Saux4008-Modeling and Analysis of Engine Components Lab (1)
Transcript of Saux4008-Modeling and Analysis of Engine Components Lab (1)
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
1/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Exp. No .1
Introduction to ANSYS
Aim: To study the ANSYS package.
ANSYS, Inc. is an engineering simulation software provider founded by softwareengineer John Swanson. It develops general-purpose finite element analysis and computational
fluid dynamics software. While ANSYS has developed a range of computer-aided engineering
(CAE) products, it is perhaps best known for its ANSYS Mechanical and ANSYS Metaphysicsproducts. ANSYS Mechanical and ANSYS Metaphysics software are non-exportable analysis
tools incorporating pre-processing (geometry creation, meshing), solver and post-processing
modules in a graphical user interface. These are general-purpose finite element modeling
packages for numerically solving mechanical problems, including static/dynamic structuralanalysis (both linear and non-linear), heat transfer and fluid problems, as well as acoustic and
electro-magnetic problems. ANSYS Mechanical technology incorporates both structural and
material non-linearitys. ANSYS Metaphysics software includes solvers for thermal, structural,CFD, electromagnetics, and acoustics and can sometimes couple these separate physics together
in order to address multidisciplinary applications. ANSYS software can also be used in civil
engineering, electrical engineering, physics and chemistry. ANSYS, Inc. acquired the CFX
computational fluid dynamics code in 2003 and Fluent, Inc. in 2006. The CFD packages fromANSYS are used for engineering simulations. In 2008, ANSYS acquired Ansoft Corporation, a
leading developer of high-performance electronic design automation (EDA) software and added
a suite of products designed to simulate high-performance electronics designs found in mobilecommunication and Internet devices, broadband networking components and systems, integrated
circuits, printed circuit boards, and electromechanical systems. The acquisition allowed ANSYS
to address the continuing convergence of the mechanical and electrical worlds across a whole
range of industry sectors.Automotive
ToyotaPrius HEVaerodynamicsoptimization for fuel usage reduction
Red Bull Racingaerodynamics optimization for faster speed
Aerospace
Parker Aerospacehigh-performance computingfor faster simulation results
Astrobotic Technology andCarnegie Mellon Universityspacecraft structural analysis for
strength and stiffness[10]
Terrafugiaroadable aircraft for proof-of-concept testing[
Energy
Columbia Power wave energy device shape optimization to reduce maintenance costs and
breakdowns
Indar Electric permanent magnetwind turbine generatoroptimization for reliable operation
Electronics
University of Arizonaantenna performance optimization
Fujitsu Semiconductor Limited integrated circuit (IC) design optimization
Consumer products
Dysonbladeless fan airflow performance optimization
http://en.wikipedia.org/wiki/Toyotahttp://en.wikipedia.org/wiki/Toyotahttp://en.wikipedia.org/wiki/Aerodynamicshttp://en.wikipedia.org/wiki/Aerodynamicshttp://en.wikipedia.org/wiki/Aerodynamicshttp://en.wikipedia.org/wiki/Red_Bull_Racinghttp://en.wikipedia.org/wiki/Red_Bull_Racinghttp://en.wikipedia.org/wiki/High-performance_computinghttp://en.wikipedia.org/wiki/High-performance_computinghttp://en.wikipedia.org/wiki/High-performance_computinghttp://en.wikipedia.org/wiki/Carnegie_Mellon_Universityhttp://en.wikipedia.org/wiki/Carnegie_Mellon_Universityhttp://en.wikipedia.org/wiki/Carnegie_Mellon_Universityhttp://en.wikipedia.org/wiki/Ansys#cite_note-10http://en.wikipedia.org/wiki/Ansys#cite_note-10http://en.wikipedia.org/wiki/Ansys#cite_note-10http://en.wikipedia.org/wiki/Terrafugiahttp://en.wikipedia.org/wiki/Terrafugiahttp://en.wikipedia.org/wiki/Wind_turbine_designhttp://en.wikipedia.org/wiki/Wind_turbine_designhttp://en.wikipedia.org/wiki/Wind_turbine_designhttp://en.wikipedia.org/wiki/University_of_Arizonahttp://en.wikipedia.org/wiki/University_of_Arizonahttp://en.wikipedia.org/wiki/Dyson_(company)http://en.wikipedia.org/wiki/Dyson_(company)http://en.wikipedia.org/wiki/Dyson_(company)http://en.wikipedia.org/wiki/University_of_Arizonahttp://en.wikipedia.org/wiki/Wind_turbine_designhttp://en.wikipedia.org/wiki/Terrafugiahttp://en.wikipedia.org/wiki/Ansys#cite_note-10http://en.wikipedia.org/wiki/Carnegie_Mellon_Universityhttp://en.wikipedia.org/wiki/High-performance_computinghttp://en.wikipedia.org/wiki/Red_Bull_Racinghttp://en.wikipedia.org/wiki/Aerodynamicshttp://en.wikipedia.org/wiki/Toyota -
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
2/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
SpeedoFASTSKIN3 Racing System drag reduction
Products
Simulation Technology:
Structural Mechanics, Multiphysics, Fluid Dynamics, Explicit Dynamics, Electromagnetics,
Hydrodynamics (AQWA).
Workflow Technology:ANSYS Workbench Platform, High-Performance Computing, Geometry Interfaces, Simulation
Process & Data Management.
FUNDAMENTALS OF ANSYS
Useful DefinitionsBefore delving into the details of the procedures related to the ANSYS program, we
define the following terms:
Jobname:
A specific name to be used for the files created during an ANSYS session. This name canbe assigned either before or after starting the ANSYS program.
Working Directory:A specific folder (directory) for ANSYS to store all of the files created during a session.
It is possible to specify the Working Directorybefore or after starting ANSYS.Interactive Mode:
This is the most common mode of interaction between the user and the ANSYS program.
