ANSYS Mechanical APDL - padtinc.com...ANSYS 14.5 Mechanical Cool Stuff • One hour is not enough...

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DX R13: 02/17/2011 1 New and Cool Stuff in ANSYS R14.5 Mechanical Products Eric Miller Co-Owner Principal, Simulation and Business Technologies 12/12/2012 at 12:00 PADT, Inc.

Transcript of ANSYS Mechanical APDL - padtinc.com...ANSYS 14.5 Mechanical Cool Stuff • One hour is not enough...

  • DX R13: 02/17/2011 1

    New and Cool Stuff in ANSYS R14.5 Mechanical Products

    Eric Miller Co-Owner

    Principal, Simulation and Business Technologies

    12/12/2012 at 12:00

    PADT, Inc.

  • DX R13: 02/17/2011 2

    Agenda • Note: This presentation is being

    recorded

    • Introductions • What 14.5 is About • ANSYS Mechanical • ANSYS Mechanical APDL • Meshing & Geometry • Other Stuff

  • DX R13: 02/17/2011 3

    Introductions

  • DX R13: 02/17/2011 4

    Upcoming Webinars • Upcoming Webinars

    – January 2013: 14.5 CFD Update – Deep dives into new 14.5 features for the first half of 2013

    • See upcoming and past webinars at:

    – padtincevents.webex.com • Click on ANSYS Webinar Series

  • DX R13: 02/17/2011 5

    About PADT • We Make Innovation Work • PADT is an Engineering Services

    Company – Mechanical Engineering – 18 Years of Growth and Happy customers – 70’ish Employees

    • 3 Business Areas – CAE Sales & Services

    • Consulting, Training, Sales, Support – Product Development – Rapid Prototyping & Manufacturing

    • Learn More: www.PADTINC.com

    We Make Innovation Work

  • DX R13: 02/17/2011 6

    Cube HVPC Systems • Balance between speed and cost

    – Mini-Cluster 96 Cores / 512 GB RAM / 6 TB Disk Mobile Rack / UPS / Monitor / Keyboard $34,900

    – Compute Server 32 Cores / 256 GB RAM / 3 TB Disk $14,250

    – Simulation Workstation (Intel) 12 Cores / 96 GB RAM / 3 TB Disk $11,750

    – Simulation Workstation (AMD) 12 Cores / 64 GB RAM / 3 TB Disk $6,300

    • www.CUBE-HVPC.com

  • DX R13: 02/17/2011 7

    PeDAL – The APDL Editor • Side-by-side editor and help viewer layout. • Instant help on any documented APDL command by pressing F1. • Full syntax highlighting for ANSYS v12 Mechanical APDL. • Auto-complete drop downs for APDL Commands. • APDL Command argument hints while typing commands. • Search ANSYS help phrases and keywords. • Multiple tabs for the editor and html viewer. • Full capability web browser built in allows for rich web experience and web

    searches.

  • DX R13: 02/17/2011 8

    PADT, Inc. – The Blog • New home for The Focus • Expanded to cover News, Product Development PADT

    Medical, The RP Resource, and fun stuff • The Focus

    – Almost weekly articles for ANSYS users – short, useful, sometimes funny.

    • The RP Resource – A new blog for Rapid Prototyping

    patterned after The Focus

    • Posts are announced through twitter and facebook

  • DX R13: 02/17/2011 9

    Connect with PADT

    Facebook: facebook.com/padtinc

    Twitter: #padtinc

    LinkedIn: Search on PADT, Inc.

