ansys 10.0 workbench tutorial - exercise 2, dimensions and parameters

ANSYS ED Workbench TutorialANSYS ED ANSYS ED Workbench TutorialWorkbench Tutorial

DimensionsAnd

Parameters

DimensionsDimensionsAndAnd

ParametersParameters

WelcomeWelcome

• Now that you have completed Exercise

1, you should be familiar with the basic

methods, tools and concepts that comprise the ANSYS Workbench. Let’s

begin Exercise 2.

Using ParametricsUsing Parametrics

• The methods taught in this tutorial apply equally well to both attached parametric CAD and DesignModeler files.

• For the purposes of this tutorial we will be

using the DesignModeler file produced in Exercise 1 of this tutorial.

• When using attached CAD systems dimensions and parameters would be defined in your CAD models.

Exercise 2 - OutlineExercise 2 - Outline

• Dimensioning and Parameters

1. Dimensioning your model

2. Dimension naming and display

3. Exporting parameters

4. Using parametric equations

5. Defining the Environment and Solution

6. Examining Results

7. Making Parametric Changes

Getting StartedGetting Started

If you are starting Exercise 2 without previously

completing Exercise 1 copy the following files to a

local working directory

…\ANSYS ED Tutorial\Samples\Exercise1.wbdb

…\ANSYS ED Tutorial\Samples\Exercise1.agdb

…\ANSYS ED Tutorial\Samples\Exercise1.dsdb

…\ANSYS ED Tutorial\Samples\Exercise1.eddb

Then Click Here

Opening Exercise1 filesOpening Exercise1 files

If you previously saved Exercise1

in ANSYS ED you can open your

previous project from the

ANSYS Workbench Start Page

Make sure that the Open: pull-

down is set to “Workbench

Projects” then left mouse click

on Exercise1

If Exercise1 is not in your list you will need to Browse for

the Project in the directory you copied the sample files to

The Project PageThe Project Page

Note: You should now be on the Project Page with

the contents as shown above

1. Left click on the Exercise1

DesignModeler Geometry

2. Left click on Open copy

Step 1A – Opening your sketchStep 1A – Opening your sketch

1. Expand the

XYPlane in the

Tree Outline and

select Sketch 1

3. Select the Sketch Mode

2. Turn off the 3D

model display

Dealing with Over ConstraintsDealing with Over Constraints

• What is an Over Constraint?

– When you dimension your model you are defining rules as to how your model will change when the dimension or its associated parameter is modified.

– An “Over Constraint” where more than one rule or dimension are trying to change or control the same geometry.

• As you proceed with dimensioning, you may on equation over constrain your model.

• You will need to delete one of the two offending constraints (dimensions or rules) when this occurs.