It involves activation of a platform called Graphical User Interface {GUI), which is composed ofmenus, dialog boxes, push-buttons, and different windows. Interactive Mode is the
recommended mode for beginner ANSYS users as it provides an excellent platform for learning.
It is also highly effective for postprocessing.
Batch Mode:This is a method to use the ANSYS program without activating the GUI It involves an
Input File written in ANSYS Parametric Design Language {APDL), which allows the use ofparameters and common programming features such as DO loops and IF statements. Thesecapabilities make the Batch Mode a very powerful analysis tool. Another distinct advantage of
theBatch Mode is realized when there is an error/mistake in the model generation. This type of
problem can be fixed by modifying a small portion of the Input File and reading it again, savingthe user a great deal of time.
Combined Mode:
This is a combination of theInteractive andBatch Modes in which the user activates the
GUI and reads the Input File. Typically, this method allows the user to generate the model and
obtain the solution using the Input File while reviewing the results using the Postprocessor
within the GUL This method combines the salient advantages of the Interactive and Batch
Modes,
BEFORE AN ANSYS SESSION
The construction of solutions to engineering problems using FEA requires either the
development of a computer program based on the FEA formulation or the use of a commerciallyavailable general-purpose FEA program such as ANSYS. The ANSYS program is a powerful,
multi-purpose analysis tool that can be used in a wide variety of engineering disciplines. Before
http://en.wikipedia.org/wiki/Speedohttp://en.wikipedia.org/wiki/Speedohttp://en.wikipedia.org/wiki/Speedo -
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
3/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
using ANSYS to generate an FEA model of a physical system, the following questions should be
answered based on engineering judgment and observations:
What are the objectives of this analysis? Should the entire physical system be modeled, or just a portion?
How much detail should be included in the model?
How refined should the finite element mesh be? In answering such questions, the computational expense should be balanced against the accuracyof the results. Therefore, the ANSYS finite element program can be employed in a correct and
efficient way after considering the following:
Type of problem. Time dependence.
Nonlinearity.
Modeling idealizations/simplifications. Each of these topics is discussed in this section.
ANALYSIS DISCIPLINEThe ANSYS program is capable of simulating problems in a wide range of engineering
disciplines. Structural Analysis: Deformation, stress, and strain fields, as well as reaction forcesin a solid body.
Thermal Analysis:
Steady-state or time-dependent temperature field and heat flux in a solid body.
Structural AnalysisThis analysis type addresses several different structural problems, for example:
Static Analysis:
The applied loads and support conditions of the solid body do not change with time.Nonlinear material and geometrical properties such as plasticity, contact, creep, etc., are
available.
Modal Analysis:
This option concerns natural frequencies and modal shapes of a structure.Harmonic Analysis:
The response of a structure subjected to loads only exhibiting sinusoidal behavior in time.
Transient Dynamic:The response of a structure subjected to loads with arbitrary behavior in time.
Eigenvalue Buckling:
This option concerns the buckling loads and buckling modes of a structure.Thermal Analysis
This analysis type addresses several different thermal problems, for example:
Primary Heat Transfer:
Steady-state or transient conduction, convection and radiation.Phase Change: Melting or freezing.
Thermo mechanical Analysis:
Thermal analysis results are employed to compute displacement, stress, and strain fields
due to differential thermal expansion.Time Dependence
The analysis with ANSYS should be time-dependent if:
The solid body is subjected to time varying loads. The solid body has an initially specified temperature distribution.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
4/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
The body changes phase.
NONLINEARITYMost real-world physical phenomena exhibit nonlinear behavior. There are many
situations in which assuming a linear behavior for the physical system might provide satisfactory
results. On the other hand, there are circumstances or phenomena that might require a nonlinearsolution. A nonlinear structural behavior may arise because of geometric and materialnonlinearities, as well as a change in the boundary conditions and structural integrity. These
nonlinearities are discussed briefly in the following subsections.
Geometric NonlinearityThere are two main types of geometric nonlinearity:
Large deflection and rotation:
If the structure undergoes large displacements compared to its smallest dimension and
rotations to such an extent that its original dimensions and position, as well as the loadingdirection, change significantly, the large deflection and rotation analysis becomes necessary. For
example, a fishing rod with a low lateral stiffness under a lateral load experiences large
deflections and rotations.Stress stiffening:
When the stress in one direction affects the stiffness in another direction, stress stiffening
occurs. Typically, a structure that has little or no stiffness in compression while having
considerable stiffness in tension exhibits this behavior. Cables, membranes, or spinningstructures exhibit stress stiffening.
Material Nonlinearity
A linear material response is a good approximation if the material exhibits a nearly linearstress-strain curve up to a proportional limit and the loading is in a manner that does not create
stresses higher than the yield stress anywhere in the body.
Nonlinear material behavior in ANSYS is characterized as:
Plasticity:Permanent, time-independent deformation.
Creep:
Permanent, time-dependent deformation.Nonlinear Elastic:
Nonlinear stress-strain curve; upon unloading, the structure returns back to its original
stateno permanent deformations.Viscoelasticity:
Time-dependent deformation under constant load. Full recovery upon unloading.
Hyper-elasticity: Rubber-like materials.
Changing-status NonlinearityMany common structural features exhibit nonlinear behavior that is status dependent.
When the status of the physical system changes, its stiffness shifts abruptly. The ANSYS
program offers solutions to such phenomena through the use of nonlinear contact elements and
birth and death options. This type of behavior is common in modeling manufacturing processessuch as that of a shrink-fit.
Practical Modeling Considerations
In order to reduce computational time, minor details that do not influence the resultsshould not be included in the FE model. Minor details can also be ignored in order to render the
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
5/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
geometry symmetric, which leads to a reduced FE model. However, in certain structures,
"small'* details such as fillets or holes may be the areas of maximum stress, which might prove
to be extremely important in the analysis and design. Engineering judgment is essential tobalance the possible gain in computational cost against the loss of accuracy.
ORGANIZATION OF ANSYS SOFTWAREThere are two primary levels in the ANSYS program,
Begin Level:
Gateway into and out of ANSYS and platform to utilize some global controls such aschanging ihQ jobname, etc.
