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Modification of semantically enriched FE mesh models

Ruding Lou 1 
1 INSM (Ingénierie Numérique de Systèmes Mécanique)
IMATI - Istituto di Matematica Applicata e Tecnologie Informatiche, LSIS - Laboratoire des Sciences de l'Information et des Systèmes
Abstract : Behaviour analysis is largely performed on the virtual model of the product before its physical manufacturing. Anyhow, the process could be further optimised especially during the product behaviour optimisation phase. This process involves repetition of four main processing steps: CAD design, mesh creation, enrichment of physical semantics and Finite Element Analysis (FEA). The product behaviour analysis is performed on the first design solution as well as on the numerous successive product optimisation loops. Each design solution evaluation necessitates the same time as required for the first product design and it is particularly crucial in the context of maintenance and lifecycle assessment. This thesis proposes a new framework for CAD-less product optimisation through FEA, which reduces the mesh preparation and semantics enrichment activities. More concretely, the idea is to directly operate the firstly created FE mesh, enriched with semantics, to perform the product modifications required to achieve its optimised version. In this thesis, the underlying concepts and the devised components for the development of such CAD-less operator are discussed. A high-level operator specification is proposed according to a modular structure that allows an easy realisation of different mesh modification operators. Finally, four instances of this high-level operator are described: merging, cracking, drilling and filleting. These operators are prototyped and validated on academic and industrial FE mesh models, thus clearly showing the feasibility of our approach.
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Submitted on : Tuesday, July 12, 2011 - 2:17:21 PM
Last modification on : Saturday, June 25, 2022 - 7:48:41 PM
Long-term archiving on: : Thursday, October 13, 2011 - 2:36:04 AM


  • HAL Id : pastel-00608202, version 1


Ruding Lou. Modification of semantically enriched FE mesh models. Computer Aided Engineering. Arts et Métiers ParisTech, 2011. English. ⟨NNT : 2010ENAM0017⟩. ⟨pastel-00608202⟩



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