Une plate-forme ouverte basée sur des techniques de CAO/CFAO intégrées pour l'optimisation de formes paramétriques

An Open Platform of Parameterized Shape Optimization based-on CAD/CAE Integration Technique

• Auteur / Autrice : Lei Dai
• Direction : Ying Qiao Guo
• Type : Thèse de doctorat
• Discipline(s) : Mécanique
• Date : Soutenance en 2006
• Etablissement(s) : Reims

Mots clés

Mots clés contrôlés

Ingénierie

CFAO, Systèmes de

Conception assistée par ordinateur

Mots clés libres

Parameterized design, Shape optimization, Parameterized surface modeling, Material design

Résumé

The main content in the research is developing an open platform of parameterized shape optimization based-on CAD/CAE integration technique. Through integration, structural analysis and design optimization are seamless combined with parametric geometry modeling and embed into the CAD system. POSHAPE can provide parameterized shape optimization method for 3D solid structure, spatial shell structure and cell structure of composite material. To realize such a general method, integration is the most essential part. In this platform, integration is realized includes: 1) Integrating structure analysis tool of different disciplinary with structure shape optimization. Structure response from different disciplinary will be studied according structure shape. 2) Integrating finite element modeling with parametric geometry modeling through Boundary Representative Tree (simplified as: B-Rep) used in solid modeling. Finite element model is parameterized to be dynamic regenerated during optimization design steps. 3) Parametric solid modeling is extended to realize parameterized surface modeling under integration between surface model definition and solid model. Parameterized finite element modeling of shell structure is also achieved which is similar to that of solid structure