Processor Level:
This level contains the processors (preprocessor, solution, postprocessor, etc.) that are
used to conduct finite element analyses. The user is in the Begin Level upon entering the ANSYSprogram. One can proceed to theProcessor Levelby clicking the mouse on one of the processor
selections in the ANSYSMain Menu,
ANSYS ANALYSIS APPROACHThere are three main steps in a typical ANSYS analysis:
Model generation:
Simplifications, idealizations.Define materials/material properties.
Generate finite element model (mesh).
Solution:Boundary conditions
Obtain the solution.
Review results:
Plot/list results.Check for validity.
Each of these steps corresponds to a specific processor or processors within theProcessor Level
in ANSYS. In particular, model generation is done in the Preprocessor and application of loadsand the solution is performed in the Solution Processor, Finally, the results are viewed in the
General
Postprocessor and Time History Postprocessor for steady-state (static) and transient (time-dependent) problems, respectively. There are several other processors within the ANSYS
program. These mostly concern optimization and probabilistic-type problems. The most
commonly used processors are described in the following subsections.
ANSYS PreprocessorModel generation is conducted in this processor, which involves material definition,
creation of a solid model, and, finally, meshing. Important tasks within this processor are:
Specify element type. Define real constants (if required by the element type).
Define material properties,
Create the model geometry. Generate the mesh.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
6/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Although the boundary conditions can also be specified in this processor, it is usually done in the
Solution Processor,
ANSYS Solution ProcessorThis processor is used for obtaining the solution for the finite element model that is generated
within thePreprocessor, Important tasks within this processor are:
Define analysis type and analysis options, Specify boundary conditions. Obtain solution.
ANSYS General PostprocessorIn this processor, the results at a specific time (if the analysis type is transient) over the
entire or a portion of the model are reviewed. This includes the plotting of contours, vector
displays, deformed shapes, and listings of the results in tabular format.
ANSYS Time History PostprocessorThis processor is used to review results at specific points in time (if the analysis type is
transient). Similar to the General Postprocessor, it provides graphical variations and tabularlistings of results data as functions of time.
ANSYS FILE STRUCTURE
Several files are created during a typical ANSYS analysis. Some of these files are inASCII format while the others are binary. Brief descriptions of common file types are given
below.
Database Fil e
During a typical ANSYS analysis, input and output data reside in memory until they are
saved in aDatabase File, which is saved in the Working Directory. The syntax for the name of
theDatabase File isjobname,db. This binary file includes the element type, material properties,
geometry (solid model), mesh (nodal coordinates and element connectivity), and the results if asolution is obtained. Once the Database File is saved, the user can resume from this file at any
time. There are three distinct ways to save and resume theDatabase File:
Use the Utility Menu.
Click on SAVE JOB orRESUMJDBbutton on theANSYS Toolbar.
Issue the command SAVE or RESUME in theInput Field.
Log F ile
TheLog File is an ASCII file, which is created (or resumed) immediately upon entering
ANSYS. Every action taken by the user is stored sequentially in this file in command format
(ANSYS Parametric Design Language (APDL)). The syntax for the name of the Log File, which
is also saved in the Working Directory, isjobname.log. If jobname.log already exists in theWorking Directory, ANSYS appends the newly executed actions instead of overwriting the file.
The Log File can be utilized to: Understand how an analysis was performed by another user.
Learn the command equivalents of the actions taken within ANSYS.
Error File
Similar to the Log File, the Error File is an ASCII file, which is created (or resumed)
immediately upon entering ANSYS. This file captures all warning and error messages issued byANSYS during a session. It is saved in the Working Directory with the following syntax for the
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
7/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
name:jobname.err. Ifjobname.err already exists in the Working Directory, ANSYS appends the
newly issued warning and error messages instead of overwriting the file. This file is particularly
important when ANSYS issues several warning and error messages too quickly during aninteractive session. The user can then consult the Error File to discover the exact cause(s) of
each of the warnings or errors.
Resul ts F il es
The results of an ANSYS analysis are stored in a separate Results File. This file is a
binary file and, depending upon theAnalysis Type, the file's extension takes a different form. The
following syntax applies to theResults File name for the selectedAnalysis Type:Structural analysis:jobname.rst
Thermal analysis:jobname.rth
Fluids analysis:jobname,rfl
DESCRIPTION OF ANSYS MENUS AND WINDOWSWhen using the ANSYS program in Interactive Mode, the Graphical User Interface
(GUT) is activated. The GUI has six distinct components:Utility Menu: Contains functions that are available throughout the ANSYS session, such as file
controls, selecting, graphic controls, and parameters. The ANSYS Help System is also accessible
through this menu.
Main Menu: Contains the primary ANSYS functions organized by processors (Preprocessor,Solution, General Postprocessor, etc.).
Toolbar: Contains push-buttons for executing commonly used ANSYS commands and functions.
Customized buttons can be created.Input Field: Displays a text field for typing commands. All previously typed commands are
stored in a pull-down menu for easy reference and access.
Graphics Window: Displays the graphical representation of the models/ meshes created within
ANSYS. Also, the related results are reviewed in this window.Output Window: Receives text output from the program. This window is usually positioned
behind other windows and can be raised to the front when necessary
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
8/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
USING THE ANSYS HELP SYSTEM
Information on ANSYS procedures, commands, and concepts can be found in the
ANSYS Help System. The importance of knowing how to use the Help System cannot beoveremphasized. It can be accessed within the Graphical User Interface (GUI) in three ways:
By choosing theHelp menu item under Utility Menu.
By pressing theHelpbutton within dialog boxes. By entering the HELP command directly in theInput Field.
