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2011ANSYS,Inc. October24,20111
ImprovingYourStructuralMechanicsSimulationswithRelease14.0
ToddMcDevitt,PhDPEProductStrategy&PlanningANSYS,Inc
2011ANSYS,Inc. October24,20112
StructuralMechanicsThemes
MAPDL/WorkbenchIntegration
Physicscoupling
Rotatingmachines
Composites&FractureMechanics
ApplicationCustomization
Thinstructuresmodeling
Contactanalysis
Performance
AdvancedModeling
GeometryHandling
Listeningtoyourneeds,wehavebeenabletoidentifyanumberofthemeswhichformthebasisofourroadmapandguideourdevelopments
2011ANSYS,Inc. October24,20113
WhatwillRelease14.0bringyou?
2011ANSYS,Inc. October24,20114
Letsnowtakeacloserlookatsometopics
2011ANSYS,Inc. October24,20115
MAPDL/WorkbenchIntegration
FiniteElementInformationAccesswithinANSYSMechanical
2011ANSYS,Inc. October24,20116
SpotWelds
Connectionscreatedinternallyatthesolutionlevelareavailableandcanhelpunderstandtheresults
ReviewingConnections
WeakspringsandMPCcontactsasgeneratedbythesolver
2011ANSYS,Inc. October24,20117
Nodescanbegroupedintonamedselectionsbased onselectionlogic,usinglocationsorothercharacteristics ormanualselections
SelectingNodes
BoxSelection NodePicking LassoSelection
2011ANSYS,Inc. October24,20118
ApplyingLoadsandOrientationstoNodes
NodalOrientationallowsuserstoorientnodesinanarbitrarycoordinatesystem.
DirectFEloadsandboundaryconditions canbeappliedtonodeselections.
Nodesareorientedincylindricalsystemforloadsandboundaryconditiondefinitions
2011ANSYS,Inc. October24,20119
ResultsonNodeSelections
Results aredisplayedonelementsforwhichallnodesareselected.
Nodesnamedselectionsallowtoscopeonspecificregionsofthemeshorremoveundesiredareas.
Resultswithfirstlayerofquadsremoved
Resultsonquadslayersonly
2011ANSYS,Inc. October24,201110
RestartandDirectFELoads
NodalForcesandPressuresobjectscanbeaddedtoarestartanalysis withoutcausingtherestartpointstobecomeinvalid.
Otherloadscannowbemodifiedwithoutlosingtherestartpoints.
AnalysisSettingstabulardata:Norestartpointislost
Addedafterinitialsolve
SecondLoadstepmodifiedforrestart
2011ANSYS,Inc. October24,201111
AvoidResolveswithPostCommands
Addingpostcommandsnippetsafterasolutiondoesnotrequireresolvingtheentiresolution.
Thisisthedefaultsettingiftheuseraddsapostcommandobject.
2011ANSYS,Inc. October24,201112
MAPDL/WorkbenchIntegration
LinearDynamicsinANSYSMechanical
2011ANSYS,Inc. October24,201113
WorkbenchandMechanicalenhancements
MSUPtransientanalysissupported
PrestressMSUPharmonic
Jointfeaturescannowbeusedinharmonics,randomvibrationanalysis
Reactionforce&momentresultsarenowsupported
ModalSuperpositionTransient
JointsinHarmonicAnalyses
Reaction ForcesinHarmonic Analyses
2011ANSYS,Inc. October24,201114
PhysicsCoupling
DataMapping
2011ANSYS,Inc. October24,201115
Motivation
Engineeringorganizationsoftenuseexternalfilestotransferquantitiesfromonesimulationtoanother.
Efficientmappingofpointclouddataisrequiredtoaccountformisalignment,nonmatchingunitsorscalingissues.
2011ANSYS,Inc. October24,201116
SupportedDataTypes
NewatR14.0
2011ANSYS,Inc. October24,201117
IncreasedAccuracy
Thesmoothness ofthemappeddatadependsonthedensityofthepointcloud.
Severalweightingoptionsareavailabletoaccommodatevariousdataquality.
