelyeditthemeshActionbuttons:–Deletesold&createsanewmeshontheselectedsurfaces–DeletesmeshthatwasjustcreatedontheselectedsurfacesAutomeshing:TheAutomeshPanelMeshParameters:–Targetsizeofelementstocreate–Typeofelementstobecreated-Tokeepelementsroughlythesamesize-Topreventthemeshfromproducingskewedelements-Separatesthere-meshedselectionfromtheadjoiningmeshsothattheyarenolongerconnected-Ifchecked,activatesallmanualadjustmentsandoptionspreviouslyusedtomesh-ForcesoppositesurfaceedgestouseconsistentedgedensitiesAutomeshing:TheMeshingModuleAllowsinteractivemodificationsofameshduringmeshcreationUsefulforcreatingdesirablemeshpatternsCreatesandmodifiesa“preview”ofthemeshUsedby:InteractivemeshingmodeinautomeshpanelRuled,spline,skin,drag,spin,line

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offsetpanelsDefinitions:Density–numberofnodesorelementscreatedalongasurfaceedgeNodeSeeding–PlacementofnodesalongasurfaceedgeAutomeshing:TheMeshingModuleGeneralControls

–CreatesandupdatesthemeshpreviewusingthecurrentsettingsUserupdatessomemeshparametersonasurface,thenclicksmeshtoviewtheresultsAcceptingandCanceling

–Cancelsoutofthemeshingmodule;nomeshiscreated

–Createsthemeshasperthemeshpreviewandreturnstotheautomeshpanel

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OffersFitandcontrolsfromtheViewpanelOnlyappliestosurfacesthatarecurrentlybeingmeshedAutomeshing:TheMeshingModuleDensity–ControlelementdensityalongedgesMeshStyle–Setmethodandtypethatdeterminesmeshpatternandsmoothingmeshmethod:Autodecide–Automaticallyselectsoneofthebelowmethodsmapasrectangle–Forrectangularshapedareas;cansometimesbeusedforothershapesaswellmapastriangle–Triangularshapedareasmapaspentagon–Pentagonalshapedareasfree(unmapped)–Forareasofanyshape–Quaddominantmesh;willusetriasifnecessary–Equilateral(60-60-60)triamesh–Quadmeshwithuseoftriastocreateasrectilinearameshaspossible–Isosceles(45-45-90)triameshAutomeshing:TheMeshingModuleMeshStyle,continuedType–DeterminethetypeofelementstobeusedinthemeshQuadsMixedTriasR-triasAutomeshing:TheMeshingModuleMeshStyle,continuedElementtypeandmethodcombinetodeterminetheoverall“style”ofyourmeshThis“style”canbeviewedbymeshthattransitionsbetweendifferentdensityvalues:MapasRectangleFree(Unmapped)QuadMixedTriasR-triasMeshTypesMeshMethodsAutomeshing:TheMeshingModuleBiasing–ControlsthedistributionofnodesduringnodeseedingChecks–EvaluateselementqualityofthegeneratedmeshBiasingAutomeshing:ProcessandStrategyUsegeometrycleanuptoolstoaddresssurfaceconnectivityAutomeshthesurfacesSettheapproximateelementsizeyouwantUsetypeandalgorithmtosettheoverallmesh“style”AlterindividualdensitiestofindbettermeshpatternsChangesomebiasingonproblemsurfaces(thiscanchangemeshpatternaswell)UseHyperMesh’smesheditingtoolstofixthe10-20%elementsthathavepoorqualityorbadmeshpatternDon’tdeleteameshthatis90%good.Keepitandfixthe10%thatisbadExperienceiskey:EXPERIMENT!Goal:getthemeshtobeapproximately80-90%goodqualityChecking&EditingMesh:1D,2D,&3DpagesEditelementCombine–merge2ormoreelementsinto1singleelementSplit–drawalinetocutelementsCleanup–interactivelydragnodestoimproveelementqualitySplit–divideselectedelementsinaselectedmannerReplace–merge2nodesinto1node(elementsarenowconnected)Detach–disconnectselectedelementsfromotherelementsChecking&EditingMesh:2DpageAutomesh

–settheentityselectortoelemstoremeshpatchesofelementsVERYusefulforimprovinglocalelementqualityandmeshpatternSmooth

–improvesqualityofselectedelementsQualityindexSetcriteriaforallstandardqualitychecksSimultaneouslyevaluateelementqualityCombineallchecksintoasinglevaluecalled“compositequalityindexvalue”EditnodesandelementsinteractivelyorbyautomaticallymaximizingelementqualityChecking&EditingMesh:ToolpageCheckElems–evaluateelementsagainstvariouselementqualitycriteriaJacobian,warpage,angle,min.length,aspectratio,skewEdgesDisplayfreeedgesinthemodelbycreating1DelementsoneachoneEquivalence(merge)nodeswithinaspecifiedtoleranceNormals–displayandcorrectelementnormalsPenetration–displayandcorrectelementpenetrationChecking&EditingMesh:UtilityMenuGeom/Mesh

pageAddwasher–addaringofquadelementsaroundaholeinexistingmeshTrimHole–addaholetoexistingmeshFillHole–removeaholefromexistingmeshBoxTrim–cutelementspassingthroughaboxshapeBead–addabeadshapedmeshtoanexistingmeshChecking&EditingMesh:UtilityMenuQA/Model

pageEntirepagehasusefultoolsforcheckingandeditingmeshSpecialmention:QualityReport–checkallstandardqualitychecksatonceandwriteoutatextreportModelTour–“tours”themodel,componentbycomponent,checkingedgesandfindingattachedelementsElems>>LoadsComps>>LoadsLoads>>CompsElems>>ConnectorsFind&displaysentitiesattachedtothedisplayedentitiesofthelattertypeBatchMeshing:IntroductionPerformsgeometrycleanupandautomeshinginabatchmodeCandramaticallyimproveproductivitysincethereisminimaluserinteraction(especiallyforlargeassemblies)UsescriteriaandparameterfilestodeterminehowthepartsshouldbemeshedCanmeshmultiplefilesinthesamerunBatchMeshing:Process&RequiredInputCreate/specifyConfigurationsCombinationofelementcriteriaandgeometricparametersElementcriteriaareelementqual