TheHelp System is also available as a stand-alone program outside of ANSYS. The user
can bring up the desired help topic by choosing it from the system's table of contents or index,
through a word search, or by choosing a hypertext link. The Help System is built on the HTMLplatform in the form of web pages. As indicated in Fig. there are three tabs on the left of theHelp
Window: Contents, Index, and Search. The help pages are displayed on the right side of the Help
Window.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
9/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
VERIFICATION MANUALAlthough all of the ANSYS Manuals included under the Contents Tab are important
sources of information, one particular Manual deserves special emphasis, the Verification
Manual. The purpose of this Manual is to demonstrate the capabilities of ANSYS in solving
fundamental engineering problems with analytical solutions. Another important feature of the
Verification Manual is its suitability as an effective learning tool. There is a corresponding InputFile for each of the verification problems included in this manual (in excess of 200). Asmentioned earlier, the input files contain ANSYS commands to be executed sequentially when
read from within ANSYS. Each of these commands corresponds to a specific action in the
Interactive Mode. Once the verification problem that is the closest to the problem at hand isidentified, the user can then study the corresponding Input File and learn the essential steps in
solving the problem using ANSYS. The Verification Manual also serves as an excellent tool for
learning to use ANSYS inBatch Mode
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
10/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Exp.No:2
Thermal Analysis of Piston
Aim:To modeling and carry out thermal analysis of the given piston using the
analysis software ANSYS.
Procedure:
(I) Preference:
Preferences for GUI filtering > Thermal > OK
(II) Preprocessor:
(1) Element:
Element Types > Add/Edit/Delete > Add > Solid > Tet 10node 87
(SOLID 87) > OK
(2) Materials Props:
Material Models Available window:
Thermal > Conductivity > Isotropic > KXX = 16
Specific Heat = 500
Density = 8000
> OK
Materials Props > Temperature Units > Celsius click > OK
(3) Modeling:
Modeling > Create > keypoints>in active CS (keypoint name(x,y))
1(0.06,0)apply
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
11/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
2(0.07,0) apply
3(0.07,0.025)apply
4(0.065,0.025)apply
5(0.065,0.030)apply
6(0.070,0.030)apply
7(0.07,0.105)apply
8(0.065,0.105)apply
9(0.065,0.11)apply
10(0.07,0.11)apply
11(0.07,0.115)apply
12(0.065,0.115)apply
13(0,065,0.12)apply
14(0.07,0.12)apply
15(0.07,0.125)apply
16(0.065,0.125)apply
17(0.065,0.13)apply
18(0.07,0.13)
19(0.07,0.14)apply
20(0,0.14) apply
21(0,0.13) apply
22(0.055,0.13) apply
23(0.055,0.105) apply
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
12/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
24(0.06,0.1) ok
Modeling > Create >Line>straight line,[Joint all keypoint in sequence(1,2,3etc)]
Modeling > Create >Area>arbitrary>by lines [Joint all line in sequence (1,2,3..etc)
Modeling>operate>Extrude>Area>About Axix,
[select area> apply>select keypoint 20&21 ok]
Modeling > Create >Volume>Solid cylinder
[enter 0,0.065,0.007,+0.08 apply, 0,0.065,0.007,-0.08 OK]
Modeling>operate>Booleans>subtract>Volume
[select CYLINDER> apply>select two small solid ok]
(4) Meshing:
Meshing > Mesh Tool > Click on "Mesh" > In the dialog box of pick, click "Pick All" Click ok >
Click "Close" to close the Mesh Tool dialog box
(III) Solution:
(1) Analysis Type:
Analysis Type > New Analysis
For type of analysis select Steady-stateand select OK.
(2) Define Loads:
Main Menu >Solution >Define Loads >Apply >Thermal >Temperature >On Areas >Pick the
Bottom areaby mouse click (You can go to File Menu >PlotCtrls >Pan Zoom Rotate, to find
the area, check "Dynamic Mode" to rotate the model by mouse) >Click "ok" >Choose "Temp"
and put "500"as the value >Click "ok"
Main Menu >Solution >Define Loads >Apply >Thermal >Heat Flux >On Areas >Pick the
Top areaby mouse click >Click "ok">Input 3000into the value >Click "ok"
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
13/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
(3) Solve:
Main Menu >Solution >Current LS >Click "ok" >Click "close" after the solution is done and
close the window of commands.
(IV) General Post prop:
Plot Results > Contour Plot > Nodal Solu > DOF Solution >
Nodal temperature > Deformed shape only > OK
Animation:
Utility Menu > PlotCtrls > Animate > Deformed Results
Select the DOF solution > Temperature TEMP > OK
Result:
Thus the modeling and thermal analysis of the given piston was carried out
using the analysis software ANSYS.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
14/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Exp.No:3
Structural Analysis of Piston
Aim:To modeling and carry out structural analysis of the given piston using
the analysis software ANSYS
Procedure:
(I) Preference:
Preferences for GUI filtering > Structural > OK
(II) Preprocessor:
(1) Element:
Element Types > Add/Edit/Delete > Add > Solid > Tet 10node 87
(SOLID 87) > OK
(2) Materials Props:
Material Models Available window:
> Structural > Linear > Elastic > Isotropic
The window titled Linear Isotropic
Properties for Material Number 1 now appears.
Enter 131e3 for EX (Young's Modulus) and
0.311 for PRXY (Poissions Ratio) > OK
(3) Modeling:
Modeling > Create > keypoints>in active CS (keypoint name(x,y))
1(0.06,0)apply
2(0.07,0) apply
3(0.07,0.025)apply
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
15/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
4(0.065,0.025)apply
5(0.065,0.030)apply
6(0.070,0.030)apply
7(0.07,0.105)apply
8(0.065,0.105)apply
9(0.065,0.11)apply
10(0.07,0.11)apply
11(0.07,0.115)apply
12(0.065,0.115)apply
13(0,065,0.12)apply
14(0.07,0.12)apply
15(0.07,0.125)apply
16(0.065,0.125)apply
17(0.065,0.13)apply
18(0.07,0.13)
19(0.07,0.14)apply
20(0,0.14) apply
21(0,0.13) apply
22(0.055,0.13) apply
23(0.055,0.105) apply
24(0.06,0.1) ok
Modeling > Create >Line>straight line,[Joint all keypoint in sequence(1,2,3etc)]
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
16/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Modeling > Create >Area>arbitrary>by lines [Joint all line in sequence (1,2,3..etc)
Modeling>operate>Extrude>Area>About Axix,
[select area> apply>select keypoint 20&21 ok]
Modeling > Create >Volume>Solid cylinder
[enter 0,0.065,0.007,+0.08 apply, 0,0.065,0.007,-0.08 OK]
Modeling>operate>Booleans>subtract>Volume
[select CYLINDER> apply>select two small solid ok]
(4) Meshing:
Meshing > Mesh Tool > Click on "Mesh" > In the dialog box of pick, click "Pick All" Click ok >
Click "Close" to close the Mesh Tool dialog box
(III) Solution:
(1) Analysis Type:
Analysis Type > New Analysis
For type of analysis select static and select OK.
