Thin part identification for CAD model classification
Article dans une revue avec comité de lecture
Date
2015Journal
Engineering ComputationsRésumé
Purpose – The purpose of this paper is to focus on the characterization and classification of parts with respect to the meshing issue, and notably the meshing of thin parts difficulty handled automatically and which often requires adaptation steps. The objective is to distinguish the so-called thin parts and parts with thin features from the other parts. Design/methodology/approach – The concepts of thin part and part with thin features are introduced together with the mechanisms and criteria used for their identification in a CAD models database. The criteria are built on top of a set of shape descriptors and notably the distance distribution which is used to characterize the thickness of the object. To speed up the identification process, shape descriptors are computed from tessellated parts. Findings – A complete modular approach has been designed. It computes shape descriptors over parts stored in a directory and it uses criteria to distinguish three categories: thin parts, parts with thin features and other parts. Being the three categories identified, the user can spend more time on the parts that are considered as more difficulty meshable. Research limitations/implications – The approach is limited to the three above mentioned categories. However, it has been designed so that the values corresponding to the shape descriptors and associated meshing qualities can easily be inserted within a machining learning tool later on. Practical implications – The use of the developed tool can be seen as a pre-processing step during the preparation of finite element (FE) simulation models. It is automatic and can be run in batch and in parallel. Originality/value – The approach is modular, it is simple and easy to implement. Categories are built on top of several shape descriptors and not on a unique signature. It is independent of the CAD modeler. This approach is integrated within a FE simulation model preparation framework and help engineers anticipating difficulties when meshing CAD models.
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Communication avec acteNowadays, industrial CAD models databases are becoming larger and larger, thus inaugurating new challenges for their management during the product design process. Unfortunately, neither the PDM nor PLM systems are good at ...
-
Communication avec actePETROV, Aleksandar; VERON, Philippe; GIANNINI, Franca; FALCIDIENO, Bianca; PERNOT, Jean-Philippe (2014)Nowadays, it is commonly admitted that the aesthetic appearance of a product has an enhanced role in its commercial success. Therefore, understanding and manipulating the aesthetic properties of shapes in the early design ...
-
Article dans une revue avec comité de lectureLI, Zongcheng; GIANNINI, Franca; VERON, Philippe; FALCIDIENO, Bianca; PERNOT, Jean-Philippe (Springer Verlag, 2016)Today, digital data such as 2D images, 3D meshes and 3D point clouds are widely used to design virtual environments (VE). Most of the time, only one type of those multimodal data is used to describe and specify the shapes ...
-
Article dans une revue avec comité de lecturePETROV, Aleksandar; GIANNINI, Franca; VÉRON, Philippe; FALCIDIENO, Bianca; PERNOT, Jean-Philippe (Springer Verlag, 2019)Designing appealing products plays a key role in commercial success. Understanding the relationships between aesthetic properties and shape characteristics of a product can contribute to define user-friendly and interactive ...
-
Communication avec acteLI, Zongcheng; GIANNINI, Franca; FALCIDIENO, Bianca; VERON, Philippe; PERNOT, Jean-Philippe (Proceedings of the 4th IEEE Int. Conference on Cognitive Infocommunications (CogInfoCom'13), 2013)The construction of a Virtual Environments (VE) requires a long iterative modeling and modification process. Depending on the final purposes, many actors can be involved both in the early conception and in the detailed ...