3D8 Using the TetraMesh Process ManagerWord文件下载.docx
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3D8 Using the TetraMesh Process ManagerWord文件下载.docx
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Cleanupthe2-Dmesh
TetraMesh
TheProcessManagerisastep-by-steptoolprovidingachecklistofprocedurestoallowtheusertoquicklyorganizeandtetmeshageometricmodel.
Eachstepisprovidedinahierarchallistprovidingtheorderinwhichtheprocessneedstobeperformedandprovidingspecializedtoolsateachsteptosimplifytheprocess.
Thesesteps,whiletheycanbedonemanually,canbeperformedintheTetraMeshProcessManagertemplateinamuchreducedtimeframe.
Exercise
Step1:
InitiatetheProcessManager.
1.
FromtheMenuBar,selectMesh,thenCreate,thenTetraMeshProcess,thenCreateNewtoaccesstheProcessManager.
2.
Enterasessionnameorleaveitasmy_session.
Note:
Creatingasessionnameandsavingthesessionallowstheusertostoptheprocessbeforecompletionandthenloaditagainatalatertime,pickinguptheprocessatthepointitwasleftoff.
3.
Selectaworkingfolder.
4.
ClickCreate.
Step2:
Importgeometry.
AtthispointtheTetraMeshProcesstabwillopenintheTabareaandwillautomaticallyassembletheTetraMeshProcessFlow.
Thefirststep,GeometryImport,ishighlightedandthepanelareahasbeenconfiguredwithspecificpanelsforaidingtheTetrameshProcessManagertemplate.
YoucanswitchbacktothenormalHyperMeshpanelareausingtheProcessManagerTaskicon(
).
Right-clickitandselecttheHyperMeshPanelicon.
YoucangobacktotheProcessManagerpanelsagainbyinsteadselectingtheProcessManagericon.
Inthepanelarea,changetheImportTypetoHMModel.
Onthetoolbar,clickOpen.hmFile(
)andselectthefiletetmesh_pm.hmfrom<
installation_directory>
\tutorials\hm\.
ClickImport.
ThemodelwillimportandagreencheckwillappearnexttoGeometryImportintheProcessManagerindicatingthatstepisnowcomplete.
Step3:
Cleanupthegeometry.
FromtheGeometryColorModeselector(
)
pickByTopoandclickShadedGeometry(
).
Inthepanelarea,selecttheEdgeToolstab.
ClickIsolate.
Thiswillisolatethesurfaceswithfreeedgesonthem.
IsolatedSurfaceswithfreeedges.
SelecttheFreeEdgestabandclickEquivalence.
Thiswillfixallthefreeedges.
Ifthisdidnotcorrectallofthefreeedges,theTolerancevaluecouldbeincreaseduntilallfreeedgesareequivalenced.
5.
SelecttheEdgeToolstabandclickIsolateagain.
Awindowshouldappearwiththemessage,“Noedgesfound…”Thisconfirmsalledgeshavebeenfixed.
6.
ClickDisplayAll.
7.
ClickACCEPT.
TheGeometryCleanupstephasbeencompletedandshouldhaveagreencheckmarkbyit.
Step4:
OrganizeandCleanupholes.
Thisstepwillallowyoutoorganizethesurfacesthatformholesinthemodel.
TheTetraMeshProcessManagercanautomaticallysortandorganizeholesintoseparatecomponentcollectorsbasedupontheirdiameter.
Thiswillallowyoutospecifymeshtype,circumferenceelementcount,andlongitudinalelementsizefordifferentholegroups.
Inthepanelarea,clickthe+(
)button.
Thiswilladdathirdlinetothetable.
Onthefirstline,enter3.3intotheD<
field.
Thiswillorganizeallholeswithadiameterbetween0and3.3units,asindicatedbytheRangefield,intoacollector.
Enter5intothesecondrowand10intothethird.
ThiswillallowHyperMeshtoorganizetheholesintothreecollectorsthatwillincludeholesrangingfrom0-3.3units,3.3-5unitsand5-10unitscollectively.
ClickAutoOrganize.
Alloftheholesinthemodellessthan10unitswillnowbeorganizedintothreecomponentcollectors,eachwithadifferentcolor.
ClicktheModeltabandexpandtheselection.
Youwillseethreenewcomponentcollectorswiththenamesolidholesfollowedbythenumericalaverageofthediameterrangeoftheholesorganized.
Transparentviewofmodelshowingallholesandboresorganized
ReturntotheTetraMeshProcesstab
IntheNumCircumferenceElemsfieldenter12foreachrow.
8.
IntheLongitudinalElemSizefieldenter1foreachrow.
TheNumCircumferenceElemsfieldgovernsthenumberofelementsthatwillbemeshedaroundtheholewhiletheLongitudinalElemSizefielddictatestheunitsizeoftheelementsthroughthelengthofthehole.
9.
TheOrganize&
CleanupHolesstepisnowcompleteshouldnowhaveagreencheckmarknexttoit.
