Edu Cat en v5s FF v5r19 Lesson01 Toprint
Edu Cat en v5s FF v5r19 Lesson01 Toprint
Edu Cat en v5s FF v5r19 Lesson01 Toprint
Student Notes:
CATIA V5 Training
Foils
CATIA V5 Surface
Design
Copyright DASSAULT SYSTEMES
Version 5 Release 19
August 2008
EDU_CAT_EN_V5S_FF_V5R19
Student Notes:
Lesson 1: Introduction to Generative Shape Design
Target Audience
• Users familiar with CATIA V5 Fundamentals
• Users who want to learn how to create advanced Mechanical Surfaces
Prerequisites
Students attending this course must be familiar with: 3 days
Copyright DASSAULT SYSTEMES
• CATIA V5 Fundamentals
• Microsoft Windows Operating System
Student Notes:
Class Agenda
Day 1
Lesson 1 – Introduction to CATIA Surfaces
Lesson 2 – Wireframe Creation
Lesson 3 – Surface Creation
Day 2
Lesson 4 – Surface Re-limitation and Connection
Lesson 5 – Surface Check Tools
Day 3
Lesson 6 – Surfaces in an MML environment
Master Project
Additional Exercise (Mobile Phone and Plastic Bottle)
Class Agenda
Student Notes:
About the Student Guide
Using the Student Guide
This student guide is intended to be used under the guidance of a certified CATIA instructor. The examples
and case studies are designed to be demonstrated by the instructor.
Exercises/Case Studies
This course illustrates the process-based approach in two ways: Exercises and Case studies. Exercises
give you the opportunity to apply and practice during the lecture/demonstration portion of the course. They
are designed to represent typical design and modeling situations. Extra exercises have been included in this
guide to accommodate students who want to practice modeling. The Case studies provide a context in
which you would use particular tools and methods, and illustrate the process flow to be followed for a
project.
Feedback
Dassault Systemes gladly accepts feedback and suggestions on its courseware. Send your feedback by
mail or e-mail to:
• Mail: Dassault Systemes Education Department
22 Quai Gallieni
Copyright DASSAULT SYSTEMES
Student Notes:
Conventions Used in the Student Guide
Example page:
Use the following steps to create a new
The following typographic conventions are used in the student document in CATIA:
guide:
• Bold text within a sentence denotes options selected from
1. Click Start > Mechanical Design >
the CATIA menu bar. Part Design.
• Red text denotes the name of a tool, icon, button, or window 2. Create new part.
option. a.Click File > New.
• Italic text within a sentence is used to apply emphasis on key b.Select Part from the New window.
words. c.Click OK.
• Numerical lists are used in sequential lists, such as the steps
in a procedure.
• Lower-case alphabetical sub-lists are used in sequential sub-
lists, like steps in an exercise procedure. 2b
Student Notes:
Case Study: Introduction to Generative Shape Design
Each lesson in this course contains a case study, which helps to explain the procedures and concepts
covered in the lesson. You will be provided with different case studies to help you to practice and gain
confidence.
The focus of the case study in this lesson is to understand how to access Surface Design workbench and
to manage a few basic tools.
Copyright DASSAULT SYSTEMES
Student Notes:
Design Intent
Each case study contains a set of model requirements, known as the design intent. The first case study
does not contain a design intent because you are not designing anything. However, by the end of this
lesson you should be able to:
Open the given part consisting of the ‘Air Craft’ model E
in the Generative Shape Design (GSD) Workbench.
Get familiar with the user interface.
• Study the model along with the nomenclature
given to different surfaces in the specification C
tree. B
Study the Surface, Wireframe and Operations.
• Scan the model to understand the methodology A
and sequence of operations used to build the D
surfaces.
Create separate containers for Surfaces, Wireframes
and Operations for different parts of the Aircraft..
• Create individual Geometrical Set for each part A. Fuselage - A
of the Aircraft. Under these Geometrical Sets,
create sub-sets for separating the Wireframes, B. Fuselage - B
Operations and Surfaces (as shown in the C. Fuselage - C
Copyright DASSAULT SYSTEMES
Specification tree ).
D. Wings
Finally Group the features from each Geometrical
Set ( which are referred in the model ), thus E. Tail
minimizing the tree length of the tree.
