Ansys 12.0 Workbench

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1-1 ANSYS, Inc. Proprietary

© 2009 ANSYS, Inc. All rights reserved.February 23, 2009

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Workbench - Mechanical Introduction 12.0

Chapter 1

Introduction



Introduction



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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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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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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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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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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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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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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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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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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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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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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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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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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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From theWorkbench ³View´ menu activate the

³Files´ option to display a window containing filedetails and locations.



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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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Ansys 12.0 Workbench