Edu Cat en Gpe Fx v5r16 Toprint

8/3/2019 Edu Cat en Gpe Fx v5r16 Toprint

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Generative Part Structural Analysis Expert

CopyrightDASSAULTSYSTEMES

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

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