Triangulation versus Kriging
2011ANSYS,Inc. October24,201118
ValidatingtheMappedData
Visualtoolshavebeenimplementedtocontrolhowwellthedatahasbeenmappedontothetargetstructure
2011ANSYS,Inc. October24,201119
ImportingMultipleFiles
Multiplefilescanbeimportedfortransientanalysesortohandlemappingstomultiplebodies
2011ANSYS,Inc. October24,201120
RotatingMachines
StudyingRotordynamics inANSYSMechanical
2011ANSYS,Inc. October24,201121
Motivation
ANSYSMechanicalusersneedtobeabletoquicklycreateshaftgeometriesaswellasanalyzedynamiccharacteristicsofrotatingsystems
Industrialfan(Venti Oelde)
2011ANSYS,Inc. October24,201122
GeometryCreation
GeometriescanbeimportedfromaCADsystem orimportedfroma simpletextfiledefinitionforpreliminarydesign
2011ANSYS,Inc. October24,201123
Import/ExportofBearingCharacteristics
ANSYSprovidesaninterfacethatallowstoimportbearingcharacteristics fromanexternalfile
2011ANSYS,Inc. October24,201124
CampbellDiagrams
Campbelldiagramsareusedtoidentifycriticalspeedsofarotatingshaftforagivenrangeofshaftvelocities
2011ANSYS,Inc. October24,201125
Composites
EnhancedAnalysisWorkflowandAdvancedFailureModelsforComposites
2011ANSYS,Inc. October24,201126
Motivation
Efficientworkflowsandindepthanalysistoolsarerequiredtomodelandunderstandcomplexcompositesstructures
2011ANSYS,Inc. October24,201127
ManuallyDefiningLayersonSimpleGeometries
Userscandefinesimplelayeredsections forashellbodyaswellasdefinethicknessesandanglesasparameters
2011ANSYS,Inc. October24,201128
DefiningLayersonComplexGeometries
Forcomplexgeometries,theANSYSCompositePrepPosttoolisusedandlayerdefinitionsareimportedintheassemblymodelinANSYSMechanical.
Courtesy ofTUChemnitzandGHOSTBikesGmbH
2011ANSYS,Inc. October24,201129
AdvancedFailureAnalysis
CrackgrowthsimulationbasedonVCCTisavailabletosimulatedelamination.
Progressivedamageissuitablefordeterminingtheultimatestrengthofthecomposite(lastplyfailureanalysis)
2Dlaminarcomposite
Initialcrack
Startofdamage(layer1)
Progresseddamage(layer1)
Progresseddamage(layer3)
2011ANSYS,Inc. October24,201130
Customization
ANSYSDesignAssessment
2011ANSYS,Inc. October24,201131
Motivation
Manyofyouhaveexpressedtheneedfor:ComputinganddisplayingspecificresultsBeabletoachievemorecomplexUserdefinedresults
2011ANSYS,Inc. October24,201132
WhatisDesignAssessment?
TheDesignAssessmentsystemenablestheselectionandcombinationofupstreamresultsandtheabilitytooptionallyfurtherassessresultswithcustomizablescripts
2011ANSYS,Inc. October24,201133
DesignAssessmentforAdvancedUserDefinedResults
DesignAssessmentenableuserstoextenduserdefinedresultscapabilitieswith:
ExpressionsusingmathematicaloperatorsassupportedbyPython
Coordinatesystems,UnitsSystems
Integrationoptions
Nodal,ElementNodal&Elementalresulttypes
ImportfromexternaltablesScriptusedtodisplayscalarelementdatastored
inanexternalfile
2011ANSYS,Inc. October24,201134
ThinStructures
MeshConnections
2011ANSYS,Inc. October24,201135
Motivation
Inordertoconnectmeshesofdifferentsurfacepartssoastosharenodesatintersections,usersdonotalwayswantorcannotmergethetopologiesatthegeometrylevel.Meshbasedconnectionsarerequired.
2011ANSYS,Inc. October24,201136
MeshConnections
Meshconnectionsworkatpartlevel:AsapostmeshoperationBasepartmeshisstoredtoallowforquickchangesinconnections
2011ANSYS,Inc. October24,201137
FurtherMeshingEnhancements
2011ANSYS,Inc. October24,201138
VirtualTopologiesInteractiveEditing
Virtualtopologiesarehandledmoreinteractivelythroughdirectgraphicsinteractionratherthantreeobjects.
UserselectsentitiesthenappliesVToperations
DirectaccesstooperationsfromRMBmenu
2011ANSYS,Inc. October24,201139
VTHardVertex,EdgeandFaceSplits
Hardverticescanbeaddedatanylocationonanedgeoraface.
Hardverticescanthenbeusedtocreatefacesplitsfromvirtualedges.
