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CONTENTS
S.NO
1
2.
DATE
NAME OF THE EXPERIMENTS
INTRODUCTION
STUDY OF ANSYS
3
STRESS ANALYSIS OF BEAM CANTILEVER BEAM WITH POINT LOAD
4
STRESS ANALYSIS OF BEAM-SIMPLY
SUPPORT BEAM WITH DISTRIBUTED
LOADS
5
STRESS ANALYSIS OF BEAM-FIXED
BEAM WITH VARING LOAD
6
STRESS ANALYSIS OF A PLATE WITH
CIRCULAR HOLE
7
STRESS ANALYSIS OF AN
AXIS -SYMMETRIC COMPONENT
8
MODAL ANALYSIS OF A CANTILEVER
BEAM
SIMPLE CONDUCTION EXAMPLE
9
10
THERMAL - MIXED BOUNDARY EXAMPLE
(CONDUCTION/CONVECTION/INSULATED)
PAGE
NO
SIGNATURE
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1. STUDY OF ANSYS
Aim: To study the ANSYS package.
1.0. Introduction
The ANSYS program has many finite element analysis capabilities, ranging from a
simple, linear, static analysis to a complex, non linear, transient dynamic analysis. The analysis
guide manuals in the ANSYS documentation set describe specific procedures for performing
analyses for different engineering disciplines.
ANSYS is a good pre-processing, solution and post-processing tool for finite element
modeling. The ANSYS program is organized into two levels. The initial entry level is the BEGIN
level. From this level we can access the desired processors as shown
Below. The ANSYS graphical user interface (GUI) is split into four main areas. The graphics
area, the utility menu, the main menu and the ANSYS toolbar. Highlighted in the figure below is
the standard layout of the GUI. The different windows that make-up the GUI can be moved
around the screen at the users discretion.
2.0. The Graphics Area
The Graphics area is the window in which the entities are displayed. The window can be
split into smaller windows. Within these windows entities can be animated, rotated, selected,
deleted and so on.
3.0. The Utility Menu
This menu contains controls for opening and saving files, selecting entities, producing plots etc.
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By clicking on any of the 10 options pop-up menus under each option appear.
The ten options are:
File: File opening, clearing a database, saving, importing and exporting files
Select: Selecting entities and components
List: Lists entities and components
Plot: Plots entities and components, multiple plots, array parameters and material data
PlotControls: Hardcopy, component numbering, annotation, animation and plot style
WorkPlane: Working plane creation and manipulation, coordinate system creation and
manipulation
Parameters: Array parameters, scalar parameters and parameter edit
Macros: Macro creation for data manipulation
MenuCtrls: Controls the format of the GUI
Help: Online help and documentation
4.0. The ANSYS Input
This window shows program prompt messages and allows you to type in commands. All
previously typed commands also appear in this window.
5.0. The ANSYS Toolbar
The ANSYS toolbar menu has options for saving and resuming models, power graphics
and web-interfacing.
6.0. The Main Menu
The main menu consists of nine options. Each menu topic brings up a submenu
(Indicated by a > after the topic) or performs an action. The symbol on the right-hand
of the topic indicates the action.
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These are.
Preferences: This sets model preferences, such as thermal, structural or modal analysis
Preprocessor: Enters the preprocessing sub-menu
Solution: Enters the solution sub-menu
General Postproc: Enters the general postprocessor
TimeHist Postproc: Enters the time history postprocessor
Design Opt: Enters the Design Optimization routines
Radiation Matrix: Sets options for radiation thermal analysis
Run-Time Stats: Gives run-time statistics
7.0. ANSYS Menu Structure
From each of the menu bars, further menus appear. These menus can lead to further
pop-up menus, sub-menus, data entry fields and toggles.
All menus are similar to the main menu in colour and in operation. Each menu acts like a
tree to further menus all of which stay displayed until unselected.
7.1. Sub-menus
From the main menu a sub-menu will look like the one shown below.
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The preprocessor menu is extremely important. Most of the work in creating a
model is done from this menu.
From the utility menu a sub-menu will look like the one shown below.
7.2. Pop-up Menu
A pop-up menu will typically look like the one shown below. Note that the menu is
split into several areas.
