Research on modeling joining and joining modification method of hybrid FE-SEA model.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
22 Sep 2023
22 Sep 2023
Historique:
received:
24
03
2023
accepted:
21
09
2023
medline:
23
9
2023
pubmed:
23
9
2023
entrez:
22
9
2023
Statut:
epublish
Résumé
Since the connection method at the boundary of the hybrid FE-SEA (finite element-statistical energy analysis, FE-SEA) model affects the overall calculation accuracy of the model, the missing or inaccurate connection relation will lead to a large error in the model calculation. In order to effectively solve the calculation error caused by the connection problem of hybrid FE-SEA model, this paper starts from the modeling methods and connection relations of "hybrid-point" connection, "hybrid-line" connection and "hybrid-surface" connection. In order to solve the modeling method and correction problems of the "hybrid-point" connection in the hybrid FE-SEA model, the "out-of-plane" wave motion equation at the "hybrid-point" connection was established by using the superposition principle of plane waveforms in polar coordinate system. The "hybrid-point" connection and wave-number relation in Cartesian coordinate system are studied. The radiation radius correction method of "hybrid-point" connection is proposed. An example is given to verify the effectiveness of the method. In order to solve the modeling and correction problem of "hybrid-line" in hybrid model, a "hybrid-line" connected triangular waveform function model was established by using the method of linear difference. The direct field dynamic stiffness matrix of "hybrid-line" connection in node coordinate system is studied. According to the shape function of the "hybrid-line" connection wavenumber space, a method to correct the shape function of the "hybrid-line" connection is proposed, and the validity of the method is verified.
Identifiants
pubmed: 37740011
doi: 10.1038/s41598-023-43250-3
pii: 10.1038/s41598-023-43250-3
pmc: PMC10517012
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
15853Informations de copyright
© 2023. Springer Nature Limited.
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