2011ANSYS,Inc. October24,201140
ContactAnalysis
RigidBody&FlexibleDynamics
2011ANSYS,Inc. October24,201141
Motivation
Manymechanismsandassemblieshavecomponentsthatoperatethroughcontact.
2011ANSYS,Inc. October24,201142
PerformanceImprovements
Valve:158secelapsedtime(2xspeedup)
Piston:9secelapsedtime(7.5xspeedup)
Theapplicability,robustnessandefficiencyofthecontacthasbeenimprovedforspeedandaccuracyexpectatypical25xspeedup
Transitionandjumppredictionhavebeengreatlyimproved
2011ANSYS,Inc. October24,201143
ProjectedContact
Improvedpressureresultswithsurfaceprojection
TheSurfaceProjectionBasedContactprovidesmoreaccurateresults(stresses,pressures,temperatures)andisnowalsoavailableforbondedMPCcontacts
Regularcontact Projectionbased
Smoothertemperatureresultsonamultilayeredstructure
2011ANSYS,Inc. October24,201144
Contactaccuracyandrobustness
ContactstabilizationtechniquedampensrelativemotionsbetweenthecontactandtargetsurfacesforopencontactNewcontact
stabilizationpreventsrigidmotion
Adjusttotouchcausesrigidbodymotionandleavesagap
2011ANSYS,Inc. October24,201145
Performance
FurtherbenefitsfromGPUboards
2011ANSYS,Inc. October24,201146
Takingadvantageofthelatesthardwareismandatorytosolveyourlargemodels.
Acombinationofrelativelynewtechnologiesprovidesabreakthroughmeanstoreducethetimetosolution
Motivation
+
2011ANSYS,Inc. October24,201147
DistributedANSYSSupportsGPUs
2.1MDOF,NonlinearStructuralAnalysisusingtheDistributedSparseSolver
GPUAccelerationcannowbeusedwithDistributedANSYStocombinethespeedofGPUtechnologyandthepowerofdistributedANSYS
2011ANSYS,Inc. October24,201148
SpeedupfromGPUtechnology
SolderJointBenchmark 4MDOF,CreepStrainAnalysis
ResultsCourtesyofMicroConsult Engineering,GmbH
Linuxcluster:Eachnodecontains8IntelXeon5600seriescores,96GBRAM,NVIDIATeslaM2070,InfiniBand
MoldPCB
Solderballs
2011ANSYS,Inc. October24,201149
AdvancedModeling
MaterialModels&Methods
2011ANSYS,Inc. October24,201150
AnisotropicHyperelasticity plusViscoelasticityforstrainrateeffects
Hyperelasticity coupledwith PorePressureelement
ShapeMemoryAlloyenhancedwithsuperelasticity,Memoryeffect,NewYieldFunction,DifferentiatedModuli(Austenite,Martensite)
Holzapfel Model Capturethebehavioroffiberreinforcedtissue
AdvancedMaterialsforBiomechanicalApplications
HydrocephalusanalysisHyperelastic materialwithporousmedia
Stentmodelingusingshapememoryalloys
2011ANSYS,Inc. October24,201151
Nonlinearmaterialssupportforcoupledfieldelements
Coupledfieldelementsforstronglycoupledthermomechanicalanalysisnowaccountsforplasticityinducedheatgenerationalongwithfrictioneffects
FrictionStir Welding includingheatgenerationduetofrictionandplasticdeformation
2011ANSYS,Inc. October24,201152
MoistureDiffusion
Moistureinduceshygroscopicstressesandaltersthermalstresses.
Coupledfieldelementsallowtoincorporatemoistureeffectsinthermal,structuralandcoupledsimulations.
2011ANSYS,Inc. October24,201153
AdvancedNonlinearMethods
Usercannowperform:Bucklingfromanonlinearprestressedstate withdeadloads(newsubspaceeigensolver)
3Drezoning forverylargedeformationsforawiderrangeofmaterialsandboundaryconditions.