    Email Subscriptions: www.padtinc.com/epubs

    Web: www.PADTINC.com

    ANSYS User Blog: padtinc.com/focus

  • DX R13: 02/17/2011 10

    ANSYS 14.5 Mechanical Cool Stuff • One hour is not enough time to cover everything • Going to skip over 2/3 of what is new, focus on what is the

    most useful – Productivity – New capability

    • More in-depth information – ANSYS, Inc. Webinars – The Release Notes – Upcoming The Focus and Webinars

  • DX R13: 02/17/2011 11

    What 14.5 is About

  • DX R13: 02/17/2011 12

    Hybrid Release • Originally intended as a quick “point release”

    – Some small changes – Bug fixes – Stuff that didn’t have time for quality approval at 14.0

    • But things change, customers ask for stuff – Schedule moved up on some key features and capabilities – Development cycle stretched a bit to fit more in

    • More than a point release, less than a major release

  • DX R13: 02/17/2011 13

    Big Themes • More meshing • Bringing the new infrastructure forward more • Greater integration between products • Performance

  • DX R13: 02/17/2011 14

    ANSYS Mechanical

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    More Flesh on the Bones – General Stuff • Coupling to remote points

    – Long needed, used APDL in the past. Now built in

    • Distance option on Named Selection Worksheet – Specify a coordinate system and a distance: sphere, cylinder, cube – Avoids multiple lines to specify

    • Random Colors – Assigns random colors to a large complex model to make it easier to

    see

    • Bolt pretension on 2D

  • DX R13: 02/17/2011 16

    • Tags – You can put names on Objects in your tree – Used with filtering – Handy way in large models to group different kinds of objects – Select object in tree and then use Add Tag in Tag window

    • Filtering – Ribbon on top of tree – Filter on:

    • Name: Object names, wildcards are implied • Tag: Tags, wildcards are impled • Type: Dropdown of all the object types • State: Dropdown of All, Not Suppressed, Suppressed,

    Not Licensed, Undefined. – Enter does a refresh and shows

    matching objects – Refresh, Clear, Expand buttons

    Tags and Filters

  • DX R13: 02/17/2011 17

    Object Generator • Copy tree objects that

    are applied to geometry to other geometry

    • You select object in the tree then the geometry you want it applied to

    • You can: – Control where it is applied through scoping – Apply a name prefix to the objects you create (very nice!) – Apply a tag to everything you create (also very useful)

    • Good example: You define a beam as a bolt in one hole, then copy it to a bunch of holes with this

    • Lots of options, play with it to learn it • Topic for future seminar or Focus article.

  • DX R13: 02/17/2011 18

    Section Planes • New Edit Section Plane button • Changes under the hood with respect to

    meshes that speed things up • Turning on Show Mesh now works with section planes • Bottom line: Allows you to drag section planes on the screen

  • DX R13: 02/17/2011 19

    Stuff that got Sped Up • Fixed some animation things to make it up to twice as fast • Graphics for very complicated assemblies sped up • Issues with copying very large tables have been resolved,

    10x faster • Cyclic symmetry worked on a lot

    – 25%-50% faster in many – A ton of memory changes and improvements to get some major

    reductions in memory that results in better times as well

  • DX R13: 02/17/2011 20

    Pre-Stress Model Superposition • You can link a modal superposition

    transient structural run to a pre-stressed modal analysis

    • In the past it was just a modal analysis

    • Now it can be pre-stressed • Shows up in details for Transient

    Initial conditions

  • DX R13: 02/17/2011 21

    Submodeling • Big Improvement in Mechanical that required

    scripting/MAPDL before • Refined model • Superimpose course model deflection/stress field onto

    detailed model • Huge time saver • Much more accurate

    solutions • At 14.5 supports

    solid elements • Thermal & Stress

  • DX R13: 02/17/2011 22

    Submodeling • Make your coarse model • Make your submodel, dragging the solution from coarse onto

    submodel setup – Don’t drag the submodel onto the coarse model

    • Supports 2D to 3D • One of the more important enhancements at 14.5

  • DX R13: 02/17/2011 23

    Fracture Mechanics • Added to Mechanical at 14.5, first steps

    – Long time in MAPDL

    • Does actual crack modeling – Generates local mesh or you can use your own mesh

    • Uses coordinate systems to specify crack position and orientation

    • A lot of features and capabilities

  • DX R13: 02/17/2011 24

    Composites • You can now do solid composites in Mechanical

    – Used to be shell only – Works with ACP

    • Very useful for – Thick geometry – Combining composites with non-composites in a single model

