Modeling and Dynamic Analysis of an Electrical Helmholtz Resonator for Active Control of Resonant Noise

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dc.contributor.authorKim, Sang-Myeong [UNESP]
dc.contributor.authorPereira, Joao A. [UNESP]
dc.contributor.authorTurra, Antonio E. [UNESP]
dc.contributor.authorCho, Jun-Ho
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionWoosong College
dc.date.accessioned2018-12-11T16:48:23Z
dc.date.available2018-12-11T16:48:23Z
dc.date.issued2017-10-01
dc.description.abstractThis paper describes a theoretical and experimental investigation into an electrical Helmholtz resonator (EHR): that is, an active noise control (ANC) loudspeaker used in conjunction with a microphone and a feedback controller for suppressing resonant noise in an acoustic cavity. The microphone is collocated with the loudspeaker and a band pass filter of second-order is used as the control filter inside the controller. The EHR is configured as such in order to suppress an acoustic mode that is within the volume velocity drive frequency range of the loudspeaker used. The concepts of impedance and passivity are used to develop the mathematical model as well as to study its dynamics. From these, it is theoretically shown that the EHR for single-mode suppression is an extremely low-impedance acoustic damping device that electrically realizes the pressure neutralization mechanism of a conventional Helmholtz resonator (HR). Experimental work is also presented, in which an EHR is constructed to suppress the Helmholtz mode of an acoustic cavity at about 40 Hz by more than 40 dB, to justify the mathematical model and also to verify the dynamic control mechanism.en
dc.description.affiliationMechanical Engineering Department UNESP
dc.description.affiliationDepartment of Railway Transportation Woosong College, 59, Baekryong-ro
dc.description.affiliationUnespMechanical Engineering Department UNESP
dc.identifierhttp://dx.doi.org/10.1115/1.4036722
dc.identifier.citationJournal of Vibration and Acoustics, Transactions of the ASME, v. 139, n. 5, 2017.
dc.identifier.doi10.1115/1.4036722
dc.identifier.issn1528-8927
dc.identifier.issn1048-9002
dc.identifier.scopus2-s2.0-85025427761
dc.identifier.urihttp://hdl.handle.net/11449/169950
dc.language.isoeng
dc.relation.ispartofJournal of Vibration and Acoustics, Transactions of the ASME
dc.relation.ispartofsjr0,910
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectHelmholtz mode
dc.subjectHelmholtz resonator
dc.subjectimpedance
dc.subjectloudspeaker
dc.subjectnoise control
dc.subjectpassivity
dc.titleModeling and Dynamic Analysis of an Electrical Helmholtz Resonator for Active Control of Resonant Noiseen
dc.typeArtigo

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