HotRollingStructuralSteelAnalysiswith3DRezoning
Bucklingofaprestressedstiffenedcontainer
2011ANSYS,Inc. October24,201154
Coupledstructures/acousticssimulations
Coupledproblemsaremodeledmoreefficiently:QuadratictetrahedralacousticselementsNewacousticssourcesAbsorbingareasEnhancedPMLformulation Nearandfarfieldparameters
2011ANSYS,Inc. October24,201155
AdvancedModeling
BrakeSqueal
2011ANSYS,Inc. October24,201156
ComplexEigensolve Animate:ComplexModeShape ContactStatusatPads
ANSYSSolutionforBrakeSqueal
CAD Mesh&ConnectionSetup&solver
PostProcessing
BiDirectionalCADConnectivity
AutomatedContactDetection
Providesforslidingcontactwithfriction Nomatchmeshneeded Supportshigherorderelements AutomatedMeshing
FlexibilitytouseLinear&Nonlinearsolvercapabilities
Rootlocusplots Correlationofmodes ListStrainenergypercomponentpermodeFrictionsensitivitystudy
Physicalprototypingtimeconsumingandexpensive Providemoreanalysisearlyinthedesigncycle ParametricStudybychangingfrictioncoefficient
RunsetofDOEs Reusesymmetricmodesandjustrununsymmetricpart Significanttimereduction
CanIncludeSquealandContactdamping Slidingvelocity
dependentFriction
2011ANSYS,Inc. October24,201157
PhysicsCoupling
SystemOptimizationwithRigidBodyDynamicsandSimplorer cosimulation
2011ANSYS,Inc. October24,201158
Motivation
Mostmechanismsandassembliesaremanagedviacontrolsystems.
Systemsimulation,includingthedetailsofthemechanismorassembly,areneededinordertoimprovemodelingaccuracy,fidelityandultimatelysystemoptimization.
2011ANSYS,Inc. October24,201159
LinkingMechanicalandSimplorer
InputsandoutputsaredefinedaspinsintheMechanicalmodelandconnectedtotheschematicsofSimplorer
2011ANSYS,Inc. October24,201160
SomeExamples
AircraftLandingGear
Simplorer schematicofhydrauliccircuitandcontrol
RBDmodel
RoboticArmControl
Traceofarmtrajectory
2011ANSYS,Inc. October24,201161
Andthereismuchmore
2011ANSYS,Inc. October24,201162
checktheReleaseNotes!
2011ANSYS,Inc. October24,201163
ThinkalsooftheTechnologyDemonstrationGuide
2011ANSYS,Inc. October24,201164
Questions?
2011ANSYS,Inc. October24,201165
Appendix
2011ANSYS,Inc. October24,201166
Customization
ApplicationCustomizationToolkit
2011ANSYS,Inc. October24,201167
Motivation
AsaMechanicalUser,youmaywantto: CustomizemenusCreatenewloadsandboundaryconditionsCreatenewtypesofplotsReuseAPDLscriptswithoutcommandsnippets
2011ANSYS,Inc. October24,201168
WhatistheApplicationCustomizationToolkit?
TheApplicationCustomizationToolkit isatoolthatfacilitates customizationofANSYSMechanical.
ItprovidesawaytoextendthefeaturesofferedbyANSYSproducts.
2011ANSYS,Inc. October24,201169
ToolbarCustomizationthroughXMLFiles
1
Convection_Blade_Computation
XMLdefinition:
2011ANSYS,Inc. October24,201170
PythonDrivenLoadsandBoundaryConditionsPythonscript:
#Get thescoped geometry:propGeo =result.GetDPropertyFromName("Geometry")refIds =propGeo.Value
#Get therelated mesh andcreate thecomponent:forrefId inrefIds:
meshRegion =mesh.MeshRegion(refId)elementIds =meshRegion.Elementseid =aap.mesh.element[elementIds[0]].Idf.write("*get,ntyp,ELEM,"+eid.ToString()+",ATTR,TYPE\n")f.write("esel,s,type,,ntyp \ncm,component,ELEM")
#Get properties from thedetails view:propThick =load.GetDPropertyFromName("Thickness")thickness=propThick.ValuepropCoef =load.GetDPropertyFromName("FilmCoefficient")film_coefficient =propCoef.ValuepropTemp =load.GetDPropertyFromName("AmbientTemperature")temperature=propTemp.Value
#Inserttheparameters fortheAPDLcommands:f.write("thickness="+thickness.ToString()+"\n")f.write("film_coefficient="+film_coefficient.ToString()+"\n")f.write("temperature="+temperature.ToString()+"\n")
#Reuse thelegacy APDLmacros:f.write("/input,APDL_script_for_convection.inp\n")
2011ANSYS,Inc. October24,201171
WritingAPDLCommandsFromtheNewDefinition
!APDL_script_for_convection.inp
!Inputparameters:esel,s,type,,10cm,component,ELEMthickness=1.1film_coefficient =120.temperature =22.
