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1-1 ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.February 23, 2009
Inventory #002593
Workbench - Mechanical Introduction 12.0
Chapter 1
Introduction
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Introduction
1-2 ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.February 23, 2009
Inventory #002593
T raining Manual Welcome!
Welcome to the ANSYS Mechanical application introductory training course!
This training course covers the basics of using ANSYS Mechanical inperforming structural and thermal analyses.
It is intended for all new or occasional ANSYS Mechanical users, regardless
of the CAD software used.
Course Objectives: General understanding of the user interface, as related to geometry import, meshing,
application of loads and supports, and postprocessing
Procedure for performing FEA simulations, including linear static, modal, and harmonic
structural analyses and nonlinear steady-state thermal analyses
Utilizing parameters for µwhat-if¶ scenarios
Interfacing with the ANSYS solver for more advanced functionality
± Training Courses are also available covering the use of other
Workbench modules(e.g. DesignM od el er, Design Exploration, etc.) .
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T raining Manual Agenda (Day 1)
9:00 ± 10:00 Lecture ± Introduction
10:00 ± 11:30 Lecture ± Chapter 2: Mechanical Basics
11:30 ± 12:00 Workshop 2.1 ± ANSYS Mechanical Basics
12:00 ± 1:00 Lunch
1:00 ± 1:45 Lecture ± Chapter 3: General Preprocessing
1:45 ± 2:15 Workshop 3.1 ± Contact Control
2:15 ± 3:15 Lecture ± Chapter 3: General Preprocessing (cont.)
3:15 ± 3:45 Workshop 3.2 ± Meshing Control
3:45 ± 5:00 Lecture ± Chapter 4: Static Structural Analysis
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T raining Manual Agenda (Day 2)
9:00 ± 9:30 Workshop 4.1 ± Linear Structural Analysis
9:30 ± 10:00 Lecture ± Chapter 4: Static Structural Analysis
10:00 ± 10:30 Workshop 4.2 ± 2D Structural Analysis
10:30 ± 11:00 Lecture ± Chapter 5: Vibration Analysis
11:00 ± 11:15 Workshop 5.1 ± Free Vibration Analysis
11:15 ± 11:30 Workshop 5.2 ± Pre-Stressed Vibration Analysis
11:30 ± 12:00 Lecture ± Chapter 6: Thermal Analysis
12:00 ± 1:00 Lunch
1:00 ± 1:30 Workshop 6.1 ± Steady State Thermal Analysis
1:30 ± 2:00 Lecture ± Chapter 7: Linear Buckling Analysis
2:00 ± 2:30 Workshop 7.1 ± Linear Buckling Analysis2:30 ± 3:30 Lecture ± Chapter 8: Results Post-processing
3:30 ± 4:00 Workshop 8.1 ± Results Processing
4:00 ± 4:30 Lecture ± Chapter 9: CAD & Parameters
4:30 ± 5:00 Workshop 9.1 ± Parameter Management
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Introduction
1-5 ANSYS, Inc. Proprietary
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T raining Manual Course Materials
The Training Manual you have is an exact copy of the slides.
Workshop descriptions and instructions are included in theWorkshop Supplement.
Copies of the workshop files are available on the ANSYS Customer Portal (www.ansys.com).
Advanced training courses are available on specific topics.Schedule available on the ANSYS web page http://www.ansys.com/under ³Solutions> Services and Support>Training Services´.
Contents:
A. About ANSYS Inc.
B. ANSYSWorkbench Overview
C. ANSYS Mechanical Overview
D. Starting MechanicalE. TheWorkbench Environment
F. Workbench File Management
G. WorkingWith Units
H. License Preferences
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Introduction
1-6 ANSYS, Inc. Proprietary
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T raining Manual A. About ANSYS, Inc.
ANSYS, Inc.
Developer of ANSYS family of products
Global Headquarters in Canonsburg, PA - USA (south of Pittsburgh)
± Development and sales offices in U.S. and around the world
± Publicly traded on NASDAQ stock exchange under ³ANSS´
± For additional company information as well as descriptions and
schedules for other training courses visit www.ansys.com
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Introduction
1-7 ANSYS, Inc. Proprietary
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T raining Manual « ANSYS Family of Products
ANSYS, Inc. Family of Products include the
following: ANSYS W orkbench ± Complete environment for simulation
and modeling needs.
ANSYS CF D ± State-of-the-art CFD solvers, including CFX and FLUENT.
ANSYS AUTODYN ± Explicit dynamic solver for transientnon-linear simulations involving large deformations and
strains, non-linear material behavior, non-linear buckling,complex contact, fragmentation, and shock wavepropagation.
ANSYS LS-DYNA ± LSTC¶s LS-DYNA explicit dynamic solver technology with the pre-/post-processing power of ANSYSsoftware. This powerful pairing can be used to simulatecrash tests, metal forging, stamping, and catastrophic
failures. ANSYS I C E M CF D ± Powerful meshing tools with general
pre- and post-processing features.
