A Time-Domain Finite-Difference Method for Bending Waves on Infinite Beams on an Elastic Foundation

dc.contributor.authorStampka, Katja
dc.contributor.authorSarradj, Ennes
dc.date.accessioned2022-12-28T12:04:15Z
dc.date.available2022-12-28T12:04:15Z
dc.date.issued2022-10-05
dc.date.updated2022-11-10T12:53:34Z
dc.description.abstractTo model the vibration and structure-borne sound excitation and propagation of a railway rail, it can be modeled as an infinite beam on an elastic foundation. Existing analytical or numerical models are either formulated in the frequency domain or consider only finite beams in the time domain. Therefore, a time-domain approach for bending wave propagation on an effectively infinite beam on an elastic foundation is proposed. The approach makes use of an implicit finite-difference method that allows for varying properties of the beam and the foundation along the length of the beam. Strategies for an efficient discretization are discussed. The method is validated against existing analytical models for a single layer and two layers, as well as continuous and discrete support. The results show very good agreement, and it can be concluded that the proposed method can be seen as a versatile method for simulating the behavior of a beam on different kinds of elastic foundations.
dc.description.sponsorshipDFG, 414044773, Open Access Publizieren 2021 - 2022 / Technische Universität Berlinen
dc.identifier.eissn2624-599X
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/17894
dc.identifier.urihttps://doi.org/10.14279/depositonce-16683
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.othertime-domain finite-difference method
dc.subject.otherinfinite beam
dc.subject.otherelastic foundation
dc.titleA Time-Domain Finite-Difference Method for Bending Waves on Infinite Beams on an Elastic Foundation
dc.typeArticle
dc.type.versionpublishedVersion
dcterms.bibliographicCitation.doi10.3390/acoustics4040052
dcterms.bibliographicCitation.issue4
dcterms.bibliographicCitation.journaltitleAcoustics
dcterms.bibliographicCitation.originalpublishernameMDPI
dcterms.bibliographicCitation.originalpublisherplaceBasel
dcterms.bibliographicCitation.pageend884
dcterms.bibliographicCitation.pagestart867
dcterms.bibliographicCitation.volume4
dcterms.rightsHolder.referenceCreative-Commons-Lizenz
tub.accessrights.dnbfree
tub.affiliationFak. 5 Verkehrs- und Maschinensysteme::Inst. Strömungsmechanik und Technische Akustik (ISTA)::FG Technische Akustik
tub.publisher.universityorinstitutionTechnische Universität Berlin

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