At the top of the menu is the pick or un-pick option. With this we can either select or
un-select entities using the mouse buttons. The next field tells us the location of the item and
number of items we are picking. Below this area is the data entry area. At
the bottom of the pop-up menu is a set of buttons for applying the required command.
These buttons are common to Ansys pop-up windows and function as follows:
OK This applies the command and closes the window
Apply This applies the command and leaves the window open
Reset Resets the picked or un-picked options
Cancel Cancels the command and closes the window
Help Produces online help
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7.2. Data Entry Field
A data entry field will typically look like the one shown below.
Data such as Young’s Modulus and Poisson’s ratio can be entered using the keyboard in
the required field.
7.3. Toggle
Toggle boxes allow certain options to be set without actually typing anything. They are
typically used when ANSYS want the user to choose between one option and
another. In the toggle box shown above we are choosing to import a CAD file using the default
option and also choosing to combine (merge) coincident key points thus enabling us to create
a areas and volumes.
7.4. Exiting Ansys
We can leave Ansys by clicking on file from the utility menu and then exit at the
bottom of the following menu.
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This action brings up the following toggle menu.
This menu gives the user four options for saving and exiting the model.
8.0. Ansys File Types
As can be expected with a powerful Finite Element tool such as Ansys various
different files are created during the different phases of model creation.
Most files can be created from the file sub-menu from under the utility menu.
Importing Files
Files can be imported from different CAD programs. Using the File option from the
utility menu.
Brings up the sub-menu.
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By clicking on Import a further sub-menu gives us our file options. Typically this
might be an IGES file. Finally a toggle-box will appear offering several options.
9.0. Saving Files
We can save files in Ansys using the File sub-menu as described earlier. The file will
automatically save as file.db (the default jobname). This is known as the database. A back-up
of your database has the file extension dbb. The original database is always copied to a dbb
file when a save command is executed.
To read a database into Ansys use the resume command from File sub-menu.
Exporting Files
IGES files can be exported from the File sub-menu using the export option.
Solution Files
During an analysis Ansys creates various files for storing data. These are.
File.emat element matrix files on previous iteration
File.esav element matrix files on most recent iteration
File.tri triangularised matrix files
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File.err file listing all error messages generated during modelling
File.log log file of all commands issued
File.page scratch files for virtual space
The esav, emat and tri files are automatically deleted after leaving Ansys once a
job has been solved. This feature is unique to Sheffield University. There are
several other files created for different applications, which will not be dealt with in
these notes.
Results Files
For a standard structural analysis the results file has the extension .rst. Hence a
default result file is file.rst
All Ansys files can be copied renamed and saved in the appropriate operating system.
10.0. Entity Selection Methods
Ansys has an extremely powerful select logic. This select logic is available from the File
utility menu under select. It is tremendously useful to understand how this works.
The select sub-menu is shown below.
Entities that you can select are nodes, elements, keypoints lines, areas and volumes.
The default option is nodes.
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The sub-menu is divided into three areas. The top portion allows us to toggle onto which
entities that we wish to select. The second toggle box in this portion allows us
to choose how we would like to select the entities. There are many different ways in which we
can do this. Several examples are shown in the following sub-menus.
Using this sub-menu we can select lines by their global position in the current
coordinate system. A very useful technique is to be able to select things attached to entities we
have already selected. So for instance we can select lines attached to areas, keypoints
attached lines and so on. In the sub-menu shown we are selecting areas attached to the lines
that we have already selected.
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The second portion of the sub-menu offers four options on what we select our entities
from. These four are.
From Full selects entities from all entities that exist
Reselect select entities from those already selected
Also Sele add to the entities already selected
Unselect unselect entities already selected
Also in this portion of the sub-menu are buttons so that we can select everything,
invert our current selection and select none of the entities chosen. The bottom portion of the
panel is our standard Ansys area for executing our desired commands.
11.0. Ansys Model Viewing and Hardcopy
The ANSYS program allows you to pan, zoom and rotate your model. There is a
special sub-menu from the utility menu for doing this under Plot Controls.
Note that this sub-menu has options for various graphics options. Through this menu we
can change the style of our graphics plot, the colours used, the number of windows and so on.
From this window we are also able to produce hardcopy. Clicking on hardcopy will bring up the
following sub-menu. By choosing graphics window only,
color and print file, the graphics window output will be printed on a colour print.
After clicking on pan, zoom rotate the following sub-menu appears.