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    Contact: Connection Matrix • Tool for viewing how parts are connected • Lots of tools to configure it • A legend describes what the connections are • To get:

    – Click on connection branch in tree – Click on Worksheet Icon – Show preferences and click “Connection Matrix” – Generate or Refresh

  • DX R13: 02/17/2011 26

    Connections: Other • Penetration tolerance is now an option for

    Augmented Lagrange and program controlled contact

    • Force Frictional sliding and Elastic Slip are now supported

    • No separation is now supported for rigid body modeling

    • New joint: Radial gap stop! – Think of a cylinder in a cylinder with a gap and the

    inner cylinder and translate and tilt • Trim Contact option reduces contact pairs • Nonlinear stiffness for rigid body analysis

    for springs and bushings • Bearings now supported for RotorDynamics • Transducer (MEMS) now supported

  • DX R13: 02/17/2011 27

    Mesh Based Stuff: FEA • You can make a coordinate system at a node!!!!

    – Click on a node, creates – But it just uses the location of the node, not the node. It does not

    move if the node moves on a remesh

    • You can also make a coordinate system that is aligned with a principal stress or strain value

    • Result objects can be scoped to nodes- named selection • Plot elements by Named Selection • Display Node Numbers

    – Use Annotation preferences

    • Node picking on result plots

  • DX R13: 02/17/2011 28

    Load Mapping • Tools to import external loads into Mechanical • More robust and “deeper” • Faster algorithms across the board • Now forces and displacements can be mapped • User requested tools to aid in validating

    – Contours, Components, Isolines Comparison

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    Variable Data Toolbar • Used to display contours of applied values: loads, thickness,

    etc.. • When you click on something

    that can be displayed, it shows up • Use it to:

    – turn off min/max labels – Switch between smooth, banded, and iso-lines – Adjust thickness of iso-lines

  • DX R13: 02/17/2011 30

    Graphical Views • New Manage Views tool

    – This is a big productivity saver • Creepy new icon… always watching you • Click on it to bring up Manage Views Window • You can import and export XML files that define the views

    – So you can set up a library of standard views! • It will even convert the view to APDL!

    – RMB on view and choose “Copy As MAPDL Command”

    – Puts it in the clipboard – Useful for making code snippets that plot

    the same views as Mechanical • Commands to delete, apply,

    rename, and overwrite – Double click on a view to apply as well

  • DX R13: 02/17/2011 31

    Solver Control Changes • Specify that reactions only be done for constrained nodes for

    Modal Superposition Harmonic or Transient run – Makes files smaller and run times shorter

    • Additions to damping controls – Constant damping ratio – Stiffness matrix multiplier (Beta) – Mass matrix multiplier (Alpha)

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    Result Stuff • Force Reaction or Moment Reaction probe

    – Reactions on mesh connectors, remote points, grounded beams/springs

    • Reactions on cutting plans – Use reaction probe with a surface made with construction geometry

    • You can plot cyclic symmetry results on less than a full model

    • Damage results are now supported – Mullins Effect, Progressive Damage, and Physical Failure Criteria

  • DX R13: 02/17/2011 33

    Other Stuff to Note • Documentation structure changed, things got moved and

    simplified – Boundary conditions saw a major rewrite

    • Design Assessment – Supports multiple steps – LCOPER type commands now supported

    • Note, this is about 1/3 of what was changed! – Many more less critical things were done – Read the doc, ask your support provider

  • DX R13: 02/17/2011 34

    ANSYS Mechanical APDL

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    Contact • Lots being done here, mostly user driven • User Routines:

    – USERFRIC: now supports all DOF’s and Lagrange – New USERINTER to do much more complex interaction beyond

    standard contact – USERCNPROP is a new routine to create real constants in a user

    routine. Allows you to change contact properties at each substep

    • Real Constants now support tabular values – Works with primary variables (temp, pres, etc..)

