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Development of high precise similar sub-part search technique for automatic mesh generation reusing proven models
- Source :
- Nihon Kikai Gakkai ronbunshu, Vol 85, Iss 880, Pp 19-00138-19-00138 (2019)
- Publication Year :
- 2019
- Publisher :
- The Japan Society of Mechanical Engineers, 2019.
-
Abstract
- We proposed an advanced mesh generation technique that reuses the proven analysis models by similar sub-part search. The purpose of this research is to reduce interactive mesh improvement work time and to comply with the mesh specifications. It is our feature technique to search sub-parts similar to the archived sub-parts of proven models from new design CAD. In this technique, the similar sub-parts are retrieved from a CAD model described by boundary representation and made correspondence relation surface pairs of a retrieval model (proven model) and a target model (CAD of new design). A similarity score is based on the attributed graphs of a retrieval model and a target model. And, this score is calculated by a geometrical similarity and topological similarity. If there is such search noise, unreusing sub-parts must be canceled by interactive operation. This is an obstacle to automation. Therefore, with the goal of eliminating search noise, we developed a technique to improve the accuracy of similar partial shape retrieval. By quantifying the geometric relationships such as concentric circles and face-to-face distance as similarity, high precision could be realized. It was applied to a door switch cover part of an automobile which is a verification model, and it was confirmed that search noises disappeared.
Details
- Language :
- Japanese
- ISSN :
- 21879761
- Volume :
- 85
- Issue :
- 880
- Database :
- Directory of Open Access Journals
- Journal :
- Nihon Kikai Gakkai ronbunshu
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.21eb9cd1e4784cef9c4fab582a917d7f
- Document Type :
- article
- Full Text :
- https://doi.org/10.1299/transjsme.19-00138