Course Situation and Event Driven Models for Multilevel Abstraction Based Virtual
Engineering Spaces
Óbuda UniversityJohn von Neumann Faculty of Informatics
Institute of Applied Mathematics
Lecture and laboratory 1.
Feature driven contextual modeling
László Horváth university professor
http://users.nik.uni-obuda.hu/lhorvath/
A prezentációban megjelent képernyő-felvételek a CATIA V5 PLM rendszernek, az Óbudai Egyetem Intelligens Mérnöki Rendszerek Laboratóriumában telepített installációján készültek, valóságos működő
modellekről, a rendszer saját eszközeivel.
Ez a prezentáció szellemi tulajdon. Hallgatóim számára rendelkezésre áll. Minden más felhasználása és másolása nem megengedett!
CATIA V5 PLM rendszer a Dassult Systémes Inc. és a CAD-Terv Kft segítségével üzemel laboratóriumunkban
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Principle and modeling by features
Demand Solution
Information loss free information exchange
IPIM, product model (ISO 13303), AP
Engineering task specific model objects Form feature driven product definition
1990-2000
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Feature Modifies model by a definite manner through contextual connections with previously
defined features.
Feature driven modelingConstruction of product model by a series of features.
Three leveled modeling of form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Level 1: Application feature
Level 2: Form feature
Level 3: Form feature representation
Form Feature Information Model (FFIM)
Application specific attributes
The form feature itself
Boundary representation
Groups of form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Dress-Up
Surface-Based
Reference Elements
Associating Bodies
TransformationsTranslations and rotations
Patterns
These groups are defined according to modification principle and method.In practice, these groups are divided to subgroups according to the purpose of the modification.
Features
Form
Volume adding
Volume subtracting
Connecting features
On edge
On surface
On shell
Volume adding form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Volume subtracting form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Volume subtracting form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Dress-Up form features - On edge
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Dress-Up form features - On surface
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Dress-Up form features - On shell
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Dress-Up form features - On shell
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Dress-Up form features - On shell
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Surface-Based form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Surface-Based form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Transformation form features - rotation
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Transformation form features - Patterns
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Transformation form features - Patterns
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Transformation form features - Patterns
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Transformation form features - Patterns
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Transformation form features - Patterns
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Reference Element form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Associating Bodies form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Associating Bodies form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Associating Bodies form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Associating Bodies form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Associating bodies form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Associating bodies form features
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Feature parameters
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Dimension
Limiting featureCurve
Surface
Chain of lines and curves
Constraints
Shape adding feature
Reference feature
Activeness
Feature parameters
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Dimension, constraints, and shape adding chain of lines and curves
Feature parameters
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Dimension, constraints, and shape adding chain of lines and curves
Feature parameters
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Dimension, constraints, and shape adding chain of lines and curves
Limiting feature parameters
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Limiting feature parameters
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Activeness feature parameters
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Contextual chain of features – principle
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
F1 P1 F2 P3
XY plane Plane Pl
Offset of the XY plane
F3 P2
Contour Co
In the XY plane Pl
Branch in a graph structure
Understanding form features
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Laboratory task SEMAL2E1
This task is composed by the examples of feature and feature parameter types on slides 6-37