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This menu is extremely useful for manipulating the model within the graphics window.
The top portion of the menu contains button for selecting standard user views such as
isometric or oblique. Below these standard view are options for zooming in or out of portions
of the model. The next portion of the menu translates or rotates the model. The bottom portion
of the menu allows dynamic manipulation of the model.
12.0. Modeling in Ansys
There are five main phases of the Ansys modelling process.
Geometry creation and editing
Element creation and editing
Load and boundary condition application
Solving of analysis
Results scrutiny and post-processing.
The main menu bar allows access to the functionality needed for these tasks.
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13.0. Introduction to some sub-menus
The pre-processor sub-menu is shown below. From only a small number of submenus
below this, a model can be created, meshed and loaded.
Real Constant real constants are element dependant properties.
Material Properties this sets the material properties such as Young’s
Modulus and Poisson’s ratio
Using the create sub-menu we can produced our geometry from pre-defined shapes
called primitives. These shapes can be circles, rectangles, blocks and several other shapes
outlined in the menu.
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The create rectangle sub-menu offers several options for producing a rectangle and is
shown below.
If we use the by-dimensions option then the following data entry box appears.
14.0. Meshing
The second phase of our modelling process is the element creation. From the
preprocessor menu we can see that one of the sub-sections is labelled Meshing. By clicking on
mesh, the following sub-menu appears.
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This menu allows us to free or map mesh areas or volumes. Free meshing means the
surface will be meshed with quadrilateral and triangular elements. Mapped meshing means
the surface will be only meshed with quadrilateral elements. Only certain geometry’s can be
map meshed.
Within the Meshing area of the pre-processor menu are options for element size
control and other meshing functions. In Ansys all these option are combined in a submenu
called the Mesh tool. This menu is shown below.
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From this menu element size can be set, the mesh can be refined and so on. Loading
and boundary conditions We can apply loads and constraints (and delete them) either from
the preprocessor or the solution processor sub-menus.
If we click on apply the following sub-menu appears.
If we choose Force/moment the following sub-menu appears.
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We can apply forces on nodes or keypoints. Choosing nodes our standard pop-up
menu appears. After picking the nodes on which we want to apply the force, the following data
entry box appears.
By toggling on the Direction of force/mom button we can choose the loading direction
of the force.
We will then be prompted with our standard pop-up menu. The force will be represented
as a red arrow.
Similarly by clicking on apply then Displacement from the solution processor window
then following sub-menu appears.
By clicking on nodes our standard pop-menu will appear
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After picking the nodes we wish to constrain the following data entry box appears.
Highlighting ALL DOF and making the value of the displacement zero fully constrains
the selected nodes.
15.0. Solving of analysis
We enter the solution processor from the main menu as shown below.
We can also apply loads and constraints from the solution processor. To solve an
analyses we click on solve current ls.
16.0. Results scrutiny and post processing
After clicking on the main menu General Postprocessor the following sub-menu
appears.
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If we then click on Nodal solution the following sub-menu appears. Note that we are
able to select our desired output firstly by highlighting the item (stress, strain etc) and
then the component (Sx, Sy etc).
Once we have decided on our output by clicking OK (or apply depending on
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preference) we should get output as shown below.
Result:
Thus the various commands and basic concepts of a ANSYS was studied.
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Ex.No.1
Date:
STRESS ANALYSIS OF BEAM -CANTILEVER BEAM WITH POINT LOAD
AIM:
To analysis the deflection and stresses at each nodal points of a cantilever beam with
point load at free end using ANSYS software.
P=4000N
D=10mm
L=100mm
Preprocessing: Defining the Problem
1. Change jobname:
File -> Change Jobname
Enter “beam”, and click on “OK”.
2. Define element types:
Preprocessor -> Element Type -> Add/Edit/Delete [Apply the BEAM3]
3. Define the real constants for the BEAM3 elements:
Preprocessor > Real Constants > Add
[Calculate and Apply suitable value in Area, Izz and Height]
4. Define Material Properties:
Preprocessor -> Material Properties -> -Constant- Isotropic
[Apply suitable value in young’s modulus=2E06N/sq.m and passion ratio=.27]
5. Create nodes:
Preprocessor -> -Modeling- Create -> Nodes -> In Active CS
Preprocessor -> -Modeling- Create -> Nodes -> Fill between Nds.