Deleting Unwanted DimensionsDeleting Unwanted Dimensions

1. Select “Modify”

from the Sketching

Toolbox

2. Select the Dimension

to be deleted

3. Hit the “Delete” key

on the keyboard

If you create

a dimension

that you do

not want in

this exercise

Step 1B - DimensioningStep 1B - Dimensioning

1. Select “Dimensions”

from the Sketching

Toolbox

2. Select “General”

3. Select each line to be dimensioned and

holding the left mouse button drag the

dimension to a desired location

Step 1C - DimensioningStep 1C - Dimensioning

1. Select “Horizontal”

2. Select the vertical axis

and an edge

3. Drag and

drop the

dimension

Step 1D - DimensioningStep 1D - Dimensioning

1. Select “Vertical”

2. Select the horizontal

axis and an edge

3. Drag and

drop the

dimension

Step 2A – Displaying DimensionsStep 2A – Displaying Dimensions

In the “Dimensions” tools

select both Name and Value

It is often desirable to be able to view both

dimension names and values

Step 2B – Locating DimensionsStep 2B – Locating Dimensions

1. In the “Dimensions”

tools select Move

2. Using the left mouse button

drag and drop dimensions to

new locations for clarity

Step 2C – Editing DimensionsStep 2C – Editing Dimensions

1. Select “Edit” from the

Dimensions tools

2. Drag over and select the

dimension to be modified

Step 2D – Examine DetailsStep 2D – Examine Details

Note the Details view

now contains your

dimension detail

We are going to select and modify the

name and values of our each of our

dimension by selecting and changing the

details to those shown on the next page

Step 2E – Edit 4 DimensionsStep 2E – Edit 4 Dimensions

Note the edited values

• You will need to repeat

the edit operation for

each dimension

Select left mouse

click and enter

each dimensions

name and value

Note: Leave

the values of

the X and Y

offsets

unchanged

Step 3A – Exporting ParametersStep 3A – Exporting Parameters

1. Select and return to draw mode

2. Scroll through your sketch details

and locate your dimensions

Note: The check boxes that control the

export of parameters

Step 3B – Naming ParametersStep 3B – Naming Parameters

Note you will need to

define and export each

of your dimensions as

parameters

1. Select the

check box

dimension

2. A dialog will appear

3. For the purposes of

this exercise

remove the

“XYPlane.” prefix

from the name and

click “OK”

Note when you click

“OK” a “D” shows up

in the check box

indicating a parameter

Step 3C – Verify ExportStep 3C – Verify Export

Verify that all of your parameters have been

exported (Note the “D” annotations)

Select and return to Modeling Mode

Step 3D – Export 3D ParametersStep 3D – Export 3D Parameters

1. Select the Extrusion from the Tree Outline

2. Scroll and find the

Extrusion Depth in

the Details View and

select the check box

3. Change the parameter name to

“Thickness” and click “OK”

Step 4A – Using ParametersStep 4A – Using Parameters

1. Select Parameters from the toolbar

Note the appearance of the Parameter Manager

2. Select “Parameter/Dimension

Assignments”

Step 4B – Using EquationsStep 4B – Using Equations

1. Change the equations above to the equation below

setting the offsets of our plate from the XY Origin

2. Select “Check” to verify

your equation syntax

Step 4C – Validate EquationsStep 4C – Validate Equations

1. Validate your inputs and syntax 2. Close the

Parameter

Manager

Step 4D – Update the ModelStep 4D – Update the Model

3. Note that your sketch has

been updated based on your

equations

1. Note that the

extrusion is out of

date (lightning

bolts)

2. Select “Generate” to update your model

4. Select the project folder tab to return to the Project

Step 4E – Naming ModelsStep 4E – Naming Models

1. Select the DesignModeler name

using the left mouse button

2. Select the name again with the left

mouse button

3. Rename the model to “Exercise2”

Step 4F – Geometry OptionsStep 4F – Geometry Options

1. Make sure the

DesignModeler

Exercise2 is selected

Note that attributes, Named selections and

Material properties are not selected

Note that prefix filters have been defined to

limit parameter input and exchange

2. If the “Default Geometry Options”

are not visible select the title bar to

expand the visible options

Step 4G – Setting FiltersStep 4G – Setting Filters

1. Select “Attributes”, “Named

selections” and “Material

Properties”

2. Delete (blank out) filters

3. Select “Tools>Options”

Step 4H – Filtering OptionsStep 4H – Filtering Options

Note: Defaults for these

options can be set using

the “Options” menu in

the ANSYS Workbench

To get to the options select “Tools>Options” in the

Menubar

Step 5A – Start a SimulationStep 5A – Start a Simulation

1. Verify that the geometry for

Exercise 2 is selected

2. Select (start) a “New Simulation”

Step 5B – Your New SimulationStep 5B – Your New Simulation

Note that you new Model has been

added to your existing Project

Simulation

Step 5C – Renaming ModelsStep 5C – Renaming Models

Using a right mouse click select your

Models. Than select rename and

rename your models as shown

Step 5D – Copying SimulationsStep 5D – Copying Simulations

Copy your Environment and

Solution options to your new

Simulation by using the shift key to

select multiple items. Then use a

right mouse click to copy the items

and paste them into your new

Environment and Solution

Step 5C – Setting the MeshStep 5C – Setting the Mesh

1. Select the Mesh

2. Set the Mesh Relevance to -100

Step 5D – Reselecting TargetsStep 5D – Reselecting Targets

Note: Question marks and lightning bolts

indicate that Simulations have not been

run or are out of date.