(2) Define Loads:
Define Loads > Apply> Structural >Displacement> On Area >
[select Gudgeon Pin Hole area ]>select All DOF> Click OK
Define Loads > Apply> Structural > Pressure> On Area > (select top area of piston > enter=18e6>
OK
(3) Solve:
Main Menu >Solution >Current LS >Click "ok" >Click "close" after the solution is done and
close the window of commands.
(IV) General Post prop:
Plot Results > Contour Plot > Nodal Solu > DOF Solution >
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
17/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Nodal temperature > Deformed shape only > OK
Animation:
Utility Menu > PlotCtrls > Animate > Deformed Results
Result:
Thus the modeling and structural analysis of the given piston was carried outusing the analysis software ANSYS.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
18/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
EXP: 4
Stress Analysis of Piston ring
Aim: To model and analyse the given piston-ring using ANSYS.
Procedure:
(I) Preference:
Preferences for GUI filtering > Structural > OK
(II) Preprocessor:
(1) Element:
Preprocessor >Element Types > Add/Edit/Delete > Add > Beam > 3D Elastic 4 >ok
(2) Real Constants:
Preprocessor > Real Constants> Add/Edit/Delete
Select add to create a new set.
> Add
select Beam 4 as the element type.
> Type 1 Beam4 > OK
Cross-sectional area is 24,
Area moment of inertia IZZ is 72
Area moment of inertia IYY is 32.Enter the values into the table > OK> Close
(3) Materials Props:
Material Models Available window:
> Structural > Linear > Elastic > Isotropic
The window titled Linear Isotropic
Properties for Material Number 1 now appears.
Enter 131e3 for EX (Young's Modulus) and
0.211 for PRXY (Poissions Ratio) > OK
(4) Modeling:
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
19/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Preprocessor > Modeling> Create > Lines > Arcs> By Cent & Radius
Enter 0 and press enter on the keyboard. Then enter 40 and press enter on the keyboard.
Enter 180 into the Arc length in degrees field.
> OK
(4) Meshing:
Meshing > Mesh Tool > Mesh > Pick All > OK
(III) Solution:
(1) Analysis Type:
Analysis Type > New Analysis
For type of analysis select static and select OK.
(2) Define Loads:
Define Loads > Apply> Structural >Displacement> keypoints > (one side
outer circle select the keypoint) Click OK >
select All DOF.
> OK.
Define Loads > Apply> Structural > Force/Moment> keypoints > other end
keypoint> OK > Pick FY for the direction of the force.
Enter 5 in the Force/moment value field which will apply > OK
If you wish to view a 3D picture of your model select:
> Plot Controls > Style
> Size and Shape
The Size and Shape window opens. Click the check box next to Display of element to turn on the 3D
image
(3) Solve:
The next step is to solve the current load step that has been created. Select:
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
20/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Solve > Current LS. The Solve Current Load Step window will appear. To begin the
analysis select OK.
(IV) General Post prop:
Plot Results > Contour Plot > Nodal Solu > DOF Solution >
Displacement vector sum > Deformed shape only > OK
Animation:
Utility Menu > PlotCtrls > Animate > Deformed Results
Select the DOF solution > USUM > OK
Result:
Thus the modeling and structural analysis of the given piston-ring was carried out using the
analysis software ANSYS.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
21/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Exp:5
Date :
Thermal Analysis of Valve
Aim:To modeling and carry out thermal analysis of the given engine valve
using the analysis software ANSYS.
Procedure:
(I) Preference:
Preferences for GUI filtering > Thermal > OK
(II) Preprocessor:
(1) Element:
Element Types > Add/Edit/Delete > Add > Solid > Tet 10node 87
(SOLID 87) > OK
(2) Materials Props:Material Models Available window:
Thermal > Conductivity > Isotropic > KXX = 16
Specific Heat = 500
Density = 8000
> OK
Materials Props > Temperature Units > Celsius click > OK
(3) Modeling:
Modeling > Create > keypoints>in active CS (keypoint name(x,y))
1(0, 0) apply
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
22/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
2(0.02, 0) apply
3(0.02, 0.002) apply
4(0.015, 0.006) apply
5(0.006, 0.006) apply
6(0.006, 0.115) apply
7(0.005, 0.115) apply
8(0.005, 0.12) apply
9(0.006, 0.12) apply
10(0.006, 0.13) apply
11(0, 0.13)
ok
Modeling > Create >Line>straight line,[Joint all keypoint in sequence(1,2,3etc)]
Modeling > Create >Area>arbitrary>by lines [Joint all line in sequence (1,2,3..etc)
Modeling>operate>Extrude>Area>About Axix,
[select area> apply>select keypoint 1&11 ok]
(5) Meshing:
Meshing > Mesh Tool > Click on "Mesh" > In the dialog box of pick, click "Pick All" Click ok >
Click "Close" to close the Mesh Tool dialog box
(III) Solution:
(1) Analysis Type:
Analysis Type > New Analysis
For type of analysis select Steady-stateand select OK.
