Practical active control of cavity noise using loop shaping: Two case studies
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.apacoust.2016.12.004 http://hdl.handle.net/11449/174194 |
Resumo: | A simple loop shaping technique is applied to design an optimal, robust feedback controller to reduce the interior noise of an acoustic cavity. It is a data-based technique that uses the measured plant response to tune the parameters of a fixed-structure controller in a graphical way. The two cases studied are narrowband noise control in a small cavity and broadband noise control in a long duct. Each control system consists of a microphone, a loudspeaker, and a controller connecting the two transducers that are further collocated. The fixed-structure of each controller should be chosen ahead of loop shaping and is determined in this paper solely based on the Nyquist plot of each plant measured. It turns out that a single band (high) pass filter of second order is suitable for the narrowband (broadband) noise control case considered. It is finally demonstrated with experiments that the technique is practical and a second order filter can be effectively used for active control of cavity noise in a single narrow or broad frequency band. |
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Repositório Institucional da UNESP |
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Practical active control of cavity noise using loop shaping: Two case studiesLoop shapingNoise controlRobust controlSecond order filters, optimal controlA simple loop shaping technique is applied to design an optimal, robust feedback controller to reduce the interior noise of an acoustic cavity. It is a data-based technique that uses the measured plant response to tune the parameters of a fixed-structure controller in a graphical way. The two cases studied are narrowband noise control in a small cavity and broadband noise control in a long duct. Each control system consists of a microphone, a loudspeaker, and a controller connecting the two transducers that are further collocated. The fixed-structure of each controller should be chosen ahead of loop shaping and is determined in this paper solely based on the Nyquist plot of each plant measured. It turns out that a single band (high) pass filter of second order is suitable for the narrowband (broadband) noise control case considered. It is finally demonstrated with experiments that the technique is practical and a second order filter can be effectively used for active control of cavity noise in a single narrow or broad frequency band.Department of Mechanical Engineering UNESP—Sao Paulo State University, Ilha Solteira 15385-000Department of Mechanical Engineering UNESP—Sao Paulo State University, Ilha Solteira 15385-000Universidade Estadual Paulista (Unesp)Kim, Sang-Myeong [UNESP]Pereira, Joao A. [UNESP]Lopes, Vicente [UNESP]Turra, Antonio E. [UNESP]Brennan, Michael J. [UNESP]2018-12-11T17:09:46Z2018-12-11T17:09:46Z2017-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article65-73application/pdfhttp://dx.doi.org/10.1016/j.apacoust.2016.12.004Applied Acoustics, v. 121, p. 65-73.1872-910X0003-682Xhttp://hdl.handle.net/11449/17419410.1016/j.apacoust.2016.12.0042-s2.0-850121046522-s2.0-85012104652.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied Acousticsinfo:eu-repo/semantics/openAccess2024-07-04T20:06:01Zoai:repositorio.unesp.br:11449/174194Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:48:12.589844Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Practical active control of cavity noise using loop shaping: Two case studies |
title |
Practical active control of cavity noise using loop shaping: Two case studies |
spellingShingle |
Practical active control of cavity noise using loop shaping: Two case studies Kim, Sang-Myeong [UNESP] Loop shaping Noise control Robust control Second order filters, optimal control |
title_short |
Practical active control of cavity noise using loop shaping: Two case studies |
title_full |
Practical active control of cavity noise using loop shaping: Two case studies |
title_fullStr |
Practical active control of cavity noise using loop shaping: Two case studies |
title_full_unstemmed |
Practical active control of cavity noise using loop shaping: Two case studies |
title_sort |
Practical active control of cavity noise using loop shaping: Two case studies |
author |
Kim, Sang-Myeong [UNESP] |
author_facet |
Kim, Sang-Myeong [UNESP] Pereira, Joao A. [UNESP] Lopes, Vicente [UNESP] Turra, Antonio E. [UNESP] Brennan, Michael J. [UNESP] |
author_role |
author |
author2 |
Pereira, Joao A. [UNESP] Lopes, Vicente [UNESP] Turra, Antonio E. [UNESP] Brennan, Michael J. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Kim, Sang-Myeong [UNESP] Pereira, Joao A. [UNESP] Lopes, Vicente [UNESP] Turra, Antonio E. [UNESP] Brennan, Michael J. [UNESP] |
dc.subject.por.fl_str_mv |
Loop shaping Noise control Robust control Second order filters, optimal control |
topic |
Loop shaping Noise control Robust control Second order filters, optimal control |
description |
A simple loop shaping technique is applied to design an optimal, robust feedback controller to reduce the interior noise of an acoustic cavity. It is a data-based technique that uses the measured plant response to tune the parameters of a fixed-structure controller in a graphical way. The two cases studied are narrowband noise control in a small cavity and broadband noise control in a long duct. Each control system consists of a microphone, a loudspeaker, and a controller connecting the two transducers that are further collocated. The fixed-structure of each controller should be chosen ahead of loop shaping and is determined in this paper solely based on the Nyquist plot of each plant measured. It turns out that a single band (high) pass filter of second order is suitable for the narrowband (broadband) noise control case considered. It is finally demonstrated with experiments that the technique is practical and a second order filter can be effectively used for active control of cavity noise in a single narrow or broad frequency band. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-01 2018-12-11T17:09:46Z 2018-12-11T17:09:46Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.apacoust.2016.12.004 Applied Acoustics, v. 121, p. 65-73. 1872-910X 0003-682X http://hdl.handle.net/11449/174194 10.1016/j.apacoust.2016.12.004 2-s2.0-85012104652 2-s2.0-85012104652.pdf |
url |
http://dx.doi.org/10.1016/j.apacoust.2016.12.004 http://hdl.handle.net/11449/174194 |
identifier_str_mv |
Applied Acoustics, v. 121, p. 65-73. 1872-910X 0003-682X 10.1016/j.apacoust.2016.12.004 2-s2.0-85012104652 2-s2.0-85012104652.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Applied Acoustics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
65-73 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128420435984384 |