Computational Geometry Reconstruction from 3D Topology Optimization Results: A New Parametric Approach by the Medial Axis

被引:0
作者
Mayer J. [1 ]
Wartzack S. [1 ]
机构
[1] Friedrich-Alexander-Universität Erlangen-Nürnberg, Engineering Design, Martensstraße 9, Erlangen
来源
Computer-Aided Design and Applications | 2023年 / 20卷 / 05期
关键词
Computational Design; Computer-Aided Design; Geometry Reconstruction; Medial Axis Transformation; Skeletonization; Topology Optimization;
D O I
10.14733/cadaps.2023.960-975
中图分类号
学科分类号
摘要
Topology Optimization (TO) is used to develop high strength, yet lightweight structural components. The geometry reconstruction from raw optimization results is a crucial task and especially challenging to do considering product development’s demand on parametrics. In this paper a new automated approach for computational reconstruction is presented that uses the Medial Axis for abstraction and inclusion of parametrics and features in the reconstruction. The presented method is both highly automated and at the same time offers optional geometry editing within the reconstruction itself. The steps of the method are (1) analysis of the TO result by the Voronoi computed Medial Axis Transform, (2) processing of the Medial Axis Transform into a decomposition, and (3) redesign thereon. Directly usable files of Computer-Aided Design (CAD) are generated. The concept is presented at real world case studies with focus on non-beam-like, structural components. © 2023 CAD Solutions, LLC,.
引用
收藏
页码:960 / 975
页数:15
相关论文
共 42 条
[11]  
Cuilliere J.-C., Francois V., Nana A., Automatic construction of structural CAD models from 3D topology optimization, Computer Aided Design and Applications, 15, 1, pp. 107-121, (2017)
[12]  
Delame T., Kustra J., Telea A., Structuring 3D Medial Skeletons: A Comparative Study, Symposium on Vision, Modeling and Visualization, (2016)
[13]  
Denk M., Rother K., Paetzold K., Fully Automated Subdivision Surface Parametrization for Topology Optimized Structures and Frame Structures using Euclidean Distance Transformation and Homotopic Thinning, Proceedings of the Munich Symposium on Lightweight Design 2020, (2020)
[14]  
Denk M., Rother K., Paetzold K., Subdivision Surface mid-surface reconstruction of topology optimization results and thin-walled shapes using surface skeletons, International Conference on Engineering Design, (2021)
[15]  
GrabCAD: GE Jet Engine Bracket Challenge, (2013)
[16]  
Harzheim L., Strukturoptimierung: Grundlagen und Anwendungen, (2014)
[17]  
Hessel C., Integration der Topologieoptimierung in den CAD-gestützten Entwicklungsprozess, (2003)
[18]  
Hsu M.-H., Hsu Y.-L., Interpreting three-dimensional structural topology optimization results, Computers & Structures, 83, 4, pp. 327-337, (2005)
[19]  
Hsu Y.-L., Hsu M.-S., Chen C.-T., Interpreting results from topology optimization using density contours, Computers & Structures, 79, 10, pp. 1049-1058, (2001)
[20]  
Joshi S., Medina J. C., Menhorn F., Reiz S., Ruth B., Wannerberg E., Yurova A., CAD-integrated Topology Optimization, Bavarian Graduate School of Computational Engineering project report, (2016)