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TRANSCRIPT
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Generative PartStructural AnalysisExpert
CATIA TrainingExercises
Version 5 Release 16November 2005
EDU-CAT-EN-GPE-FX-V5R16
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Table of Contents
Advanced Pre-Processing Recap Exercise 3
Do it Yourself 4
Results Visualization Recap Exercise 6
Do it Yourself 7
Master Exercise: Frequency Analysis 8Crank Shaft Frequency Analysis: Presentation 9
Frequency Analysis on a Crank Shaft (1): Pre-Processing 12
Frequency Analysis on a Crank Shaft (2): Computation 14
Frequency Analysis on a Crank Shaft (3): Visualizing the Results 16
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ExercisePre-Processing Recap Exercise
20 min.
In this exercise you will practice different tools that you have seen in the pre-Processing lesson.
You will :
Define a Virtual Part
Define the Restraints
Apply two different types of Loads:An Acceleration
A Force Density
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Do It Yourself (1/2)
Load: Recap_Exercise_1_startup.CATAnalysis
Define a contact virtual part between the bottomsurface of the hanger and the vertex below.
Apply a clearance of 1mm.
Clamp the vertex
Apply Advanced Restraints on the highlighted surface:Restrain all three translations
Restrain rotation 1
Select mesh named Mesh to work with
vertex
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Do It Yourself (2/2)
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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ExerciseResults Visualization Recap Exercise
10 min.
In this exercise you will use different visualization tools to view the analysis results that youhave computed in the previously recap exercise. You will:
Visualize the Principal Stress
Visualize the Precision Plot
Use the Cut Plane Analysis tool
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Do It Yourself
Load: Results_Visualization_recap.CATAnalysis
Display Principal Stress Image
Display Precision Image
Use Cut Plane Section for both images
Check the Clipping option in Cut Plane Analysis
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Master Exercise: Frequency Analysis
You will practice concepts learned throughout the course by building themaster exercise and following the recommended process
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 theResults
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ExerciseFrequency Analysis: Presentation
30 min
In this exercise you will run a frequency analysis on a Crank Shaft.You will:
Define the Restraints and the Loads.
Compute the Analysis.
Visualize the modal frequencies and their associated
deformation tendencies
P2
Exercises marked with this
callout will work in P2configuration only
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Design Intent: Frequency Analysis on a Crank Shaft
You will perform the free frequency Analysis of crank shaft with flywheel mass. AFrequency Analysis allows to know the modal frequencies of a part whether it is freeor restrained.
The flywheel is modeled using virtual parts on both sides of and mass isapplied on virtual parts. No restraint is applied to the crank shaft. This analysis typeis called Free Frequency Analysis.
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AnalysisComputation
Modal FrequenciesVisualization
AnalysisPre-Processing
1
2
3
Design Process: Frequency Analysis on a Crank Shaft
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ExerciseFrequency Analysis on a Crank Shaft (Step1): Pre-Processing
15 min
Objectives:
Define the distributed mass
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Define Distributed Mass.
Enter the GPS workbench and insert a FreeFrequency Analysis
Apply Rigid Virtual Part on both sides of
crankshaft. The mass of the flywheel and thedamper geometry must be taken into account:
Apply 2kg mass equipment, on both ends usingvirtual part as support. (2Kg mass on each virtual
part)
The flywheel and damper gravity centers arerepresented and have to be used as part handler
points.
Do it Yourself
Load: catgps_crank_shaft.CATPart
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ExerciseFrequency Analysis on a Crank Shaft (Step2): Computation
5 min
Objective:
Compute the frequency analysis
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Do It Yourself
Edit the computation parameters and ask for 11 modes
Double-click Frequency Case Solution
Compute the frequency analysis
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ExerciseFrequency Analysis on a Crank Shaft (Step3): Results
10 min
Objective:
Look at the different deformations tendenciesfor the 5 last modal frequencies
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Display the deformed mesh for 7th- 11th modal frequencies
Watch the animation
Do It Yourself