Utility Menu -> PlotCtrls -> Numbering. [Minimum 10 nodes]
Preprocessor -> Create -> Elements ->-Auto Numbered-Thru Nodes
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Solution Phase: Assigning Loads and Solving
1. Apply constraints and forces on the model:
To apply constraints:
Solution -> -Loads- Apply -> -Structural- Displacement -> On Nodes
[We will see the diagram and then apply suitable nodes]
Solution -> -Loads- Apply -> -Structural- Force/Moment -> On Nodes
[We will see the diagram and then apply suitable nodes]
8. Solve the problem:
Solution -> -Solve- Current LS
Post processing: Viewing the Results
9. Plot the deformed shape:
General Postproc -> Plot Results -> Deformed Shape
10. List reaction forces:
General Postproc -> List Results -> Reaction Solution
11. List nodal displacements:
(a)
General Postproc -> List Results -> Nodal Solution -> DOF Solution -> ALL DOFs
12. Define element table items for subsequent plotting and listing of various stress results.
13. List element table results. :
(b)
General Postproc -> List Results -> Elem Table Data
1) General Postproc -> Plot Results -> Line Elem Res
2) General Postproc -> Plot Results -> Elem Table
15. Exit ANSYS. Toolbar: Quit ->Save Everything -> OK
RESULT
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Ex.No.2
Date:
STRESS ANALYSIS OF BEAM-SIMPLY SUPPORT BEAM WITH DISTRIBUTED LOADS
AIM:
To analysis the stress and deflection in a Distributed load of 1000 N/m
(1 N/mm) will be applied to a solid steel beam with a rectangular cross section as shown in the
figure below. The cross-section of the beam is 10mm x 10mm while the modulus of elasticity of
the steel is 200GPa.
Preprocessing: Defining the Problem
1. Open preprocessor menu
2. Give example a Title
Utility Menu > File > Change Title .../title, Distributed Loading
3. Create Keypoints
Preprocessor > Modeling > Create > Keypoints > In Active CS
4. Define Lines
Preprocessor > Modeling > Create > Lines > Lines > Straight Line
5. Define Element Types
Preprocessor > Element Type > Add/Edit/Delete... [Apply the BEAM3]
6. Define Real Constants
Preprocessor > Real Constants... > Add..
[Calculate and Apply suitable value in Area, Izz and Height.
7. Define Element Material Properties
Preprocessor > Material Props > Material Models > Structural > Linear > Elastic >
Isotropic
8. Define Mesh Size
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Preprocessor > Meshing > Size Cntrls > ManualSize > Lines > All Lines...
9. Mesh the frame
Preprocessor > Meshing > Mesh > Lines > click 'Pick All'
10. Plot Elements
Utility Menu > Plot > Elements
Solution Phase: Assigning Loads and Solving
1. Define Analysis Type
Solution > Analysis Type > New Analysis > Static
2. Apply Constraints
Solution > Define Loads > Apply > Structural > Displacement > On Keypoints
Apply Loads
Select Solution > Define Loads > Apply > Structural > Pressure > On Beams
3. Solve the System
Solution > Solve > Current LS
Post processing: Viewing the Results
1. Plot Deformed Shape
General Postproc > Plot Results > Deformed Shape
2. Plot Principle stress distribution
As shown previously, we need to use element tables to obtain principle stresses for line
elements.
1. Select General Postproc > Element Table > Define Table
RESULTS
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Ex.No.3
Date:
STRESS ANALYSIS OF BEAM-FIXED BEAM WITH VARING LOAD
AIM:
To analysis the deflection and stresses at each nodal points of a fixed beam with varying load
through out the beam using ANSYS software
s
.
L=100mm
Preprocessing: Defining the Problem
1. Change jobname:
File -> Change Jobname
Enter “beam”, and click on “OK”.
2. Define element types:
Preprocessor -> Element Type -> Add/Edit/Delete [Apply the BEAM3]
3. Define the real constants for the BEAM3 elements:
Preprocessor > Real Constants > Add
[Calculate and Apply suitable value in Area, Izz and Height]
4. Define Material Properties:
Preprocessor -> Material Properties -> -Constant- Isotropic
[Apply suitable value in young’s modulus and passion ratio]
5. Create nodes:
Preprocessor -> -Modeling- Create -> Nodes -> In Active CS
Preprocessor -> -Modeling- Create -> Nodes -> Fill between Nds.
