A topology optimization algorithm for magnetic structures based on a hybrid FEM-BEM method utilizing the adjoint approach.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
21 Jan 2022
21 Jan 2022
Historique:
received:
17
06
2021
accepted:
14
12
2021
entrez:
22
1
2022
pubmed:
23
1
2022
medline:
23
1
2022
Statut:
epublish
Résumé
A method to optimize the topology of hard as well as soft magnetic structures is implemented using the density approach for topology optimization. The stray field computation is performed by a hybrid finite element-boundary element method. Utilizing the adjoint approach the gradients necessary to perform the optimization can be calculated very efficiently. We derive the gradients using a "first optimize then discretize" scheme. Within this scheme, the stray field operator is self-adjoint allowing to solve the adjoint equation by the same means as the stray field calculation. The capabilities of the method are showcased by optimizing the topology of hard as well as soft magnetic thin film structures and the results are verified by comparison with an analytical solution.
Identifiants
pubmed: 35064136
doi: 10.1038/s41598-021-04246-z
pii: 10.1038/s41598-021-04246-z
pmc: PMC8782837
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1119Informations de copyright
© 2022. The Author(s).
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