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Hamri O.,University of Abderrahmane Mira de Béjaïa | Leon J.-C.,Grenoble Institute of Technology | Giannini F.,Institute for Applied Mathematics and Computer Technology | Falcidieno B.,Institute for Applied Mathematics and Computer Technology
Recent Patents on Mechanical Engineering | Year: 2010

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. © 2010 Bentham Science Publishers Ltd.

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