Feature-aware reconstruction of trimmed splines using Ricci flow with metric optimization
Keywords
Global parameterization, Ricci flow, CAD, Trimming, Watertight splines, Isogeometric analysis
Abstract
The lack of a compelling tool to automatically or semi-automatically create analysis-suitable spline spaces hampers the progress of the isogeometric framework. In this work, we review current techniques to analyze so-called “trimmed” CAD models and present a new approach, based on surface Ricci flow with metric optimization, that can be used for rebuilding trimmed CAD objects. The method is both theoretically grounded and suitable for use on real engineering objects. We demonstrate its efficacy by rebuilding both the US Army’s DEVCOM Generic Hull vehicle and the chassis of the National Crash Analysis Center’s 1996 Dodge Neon into sets of watertight splines. These reconstructed splines are used in isogeometric analysis on model parts and in performing hybrid finite element/isogeometric crash analysis for the Neon vehicle.
Original Publication Citation
K. M. Shepherd, X. D. Gu, and T. J. R.Hughes. “Feature-aware reconstruction of trimmed splines using Ricci flow with metric optimization,” Computer Methods in Applied Mechanics and Engineering, vol. 1, article no. 115555, 2022.
BYU ScholarsArchive Citation
Shepherd, Kendrick M., "Feature-aware reconstruction of trimmed splines using Ricci flow with metric optimization" (2022). Faculty Publications. 6501.
https://scholarsarchive.byu.edu/facpub/6501
Document Type
Peer-Reviewed Article
Publication Date
2022-12-01
Publisher
Elsevier
Language
English
College
Ira A. Fulton College of Engineering and Technology
Department
Civil and Environmental Engineering
Copyright Use Information
http://lib.byu.edu/about/copyright/