A computational approach to electromechanical coupling by eddy currents in vibrating beams

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dc.contributor.authorBrun Martínez, Mikel
dc.contributor.authorCortés Martínez, Fernando
dc.contributor.authorElejabarrieta Olabarri, María Jesús
dc.date.accessioned2026-08-04T06:57:35Z
dc.date.available2026-08-04T06:57:35Z
dc.date.issued2026-08
dc.date.updated2026-08-04T06:57:35Z
dc.description.abstractThe dynamic behaviour of conductive beams subjected to magnetic fields involves complex interactions between mechanical motion and induced electromagnetic forces. This study introduces a coupled computational approach that captures the mechanisms of eddy current damping and their role in vibration attenuation and bending-torsion coupling of thin, non-magnetic conductive beams. The structural response is modelled using finite elements that include bending and torsional degrees of freedom, while the electromagnetic effects generated by motional induction are evaluated through a finite difference formulation. The resulting velocity-dependent electromagnetic forces are integrated directly into the dynamic equations of motion, resulting in a symmetric but non-proportional damping matrix governing both energy dissipation and cross-coupling between vibration modes. The proposed formulation is further validated against experimental data, confirming its ability to accurately reproduce the observed dynamic response. Frequency- and time-domain simulations reveal that increasing magnetic field magnitude enhances vibration attenuation, and that bending-torsion coupling arises only when magnetic fields are oriented in multiple directions. The proposed model provides a systematic means to investigate electromagnetic–mechanical coupling mechanisms in beam-like structures and to predict their dynamic performance under magnetic fields, offering new insights and computational tools for non-contact vibration control in advanced mechanical systems.en
dc.description.sponsorshipThis study has received financial support from the Department of Education of the Basque Government through the Research Group program IT1507-22 and from the Spanish Ministry of Science, Innovation and Universities through the project PID2024-158168OB-I00en
dc.identifier.citationBrun, M., Cortés, F., & Elejabarrieta, M. J. (2026). A computational approach to electromechanical coupling by eddy currents in vibrating beams. Computers and Structures, 329. https://doi.org/10.1016/J.COMPSTRUC.2026.108290
dc.identifier.doi10.1016/J.COMPSTRUC.2026.108290
dc.identifier.issn0045-7949
dc.identifier.urihttps://hdl.handle.net/20.500.14454/6456
dc.language.isoeng
dc.publisherElsevier Ltd
dc.rights© 2026 The Author(s)
dc.subject.otherBending-torsion coupling
dc.subject.otherEddy current damping
dc.subject.otherElectromagnetic-mechanical coupling
dc.subject.otherMultiphysics dynamics
dc.titleA computational approach to electromechanical coupling by eddy currents in vibrating beamsen
dc.typejournal article
dcterms.accessRightsopen access
oaire.citation.titleComputers and Structures
oaire.citation.volume329
oaire.licenseConditionhttps://creativecommons.org/licenses/by-nc/4.0/
oaire.versionVoR
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