Step5:
Meshholes.
InthepanelareayouwillnoticethateachholediameterrowhasaMeshTypefieldwithapull-downprovidingtheoptionsofR-triaregularandR-triaunionjack.
VerifythatallaresetforR-triaregularandclickMeshAll.
(TheR-triaunionjackmeshpatternwillbediscussedinalaterstep.)
Youwillnoticethisprocessprovidesaperfectlystraighttriameshdownthelengthoftheholewithnotwisting.
ThecheckmarkintheMeshHolesstepwillnowturngreen.
Step6:
Organizeandcleanupfeatures.
Thisstepallowsyoutohighlightandorganizefeaturesthatrequirespecificmeshcontrolsbeyondtheoverallmeshpatternthatwillbeappliedtotheremainderofthepartinalaterstep.
Thisorganizationaltoolwillplacetherequiredsurfacesintotheirowncollectororcollectorsandallowyoutosetmeshsizeandpatternrequirementsforeach.
)button.
IntheDefineNewwindowthatopens,typeFacesandclickOK.
Selectallfiveoftheflatfacesaroundthecircumferenceofthepartasshowninthefollowingimage.
Clickproceed.
Facesthatneedtobepicked
ThepanelwillswitchtotheOrganizepanelwithyoursurfacespre-selectedtomoveintoanewcomponentcalledgrp_Faces.
Clickmove,thenreturn.
Clickthe+(
)buttonagain.
IntheDefineNewwindowthatopens,typeTopHoleandclickOK.
Rotatethemodelsoyouarelookingatitfromunderneathintothecenter,andselectthesurfacesshowninthefollowingimage.
Withthistoolyouneedonlyselectoneofthetwosurfacesthatmakeupacylinder;
whenyouclickproceedHyperMeshwillautomaticallyselecttheothersurfaces.
10.
IntheOrganizepanel,clickmove,thenreturn.
Yourmodelshouldthenlooksimilartothefollowingimage,withthefacesinonecollectorandthetopholeinanother.
Yourcolorsmayvaryslightly.
11.
ClickACCEPT.
Step7:
Organizeandcleanupfilets.
Oftenabettermeshcanbeachievedifyourfilletsaresplitdownthecenter.
Thestepwillallowyoutoautomaticallysplityourfilletsbasedonminimumandmaximumradiuscriteria.
ClickComponents.
Selectthepartinanareathathasnotbeenorganizedintoanewcomponentsothatthelargepurplepartisselected.
LeavetheMinRadiusat0andtheMaxRadiusat5andmakesuretheSuppressFilletTangentEdgesoptionisactive.
ClickCleanup.
Youwillnoticethatmanyofthefilletsnowhaveanedgerunningdownthecenterandtheoriginaledgesaresuppressed.
Step8:
Meshfeatures.
InthisstepyouwillmeshthefeaturesthatyouorganizedinStep6.
Thepanelareawillshowatablewithyourorganizedfeaturesinitandwillgiveyoutheoptionofselectingameshtypeandsizeforeachfeature.
FortheFacesfeature,clickthepull-downunderMeshTypeandpicktrias.
InthefieldunderElemSize,enter0.5.
FortheTopHolefeature,selectR-triaunionjackfortheMeshType.
ForElemSize,enter0.5.
ClickMeshAll.
NotethedistinctiveUnionJackmeshpattern(
)inthetopholeareaandtheconnectivityofthemeshtothepreviouslymeshedholes.
Step9:
Organizeandcleanup.
Thisstepallowstheusertoorganizeandcleanuptheremainingportionofthemodelthatwillthenfallundertheglobalmeshingparameters.
Astheremainingsurfacesarealreadyinthecomponentyouwishthemtobein,thereisnoneedforfurtherorganization.
Step10:
Mesh/remesh.
Thisstepiswheretheremainingmodelwillbegloballymeshed.
Elementsizeandtypecanbesetforallremainingcomponentsthatremainunmeshed.
IntheElementSizefield,enter1.
SetMeshTypetotrias.
ClickMesh.
Step11:
Cleanupelements.
Atthispointthemodelshouldbeentirelysurfacemeshed.
Properadherencetothepreviousstepsensuresasurfacemeshthatisproperlyconnectedandcontrolledbythepreviouslyenteredvalues.
Thisstepwillnowallowtheusertoverifyapropermeshandcleanupanyissuesthatarefound.
Inthepanelarea,clickComponents.
Selectallofthecomponentsandclickproceed.
Leaveallofthevaluesattheirdefault(MinSize–0.25,MaxFeatureAngle–60.0,NormalsAngle–150.0)andclickAutoCleanup.
Thefollowingmessageshouldappear.
Thisindicatesthatallfailedelementshavebeenfixedandtherearenofurthererrorsinthemodel.
(Optional)TheManualtaballowstheusertomanuallycheckthemodelforfreeedgesandt-junctionsandfixanythatarefound.
Thereisalsotheoptiontodisplaynormals.Usetheseoptionstofindandfix
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