Integration geometrie-maillage appliquee aux methodes numeriques
Keywords:
CAD/CAM, automatic mesh generation, three-dimensional, concurrent engineeringAbstract
The work presented here takes place in the general evolution of CAD/CAM systems on the way to a better integration of all functions involved in the design and manufacturing process of mechanical parts (concurrent engineering). We are propounding here an approach of the automatic three-dimensional FE mesh generation problem featuring a pre-optimization based on the a priori evaluation of a dual geometric model (CSG-Exact BREP) in order to identify, directly and automatically, geometric singularities causing stress concentration. This appoach permits to integrate, in a better way, the analysis step in the whole CAD/CAM process in order to achieve the concurrent engineering concept.
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