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dc.contributor.authorAiraksinen, Tuomas
dc.contributor.authorToivanen, Jari
dc.date.accessioned2012-09-27T15:06:43Z
dc.date.available2012-09-27T15:06:43Z
dc.date.issued2012
dc.identifier.citationAiraksinen, T., & Toivanen, J. (2012). Quadratic least-squares formulation for a local active noise control with stochastic domain and noise source. In J. Eberhardsteiner, H. Böhm, & F. Rammerstorfer (Eds.), <em>Proceedings of the 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012)</em>. Wien: Vienna University of Technology.fi
dc.identifier.otherTUTKAID_52098
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/38664
dc.description.abstractA local active noise control method that uses stochastic numerical acoustical modeling is introduced. The frequency domain acoustical simulations are performed by a sequence solutions to Helmholtz equations approximated by FEM. The proposed ANC method maps microphone measurements linearly to the output signals of antinoise actuators. The matrix defining the linear mapping is optimized for each frequency to minimize expected value of the noise. The paper concentrates on defining the quadratic least-squares optimization problem for the minimization of the sound pressure field in the silet region. The formulation leads to a robust and accurate noise control in stochastic domains that has a stochastic noise source. The method is demonstrated numerically by an experiment in a car cabin, and significant noise reduction is demonstrated at lower frequencies.fi
dc.language.isoeng
dc.publisherVienna University of Technology
dc.relation.ispartofProceedings of the 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012). Edited by J. Eberhardsteiner, H. Böhm, & F. Rammerstorfer. ISBN 978-3-9502481-9-7. (CD-ROM)
dc.subject.otherlocal sound controlen
dc.subject.otherstochastic domainen
dc.subject.otherHelmholtz equationen
dc.subject.otherfinite element methoden
dc.subject.otherpassenger caren
dc.subject.otherquadratic optimizationen
dc.titleQuadratic least-squares formulation for a local active noise control with stochastic domain and noise source
dc.typeConference paper
dc.identifier.urnURN:NBN:fi:jyu-201209202458
dc.contributor.laitosTietotekniikan laitosfi
dc.contributor.laitosDepartment of Mathematical Information Technologyen
dc.contributor.oppiaineTietotekniikkafi
jyx.tutka.ksnameProceedings of the 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012)
dc.type.urihttp://purl.org/eprint/type/ConferencePaper
dc.date.updated2012-09-20T03:30:08Z
dc.type.coarconference paper
dc.description.reviewstatusnonPeerReviewed
dc.type.versionpublishedVersion
dc.rights.accesslevelopenAccessfi


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