    • MPC’s can now be used to couple DOF’s • 3D Node-Node (178) now supports:

    – Spherical gap – Works with most DOF’s: thermal conduction, convection, radiation,

    heat generation due to friction, external heat flux, electric conduction, and heat dissipation due to electric current.

  • DX R13: 02/17/2011 36

    2-D to 3-D Tools • New commands to make it easy to convert a 2D solution into a 3D

    solution: mesh and solution • Idea is to start in 2D then when needed, convert to 3D to continue • Requires that the geometry is extruded in a coordinate systems • EEXTRUDE command does the extruding

    – Handles contact, BC’s, loads, etc.. • MAP2DTO3D then maps the 2D results onto the 3D model as the new

    starting point • Does not work with:

    – Plane stress and generalized plane strain – Layered or reinforced elements – Enhanced strain – Distributed ANSYS – Remeshing

  • DX R13: 02/17/2011 37

    Diffusion Improved • Coupled field elements enhanced to support nonlinear

    behavior: – PLANE223, SOLID226, SOLID227 – plasticity, viscoelasticity, viscoplasticity and creep in structural-

    diffusion and structural-thermal-diffusion

    • New surface and body diffusion loading: DFLUX, DGEN – Use SF* or BF* family of commands

    • New diffusion elements: – PLANE238: 2D quadrilateral – SOLID239/240: 3D brick/tet

  • DX R13: 02/17/2011 38

    Distributed ANSYS • Lots of under-the-hood work to get it faster and more robust • Key things that users can use:

    – A new COMBINE command to combine files from multiple machines • Use this if you opted to not do the automatic combine, or something went

    wrong – Eigensolver used for Block Lanczos and Supernode now use SMP

    inside a DMP run to extract the modal solution – Mixed SMP/DMP – JCG, ICCG, QMR now all use SMP when needed within a DMP run – VT for harmonic now works with distributed – SECFUNCITON now works with DMP (shell thickness as part of a

    table)

  • DX R13: 02/17/2011 39

    GPU • Lots of work here as well • Improvements in performance

    – Modifying the code to take advantage of GPU

    – Working with supplier to improve things

    • Multiple GPU’s on one box is now supported – Distributed only for Sparce solver – SMP or DMP for PCG/JCG

    • Larger problems now work with GPU’s

    • If you have not looked at a GPU, it is time.

  • DX R13: 02/17/2011 40

    Acoustics • Additions made to the acoustics solver, mostly customer

    driven • New fluid model for sound in porousmaterial (TB, PERF)

    – Johnson-Champoux-Allard Equivalent Fluid Model of Perforated Material - if you don’t know what this is… you probably don’t need it

    • New BC for surface velocity or acceleration • Far-Field now supports 2D elements • FLUID130 infinite element that is a new acoustic boundary

    condition • Much more meat has been added to the Acoustic Theory

    sections of the Theory Reference

  • DX R13: 02/17/2011 41

    More Additions to Linear Perturbation • Extended to work with static analysis

    – Used to be just modal/buckling/harmonic stuff

    • Extended to work with PSD – Actually, PSD can now use a linear perturbation modal analysis

    • Superelements are now supported (MATRIX50) • COMBIN39 nonlinear spring works now

  • DX R13: 02/17/2011 42

    Result Files (*.rst) • Now stores element results in single precision

    – Nodal results are still double

    • Result files can be 50% smaller than files in prior releases – Lots of little changes in the way things are written – Plus principal stresses are no longer stored, they are calculated on

    the fly

    • If you have programs that read RST files, things have changed – Header is longer (80 integers instead of 40) – Multiple sets of geometry are stored in the same file – Principal stresses are gone

  • DX R13: 02/17/2011 43

    Other • Submodeling enhanced to make submodeling of non-linear

    areas more robust. • Isotropic hardening added for Chaboche Curve Fitting • Shared Memory Parallel used automatically on a PSD

    analysis • PCG solver now supports the whole MPC184 family

    – Lagrange multipliers are converted to MPC’s to make it work – LM_Key= ON on the PCGOPT command

