Mô tả:
Generative Part Structural Analysis Expert
CATIA V5 Training
Exercises
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Generative Part
Structural Analysis
Expert
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Version 5 Release 19
September 2008
EDU_CAT_EN_GPE_FX_V5R19
Student Notes:
Generative Part Structural Analysis Expert
Student Notes:
Table of Contents
Advanced Pre-Processing Recap Exercise
Do it Yourself
Results Visualization Recap Exercise
Do it Yourself
Master Exercise: Frequency Analysis
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Crank Shaft Frequency Analysis: Presentation
Frequency Analysis on a Crank Shaft (1): Pre-Processing
Frequency Analysis on a Crank Shaft (2): Computation
Frequency Analysis on a Crank Shaft (3): Visualizing the Resu...
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Generative Part Structural Analysis Expert
Exercise
‘Pre-Processing’ Recap Exercise
20 min.
In this exercise you will practice different tools that you have seen in the pre-Processing lesson.
You will :
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Define a Virtual Part
Define the Restraints
Apply two different types of Loads:
An Acceleration
A Force Density
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Generative Part Structural Analysis Expert
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Do It Yourself (1/2)
Load: Recap_Exercise_1_startup.CATAnalysis
Define a contact virtual part between the bottom
surface of the hanger and the vertex below.
Apply a clearance of 1mm.
Clamp the vertex
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Apply ‘User-defined Restraint’ on the highlighted surface:
Restrain all three translations
Restrain ‘rotation 1’
Select mesh named ‘Mesh to work with’
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vertex
Generative Part Structural Analysis Expert
Do It Yourself (2/2)
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Apply Loads:
Apply an acceleration = – 9.8m/s2 on Z direction
Apply a Vector Force = – 5000N on Z direction
Select mesh named ‘Mesh to work with’
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Generative Part Structural Analysis Expert
Exercise
‘Results Visualization’ Recap Exercise
10 min.
In this exercise you will use different visualization tools to view the analysis results that you
have computed in the previously recap exercise. You will:
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Visualize the Principal Stress
Visualize the Precision Plot
Use the Cut Plane Analysis tool
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Generative Part Structural Analysis Expert
Do It Yourself…
Load: Results_Visualization_recap.CATAnalysis
Display Principal Stress Image
Display Precision Image
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Use Cut Plane Section for both images
Check the Clipping option in Cut Plane Analysis
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Student Notes:
Generative Part Structural Analysis Expert
Master Exercise: Frequency Analysis
You will practice concepts learned throughout the course by building the
master exercise and following the recommended process
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Crank Shaft Frequency Analysis: Presentation
Frequency Analysis on a Crank Shaft (1): Pre-Processing
Frequency Analysis on a Crank Shaft (2): Computation
Frequency Analysis on a Crank Shaft (3): Visualizing the
Results
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Student Notes:
Generative Part Structural Analysis Expert
Exercise
Frequency Analysis: Presentation
P2
Exercises marked with this
callout will work in P2
configuration only
30 min
In this exercise you will run a frequency analysis on a Crank Shaft.
You will:
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Define the Distributed Mass.
Compute the Analysis.
Visualize the modal frequencies and their associated
deformation tendencies
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Generative Part Structural Analysis Expert
Design Intent: Frequency Analysis on a Crank Shaft
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You will perform the free frequency Analysis of crank shaft with flywheel mass. A
Frequency Analysis allows to know the modal frequencies of a part whether it is free
or restrained.
The flywheel is modeled using virtual parts on both sides of and mass is
applied on virtual parts. No restraint is applied to the crank shaft. This analysis type
is called ‘Free Frequency Analysis’.
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Student Notes:
Generative Part Structural Analysis Expert
Design Process: Frequency Analysis on a Crank Shaft
1
Analysis
Pre-Processing
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2
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3
Modal Frequencies
Visualization
Analysis
Computation
Student Notes:
Generative Part Structural Analysis Expert
Exercise
Frequency Analysis on a Crank Shaft (Step1): Pre-Processing
15 min
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Objectives:
Define the distributed mass
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Student Notes:
Generative Part Structural Analysis Expert
Do it Yourself
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Load: catgps_crank_shaft.CATPart
Define Distributed Mass.
Enter the GPS workbench and insert a Free
Frequency Analysis
Apply Rigid Virtual Part on both sides of
crankshaft. The mass of the flywheel and the
damper geometry must be taken into account:
Apply 2kg mass equipment, on both ends using
virtual part as support. (2Kg mass on each virtual
part)
The flywheel and damper gravity centers are
represented and have to be used as part handler
points.
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Student Notes:
Generative Part Structural Analysis Expert
Exercise
Frequency Analysis on a Crank Shaft (Step2): Computation
5 min
Objective:
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Compute the frequency analysis
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Generative Part Structural Analysis Expert
Do It Yourself
Edit the computation parameters and ask for 11 modes
Double-click ‘Frequency Case Solution’
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Compute the frequency analysis
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Generative Part Structural Analysis Expert
Exercise
Frequency Analysis on a Crank Shaft (Step3): Results
10 min
Objective:
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Look at the different deformations tendencies
for the 5 last modal frequencies
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Do It Yourself
Display the deformed mesh for 7th- 11th modal frequencies
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Watch the animation
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Student Notes:
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