Numerical approach for flexible body with internal boundary movement.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
31 Mar 2023
31 Mar 2023
Historique:
received:
19
01
2023
accepted:
29
03
2023
medline:
1
4
2023
entrez:
31
3
2023
pubmed:
1
4
2023
Statut:
epublish
Résumé
In this paper, a numerical method is proposed for a flexible tether motion that spans two different environments and has large displacement and deformation. When considering the behavior of a tethered system in which the tether cable is subjected to the above conditions, variations of an internal boundary in the tether must be considered. In general, the absolute nodal coordinate formulation (ANCF), a nonlinear finite element method, is effective for the dynamic simulation of a flexible body with large displacement and deformation. However, in conventional methods, such as ANCF, the analysis accuracy decreases and the calculation cost increases when the movement of an internal boundary across different environments is considered. In this study, an efficient numerical approach that considers the variations of an internal boundary by using ANCF using variable-domain finite elements is proposed. In addition, to further improve the calculation efficiency, dimensionless variables are introduced using appropriate representative values. The accuracy of the numerical results obtained using the proposed method, which considers an internal variable boundary, is similar to that for a conventional method.
Identifiants
pubmed: 37002332
doi: 10.1038/s41598-023-32526-3
pii: 10.1038/s41598-023-32526-3
pmc: PMC10066234
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
5302Informations de copyright
© 2023. The Author(s).
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