  • DX R13: 02/17/2011 44

    Undocumented Stuff • The Variation Technology (VT) commands are now undocumented

    – /VT and VT* – Used for probabilistics – Does not impact VT solver tools with cyclic symmetry or harmonic analysis

    • Reduced Harmonic and Transient methods are gone • The TOTAL command is gone

    – Used to get Master DOF’s for reduced modal • PGR file is no longer supported

    – Bummer – compact result file but never really used • SOLID62 – old magneto solid element • INTER115 – couples magnetic vector and scalar potentials • FLUID79/80/81 are all archived (soon to be undocumented)

    – Contained fluid elements – I question this one. If you use it, speak up!

  • DX R13: 02/17/2011 45

    Meshing & Geometry

  • DX R13: 02/17/2011 46

    Design Modeler • Lots of bug fixes and performance tweaks • Focus on improving performance on big models • Lots of work on dealing with DM (NURBS) vs. Workbench (facets) geometry

    – Impacts performance, files size, repair – If you don’t need NURBS, don’t use NURBS – Facets are much easier to repair – Converting from NURBS to facets can be slow

    • DM now supports both faceted and NURB geometry (WB or DM)

    – Imported geometry can be set to Workbench or Design Modeler – Conversion from WB to DM is automatic if you operate on it – User can use new Conversion tool to force conversion to NURBS

    • Importing of points/curves now supports a base plane • You can now do a slice on a shared topology solid

    – This is kind of a big one

    • There is now a preview circle that shows when you are doing an operation that involves a range, gap, or size.

    – Lets you gage your sizes visually

  • DX R13: 02/17/2011 47

    CAD Integration • Smart Update

    – Only updates entities that have changed – Added for PTC Creo and Autodesk Inventor – Dropped for Siemens NX

    • Supported Versions: – Autodesk Inventor 2013 – ACIS 22 – CATIA V5–6R2012 (Spatial reader only) – Creo Elements/Pro (Pro/ENGINEER) Creo Parametric 2.0 – Creo Elements/Direct Modeling 18.1 – Parasolid 24.1 – SolidWorks 2012

  • DX R13: 02/17/2011 48

    Meshing: Quad Tri Meshing Consolidated • Retired this meshing methods: Uniform Quad/Tri and Uniform Quad • Replaced with MultiZone Quad/Tri Method

    – With Free Face Mesh Type set to All Quad • Should produce similar meshes • When you resume an older database, the methods will be changed

    automatically • Enhanced as well:

    – Two surface mesh methods now: Uniform recursive loop splitting vs. paving. • Paving works well on high curvature faces

    – Free Face Mesh Type option: all quad, all tri, or combination

    – Advanced size functions supported – Soft or Hard behavior option now supported – Multiple Inflation Algorithms supported

    Surface mesh method = Uniform

    Surface mesh method = Pave

  • DX R13: 02/17/2011 49

    Meshing: Multizone • Lots of robustness under the hood so it works in more cases • Surface Mesh method from Quad/Tri works with Multizone

    as well (uniform vs paving) • Advanced Size Function and Behavior (hard/soft) are now

    supported for Multizone

  • DX R13: 02/17/2011 50

    Meshing: Other • The object generator works with mesh controls as well • You can turn off showing the mesh when you click on the

    mesh branch in the tree – For very large models, this can slow things down – Tools->Options->Mechanical->Graphics->Mesh Visibility = Manual – Then use “Show Mesh” icon to turn on and off]

    • ICEM CFD can now be fully put into a project as a system – Data compliant application – New menu items to support it: Refresh, save, update – Passes parameters

  • DX R13: 02/17/2011 51

    Other Stuff

  • DX R13: 02/17/2011 52

    Project Page • Design Points have been enhanced

    – A true full update is now done including Exported DP’s – RSM enhanced to support multiple runs on multiple machines

    • Use Maximum Number of Jobs to specify how many jobs you want to break it up into

    • New Add Note RMB for Project, system or a cell – Excel style notes – Useful way to add documentation