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Introduction
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T raining Manual B. ANSYS Workbench Overview
What is ANSYS W orkbench?
± ANSYS W orkbench provides powerful methods for interacting with the ANSYSfamily of solvers. This environment provides a unique integration with CADsystems, and your design process.
ANSYS W orkbench is comprised of various applications (some examples):
± Mechanical for performing structural and thermal analyses using the ANSYS solver
Meshing is also included within the Mechanical application
± Mechanical AP DL for performing advanced mechanical and multiphysics analysesusing the traditional ANSYS user interface.
± Fluid Flow (CFX) for performing CFD analyses using CFX
± Fluid Flow (FLUENT) for performing CFD analyses using FLUENT
± G eometry ( DesignM od el er) for creating and modifying CAD geometry to preparethe solid model for use in Mechanical.
± Engineering Data for defining material properties
± Meshing Application for generating CFD and Explicit Dynamics meshes
± Design Exploration for optimization analyses
± F init e El ement M od el er (F E M od el er) for translating a NASTRAN and ABAQUSmesh for use in ANSYS
± Blad eG en ( Blad e G eometry) for creating blade geometry
± Explicit Dynamic s for explicit dynamics simulations featuring modeling of nonlinear dynamics
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Introduction
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T raining Manual « ANSYS Workbench Overview
TheWorkbench environment supports two types of applications:
± Native applications (workspaces): Current native applications are ProjectSchematic, Engineering Data and Design Exploration.
Native applications are launched and run entirely in the Workbench window.
± Data Integrated Applications: current applications include Mechanical,
Mechanical APDL, Fluent, CFX, AUTODYN and others.
Native Application
Data Integrated Application
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T raining Manual C. ANSYS Mechanical Overview
Analysis types available in Mechanical :
± Structural (static and transient):
Linear and nonlinear structural analyses.
± Dynamic Capabilities:
modal, harmonic, random vibration, flexible and rigid dynamics.
± Heat Transfer (steady state and transient):
Solve for temperature field and heat flux.T
emperature-dependentconductivity, convection and materials allowed.
± Magnetostatic:
To perform 3-D static magnetic field analysis
± Shape Optimization:
Indicates areas of possible volume reduction using Topological Optimization
technology.
Note, the active ANSYS license dictates what functionality is available to the user. Not all
features listed are covered in this Introductory course.
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T raining Manual « Product Configuration
Mechanical Application
± The environment for simulation automation and ease of use combinedwith the full power of the ANSYS solver technology.
± Formerly called Simulation
Mechanical APDL Application
± The user interface environment that emphasizes access to commands,customization and scripting.
± Formerly called the ANSYS PREP7/POST1 interface
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T raining Manual « Product Configuration
Types of licenses available for Mechanical:
± Various ANSYS licensing configurations are available. The licensechosen will dictate what features and capabilities are available in the
Mechanical application.
± License management allows license sharing when multiple instances of a
particular application are open.
± (Other ANSYS licenses are supported for meshing only)
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T raining Manual « Product Configuration
Add-on licenses for Mechanical:
± Rigid and Flexible Dynamics (one add-on license)
± Fatigue Module
12.0Workbench products are available for Windows and Linux
operating systems.
± Note, Linux will be supported starting at the 12.1 Release
± Check the ANSYS web site or online documentation for the latest
compatibilities.
Network licensing capabilities are used for all ANSYS and ANSYS
Workbench products.
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T raining Manual D. Starting Mechanical
There are two methods of launchingWorkbench:
± From the Windows start menu:
± From the CAD system
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T raining Manual E. The Workbench Environment
For most situations theWorkbench GUI is divided into 2 primary
sections (there are other optional sections we¶ll see in a moment):
The Toolbox The Project Schematic
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T raining Manual The Toolbox
The toolbox contains 4 subgroups:
Analysis systems: predefinedtemplates that can be placed in the
schematic.
Component systems: various
applications that can be accessed
to build, or expand, analysis
systems.
Custom Systems: predefined
analysis systems for coupled
applications (FSI, thermal-stress,
etc.). Users can also create their
own predefined systems.
Design Exploration: Parametric
management and optimization
tools.
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T raining Manual . . . The Toolbox
The systems and components
displayed in the toolbox willdepend on the installed
products.
Using the check boxes in the
³View All / Customize´
window, the items displayedin the toolbox can be toggled
on or off.
The toolbox customization
window is normally left closed
when not in use.
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T raining Manual The Project Schematic
TheWorkbench project schematic is a graphical representation of the
workflow defining a system or group of systems. The workflow in the project schematic is always left to right.
There are currently several applications which are native to
Workbench, meaning they run entirely in theWorkbench window:
± Project Schematic, Engineering Data and Design Exploration
Non-native applications (called data-integrated) run in their ownwindow:
± Mechanical (formerly Simulation), Mechanical APDL (formerly ANSYS),
ANSYS Fluent, ANSYS CFX, Etc . . .