(2) Define Loads:
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
23/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Main Menu >Solution >Define Loads >Apply >Thermal >Temperature >On Areas >Pick the
Top areaby mouse click (You can go to File Menu >PlotCtrls >Pan Zoom Rotate, to find the
area, check "Dynamic Mode" to rotate the model by mouse) >Click "ok" >Choose "Temp" and
put "1000"as the value >Click "ok"
Main Menu >Solution >Define Loads >Apply >Thermal >Temperature>On Areas >Pick the
Bottom areaby mouse click >Click "ok">Choose "Temp" and put "3000"as the value >Click
"ok"
(3) Solve:
Main Menu >Solution >Current LS >Click "ok" >Click "close" after the solution is done and
close the window of commands.
(IV) General Post prop:
Plot Results > Contour Plot > Nodal Solu > DOF Solution >
Nodal temperature > Deformed shape only > OK
Animation:
Utility Menu > PlotCtrls > Animate > Deformed Results
Select the DOF solution > Temperature TEMP > OK
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
24/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Result:
Thus the modeling and thermal analysis of the given engine valve was carriedout using the analysis software ANSYS.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
25/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Exp:6
Structural Analysis of Valve
Aim:To modeling and carry out structural analysis of the given engine valve
using the analysis software ANSYS.
(I) Preference:
Preferences for GUI filtering > structural > OK
(II) Preprocessor:
(1) Element:
Element Types > Add/Edit/Delete > Add > Solid > Tet 10node 87
(SOLID 87) > OK
(2) Materials Props:
Material Models Available window:
Preprocessor>Material prop>Material model> Structural > Linear > Elastic > Isotropic
The window titled Linear Isotropic
Properties for Material Number 1 now appears.
Enter 30e6 for EX (Young's Modulus) and
0.3 for PRXY (Poissions Ratio) > OK
(3) Modeling:
Modeling > Create > keypoints>in active CS (keypoint name(x,y))
1(0, 0) apply
2(0.02, 0) apply
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
26/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
3(0.02, 0.002) apply
4(0.015, 0.006) apply
5(0.006, 0.006) apply
6(0.006, 0.115) apply
7(0.005, 0.115) apply
8(0.005, 0.12) apply
9(0.006, 0.12) apply
10(0.006, 0.13) apply
11(0, 0.13)
ok
Modeling > Create >Line>straight line,[Joint all keypoint in sequence(1,2,3etc)]
Modeling > Create >Area>arbitrary>by lines [Joint all line in sequence (1,2,3..etc)
Modeling>operate>Extrude>Area>About Axix,
[select area> apply>select keypoint 1&11 ok]
(5) Meshing:
Meshing > Mesh Tool > Click on "Mesh" > In the dialog box of pick, click "Pick All" Click ok >
Click "Close" to close the Mesh Tool dialog box
(III) Solution:
(1) Analysis Type:
Analysis Type > New Analysis
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
27/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
For type of analysis select static and select OK.
(2) Define Loads:
Define Loads > Apply> Structural >Displacement> On Area >
[the valve is constrained at the top]>select All DOF> Click OK
Define Loads > Apply> Structural > Pressure> On Area > (The pressure is applied on the valve head
)
> enter=18e6> OK
(3) Solve:
Main Menu >Solution >Current LS >Click "ok" >Click "close" after the solution is done and
close the window of commands.
(IV) General Post prop:
Plot Results > Contour Plot > Nodal Solu > DOF Solution >
Nodal temperature > Deformed shape only > OK
Animation:
Utility Menu > PlotCtrls > Animate > Deformed Results
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
28/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Result:
Thus the modeling and thermal analysis of the given engine valve was carriedout using the analysis software ANSYS.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
29/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Exp: 7
Stress Analysis of Piston Pin
Aim:To modeling and carry out structural analysis of the given engine piston-pin using the analysis software ANSYS.
Procedure:
(I) Preference:
Preferences for GUI filtering > Structural > OK
(II) Preprocessor:
(1) Element:
Element Types > Add/Edit/Delete > Add > Solid > Brick 8node 45 > OK
(2) Materials Props:
Material Models Available window:
> Structural > Linear > Elastic > Isotropic
The window titled Linear Isotropic
Properties for Material Number 1 now appears.
Enter 30e6 for EX (Young's Modulus) and
0.3 for PRXY (Poissions Ratio) > OK
(3) Modeling:
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
30/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Preprocessor>modeling>create>volume>cylinder>hollow cylinder
Enter ( 0,0,0.005,0.0075,0.08) ok
(4) Meshing:
Meshing > Mesh Tool > Mesh > Pick All > OK
(III) Solution:
(1) Analysis Type:
Analysis Type > New Analysis
For type of analysis select staticand select OK.
(2) Define Loads:
Define Loads > Apply> Structural >Displacementt> On Area > (one side
outer circle select the area) Click OK > Next click On Area > (another side
outer circle select the area) > click OK.
Define Loads > Apply> Structural > Force/Moment> On nodes > (Center Point click > OK> Pick FY for the direction of the force.
Enter -1000 in the Force/moment value field which will apply > OK
(3) Solve:
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
31/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
The next step is to solve the current load step that has been created. Select:
Solve > Current LS. The Solve Current Load Step window will appear. To begin the analysis
select OK.
(IV) General Post prop:
Plot Results > Contour Plot > Nodal Solu > DOF Solution >
Displacement vector sum > Deformed shape only > OK
Animation:
Utility Menu > PlotCtrls > Animate > Deformed Results
Select the DOF solution > USUM > OK
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
32/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Result:
Thus the modeling and structural analysis of the given piston-pin was carried
out using the analysis software ANSYS.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
33/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Exp : 8
Buckling Analysis of Connecting Rod
Aim:To model and carry out Buckling Analysis of Connecting rodusing the
analysis software ANSYS.
Procedure
(I) Preference:
Preferences for GUI filtering > Structural > OK
(II) Preprocessor:
(1) Element:
Element Types > Add/Edit/Delete > Add > Solid > Quad 4node 42 > Apply
> Brick 8node 45 > OK .