The use of Named Selections to enhance

these capabilities are covered in the next

tutorial

Step 5E – Reselect GeometryStep 5E – Reselect Geometry

Select “Fixed Support’ In the Outline

Note that because our model is new

no geometry selections exist

Step 5F – Redefining ConstraintsStep 5F – Redefining Constraints

2. Using techniques used in

Exercise 1 select the

faces to be supported

1. Select Geometry

3. Select Apply

Step 5F – (continued)Step 5F – (continued)

1. Verify that you have selected all four faces

2. Select “Pressure” and then geometry

Step 5G – Refining LoadsStep 5G – Refining Loads

Note: Again we need to reselect geometry in our new model

Step 5G – (continued)Step 5G – (continued)

1. Again select “Geometry”

2. Select the face on which the

geometry is to be applied

3. Select apply and validate inputs

Step 6A – Generating ResultsStep 6A – Generating Results

Note that only lightning bolts remain in the outline

Select Solve

Step 6B – Reviewing ResultsStep 6B – Reviewing Results

Feel free at this point to review your results (If

needed review Exercise 1 in the ANSYS ED

General Tutorial)

Step 7A – Using ParametersStep 7A – Using Parameters

1. Return to the

Modeler by

selecting the

folder tab 2. Open Parameters

3. Change the length of the plate to 120

4. Close the Parameter Manager

Step 7E – Updating GeometryStep 7E – Updating Geometry

1. Select your new

Exercise 2

2. Select “Update Use Geometry Parameters”

Step 7F – Updating SolutionsStep 7F – Updating Solutions

Note your new

Model and the

Width to Length

Note the Solution

(lightening bolts)

Select Solve

Step 7G – Reviewing ResultsStep 7G – Reviewing Results

1. Review your results

as you wish based on

methods covered in

Exercise 1

2. Select the folder tab to

return to the

DesignModeler

Step 7H – Making ChangesStep 7H – Making Changes

1. Open the

Parameter

Manager

2. Change the

Width to 180

3. Select “Close”

4. Select “Generate” to update the model

Step 7J – Updating SolutionsStep 7J – Updating Solutions

Select the Simulation folder tab

to return to your Simulation

Step 7K – Updating GeometryStep 7K – Updating Geometry

1. Select your

Exercise 2

Geometry

2. Select Update from Geometry

Step 7L – Updating SolutionsStep 7L – Updating Solutions

Note that:

Your model has been updated

Your loads and constraints are in place

A new “Solve” is required

Select “Solve”

Step 7M – Reviewing ResultsStep 7M – Reviewing Results

1. Review your results

2. Select the “Project”

folder tab to return to

the Project Page

Step 7N – Saving ResultsStep 7N – Saving Results

1. Select “Save All”

2. Select “Exit” to close the ANSYS Workbench

When saving filesWhen saving files

• Note that every ANSYS Workbench Project contains only one “.dsdb” file but multiple “.agdb” files if models are copied.

– This is because

• Each DesignModeler file holds in parameters as unique

– While

• Models are combined in the Simulation to allow the cloning, copying or sharing of loads, supports, etc…

Working with CAD systemsWorking with CAD systems

• Remember:

– Parameters and parameter updates work equally well when using the

Workbench with active parametric CAD systems

CongratulationsCongratulations

• You have completed Exercise 2 of the ANSYS ED Workbench Tutorial

• Click here if you wish to continue with the next exercise

ansys 10.0 workbench tutorial - exercise 2, dimensions and parameters

ansys workbench

saved exercise1

workbench projects

previous project

designmodeler files

parametric cad

open copy

dimension naming

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