(Downloads - 0)
For more info about our services contact : help@bestpfe.com
Table of contents
1 Introduction général
1.1 Récupération d’assemblage : problèmes
2 Revue de littérature
3 Cadre de récupération d’assemblage
3.1 Couche de structure
3.2 Interface assembly layer
3.3 Couche de forme
3.4 Couche statistique
3.5 Représentation graphique
3.6 Procédure de matching
4 Critères de similitude
4.1 Similitude de noeuds
4.2 Similitude de arcs
4.3 Exemple
5 Évaluation de la similarité
5.1 Mesure de similarité de forme : μshape
5.2 Mesure de similarité de joint : μjoint
5.3 Mesure de similarité de position : μposition
5.4 Mesure de similarité de structure : μstructure
5.5 Combinaison de mesures de similarité pour différents niveaux de similarité
6 Expérimentes et discussions
6.1 Bride
6.2 Réducteurs planétaires
7 Conclusion et perspectives
1 Scientific positioning of the research
1.1 Product Lifecycle
1.1.1 Product Development Process
1.1.2 PLM Systems
1.1.3 Digital Mock-Up in the Product Lifecycle
1.2 Elements of a Digital Mock-Up
1.2.1 Geometrical data
1.2.2 Product structure
1.2.3 Components’ positioning
1.2.4 Assembling CAD model
1.2.5 Attributes
1.3 Assembly retrieval: application scenarios
1.3.1 Types of similarities
1.3.2 Digital model reuse
1.3.3 Product information reuse
1.3.4 Product standardization & rationalization
1.3.5 Design update & maintenance
1.3.6 Reverse engineering
1.3.7 Synthesis on the scenarios
1.4 Assembly retrieval: issues
1.5 Conclusions
2 State of the art
2.1 Criteria for evaluating literature in assembly model retrieval
2.1.1 Context
2.1.2 Assembly characterization
2.1.3 Assembly descriptor
2.1.4 Query specification
2.1.5 Type of similarity
2.2 Assembly model retrieval literature
2.2.1 Retrieval methods of globally similar models using global assembly descriptors
2.2.2 Retrieval methods for globally similar models using local assembly descriptors
2.2.3 Retrieval methods for globally and partially similar models
2.2.4 Assessment of the assembly model retrieval literature
2.3 Assembly information extraction
2.3.1 Detection of assembly relationships
2.3.2 Classification of assembly components
2.4 Conclusions: synthesis of the needs
3 Overall framework
3.1 Retrieval system requirements
3.1.1 Search flexibility
3.1.2 Search effectiveness
3.1.3 Ease of use
3.1.4 Informativeness of the results
3.1.5 System openness
3.2 Framework architecture
3.2.1 User interface level
3.2.2 Functional level
3.2.3 Data level
3.3 Conclusions: remarks about the framework
4 From CAD models to Enriched Assembly Models
4.1 Assembly descriptor requirements
4.2 The Enriched Assembly Model
4.2.1 Structure layer
4.2.2 Interface assembly layer
4.2.3 Shape layer
4.2.4 Statistic layer
4.3 The EAM in attributed graph representation
4.4 Creation of the Extended Assembly Model descriptor
4.4.1 The considered functional sets
4.4.2 Enriched Assembly Model creation
4.4.3 Module « Structure creation »
4.4.4 Module « Component relationship detection »
4.4.5 Module « Part statistics computation »
4.4.6 Module « Repeated component pattern detection »
4.4.7 Module « Assembly statistics computation »
4.4.8 Module « Part model tessellation »
4.4.9 Module « Shape descriptor computation »
4.4.10 Module « Shape-based part classification »
4.4.11 Module « Component classification »
4.4.12 Module « Shape-and-context-based part classification »
4.4.13 Creation of EAM for the query model
4.5 Conclusions: results and possible extension
5 Assembly models comparison
5.1 EAMs comparison
5.1.1 Graph similarity
5.1.2 Assembly similarity through association graph
5.1.3 Matching algorithm
5.2 Similarity assessment
5.2.1 Shape similarity measure: μshape
5.2.2 Joint similarity measure: μjoint
5.2.3 Position similarity measure: μposition
5.2.4 Structure similarity measure: μstructure
5.2.5 Combination of similarity measures for different type of similarities
5.3 Conclusion
6 Results and discussion of the developed prototype
6.1 Model dataset organization
6.2 Developed prototype
6.2.1 Development environment
6.2.2 Visualization and browsing of the results
6.3 Results and discussion
6.3.1 Flange
6.3.2 Planetary gearboxes
6.3.3 Bearing
6.3.4 Combination of similarity criteria
6.4 Conclusion
Conclusion and perspectives



