Using Polyhedral Models to Automatically Sketch Idealized Geometry for Structural Analysis

Abstract

is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. applications, etc). Nevertheless, in the fields of structural analysis and computer visualization for example, several adaptations and idealizations of the initial geometry are often necessary. To this end, within this paper a new approach is proposed to simplify an initial manifold or non-manifold polyhedral model with respect to bounded errors specified by the user or set up, for example, from a preliminary F.E. analysis. The topological changes which may occur during a simplification because of the bounded error (or tolerance) values specified are performed using specific curvature and topological criteria and operators. Moreover, topological changes, whether they kept or not the manifold of the object are managed simultaneously with the geometric operations of the simplification process.

Interfacing product views through a mixed shape representation. Part 1: Data structures and operators

“…. , addressing polyhedral models only have not been described here since previous works have already led to their development [20,21] and other scientific contributions have brought extensive results about this configuration [22]. Therefore, the mixed shape representation can be effectively regarded as an approach reducing the prescriptive effect of shape representations in the product development process when this proposed approach is implemented in 'PV Interface in' environments.…”