Mechanical APDL Basic Analysis Guide - Ansys

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ANSYS Mechanical APDL Basic Analysis Guide 18.3. Using the DISPLAY Program to View and Translate Neutral Graphics Files ...................................... 277 18.3.1. Getting Started with the DISPLAY Program .......................................................................... 278 18.3.2. Viewing Static Images on a Terminal Screen ........................................................................ 278 18.3.3. Viewing Animated Sequences on a Screen .......................................................................... 279 18.3.4. Capturing Animated Sequences Offline .............................................................................. 279 18.3.5. Exporting Files to Desktop Publishing or Word Processing Programs .................................... 280 18.3.5.1. Exporting Files on a UNIX System ............................................................................... 280 18.3.5.2. Exporting Files on a Windows System ......................................................................... 280 18.3.6. Editing the Neutral Graphics File with the UNIX GUI ............................................................. 281 18.4. Obtaining Hardcopy Plots ........................................................................................................... 281 18.4.1. Activating the Hardcopy Capability of Your Terminal on UNIX Systems ................................. 281 18.4.2. Obtaining Hardcopy on External Devices Using the DISPLAY Program ................................. 281 18.4.3. Printing Graphics Displays on a Windows-Supported Printer ................................................ 281 19. The Report Generator ....................................................................................................................... 283 19.1. Starting the Report Generator ..................................................................................................... 283 19.1.1. Specifying a Location for Captured Data and Reports .......................................................... 284 19.1.2. Understanding the Behavior of the ANSYS Graphics Window ............................................... 284 19.1.3. A Note About the Graphics File Format ............................................................................... 284 19.2. Capturing an Image .................................................................................................................... 284 19.2.1. Interactive .......................................................................................................................... 284 19.2.2. Batch ................................................................................................................................. 285 19.3. Capturing Animation .................................................................................................................. 285 19.3.1. Interactive .......................................................................................................................... 285 19.3.2. Batch ................................................................................................................................. 286 19.4. Capturing a Data Table ................................................................................................................ 286 19.4.1. Interactive .......................................................................................................................... 286 19.4.1.1. Creating a Custom Table ............................................................................................ 287 19.4.2. Batch ................................................................................................................................. 287 19.5. Capturing a Listing ...................................................................................................................... 289 19.5.1. Interactive .......................................................................................................................... 289 19.5.2. Batch ................................................................................................................................. 289 19.6. Assembling a Report ................................................................................................................... 290 19.6.1. Interactive Report Assembly ............................................................................................... 290 19.6.2. Batch Report Assembly ....................................................................................................... 292 19.6.3. Report Assembly Using the JavaScript Interface .................................................................. 292 19.6.3.1. Inserting an Image ..................................................................................................... 292 19.6.3.2. Inserting an Animation .............................................................................................. 293 19.6.3.3. Inserting a Data Table ................................................................................................ 294 19.6.3.4. Inserting a Listing ...................................................................................................... 294 19.7. Setting Report Generator Defaults ............................................................................................... 295 20. File Management and Files ............................................................................................................... 297 20.1. File Management Overview ......................................................................................................... 297 20.1.1. Executing the Run Interactive Now or DISPLAY Programs from Windows Explorer ................ 297 20.2. Changing the Default File Name .................................................................................................. 298 20.3. Sending Output to Screens, Files, or Both ..................................................................................... 298 20.4. Text Versus Binary Files ................................................................................................................ 299 20.4.1. ANSYS Binary Files over NFS ................................................................................................ 299 20.4.2. Files that ANSYS Writes ....................................................................................................... 299 20.4.3. File Compression ................................................................................................................ 303 20.5. Reading Your Own Files into the ANSYS Program ......................................................................... 303 20.6.Writing Your Own ANSYS Files from the ANSYS Program ............................................................... 304 20.7. Assigning Different File Names .................................................................................................... 305 xii Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates.
