Method, Models and Tools for CAD-CAE Integration
Okba Hamri, Jean-Claude Leon, Franca Giannini and Bianca Falcidieno
Affiliation: Department of Mechanical Engineering, University A. Mira 06000, Bejaia, Algeria.
Computer Aided Design (CAD) and Computer Aided Engineering (CAE) are two significantly different disciplines, and hence they require different shape models representations. As a result, models generated by CAD systems often need to be submitted to shape transformations for Finite Element Analysis (FEA). In this paper, a new approach is proposed to ease integration between CAD and CAE also outlining some patents. It is based on new shape representation called mixed shape representation that supports simultaneously a B-Rep (manifold and non-manifold) and a polyhedral representation to create a robust link between the CAD and CAE environments. Both representations are maintained through the same topology description called the High Level Topology (HLT), which represents a common requirement for simulation model preparation. An innovative approach to FE model preparation based on the mixed representation is presented in this paper. Thus a set of necessary tools is associated to the mixed shape representation, which contributes to reduce, as much as possible, the time of a model preparation process.
Keywords: CAD-CAE integration, FE model preparation, mixed shape representation, simplification feature, software architecture
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