Parametric Investigation of a Rail Damper Design Based on a Lab-Scaled Model

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dc.contributor.authorKuchak, Alireza Jahan Tigh
dc.contributor.authorMarinković, Dragan
dc.contributor.authorZehn, Manfred
dc.date.accessioned2020-10-08T06:24:45Z
dc.date.available2020-10-08T06:24:45Z
dc.date.issued2020-04-27
dc.description.abstractBackground: Track noise is one of the main issues in the development of railway networks. It is well-known that rail dampers, as a cost-effective, passive means of vibration reduction, do reduce the noise, still neither the mechanism behind their action, nor the influential parameters are well understood. Purpose: The main purpose of this work is to investigate the efficiency and influential parameters of a rail damper design based on a lab-scaled model of the rail-damper system and an accurate FE model. Method: Based on experimental and numerical modal analyses and the Modal Assurance Criteria (MAC) analysis, the FE model updating technique was applied in order to develop a highly accurate FE model of the rail-damper system for the investigated frequency range. In a further step, the developed FE model is used in a parametric analysis to assess various damper parameters with respect to the efficiency of damping rail vibrations and, therewith, radiated noise. Results: The investigation performed based on FE simulations demonstrates how different material and geometric parameters of the damper influence the mobility decay rate of rail vertical vibrations. The investigated parameters are the thickness of still and rubber layers, stiffness and damping loss factor of rubber layers and pre-force in the bolts that press the layers together. Conclusions: It is shown that the FE model updating technique was capable of producing highly accurate FE model despite the challenging properties of the real structure and that a combination of the lab-scaled model and the FE model represents a cost-effective approach.en
dc.identifier.eissn2523-3939
dc.identifier.issn2523-3920
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/11741
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-10632
dc.language.isoenen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.ddc621 Angewandte Physikde
dc.subject.otherrail damperen
dc.subject.otherFE analysisen
dc.subject.otherdecay rateen
dc.subject.otherModal Assurance Criterionen
dc.subject.otherMACen
dc.subject.otherEigenfrequenciesen
dc.subject.otherEigenvectorsen
dc.titleParametric Investigation of a Rail Damper Design Based on a Lab-Scaled Modelen
dc.typeArticleen
dc.type.versionacceptedVersionen
dcterms.bibliographicCitation.doi10.1007/s42417-020-00209-2en
dcterms.bibliographicCitation.journaltitleJournal of Vibration Engineering & Technologiesen
dcterms.bibliographicCitation.originalpublishernameSpringeren
dcterms.bibliographicCitation.originalpublisherplaceBerlin ; Heidelberg [u.a.]en
tub.accessrights.dnbdomain*
tub.affiliationFak. 5 Verkehrs- und Maschinensysteme::Inst. Mechanik::FG Strukturmechanik und Strukturberechnungde
tub.affiliation.facultyFak. 5 Verkehrs- und Maschinensystemede
tub.affiliation.groupFG Strukturmechanik und Strukturberechnungde
tub.affiliation.instituteInst. Mechanikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen

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