20.8. Reviewing Contents of Binary Files (AUX2) ................................................................................... 305 20.9. Operating on Results Files (AUX3) ................................................................................................ 305 20.10. Other File Management Commands .......................................................................................... 306 21. Memory Management and Configuration ........................................................................................ 307 21.1. ANSYS Work and Swap Space Requirements ................................................................................ 307 21.2. How ANSYS Uses its Work Space .................................................................................................. 307 21.3. How and When to Perform Memory Management ....................................................................... 308 21.3.1. Allocating Memory to ANSYS Manually ............................................................................... 309 21.3.2. Changing the Amount of ANSYS Work Space ....................................................................... 309 21.3.3. Changing Database Space From the Default ....................................................................... 310 21.4. Using the Configuration File ........................................................................................................ 312 21.5. Understanding ANSYS Memory Error Messages ........................................................................... 315 Index ........................................................................................................................................................ 317 List of Figures 1.1. Sample MPPLOT Display ......................................................................................................................... 6 1.2. Sample TBPLOT Display .......................................................................................................................... 7 1.3. Material Model Interface Initial Screen ..................................................................................................... 8 1.4. Material Model Interface Tree Structure ................................................................................................... 9 1.5. A Data Input Dialog Box .......................................................................................................................... 9 1.6. Data Input Dialog Box - Added Column ................................................................................................. 10 1.7. Data Input Dialog Box - Added Row ....................................................................................................... 11 1.8. Sample Finite Element Models .............................................................................................................. 18 2.1. Loads ................................................................................................................................................... 21 2.2. Transient Load History Curve ................................................................................................................. 23 2.3. Load Steps, Substeps, and Equilibrium Iterations .................................................................................... 24 2.4. Stepped Versus Ramped Loads .............................................................................................................. 25 2.5. Symmetry and Antisymmetry Boundary Conditions .............................................................................. 29 2.6. Examples of Boundary Conditions ......................................................................................................... 29 2.7. Scaling Temperature Constraints with DSCALE ...................................................................................... 31 2.8. Example of Beam Surface Loads ............................................................................................................ 35 2.9. Example of Surface Load Gradient ......................................................................................................... 37 2.10.Tapered Load on a Cylindrical Shell ...................................................................................................... 38 2.11. Violation of Guideline 2 (left) and Guideline 1 (right) ............................................................................ 38 2.12. BFE Load Locations ............................................................................................................................. 41 2.13. BFE Load Locations for Shell Elements ................................................................................................. 42 2.14. BFE Load Locations for Beam and Pipe Elements ................................................................................. 42 2.15.Transfers to BFK Loads to Nodes .......................................................................................................... 43 2.16. Concentrated Axisymmetric Loads ...................................................................................................... 48 2.17. Central Constraint for Solid Axisymmetric Structure ............................................................................. 48 2.18. Pressure Distribution for Load Case 1 ................................................................................................... 54 2.19. Pressue Distribution for Load Case 2 .................................................................................................... 54 2.20. Pretension Definition .......................................................................................................................... 64 2.21. Initial Meshed Structure ...................................................................................................................... 66 2.22. Pretension Section .............................................................................................................................. 67 2.23. Pretension Stress ................................................................................................................................ 68 5.1. Solution Controls Dialog Box ............................................................................................................... 107 5.2. PGR File Options ................................................................................................................................. 111 5.3. Examples of Time-Varying Loads ......................................................................................................... 115 6.1. A Typical POST1 Contour Display ......................................................................................................... 127 Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates. ANSYS Mechanical APDL Basic Analysis Guide xiii
Page 1 and 2: ANSYS Mechanical APDL Basic Analysi
Page 3 and 4: Table of Contents 1. Getting Starte
Page 5 and 6: 2.8.4.3. Define Material Properties
Page 7 and 8: 7.2.1.6. Particle Flow and Charged
Page 9 and 10: 10. Getting Started with Graphics .
Page 11: 13.2.4.1.Turning Load Symbols and C
Page 15 and 16: List of Tables 2.1. DOF Constraints
Page 17 and 18: Chapter 1: Getting Started with ANS
Page 19 and 20: shown below define two element type
Page 21 and 22: You can choose constant, isotropic,
Page 23 and 24: You can save linear material proper
Page 25 and 26: Figure 1.4 Material Model Interface
Page 27 and 28: Figure 1.7 Data Input Dialog Box -
Page 29 and 30: The first example below is intended
Page 31 and 32: 9. Click on OK. The dialog box clos
Page 33 and 34: 1.1.4.9. Reading a Material Library
Page 35 and 36: If you are performing a static or f
Page 37 and 38: Chapter 2: Loading The primary obje
Page 39 and 40: Figure 2.2 Transient Load History C
Page 41 and 42: The arc-length method is an advance
Page 43 and 44: • Transferred solid loads will re
Page 45 and 46: Note If the node rotation angles th
Page 47 and 48: Figure 2.7 Scaling Temperature Cons
Page 49 and 50: Below are examples of some of the G
Page 51 and 52: Utility Menu> List> Loads> Surface>
Page 53 and 54: Figure 2.9 Example of Surface Load
Page 55 and 56: the shell, and 270° to 360° for t
Page 57 and 58: Below are examples of some of the G
Page 59 and 60: Figure 2.15 Transfers to BFK Loads
Page 61 and 62: CASE C: At least one BFV, BFA, or B
Page 63 and 64:
A handy way to specify density so t
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For more information, see Initial S
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Boundary Condition Heat Flux Film C
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This problem consists of a thermal-
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2.6. Specifying Load Step Options A
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- All loads changed in later load s
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Main Menu> Preprocessor> Loads> Loa
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Command GUI Menu Paths Main Menu> S
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! Load Step 1: D, ... ! Loads SF, .