Utility Menu -> PlotCtrls -> Numbering. [Minimum 10 nodes]
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Preprocessor -> Create -> Elements ->-Auto Numbered-Thru Nodes
Solution Phase: Assigning Loads and Solving
2. Apply constraints and forces on the model:
To apply constraints:
Solution -> -Loads- Apply -> -Structural- Displacement -> On Nodes
[We will see the diagram and then apply suitable nodes]
Solution -> -Loads- Apply -> -Structural- Force/Moment -> On Nodes
[We will see the diagram and then apply suitable nodes]
8. Solve the problem:
Solution -> -Solve- Current LS
Post processing: Viewing the Results
9. Plot the deformed shape:
General Postproc -> Plot Results -> Deformed Shape
10. List reaction forces:
General Postproc -> List Results -> Reaction Solution
11. List nodal displacements:
General Postproc -> List Results -> Nodal Solution -> DOF Solution -> ALL DOFs
12. Define element table items for subsequent plotting and listing of various stress results.
13. List element table results. :
(c)
General Postproc -> List Results -> Elem Table Data
1) General Postproc -> Plot Results -> Line Elem Res
2) General Postproc -> Plot Results -> Elem Table
15. Exit ANSYS. Toolbar: Quit ->Save Everything -> OK
RESULT
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Ex.No.4
Date:
STRESS ANALYSIS OF A PLATE WITH CIRCULAR HOLE
AIM
To analysis the given problem to be modeled in this example is a simple bracket shown
in the following fig. This bracket is to be built from a 20mm thick steel plate is shown below
this plate will be fixed at the two small holes on the left and have a load applied to the larger
hole on the right
Preprocessing: Defining the Problem
1. Give the Simplified Version a Title
Utility Menu > File > Change Title
2. Create the main rectangular shape
Preprocessor > Modeling > Create > Areas > Rectangle > By 2 Corners
This will create a rectangle where the bottom left corner has the coordinates 0, 0, 0 and
the top right corner has the coordinates 200, 100, 0.
3. Create the circle
Preprocessor > Modeling > Create > Areas > Circle > Solid Circle
This will create a circle where the center has the coordinates 100,50,0 (the
center of the rectangle) and the radius of the circle is 20 mm.
4. Subtraction
Modeling > Operate > Booleans > Subtract > Areas.
5. Define the Type of Element
Preprocessor Menu > Element Type > Add/Edit/Delete
[Add the element: PLANE82]
6. Define Geometric Properties
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Preprocessor menu > Real Constants > Add/Edit/Delete [Enter a thickness of 20mm]
7. Element Material Properties
Preprocessor > Material Props > Material models > Structural > Linear > Elastic >
Isotropic
We are going to give the properties of Steel. Enter the following when prompted:
EX 200000
PRXY 0.3
8. Mesh Size
Preprocessor > Meshing > Size Cntrls > Manual Size > Areas > All Areas
[Element minimum edge length of 20]
9. Mesh
Meshing > Mesh > Areas > Free
10. Saving Your Job
Utility Menu > File > Save as...
Define Solution Phase: Assigning Loads and Solving
1. Define Analysis Type
Solution > Analysis Type > New Analysis
2. Apply Constraints
Solution > Define Loads > Apply > Structural > Displacement > On Lines
[This location is fixed which means that all DOF's are constrained]
3. Apply Loads
Solution > Define Loads > Apply > Structural > Pressure > On Lines
[There is a load of 20N/mm distributed]
4. Solving the System
Solution > Solve > Current LS
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Post processing: Viewing the Results
1. Deflection
General Postproc > Plot Results > Nodal Solution... Then select DOF solution,
USUM in the window
2. Stresses
General Postproc > Plot Results > Nodal Solution... Then select Stress, von Mises in
the window.
You can list the von Mises stresses to verify the results at certain nodes
General Postproc > List Results. Select Stress, Principals SPRIN
General Postproc > List Results. Select Stress, Principals SPRIN
RESULT
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Ex.No.5
Date:
5. STRESS ANALYSIS OF AN AXIS -SYMMETRIC COMPONENT
AIM:
To analysis axis symmetry in the model will be that of a closed tube made from steel.
