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
[1]  
Alcoa Fastening Systems & Rings: Airplane Bearing Bracket Challenge, (2015)
[2]  
Allen G., nTopology Modeling Technology, Whitepaper, (2019)
[3]  
Alves C. G., Siefkes T., Automatische Erstellung von Drahtgittermodellen aus Topologieoptimierungen, Stuttgarter Symposium für Produktentwicklung SSP 2021, (2021)
[4]  
Amenta N., Choi S., Kolluri R. K., The Power Crust, Unions of Balls, and the Medial Axis Transform, International Journal of Computational Geometry, Theory and Applications, 19, 2-3, pp. 127-153, (2001)
[5]  
Amroune A., Cuilliere J.-C., Automated Lofting-Based Reconstruction of CAD-Models from 3D Topology Optimization Results, Computer-Aided Design, 145, 1, (2022)
[6]  
Bendsoe M. P., Sigmund O., Topology Optimization: Theory, Methods and Applications, (2004)
[7]  
Blanc C., 3-matic STL 9.0. Von der Topologieoptimierung zum gedruckten Bauteil, Materialise beschreitet neue Wege, 11th Coachulting Forum, (2015)
[8]  
Blum H., A Transformation for Extracting New Descriptors of Shape, Models for the Perception of Speech and Visual Form, pp. 362-380
[9]  
Carter W., Erno D., Abbot D., Bruck C., Wilson G., Wolfe J.B., Finkhousen D.M., Tepper A., Stevens R.G., The GE Aircraft Engine Bracket Challenge: An Experiment in Crowdsourcing for Mechanical Design Concepts, 2014 International Solid Freeform Fabrication Symposium, pp. 1402-1411, (2014)
[10]  
Cuilliere J.-C., Francois V., Drouet J.-M., Towards the Integration of Topology Optimization into the CAD Process, Computer Aided Design and Applications, 11, 2, pp. 120-140, (2013)