Mechanical APDL Basic Analysis Guide - Ansys

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Chapter 20: File Management and Files 20.10. Other File Management Commands Table 20.6: Additional File Management Commands and GUI Equivalents (p. 306) lists other useful file management commands. Table 20.6 Additional File Management Commands and GUI Equivalents Command /COPY /CLOG /RE- NAME /DELETE /FDELE 306 GUI Path Utility Menu> File> File Operations> Copy None Utility Menu> File> File Operations> Rename Utility Menu> File> File Operations> Delete Utility Menu> File> ANSYS File Options Purpose Copy existing binary files from within ANSYS Copy the log file during an interactive ANSYS session Rename files Delete files Delete certain files during a solution run (to save disk space) Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates.
Chapter 21: Memory Management and Configuration The amount of physical memory (RAM) available on your computer is called real memory. The minimum amount of real memory recommended for the ANSYS program varies from system to system and is listed in your ANSYS, Inc. Installation Guide. It is helpful to understand the ANSYS memory-management scheme and some frequently used terms concerning computer memory. The following memory-management topics are available: 21.1. ANSYS Work and Swap Space Requirements 21.2. How ANSYS Uses its Work Space 21.3. How and When to Perform Memory Management 21.4. Using the Configuration File 21.5. Understanding ANSYS Memory Error Messages To learn how to improve the performance of the ANSYS program, see "Using Shared-Memory ANSYS" in the Advanced Analysis Techniques Guide. 21.1. ANSYS Work and Swap Space Requirements The ANSYS program requires some space to reside in memory, plus additional work space. The ANSYS work space defaults to 1 GB (1024 MB) for 64-bit machines, and 512 MB for 32-bit machines (Linux and Windows). As shown in Figure 21.1 (p. 307), the total memory required for the ANSYS program usually exceeds the amount of real memory available. The additional memory comes from system virtual memory, which is simply a portion of the computer's hard disk used by the system to supplement physical memory. The disk space used for system virtual memory is called swap space, and the file is called the swap file. On some systems it is referred to as a page file. Other systems maintain multiple files, or even dedicated disk sectors to act as virtual memory. The amount of swap space required for the ANSYS program depends on the amount of real memory available, the size of the ANSYS executable, and the amount of ANSYS work space. Figure 21.1 Comparing Available Memory System virtual memory is used to satisfy additional ANSYS memory requirements. 21.2. How ANSYS Uses its Work Space To understand how ANSYS uses its work space (the shaded portion in Figure 21.1 (p. 307)), you need to understand its two components: database space and scratch space, as shown in Figure 21.2 (p. 308). Database space is used to work with the ANSYS database (model geometry, material properties, loads, etc.). Scratch Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates. 307
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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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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
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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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Page 303 and 304: 19.4.1.1. Creating a Custom Table I
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Page 307 and 308: Button or Field DYNAMIC DATA REPORT
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Page 313 and 314: Chapter 20: File Management and Fil
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Page 325 and 326: 21.3.3. Changing Database Space Fro
Page 327 and 328: Figure 21.4 Dividing Work Space ANS
Page 329 and 330: NUM_BUFR is the number of buffers p
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Page 333 and 334: Index Symbols 3-D graphics devices,
Page 335 and 336: path plots, 142 POST26 graphs, 200
Page 337 and 338: 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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