Point loads will be applied at the center of the top and bottom plate to make an analytical
verification simple to calculate. A 3/4 cross section view of the tube is shown below. As a
warning, point loads will create discontinuities in the model near the point of application. If you
chose to use these types of loads in your own modeling, be very careful and be sure to
understand the theory of how the FEA package is applying the load and the assumption it is
making. In this case, we will only be concerned about the stress distribution far from the point of
application, so the discontinuities will have a negligible effect.
Preprocessing: Defining the Problem
1. Give example a Title
Utility Menu > File > Change Title...
2. Open preprocessor menu
ANSYS Main Menu > Preprocessor
3. Create Areas
Preprocessor > Modeling > Create > Areas > Rectangle > By Dimensions
Following table:
Rectangle X1 X2 Y1 Y2
4. Add Areas Together
1
0 20 0
5
2
15 20 0 100
3
0 20 95 100
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Preprocessor > Modeling > Operate > Booleans > Add > Areas
5. Define the Type of Element
Preprocessor > Element Type > Add/Edit/Delete...
For this problem we will use the PLANE2 [Axisymmetric]
6. Define Element Material Properties
Preprocessor > Material Props > Material Models > Structural >
Linear > Elastic > Isotropic
We are going to give the properties of Steel. Enter the following when prompted:
EX
200000
PRXY 0.3
7. Define Mesh Size
Preprocessor > Meshing > Size Cntrls > ManualSize > Areas > All Areas
[An element edge length of 2mm]
8. Mesh the frame
Preprocessor > Meshing > Mesh > Areas > Free > click 'Pick All'
Solution Phase: Assigning Loads and Solving
1. Define Analysis Type
Solution > Analysis Type > New Analysis > Static
2. Apply Constraints
Solution > Define Loads > Apply > Structural > Displacement > Symmetry B.C. > On
Lines
Pick the two edges on the left, at x=0.
Utility Menu > Select > Entities
[Select Nodes and By Location from the scroll down menus. Click Y coordinates and
type in 50]
Solution > Define Loads > Apply > Structural > Displacement > On Nodes > Pick All
Constrain the nodes in the y-direction (UY).
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3. Utility Menu > Select > Entities
[In the select entities window, click Select All to reselect all nodes.]
4. Apply Loads
Solution > Define Loads > Apply > Structural > Force/Moment > On Key points
[Pick the top left corner of the area and click OK. Apply a load of 100 in the FY
direction. Pick the bottom left corner of the area and click OK. Apply a load of -100 in
the FY direction. ]
5. Solve the System
Solution > Solve > Current LS
Post processing: Viewing the Results
1. Determine the Stress Through the Thickness of the Tube
o Utility Menu > Select > Entities...
Select Nodes > By Location > Y coordinates and type 45, 55 in the Min, Max box.
General Postproc > List Results > Nodal Solution > Stress > Components
SCOMP
2. Plotting the Elements as Axisymmetric
o
Utility Menu > PlotCtrls > Style > Symmetry Expansion > 2-D Axi-symmetric...
RESULT
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Ex.No.6
Date:
Modal Analysis of a Cantilever Beam
AIM
To perform the modal analysis of a given cantilever beam using subspace method using
ANSYS software
Preprocessing: Defining the Problem
Create elemental model of a simple cantilever beam with the given material properties
Solution: Assigning Loads and Solving
1. Define Analysis
Type Solution > Analysis Type > New Analysis > Modal>
1. Set options for analysis type:
o Select: Solution > Analysis Type > Analysis Options...
o As shown, select the Subspace method and enter 5 in the 'No. of modes to
extract'
o Check the box beside 'Expand mode shapes' and enter 5 in the 'No. of modes to
expand'
o Click 'OK'
2. Apply Constraints
Solution > Define Loads > Apply > Structural > Displacement > On Key pointsFix
Key point 1 (ie all DOFs constrained).
3. Solve the System
Solution > Solve > Current LS
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Post processing: Viewing the Results
1. Verify extracted modes against theoretical predictions
o Select: General Postproc > Results Summary...
The following window will appear
2. View Mode Shapes
o
Select: General Postproc > Read Results > First Set
This selects the results for the first mode shape
o
Select General Postproc > Plot Results > Deformed shape . Select 'Def + undef
edge'
The first mode shape will now appear in the graphics window.