  • DX R13: 02/17/2011 53

    ANSYS Logo • You can now decide if you want a Black, White, or No

    ANSYS logo in your Workbench applications – Tools->Options->Appearance->ANSYS Logo

    • If you change your background or don’t want the ANSYS logo, this is how you do it

  • DX R13: 02/17/2011 54

    Engineering Data • Shape Memory Alloy has been added • New Hyperelastic Material Models

    – Ogden Compressible Foam – Extended Tube

    • Enthalpy is now available for Transient Thermal analysis • New Material Damage models

    – Damage Initiation Criteria – Damage Evolution Law

  • DX R13: 02/17/2011 55

    RSM – Remote Solve Manager • New setup wizard and overall setup is improved • Lots of work on robustness • You can now exit the project when doing a Solution update

    or a Design Points update – You need to do a retrieve to get the results

    • Parallel – Support under Component Execution Mode for specifying that a given

    run use parallel • Max Number of Processes per Job determines number of cores

    – Maximum Number of Jobs runs design point updates on multiple machines

    • You need licenses for each run or the new HPC Parametric Pack

  • DX R13: 02/17/2011 56

    Multiphysics (System Coupling) • Lots of work hooking up more physics and making things

    work better • New for thermal:

    – One way external data temperature to FLUENT and Mechanical – One way external data bulk temperature and HTC to mechanical

    • FSI: – Support for linear ramping of loads on 2-way FSI – FLUENT 6-DOF motion enabled for 2-way FSI

    • In general, more feedback on coupling

  • DX R13: 02/17/2011 57

    FLOTRAN • FLOTRAN is no longer

    supported • The end of something

    special • Never the best CFD tool… • But:

    – The first true multiphysics FSI in one tool

    – Scriptable, parametric CFD – The first acquisition by

    ANSYS, Inc. (Swanson Analysis actually)

  • DX R13: 02/17/2011 58

    Licensing • You can no longer server a license from Sun Solaris x64 or

    Linux Itanium 64 • HPC Parametric Packs now available

    – Like HPC Packs, but for parametric studies

    • The ANSYS License manager can be installed anywhere on a Windows machine

  • DX R13: 02/17/2011 59

    Thank You… • PADT Enjoys doing these webinars… • Please consider us as your partner • ANSYS Related

    – Training, Mentoring – Consulting Services – Customization – Sales (if in AZ, NM, CO, UT, NV)

    • Stratasys 3D Printers and Systems • CUBE HVPC Systems • Product Development

    – High-end engineering with practical, real world application • Rapid Prototyping

    – SLA, SLS, FDM, PolyJet, CNC, Soft Tooling, Injection Molding

    • Help us by letting us Help you

    New and Cool Stuff in ANSYS R14.5 Mechanical ProductsAgendaIntroductionsUpcoming WebinarsAbout PADTCube HVPC Systems PeDAL – The APDL EditorPADT, Inc. – The BlogConnect with PADTANSYS 14.5 Mechanical Cool StuffWhat 14.5 is AboutHybrid ReleaseBig ThemesANSYS MechanicalMore Flesh on the Bones – General StuffTags and FiltersObject GeneratorSection PlanesStuff that got Sped UpPre-Stress Model SuperpositionSubmodelingSubmodelingFracture MechanicsCompositesContact: Connection MatrixConnections: OtherMesh Based Stuff: FEALoad MappingVariable Data ToolbarGraphical ViewsSolver Control ChangesResult StuffOther Stuff to NoteANSYS Mechanical APDLContact2-D to 3-D ToolsDiffusion ImprovedDistributed ANSYSGPUAcousticsMore Additions to Linear PerturbationResult Files (*.rst)OtherUndocumented StuffMeshing & GeometryDesign ModelerCAD IntegrationMeshing: Quad Tri Meshing ConsolidatedMeshing: MultizoneMeshing: OtherOther StuffProject PageANSYS LogoEngineering DataRSM – Remote Solve ManagerMultiphysics (System Coupling)FLOTRANLicensingThank You…