(2) Materials Props:
Material Models Available window:
Structural > Linear > Elastic > Isotropic > EX = 30e6
PRXY = 0.3
> OK
(3)Modeling:
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
34/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Define four new keypoints:
Main menu>preprocessor>modeling>creat>keypoints>In Active CS
1stKP,X=2.5,Y=0.5 [Apply]
2nd
KP,X=3.25,, Y=0.4 [apply]
3rd
KP, X=4,Y=0.33 [apply]
4
th
KP, X=4.75, Y=0.28 [OK]
Create two circular area:
Main menu>preprocessor>modeling>create>area>circle>by dimension.
Rad1=1.4, Rad2=1,THETA1=0,THETA2=180, [Apply] next set
(1.4,1,45,180) [OK]
Offset working plane to XYZ location (6.5)
Utility menu>workplane>offset WP to> XYZ Location
Enter 6.5 [OK]
Utility menu>workplane>change Active CS to> working plane
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
35/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Create two circular areas:
Main menu>preprocessor>modeling>create>area>circle>by dimension.
Rad1=0.7, Rad2=0.4,THETA1=0,THETA2=180, [Apply] next set
(0.7,0.4,135,180) [OK]
Separate overlaps on each area group:
Main menu>preprocessor>Modeling>operate>Booleans>Overlap>Area
Frist select left group of areas, [Apply]
Next, select right group of areas, [OK]
Create a single line from a spline fit to a series of keypoints:
Utility menu>workplane>change Active CS to> Global Cylindrical
Main menu> preprocessor>modeling>create>lines>Splines>spline thru KPs
[Pick in order the six keypoints]
Create a straight line between keypoints:
Main menu> preprocessor>modeling>create>lines>Straight line>
Pick the two keypoints as shown
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
36/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Utility menu>Plot ctrls>Numbering..set line numbers on, [OK]
Utility menu>Plot> Lines.
Create area bounded by lines:
Main menu> preprocessor>modeling>create>Areas Arbitrary> By lines
Pick the four lines(6,1,7,25) [OK]
Add all areas together to form one single area:
Main menu>Preprocessor>Modeling>operate>add>Areas
[Pick All]
Utility menu>workplane>change Active CS to> Global Cartesian
Reflect the area about the X-Z Plane:
Main menu>Preprocessor>Modeling>Reflect>Areas
[Pick All]
Select X-Z plane,[OK]
Add all areas together to form one single area:
Main menu>Preprocessor>Modeling>operate>Boolean>add>Areas
[Pick All]
Extrude the Area:
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
37/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Main menu>Preprocessor>Modeling>operate>Extrude>Area>Along
Normal> [select area, Apply, length of Extrusion=0.5]
Save Data:
(4) Meshing:
Meshing > Mesh Tool > click the Mesh" > In the dialog box of pick, click "Pick All".
(III) Solution:
(1) Analysis Type:
Analysis Type > New Analysis
For type of analysis select Staticand select OK.
*Solution> Unabridged Menu > Click
(2) Define Loads:
Main Menu >Solution >Define Loads >Apply >Structural >Displacement>On Areas >Pick
the Bottom area (two side)by mouse click (You can go to File Menu >PlotCtrls >Pan Zoom
Rotate, to find the area, check "Dynamic Mode" to rotate the model by mouse) >Click "ok" >
Choose All DOF>Click "ok"
Main Menu >Solution >Define Loads >Apply >Structural >Pressure>On Areas >Pick the
Top areaby mouse click (You can go to File Menu >PlotCtrls >Pan Zoom Rotate, to find the
area, check "Dynamic Mode" to rotate the model by mouse) >Pressure Value = 31500>"ok"
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
38/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
(3) Solve:
Main Menu >Solution >Current LS >Click "ok" >Click "close" after the solution is done and
close the window of commands.
** Note: Two times Solution and solve the Analysis.
(1) Analysis Type:
Analysis Type > New Analysis
For type of analysis select Eigen Bucklingand select OK.
Analysis Type > Analysis Option > No. of modes to extract = 5 > OK
(2) Load Step Opts:
Expansion Pass >Single Expand >Expand Modes >
No. of modes to expansion = 5 > OK.
(3) Solve:
Main Menu >Solution >Current LS >Click "ok" >Click "close" after the solution is done and
close the window of commands.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
39/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
(IV) General Post prop:
Read Results > First > Utility Menu > PlotCtls > Animate >
Deformed Results > Select USUM only > OK
Result:
Thus the modeling and Buckling Analysis of Connecting rod was carried out
using the analysis software ANSYS.
For REFERENCE
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
40/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Exp :9
Stress Analysis of
Balancing Weight of Crankshaft
Aim:To model and analyse the given crankshaft using ANSYS.
Procedure:
(I) Preference:
Preferences for GUI filtering > Structural > OK
(II) Preprocessor:
(1) Element:
Element Types > Add/Edit/Delete > Add > Solid > Quad 4node 42 >
Apply > Brick 8node 45 > OK
(2) Materials Props:
Material Models Available window:
> Structural > Linear > Elastic > Isotropic
The window titled Linear Isotropic
Properties for Material Number 1 now appears.
