Mechanical APDL Basic Analysis Guide - Ansys

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Chapter 8:The Time-History Postprocessor (POST26) 8.6.2. Batch Mode Exporting data from a time-history variable into a file is a two step process: 1. Export a time-history variable data to an array parameter. The command VGET allows you to export a single time-history variable into a properly dimensioned ( *DIM ) array parameter. The size of this array can be determined via *GET ,size,vari,,nsets. 2. Once the array is filled then the data can be written out to a file via *VWRITE command as shown below. Example: NSOL,5,55,U,X STORE,MERGE ! Store UX at node 55 *GET,size,VARI,,NSETS *dim,UX55,array,size ! Create array parameter VGET,UX55(1),5 ! Store time history data of variable 5 into ux55 *CFOPEN,disp,dat *VWRITE,UX55(1) ! Write array in given format to file "disp.dat" (6x,f12.6) *CFCLOSE 8.7. Reviewing the Variables Once the variables are defined, you can review them via graph plots or tabular listings. 8.7.1. Plotting Result Graphs The description for graph plotting, both with the variable viewer and from the command line follows: 8.7.1.1. Interactive The "Graph Data" button in the variable viewer allows you to plot all the selected variables. A maximum of 10 variables can be plotted on a single graph. By default, the variable used for the X-axis of the graphs is TIME for static and transient analyses or FREQUENCY for harmonic analysis. You can select a different variable for the X-axis of the graph using the radio button under the column X-AXIS in the list of variables. When plotting complex data such as from a harmonic analysis, use the 'results to view' drop-down list on the right top corner of the variable viewer to indicate whether to plot Amplitude (default), Phase angle, Real part or Imaginary part. The variable viewer stores all the time points available on the results file. You can display a portion of this data by selecting a range for the X-axis value. This is useful when you want to focus on the response around a certain time point e.g., around the moment of impact in a drop test analysis. This is available in the "Data Properties" dialog under the X-AXIS tab. Note that this is a global setting i.e. this setting is used for all subsequent graph plots. 8.7.1.2. Batch The PLVAR command ( Main Menu> TimeHist Postpro> Graph variables) graphs up to 10 variables at a time on a graph. By default, the variable used for the X-axis of the graphs is TIME for static and transient analyses or FREQUENCY for harmonic analysis. You can specify a different variable for the X-axis (e.g. deflection or strain) by using the XVAR command (Main Menu> TimeHist Postpro> Settings> Graph). 200 Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates.
When plotting complex data such as from a harmonic analysis, PLVAR plots amplitude by default. You can switch to plotting Phase angle or Real part or Imaginary part via the PLCPLX command (Main menu> TimeHist Postpro> Settings> Graph). You can display a portion of the stored data by selecting a range for the X-axis values via the /XRANGE command. Two sample plots are shown below: Figure 8.1 Time-History Plot Using XVAR = 1 (time) Figure 8.2 Time-History Plot Using XVAR ≠ 1 For more information on adjusting the look and feel of your graph plots, see Creating Graphs (p. 257) later on in this manual. 8.7.2. Listing Your Results in Tabular Form To create tabular data lists, both interactively and from the command line, use the following procedures. Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates. 8.7.2. Listing Your Results in Tabular Form 201
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ANSYS Mechanical APDL Basic Analysi
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Table of Contents 1. Getting Starte
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2.8.4.3. Define Material Properties
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7.2.1.6. Particle Flow and Charged
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10. Getting Started with Graphics .
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13.2.4.1.Turning Load Symbols and C
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20.8. Reviewing Contents of Binary
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List of Tables 2.1. DOF Constraints
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Chapter 1: Getting Started with ANS
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shown below define two element type
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You can choose constant, isotropic,
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You can save linear material proper
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Figure 1.4 Material Model Interface
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Figure 1.7 Data Input Dialog Box -
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The first example below is intended
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9. Click on OK. The dialog box clos
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1.1.4.9. Reading a Material Library
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If you are performing a static or f
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Chapter 2: Loading The primary obje
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Figure 2.2 Transient Load History C
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The arc-length method is an advance
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• Transferred solid loads will re
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Note If the node rotation angles th
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Figure 2.7 Scaling Temperature Cons
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Below are examples of some of the G
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Utility Menu> List> Loads> Surface>
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Figure 2.9 Example of Surface Load
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the shell, and 270° to 360° for t
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Below are examples of some of the G
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Figure 2.15 Transfers to BFK Loads
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CASE C: At least one BFV, BFA, or B
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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
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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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Page 169 and 170: Sample PRETAB and SSUM Output *****
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Page 179 and 180: Write Results - You can use the dat
Page 181 and 182: NOTE: When you append data to your
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Page 185 and 186: Figure 7.20 The PGR File Options Di
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Page 201 and 202: 7.4.8.1. Matching the Nodes The Mec
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Page 207 and 208: enables the alternate selections sh
Page 209 and 210: 1. Click on the Add Data button. Re
Page 211 and 212: APPEND Appends data to previously s
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Page 227 and 228: Note Crossover commands for selecti
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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
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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
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material model interface, 8 materia
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multiframe, 117 restarting an analy
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WINDOW command, 227 Windows graphic
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