To view the next mode shape, select General Postproc > Read Results > Next Set.
As above choose General Postproc > Plot Results > Deformed shape . Select 'Def
+ undef edge'.
o The first four mode shapes should look the window
2. Animate Mode Shapes
o Select Utility Menu (Menu at the top) > Plot Ctrls > Animate > Mode Shape
o Keep the default setting and click 'OK'
o
RESULT
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SIMPLE CONDUCTION EXAMPLE
AIM:
To analysis in the Simple Conduction Example is constrained as shown in the following
figure. Thermal conductivity (k) of the material is 10 W/m*C and the block is assumed to be
infinitely long.
Preprocessing: Defining the Problem
1. Give example a Title
2. Open preprocessor menu
ANSYS Main Menu > Preprocessor
3. Create geometry
Preprocessor > Modeling > Create > Areas > Rectangle > By 2 Corners > X=0,
Y=0, Width=1, Height=1
4. Define the Type of Element
Preprocessor > Element Type > Add/Edit/Delete... > click 'Add' > Select Thermal
Mass Solid, Quad 4Node 55
5. Element Material Properties
Preprocessor > Material Props > Material Models > Thermal > Conductivity >
Isotropic > KXX = 10 (Thermal conductivity)
6. Mesh Size
Preprocessor > Meshing > Size Cntrls > ManualSize > Areas > All Areas > 0.05
7. Mesh
Preprocessor > Meshing > Mesh > Areas > Free > Pick All
Solution Phase: Assigning Loads and Solving
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1. Define Analysis Type
Solution > Analysis Type > New Analysis > Steady-State
2. Apply Constraints
o Solution > Define Loads > Apply
Thermal > Temperature > On Nodes
o Click the Box option (shown below) and draw a box around the nodes on the top
line.
o Fill the window in as shown to constrain the side to a constant temperature of 500
o Using the same method, constrain the remaining 3 sides to a constant value of
100
3. Solve the System
Solution > Solve > Current LS
Post processing: Viewing the Results
1. Results Using ANSYS
Plot Temperature
General Postproc > Plot Results > Contour Plot > Nodal Solu ... > DOF solution,
Temperature
RESULT
616752- CAD ANALYSIS LAB
THERMAL - MIXED BOUNDARY EXAMPLE
(CONDUCTION/CONVECTION/INSULATED)
AIM:
To analysis in this tutorial was a simple thermal example. Analysis of a simple
conduction as well a mixed conduction/convection/insulation problem will be demonstrated.
The Mixed Convection/Conduction/Insulated Boundary Conditions Example is constrained as
shown in the following figure (Note that the section is assumed to be infinitely long):
Preprocessing: Defining the Problem
1. Give example a Title
2. Open preprocessor menu
ANSYS Main Menu > Preprocessor
3. Create geometry
Preprocessor > Modeling > Create > Areas > Rectangle > By 2 Corners > X=0,
Y=0, Width=1, Height=1
4. Define the Type of Element
Preprocessor > Element Type > Add/Edit/Delete... > click 'Add' > Select Thermal
Mass Solid, Quad 4Node 55
5. Element Material Properties
Preprocessor > Material Props > Material Models > Thermal > Conductivity >
Isotropic > KXX = 10
6. Mesh Size
Preprocessor > Meshing > Size Cntrls > ManualSize > Areas > All Areas > 0.05
7. Mesh
616752- CAD ANALYSIS LAB
Preprocessor > Meshing > Mesh > Areas > Free > Pick All
Solution Phase: Assigning Loads and Solving
1. Define Analysis Type
Solution > Analysis Type > New Analysis > Steady-State
2. Apply Conduction Constraints
o
Solution > Define Loads > Apply > Thermal > Temperature > On Lines
3. Apply Convection Boundary Conditions
o
Solution > Define Loads > Apply > Thermal > Convection > On Lines
4. Apply Insulated Boundary Conditions
o
Solution > Define Loads > Apply > Thermal > Convection > On Lines
5. Solve the System
Solution > Solve > Current LS
Post processing: Viewing the Results
1. Results Using ANSYS
Plot Temperature
General Postproc > Plot Results > Contour Plot > Nodal Solu ... > DOF solution,
Temperature
RESULT