Mechanical APDL Basic Analysis Guide - Ansys

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Chapter 7:The General Postprocessor (POST1) 13 28 14 30 15 33 16 35 17 38 Only the mapped nodes will contribute to the MAC calculations. Important notes: • Nodes that are coincident may lead to erroneous interpolation. For example, this can occur in the case of spring/mass systems attached to solid elements. • If nodes and/or elements are selected (using the NSEL and/or ESEL commands), the results of the mapping and/or the interpolation will show differences. • If the OUTRES command is used to reduce the solution data written on the first results file (File1), the interpolation may be incorrect. For example, this can occur when an element does not have all its nodes in the results file. It is recommended that you use the OUTRES command only when generating the second results file (File2). This option is not supported when comparing cyclic symmetric structure results. 7.4.8.3. Evaluate MAC Between Solutions at Matched/Mapped Nodes The Modal Assurance Criterion printout for interpolated solutions (mapped nodes) is as follows: ****** Modal Assurance Criterion (MAC) VALUES ****** Solutions are real Rows: 10 substeps in load step 1 interpolated from file tsolid.rst Columns: 10 substeps in load step 1 from file tbeam.rst 1 2 3 4 5 6 7 8 9 10 1 1.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2 0.000 1.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 3 0.000 0.000 1.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 4 0.000 0.000 0.000 1.000 0.000 0.000 0.000 0.000 0.000 0.000 5 0.000 0.000 0.000 0.000 1.000 0.000 0.000 0.000 0.000 0.000 6 0.000 0.000 0.000 0.000 0.000 1.000 0.000 0.000 0.000 0.000 7 0.000 0.000 0.000 0.000 0.000 0.000 1.000 0.000 0.000 0.000 8 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.000 0.000 0.000 9 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.000 0.000 10 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.000 7.4.8.4. Match the Solutions The Matched Solutions printout for interpolated solutions (mapped nodes) is as follows: 186 ********************************** MATCHED SOLUTIONS ********************************** Substep in Substep in MAC value Frequency Frequency tsolid.rst tbeam.rst difference (Hz) error (%) (interpolated) 1 1 1.000 0.10E-01 0.2 2 2 1.000 -0.47E-02 0.1 3 3 1.000 0.26E-01 0.2 4 4 1.000 0.27E-01 0.1 5 5 1.000 0.40E-01 0.1 6 6 1.000 0.13E+00 0.2 7 7 1.000 0.11E+00 0.2 8 8 1.000 0.82E-01 0.1 9 9 1.000 -0.12E+00 0.1 10 10 1.000 -0.96E+00 0.6 Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates.
7.4.8. Comparing Nodal Solutions From Two Models (RSTMAC) If no pair of solutions has a MAC value greater than the minimum acceptable value specified (MacLim on the RSTMAC command), the matching of the solutions is failing. The default limit is set to 0.9. Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates. 187
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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
Page 151 and 152: The ETABLE command documentation li
Page 153 and 154: • Path plots • Reaction force d
Page 155 and 156: The PLETAB command contours data st
Page 157 and 158: PLDISP,1 ! Deformed shape superimpo
Page 159 and 160: 7.2.1.6. Particle Flow and Charged
Page 161 and 162: • Particle flow traces occasional
Page 163 and 164: The surfaces you create fall into t
Page 165 and 166: You can opt to archive all defined
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Page 169 and 170: Sample PRETAB and SSUM Output *****
Page 171 and 172: 7.2.5. Mapping Results onto a Path
Page 173 and 174: Command(s): PDEF GUI: Main Menu> Ge
Page 175 and 176: To retrieve path information from a
Page 177 and 178: 7.2.6. Estimating Solution Error On
Page 179 and 180: Write Results - You can use the dat
Page 181 and 182: NOTE: When you append data to your
Page 183 and 184: EMF - Windows Enhanced Metafile For
Page 185 and 186: Figure 7.20 The PGR File Options Di
Page 187 and 188: 7.4.8. Comparing Nodal Solutions Fr
Page 189 and 190: the effect of the rigid body rotati
Page 191 and 192: The SADD command (Main Menu> Genera
Page 193 and 194: To view correct mid-surface results
Page 195 and 196: To get usable results combine the r
Page 197 and 198: 7.4.4. Mapping Results onto a Diffe
Page 199 and 200: • EMF (Main Menu> General Postpro
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Page 205 and 206: Chapter 8: The Time-History Postpro
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
Page 213 and 214: !derivative of variable 2 with resp
Page 215 and 216: The above command assumes that you
Page 217 and 218: When plotting complex data such as
Page 219 and 220: Sample Output from EXTREM time-hist
Page 221 and 222: 5. Select the variables to be opera
Page 223 and 224: RESP requires two previously define
Page 225 and 226: Chapter 9: Selecting and Components
Page 227 and 228: Note Crossover commands for selecti
Page 229 and 230: would put UX and UZ constraints on
Page 231 and 232: The Command Reference describes the
Page 233 and 234: Chapter 10: Getting Started with Gr
Page 235 and 236: Remote Network Access Hidden Line R
Page 237 and 238: 10.4.1. Adjusting Input Focus To en
Page 239 and 240: • If the environment variable SB_
Page 241 and 242: 10.5.5. Erasing the Current Display
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Page 245 and 246: 11.3.1. Changing the Viewing Direct
Page 247 and 248: 11.4. Controlling Miscellaneous Tex
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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
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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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