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Modeling> Create> Elements> Auto Nu
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Figure 2.22 Pretension Section Samp
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cylind,0.35,1, 0.75,1, 0,180 wpstyl
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11. Select Utility Menu> PlotCtrls>
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24. Select Utility Menu> Plot> Comp
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Chapter 3: Using the Function Tool
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Hint: A common error is a divide-by
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3.3. Using the Function Loader When
Page 97 and 98:
2. Define the convection boundary c
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7. Optional: Enter comments for thi
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3.6.1. Graphing a Function From the
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Chapter 4: Initial State The term i
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inis,defi,,,1,,100,200,150 inis,def
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applies an equal stress of SX = 100
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4.7.2. Example: Initial Stress Prob
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inis,defi,all,all,all,all,0.1,,, in
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Chapter 5: Solution In the solution
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Solver Typical Applications * In to
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used. Running the distributed spars
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With all iterative solvers, be part
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5.3.3. Disk Space (I/O) and Postpro
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If your analysis is either static o
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Note Whether you make changes to on
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Figure 5.2 PGR File Options From th
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GUI: Main Menu> Solution> Current L
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Figure 5.3 Examples of Time-Varying
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Requirements for Performing an Anal
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*dim,temtbl,table,4,1,,time ! Defin
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5.9.1.1.1. Multiframe Restart Limit
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prnsol finish 5.9.2. VT Accelerator
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5.12. Stopping Solution After Matri
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Chapter 6: An Overview of Postproce
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each element. Derived data are also
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Chapter 7: The General Postprocesso
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Although not required for postproce
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The ETABLE command documentation li
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• Path plots • Reaction force d
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The PLETAB command contours data st
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PLDISP,1 ! Deformed shape superimpo
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7.2.1.6. Particle Flow and Charged
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• Particle flow traces occasional
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The surfaces you create fall into t
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You can opt to archive all defined
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19 41.811 51.777 .00000E+00 -66.760
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Sample PRETAB and SSUM Output *****
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7.2.5. Mapping Results onto a Path
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Command(s): PDEF GUI: Main Menu> Ge
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To retrieve path information from a
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7.2.6. Estimating Solution Error On
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Write Results - You can use the dat
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NOTE: When you append data to your
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EMF - Windows Enhanced Metafile For
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Figure 7.20 The PGR File Options Di
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7.4.8. Comparing Nodal Solutions Fr
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the effect of the rigid body rotati
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The SADD command (Main Menu> Genera
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To view correct mid-surface results
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To get usable results combine the r
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7.4.4. Mapping Results onto a Diffe
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• EMF (Main Menu> General Postpro
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7.4.8.1. Matching the Nodes The Mec
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7.4.8. Comparing Nodal Solutions Fr
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Chapter 8: The Time-History Postpro
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enables the alternate selections sh
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1. Click on the Add Data button. Re
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APPEND Appends data to previously s
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!derivative of variable 2 with resp
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The above command assumes that you
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When plotting complex data such as
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Sample Output from EXTREM time-hist
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5. Select the variables to be opera
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RESP requires two previously define
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Chapter 9: Selecting and Components
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Note Crossover commands for selecti
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would put UX and UZ constraints on
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The Command Reference describes the
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Chapter 10: Getting Started with Gr
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Remote Network Access Hidden Line R
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10.4.1. Adjusting Input Focus To en
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• If the environment variable SB_
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10.5.5. Erasing the Current Display
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Chapter 11: General Graphics Specif
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11.3.1. Changing the Viewing Direct
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11.4. Controlling Miscellaneous Tex
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11.4.3. Controlling the Location of
Page 251 and 252:
Chapter 12: PowerGraphics Two metho
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The subgrid approach affects both t
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Chapter 13: Creating Geometry Displ
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Figure 13.1 Element Plot of SOLID65
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13.2.1.12. Vector Versus Raster Mod
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Figure 13.2 Create Best Quality Ima
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13.2.3.2. Choosing a Format for the
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Chapter 14: Creating Geometric Resu
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Figure 14.2 A Typical ANSYS Results
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• Changing the contour interval.
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14.5. Isosurface Techniques Isosurf
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Chapter 15: Creating Graphs If you
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Establishing separate Y-axis scales
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15.2.3.5. Defining the TIME (or, Fo
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Chapter 16: Annotation A common ste
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16.3. 3-D Annotation 3-D text and g
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Chapter 17: Animation Animation is
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• ANMODE (Utility Menu> PlotCtrls
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Figure 17.2 The Animation Controlle
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Note If you are doing animation fro
Page 291 and 292:
Chapter 18: External Graphics Besid
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18.1.4. Exporting Graphics in UNIX
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Note The commands discussed in this
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18.3.6. Editing the Neutral Graphic
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Chapter 19: The Report Generator Th
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2. Specify a caption for the captur
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19.4.1.1. Creating a Custom Table I
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Table ID 46 47 48 Description Compo
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Button or Field DYNAMIC DATA REPORT
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The HTML tag to begin JavaScript co
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listingName A unique listing name a
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Chapter 20: File Management and Fil
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20.4. Text Versus Binary Files Depe
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Identifier ELEM EMAT ERR ESAV FATG
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20.4.3. File Compression Many file
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You can also redirect graphics outp
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Chapter 21: Memory Management and C
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21.3.3. Changing Database Space Fro
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Figure 21.4 Dividing Work Space ANS
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NUM_BUFR is the number of buffers p
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een chosen for efficient running of
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Index Symbols 3-D graphics devices,
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path plots, 142 POST26 graphs, 200
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fatigue graphs, 257 files, 277 focu
Page 339 and 340:
material model interface, 8 materia
Page 341 and 342:
multiframe, 117 restarting an analy
Page 343 and 344:
WINDOW command, 227 Windows graphic
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