Blocks of cells can be deleted by RMB on the block header cell that is
shaded in blue.
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T raining Manual . . . The Project Schematic
In this example a Static Structural analysis type is selected for the project
schematic. From the toolbox the selection can be dragged and dropped onto the
schematic or simply double clicked.
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T raining Manual . . . The Project Schematic
By dropping applications and/or systems into various locations in the
schematic, an overall analysis project is defined. ³Connectors´ indicate the level of collaboration between systems.
In the example below a structural system is dragged and dropped
onto a thermal system at the Model cell (A4).
Before completing the operation notice there are a number of
optional ³drop targets´ that will provide various types of linkagebetween systems (continued next page).
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T raining Manual . . . The Project Schematic
By completing the operation from the previous page, notice the
linkage here is only at the Model level and above. In this case there would be no thermal/structural coupling.
Notice too each system block is given and alphabetic designation (A,
B, C, etc.).
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T raining Manual . . . The Project Schematic
By dropping the structural system at the ³Solution´ level we obtain a
structural system that is coupled to the thermal solution.
Notice, the candidate
³drop target´indicates data will be
shared from fields A2
to A4, and
transferred from A6.
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T raining Manual . . . The Project Schematic
A schematic can also be constructed by RMB and choosing to
³Transfer Data To New´ or ³Transfer Data From New´. In using this RMB transfer feature all transfer possibilities (upstream
and downstream) are displayed.
These selections will vary depending on which cell in a particular
system you highlight.
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T raining Manual . . . The Project Schematic
Identifying cell states:
Unfulfilled: missing upstream data.
Attention required: may need to correct this or upstream cells.
Refresh required: upstream data has changed. Need to refresh cell (update will
also refresh the cell).
Update required: the data has changed and the output of the cell must be
regenerated.
Up to date.
Input changes pending: cell is locally up to date but may change when the next
update is performed due to upstream changes.
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T raining Manual OptionalWorkbench Windows
The ³View´ menu (and RMB) allows additional information to be
displayed in theWorkbench environment. ± Below, the geometry is highlighted and the properties are displayed.
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T raining Manual F.Workbench File Management
Workbench creates a project file and a series of subdirectories to
manage all associated files. Users should allowWorkbench to manage the content of these
directories. Please do NOTmanually modify the content or structure
of the project directories.
When a project is saved a project file is created (.wbpj), using the
user specified file name (e.g. MyFile.wbpj). A project directory will be created using the project name. In the
above example the directory would be MyFile_files.
A number of subdirectories will be created in the project directory
(explained next).
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T raining Manual . . .Workbench File Management
Directory Structure:
± dpn: this is the design point directory. Thisessentially is the state of all parameters for a
particular analysis. In the case of a single analysis
there will be only one ³dp0´ directory.
± global: contains subdirectories for each application
in the analysis. In the example at right the ³Mech´
directory will contain the database, and other associated files from the Mechanical application.
± SYS: the ³SYS´ directory will contain subdirectories
for each system type in the project (e.g. Mechanical,
Fluent, CFX, etc.). Each system subdirectory
contains solver specific files. For example the
MECH subdirectory would contain the results file,the ds.dat file, solve.out file and so on.
± user_files: contains input files, user macro files etc.
that may be associated with a project.
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T raining Manual . . .Workbench File Management
From theWorkbench ³View´ menu activate the
³Files´ option to display a window containing filedetails and locations.
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T raining Manual . . .Workbench File Management
Archive: quickly generates a single
compressed file containing all pertinent files.
± File is zip format and can be opened using the
³Restore Archive . . . ´ utility inWB2 or any
unzip program.
± Several options are available when archiving
systems as shown here.
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T raining Manual G.WorkingWith Units
The Units menu in Workbench:
± Allows access to predefined unit systems.
± Allows the creation of custom unit systems.
± Controls unit display for Engineering Data,
Parameters and Charts.
± Activate the Units System dialog to control.
Units can be displayed in
the active Project system or
as they were defined in their
source (e.g. CAD system).
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T raining Manual . . .WorkingWith Units
Create custom unit systems by duplicating existing systems then
modifying. Custom unit systems can be exported and imported.
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T raining Manual H. License Preferences
Workbench license control is handled through the user interface
shown below, activated from theWorkbench project page (³Tools >License Preferences . . . ³).
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T raining Manual . . . License Preferences
With the available licenses displayed, the activation and ³use order´
can be specified using the up/down arrows. ± 0 = off, 1 = on
± License order represents the preference order for license use.
The license control allowsWorkbench
users to specify whether a singlelicense is used when multiple
applications are open, or if all open
applications access their own license.
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T raining Manual . . . License Preferences
In the example shown, a user could have 3 Mechanical models open
simultaneously. Using the license control they may choose to open 3licenses or use only 1 that is shared. In the shared scenario, only the active
Mechanical session uses the license (the remaining will be read only).
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