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dc.contributor.authorSeoane, Marcos
dc.contributor.authorLedger, Paul D.
dc.contributor.authorGil Ruiz, Antonio Javier
dc.contributor.authorZlotnik, Sergio
dc.contributor.authorMallett, Mike
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2020-04-03T07:47:18Z
dc.date.issued2019
dc.identifier.citationSeoane, M. [et al.]. A high order finite element formulation for the simulation of 3D Magneto-Mechanical problems with application to MRI scanners. A: Conference on the Computation of Electromagnetic Fields. "Proceedings 22nd International Conference on the Computation of Electromagnetic Fields". 2019, p. 1-4.
dc.identifier.urihttp://hdl.handle.net/2117/182986
dc.description.abstractTransient magnetic fields generated by the gradient coils in MRI scanners induce eddy currents in their conducting components, which lead to vibrations, imaging artefacts, noise and the dissipation of heat. Heat dissipation can boil off the helium used to cool the super conducting magnets and, if left unchecked, will lead to a magnet quench. Understanding the mechanisms involved in the generation of these vibrations, and the heat being deposited in the cryostat, are key for a successful MRI scanner design. This requires the solution of the coupled physics magneto-mechanical problem, which will be addressed in this work. For the accurate simulation of this problem, a Lagrangian approach is used, which leads to a staggered scheme. This is discretised by high order finite elements leading to accurate solution. We demonstrate the success of our scheme by applying to realistic MRI scanner configurations and increase the efficiency of our technique by using a reduced order model based on the proper orthogonal decomposition. New symmetry conditions and an approach to map the current source to the space of divergence free functions are added as novel contributions.
dc.format.extent4 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Investigació operativa::Simulació
dc.subject.lcshAutomatic control
dc.subject.lcshStatistical mechanics
dc.subject.otherElectromagnetic coupling
dc.subject.otherEddy currents
dc.subject.otherFinite element analysis
dc.subject.otherNuclear magnetic resonance
dc.subject.otherVibrations
dc.subject.otherReduced order systems
dc.titleA high order finite element formulation for the simulation of 3D Magneto-Mechanical problems with application to MRI scanners
dc.typeConference report
dc.subject.lemacControl automàtic
dc.subject.lemacMecànica estadística
dc.contributor.groupUniversitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria
dc.description.peerreviewedPeer Reviewed
dc.subject.amsClassificació AMS::70 Mechanics of particles and systems::70Q05 Control of mechanical systems
dc.subject.amsClassificació AMS::82 Statistical mechanics, structure of matter::82D Applications to specific types of physical systems
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac26619799
dc.description.versionPostprint (author's final draft)
dc.date.lift10000-01-01
local.citation.authorSeoane, M.; Ledger, P.; Gil Ruiz, Antonio Javier; Zlotnik, S.; Mallett, M.
local.citation.contributorConference on the Computation of Electromagnetic Fields
local.citation.publicationNameProceedings 22nd International Conference on the Computation of Electromagnetic Fields
local.citation.startingPage1
local.citation.endingPage4


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