Electromagnetic modeling of lattice structures in additively manufactured electric machines

Chung, S.-U., Han, P., Gadiyar, N. et al. (4 more authors) (2025) Electromagnetic modeling of lattice structures in additively manufactured electric machines. In: 2025 IEEE International Electric Machines & Drives Conference (IEMDC). International Electric Machines & Drives Conference (IEMDC), 18-21 May 2025, Houston, USA. Institute of Electrical and Electronics Engineers, pp. 1328-1332. ISBN: 979-8-3503-7660-9. ISSN: 2994-2926. EISSN: 2994-2950.

Abstract

Recent advancements in metal additive manufacturing (AM) show great potential to revolutionize the design and manufacturing of electromagnetic components used in the field of electrical engineering. Lattice structures directly printed by AM processes typically offer better structural performance with reduced weight, such as high stiffness, surface area, elongation, energy absorption, and porosity, than the solid counterpart. This paper aims to study the electromagnetic modeling of lattice structures used in additively manufactured magnetic cores or windings for electric machines. Three dimensional (3D) electromagnetic finite element (FE) analysis with high performance computing (HPC) shows the highest fidelity in predicting the electromagnetic performance of designs with lattice structures by preserving complex geometry details. FE-based homogenization methods have also been explored to potentially speed up concept design. A case study based on an additively manufactured axial-flux permanent magnet machine with a Hilbert pattern stator validates the discussed electromagnetic modeling approaches.

Metadata

Item Type:	Proceedings Paper
Authors/Creators:	Chung, S.-U. Han, P. Gadiyar, N. Severson, E. Goodall, A. https://orcid.org/0000-0002-4773-0321 Gottipati, P. Solveson, M.
Copyright, Publisher and Additional Information:	© 2025 The Authors. Except as otherwise noted, this author-accepted version of a proceedings paper published in 2025 IEEE International Electric Machines & Drives Conference (IEMDC) is made available via the University of Sheffield Research Publications and Copyright Policy under the terms of the Creative Commons Attribution 4.0 International License (CC-BY 4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/
Keywords:	Manufacturing Engineering; Engineering; Electrical Engineering; Electronics, Sensors and Digital Hardware; Affordable and Clean Energy
Dates:	Published (online): 4 July 2025 Published: 4 July 2025
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > School of Mechanical, Aerospace and Civil Engineering
Date Deposited:	06 Feb 2026 12:05
Last Modified:	06 Feb 2026 15:26
Status:	Published
Publisher:	Institute of Electrical and Electronics Engineers
Refereed:	Yes
Identification Number:	10.1109/iemdc60492.2025.11060968
Sustainable Development Goals:
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:237078

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Electromagnetic modeling of lattice structures in additively manufactured electric machines

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