Enter 30e6 for EX (Young's Modulus) and
0.3 for PRXY (Poissions Ratio) > OK
(3) Modeling:
Modeling > Create > keypoints>in active CS (keypoint name(x,y))
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
41/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
1(0, -0.025) apply
2(0.06,-0.025) apply
3(0.03, 0.01) apply
4(0.03, 0.06) apply
5(0.0, 0.06) apply
6(-0.03, 0.06) apply
7(-0.03, 0.01) apply
8(-0.06, -0.025) apply
ok
Modeling > Create >Line>straight line
[Joint all keypoint in sequence(1,2,3etc)]
Modeling > Create >Line>Arc>by Center&Radius
[select KP1 apply select KP8 , 180 OK]
[select KP5 apply select KP4 , 180 OK]
Modeling > Create >Area>arbitrary>by lines
[Joint all line in sequence (1,2,3..etc)
Modeling>operate>Extrude>Area>Along Normal,
[select area> apply>0.02 ok]
Utility menu> Work plane>offset WP by increment>
(0, 0, 0.02) enter [OK]
Modeling > Create >Volume>Cylinder>Solid Cylinder>
(0, 0.06, 0.02, 0.03) [OK]
Modeling>copy>volume>
Select Web-volume [OK] Z-offset in active CS=0.05 [OK]
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
42/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Utility menu> Work plane>offset WP by increment>
(0, 0, 0) enter [OK]
Modeling > Create >Volume>Cylinder>Solid Cylinder>
(0, 0, 0.02, -0.03) [OK]
Utility menu> Work plane>offset WP by increment>
(0, 0, 0.07) enter [OK]
Modeling > Create >Volume>Cylinder>Solid Cylinder>
(0, 0, 0.02, 0.03) [OK]
Modeling>Operate>Booleans>Add>Volume>
Pick All [OK]
(4) Meshing:
Meshing > Mesh Tool > Mesh > Pick All > OK
(III) Solution:
(1) Analysis Type:
Analysis Type > New Analysis
For type of analysis select staticand select OK.
(2) Define Loads:
Define Loads > Apply> Structural >Displacement> On Area > (one side
outer circle select the area) Click OK > Next click On Area> (another side
outer circle select the area) > click OK.
Define Loads > Apply> Structural > Force/Moment> On nodes > (Center Point click > OK
> Pick FY for the direction of the force.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
43/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Enter -1000 in the Force/moment value field which will apply > OK
(3) Solve:
The next step is to solve the current load step that has been created. Select:
Solve > Current LS. The Solve Current Load Step window will appear. To begin the analysis
select OK.
(IV) General Post prop:
Plot Results > Contour Plot > Nodal Solu > DOF Solution >
Displacement vector sum > Deformed shape only > OK
Animation:Utility Menu > PlotCtrls > Animate > Deformed Results
Select the DOF solution > USUM > OK
Result:
Thus the modeling and Stress Analysis of Balancing Weight of Crankshaft was
carried out using the analysis software ANSYS.
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
44/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Exp:10
Vibration Modal Analysis of Camshaft
Aim:To model and carry out Vibration Modal Analysis of Camshaftusing the
analysis software ANSYS.
Procedure:
First create the Catia software modeling the Camshaft and file name and type save the x_t format.
Utility Menu> File > Import > Para > file name (camshaft .x_t) >
Geometry type (All Entities) > Allow Scaling click > OK
(I) Preference:
Preferences for GUI filtering > Structural > OK
(II) Preprocessor:
(1) Element:
Element Types > Add/Edit/Delete > Add > Solid > Quad 4node 42 >
Apply > Brick 8node 45 > OK
(2) Materials Props:
Material Models Available window:
> Structural > Linear > Elastic > Isotropic > EX = 30e6
PRXY = 0.3
Density = 8.3e-5
> OK
(3) Modeling:
Modeling > Create > keypoints>in active CS (keypoint name(x,y))
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
45/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
1(0, 0) apply
2(2.5, 0) apply
3(1, 3) apply
4(0, 4) apply
5(-1, 3) apply
6(-2.5, 0) OK
Modeling > Create >Line>Arc>by Center&Radius
[Select KP1 apply select KP6 , 180 OK]
Modeling > Create >Line>splines>splines thru KPS
[Select KP2,3,4,5,6 apply OK]
Modeling > Create >Area>arbitrary>by lines
[Joint all line in sequence (1,2,3..etc)
Modeling>operate>Extrude>Area>Along Normal,
[Select area> apply>2 ok]
Utility menu> Work plane>offset WP by increment>
(0, 0, 2) enter [OK]
Modeling > Create >Volume>Cylinder>Solid Cylinder>
(0, 0, 2, 2) [OK]
Modeling>copy>volume>
Select Cam-volume [OK] Z-offset in active CS=4[OK]
Modeling>copy>volume>
Select circular-volume [OK] Z-offset in active CS=4[OK]
Utility menu> Work plane>offset WP by increment>
(0, 0, 8) enter [OK]
Modeling > Create >Volume>Cylinder>Solid Cylinder>
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
46/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
(0, 0, 2.5, 2) [OK]
Modeling>copy>volume>
Select circular-volume [OK] Z-offset in active CS=4[OK]
Modeling>copy>volume>
Select 1circular-volume [OK] Z-offset in active CS=-6[OK]
Modeling>copy>volume>
Select Big-circular-volume [OK] Z-offset in active CS=-8[OK]
Repeat steps for Number of cylinder
(4) Meshing:
Meshing > Mesh Tool > Mesh > Pick All > OK
(III) Solution:
(1) Analysis Type:
Analysis Type > New Analysis
For type of analysis select Modaland select OK.
Analysis Type > Analysis Options > click Block Lanczos >
No. of modes to extract = 5 > No. of modes to expand = 5 > OK
(2) Define Loads:
Define Loads > Apply> Structural >Displacement t> On Area > (two side
select the area) Click OK
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
47/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
*Note: Force / Moment & Pressure not applicable.
(3) Solve:
The next step is to solve the current load step that has been created. Select:
Solve > Current LS. The Solve Current Load Step window will appear. To begin the analysis
select OK.
(IV) General Post prop:
Plot Results > Contour Plot > Nodal Solu > DOF Solution >
Displacement vector sum > Deformed shape only > OK
Animation:
Utility Menu > PlotCtrls > Animate > Deformed Results
Select the DOF solution > USUM > OK
Result:
-
7/24/2019 Saux4008-Modeling and Analysis of Engine Components Lab (1)
48/48
SAUX4008-MODELING AND ANALYSIS OF ENGINE COMPONENTS LAB
Thus the modeling and Vibration Modal Analysis of Camshaftwas carried out
using the analysis software ANSYS.