Student Notes:
Stages in the Process
Student Notes:
1. Introduction to
Generative Shape
Design
2. Managing Features in the
Specification Tree
Copyright DASSAULT SYSTEMES
Student Notes:
Introduction to Surface Design
Wireframe and surface geometry is often needed to define models with complex shapes. Surface
geometry may need to be integrated into the solid model to capture its design intent.
The shape design process will be discussed later, but for now it is important to consider two key
points:
A. Wireframe and surface geometry is used to define complex 3D shapes.
B. Wireframe, surface and solid geometry form an integrated set of modeling capabilities
that enable you to capture the design intent.
Copyright DASSAULT SYSTEMES
Student Notes:
The Generative Shape Design Workbench (GSD) (1/3)
Easy to Use
Student Notes:
The Generative Shape Design Workbench (GSD) (2/3)
Student Notes:
The Generative Shape Design Workbench (GSD) (3/3)
Relational Design
Wireframe and surface elements can be
designed in the context of a part or an
assembly. While designing in context, you
can control the propagation of
modifications. You can reuse an existing
surface and link it to other models to
support concurrent engineering.
Student Notes:
Accessing the Generative Shape Design Workbench
1B
2
Copyright DASSAULT SYSTEMES
Student Notes:
Generative Shape Design Workbench User Interface (1/5)
C
Copyright DASSAULT SYSTEMES
H G
Student Notes:
Generative Shape Design Workbench User Interface (2/5)
C
Copyright DASSAULT SYSTEMES
Student Notes:
Generative Shape Design Workbench User Interface (3/5)
A. Points F. Offset 2D 3D
a. Point a. Parallel Curve
b. Point and Planes b. 3D Curve Offset
Repetition A B C D E F G H
G. Circle - Conic
c. Extremum
a. Circle A B
d. Extremum Polar
b. Corner
B. Line - Axis
c. Connect Curve
a b c d a b c
a. Line
d. Conic
b. Axis
H. Curves
c. Polyline D F
a. Spline
C. Plane
b. Helix
D. Projection-Combine c. Spiral a b c a b
a. Projection d. Spine
G H
b. Combine e. Isoparametric
Copyright DASSAULT SYSTEMES
c. Reflectline Curve
E. Intersection a b c d a b c d e
Student Notes:
Generative Shape Design Workbench User Interface (4/5)
d. Cylinder A
B. OffsetVar
a. Offset
a b c d
b. Variable Offset
c. Rough Offset B
C. Sweeps
a. Sweep
a b c
b. Adaptive Sweep C
D. Fill
E. Multi-Sections surface
a b
Copyright DASSAULT SYSTEMES
F. Blend
Student Notes:
Generative Shape Design Workbench User Interface (5/5)
b. Trim
C D
C. Extracts
a. Boundary
b. Extracts a b c a b c d e
c. Multiple Extracts
E
D. Fillets
a. Shape Fillet
Copyright DASSAULT SYSTEMES
b. Edge Fillet
a b c d e f
c. Variable Fillet
d. Face-Face Fillet
e. Tritangent Fillet
Student Notes:
Generative Shape Design Workbench Terminology
A
A. A Part is a combination of a PartBody, Geometrical
Sets and Ordered Geometrical Sets.
B. A PartBody and a Body contain solids along with
their creation history. B
C. A Geometrical Set is the default container for
wireframe and surfacic elements. In a Geometrical
Set, there is flexibility to reorder the features without C
affecting the final result. This is a non-linear set.
D. An Ordered Geometrical Set is a linear set in which
the sequence of creation is important. It consists of
wireframes, surfaces and solid bodies. Any feature in
this set can be set as “in work object”.
D
Copyright DASSAULT SYSTEMES
Student Notes:
Surface Design Workbench General Process (1/2)
Generative Shape Design (GSD) plays an important role in the process of Forward and Reverse
Engineering in a product design cycle.
Quick Surface
Multi-CAD Model
Reconstruction
Generative
Shape Design
(GSD)
Simple
Conceptual Sketch Tracer
Modeling
Copyright DASSAULT SYSTEMES
Freestyle
Student Notes:
Surface Design Workbench General Process (2/2)
7
5
6
Copyright DASSAULT SYSTEMES
Student Notes:
Student Notes:
Managing Features and Geometrical Sets
Student Notes:
What is a Geometrical Set?