!Treatment:/prep7et,100,152keyop,100,8,2.et,1001,131keyo,1001,3,2sectype,1001,shellsecdata,thickness,10secoff,midcmsel,s,componentemodif,all,type,1001emodif,all,secnum,1001type,100esurffinialls/soluesel,s,type,,100nslesf,all,conv,film_coefficient,temperaturealls
APDL
WBMechanical
2011ANSYS,Inc. October24,201172
AnExample:ACTdrivenSubmodeling
Userssimplyselectthecoarsemodelsresultsfile,allAPDLcommandsareautomaticallycreated nomoreneedforcommandblocks!
2011ANSYS,Inc. October24,201173
AdvancedModeling
OffshoreStructures
2011ANSYS,Inc. October24,201174
OvertheperiodofthedesignofanoffshorestructurefromConceptthroughFEEDandDetailedStructuralandEquipmentDesign thereareneedsformanydifferentanalysesrelatedtoglobalstructuraldesignandintegrityanddetailedcomponentlevelanalysis.Toensuredeliverytimeliness,andreliabilitywherecostsoffailurearesohigh,thereisconsiderablevalueincompatibilitybetweentherespectivetools.ThisisdeliveredbytheongoingintegrationofANSYSAQWAinWorkbenchanddeliveryofenhancedcapabilitiesinMechanical/MAPDLforoffshorestructuresanalysis.
Importantly,ANSYSStructuralMechanicsproductsnowdelivertheabilitytoconductbothglobalanddetailedanalysisofoffshorestructuressubjectedtovariouswaveandenvironmentalloadings.
GlobalOffshoreStructures
Localjointflexibilityanalysis
Globalhydrodynamicsandstructuralanalyses
2011ANSYS,Inc. October24,201175
HydrodynamicTimeResponsesystemenhancementsinclude Fenders(similartocontact)
Allowsconnectionsbetween2structuresorbetweenastructureandafixedpoint
Articulations(similartojoints)
FurtherAQWAIntegrationinWorkbenchforMultiBodyWaveHydrodynamics
Offloadingarmrepresentedwithseriesoftypicalarticulations
2011ANSYS,Inc. October24,201176
EnhancedEnvironmentalConditionsandCableBehaviorinAQWA
Introductionofmultidirectionalwavespectraallowsmorerealisticmodellingofrealwaveconditions,andisimportantfortheaccuratesimulationofmooredvesselsandoffshoreplatforms AlmostanycombinationofwavespectratobemodelledinthesolvermodulesLIBRIUM,DRIFTandtheHydrodynamicTimeResponsesysteminWorkbench
TomeetAPIstandard(RP2SK),nonlinearaxialstiffnesscanbeusedtodefineamooringline
GaussianformulatedwavespectrumnowavailableinthecoresolverandtheHydrodynamicTimeResponsesystem
2011ANSYS,Inc. October24,201177
Diffractedwaveloading ProvidessimplifiedpressureloadingfromHydrodynamicsDiffractionsystems(AQWA)ontoMAPDLsystem
HarmonicWaveLoading Regularwaveloadingnowavailableforharmonicresponseanalyses
ANSYSFATJACK(forbeamjointfatigueofframedstructures)automaticallyreadstheRSTfiledataforharmonicloadcases
ANSYSBEAMCHECK(formemberchecksonframedstructures)andANSYSFATJACKnowdeliveredwithMechanicalinstallation SeeDesignAssessmentforfurtherinformation
ExtendedWaveLoadinginMechanicalandlinkstoRegulatoryCodeChecks
VesselLoadingTransferfromAQWAtoMechanicalCourtesyofVuyk EngineeringRotterdam
2011ANSYS,Inc. October24,201178
Aeroelastic coupling(forwindturbinesupportstructures) Sequential
Allowingstructural(ANSYS)andaeroelastic (3rdparty)analysestoberunindependently
JustuseaprovidedMAPDLmacrotowriteoutinputdatafortheaeroelastic analysis
Fullycoupled Cosimulationofstructuralandaeroelastic tools CustombuildofMAPDLrequired,withamacrotomanagethedataavailabilityfromandtoMAPDL
CouplingMechanicalwith3rd PartyAeroelastic ToolsforOffshoreWindTurbineModeling
ImagesCourtesyofREpower SystemsAG