Analysis of the acoustical behavior of cavities using impedance functions.

dc.contributor.authorGuimarães, Gustavo Paulinelli
dc.contributor.authorPirk, Rogério
dc.contributor.authorSouto, Carlos D'Andrade
dc.contributor.authorGóes, Luiz Carlos Sandoval
dc.date.accessioned2017-07-24T15:05:18Z
dc.date.available2017-07-24T15:05:18Z
dc.date.issued2016
dc.description.abstractThe acoustic design of cavities is an important task in a variety of engineering applications, from automotive or aerospace industries to equipment coating designs. In this work, the acoustic impedance functions (a frequency domain model) were calculated using analytical, numerical, and experimental methods. Those different approaches were presented in a unified manner in order to allow comparisons among them. The relationship of the impedance function and a classical frequency response function (FRF) was also established. A circular duct of rigid walls was assumed with different boundary conditions as closed end, as well as opened and absorbed extremities. Three duct configurations were implemented in order to compare analytical, numerical, and experimental results. Finally, it could be possible to evaluate some aspects that are characteristic of a large range of acoustic systems applications as the existence of complex modes and frequency-dependent behavior of absorption material. This study aims the usage of the impedance functions to analyze the acoustic behavior of cavities, as well as to compose the background in order to develop, in the future, an acoustic modeling process using impedance functions.pt_BR
dc.identifier.citationGUIMARÃES, G. P. et al. Analysis of the acoustical behavior of cavities using impedance functions. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 38, n. 4, p. 1103-1111, abr. 2016. Disponível em: <https://link.springer.com/article/10.1007/s40430-015-0428-z>. Acesso em: 24 jul. 2017.pt_BR
dc.identifier.doihttps://doi.org/10.1007/s40430-015-0428-z
dc.identifier.issn1806-3691
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/8316
dc.identifier.uri2https://link.springer.com/article/10.1007/s40430-015-0428-zpt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectAcousticspt_BR
dc.subjectAcoustic cavitypt_BR
dc.subjectExperimental modal analysispt_BR
dc.subjectImpedance functionpt_BR
dc.titleAnalysis of the acoustical behavior of cavities using impedance functions.pt_BR
dc.typeArtigo publicado em periodicopt_BR

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