Student Notes:
Managing Geometrical Sets (1/3)
Student Notes:
Managing Geometrical Sets (2/3)
Reorder Children
Using the reordering tool, you can move the
features in a Geometrical Set to another location
within the set without modifying the geometry.
Edit > Object > Reorder Children.
Student Notes:
Managing Geometrical Sets (3/3)
Model Scan
Model Scan helps you to review the creation of
a model, one feature at a time. You can use
this tool to see a step-by-step replay of how a
model (made by another designer) was
created. To use the Model scan, click
Edit > Scan or Define in Work Object
Parent/Child
The Parent/Child tool displays all the parents
and children of a selected feature. You can use
this tool to check the different types of
relationships that exist in a model.
To use the Parent/Child tool, right-click on the
feature and select the Parent/Children
command.
Copyright DASSAULT SYSTEMES
Student Notes:
What is an Ordered Geometrical Set?
Student Notes:
Geometrical Set Vs Ordered Geometrical Set
Sr.
Geometrical Sets (GS) Ordered Geometrical Sets (OGS)
No.
1 Elements in this set can be shuffled irrespective of Elements in this set maintain the linearity with
their sequence of creation. respect to their order of creation.
2 The parent element in this set is not absorbed after The parent in this set is absorbed after performing
any operation. Hence an element can be used & an operation and cannot be reused again.
reused at different levels.
3 Features in this set cannot be set as “in work Any feature in this set can be set as “in work
object” object” and the features located after it are neither
accessible nor visible.
4 Maintains better flexibility. Maintains better linearity for understanding the
design flow.
5 Geometrical Sets cannot be converted to Ordered Ordered Geometrical Sets can be converted to
Geometrical Sets. Geometrical sets.
6 Two or more features can be grouped to form a Ordered Geometrical Sets cannot be grouped.
“Grouped Geometrical Set”.
It is recommended to use OGS when you want to maintain linearity in your model.
Copyright DASSAULT SYSTEMES
Use Geometrical Sets if you want to design a model with the existing surfaces.
Student Notes:
Hybrid Design
Student Notes:
To Sum Up
In the following slides you will find a summary of the topics covered in this lesson.
Copyright DASSAULT SYSTEMES
Student Notes:
Introduction to Generative Shape Design
Student Notes:
Managing Features in Specification Tree
Student Notes:
Exercise 1A
Recap Exercise
15 min
In this exercise, you will learn to manage, arrange, reorder and group the features in the
specification tree according to your design requirements. You will also learn to scan the
model to understand the sequence of operation used in modeling the part. Detailed
instructions for this exercise are provided.
Student Notes:
Exercise 1A (1/4)
Student Notes:
Exercise 1A (2/4)
Student Notes:
Exercise 1A (3/4)
Student Notes:
Exercise 1A (4/4)
8a
8. Create a Group
Group the features –Parting Line WF and Side
Contour WF- from the Wireframe Geometrical set.
a. Select the Wireframe Geometrical set
b. Right-click on the selection
c. Click Wireframe Objects >Create Group
d. Select the features to be Grouped
e. Click OK
8c
8d
Copyright DASSAULT SYSTEMES
8e
Student Notes:
Exercise 1A: Recap
Student Notes:
Exercise 1B
Recap Exercise
15 min
In this exercise, you will observe the basic difference in the characteristics of a Geometrical
set (GS) and an Ordered Geometrical set (OGS). You will also observe the characteristics of
GS and OGS in the hybrid design environment. High-level instructions for this exercise are
provided.
Understand the behavior of OGS and GS when implied with reorder command.
Understand the Parent/Child structure under a Hybrid design environment.
Copyright DASSAULT SYSTEMES
Student Notes:
Exercise 1B (1/3)
Student Notes:
Exercise 1B (2/3)
Student Notes:
Exercise 1B (3/3)
Observations
Student Notes:
Exercise 1B: Recap
Student Notes:
30 min
Using the techniques mentioned in this lesson and tips from the
Copyright DASSAULT SYSTEMES
Student Notes:
Do It Yourself: Introduction to GSD
Student Notes:
Do It Yourself: Introduction to GSD
Student Notes:
Case Study: Introduction to GSD Recap