Development of dynamic loudspeakers modified as incident pressure sources for noise reduction in a double panel structure

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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Abstract

This paper presents a modified loudspeaker source for decentralized feedback cavity control in a double panel structure to reduce the noise transmission. The double panel structure con-sists of two panels with air in between and offers the advantages of low weight, low sound transmission at high frequencies, and thermal insulation. The main issues of the double panel structure are the resonance of the cavity and the high noise transmission at low frequencies. Many papers have discussed applying active structural acoustic control to the panels or active noise control to the cavity. In our previous study, we considered the resonance of the panels and the cavity simultaneously and numerically compared various decentralized structural and cavity feedback control strategies basing on identical control stability margins. Cavity control by loudspeakers, which are modified to operate as incident pressure sources, was found to-provide the largest noise reduction. The incident pressure source loudspeaker can be realized by using a dynamic loudspeaker, a microphone, and a velocity sensor with a feedforward controller. In this paper, experimental results of a one dimensional realization with a feed-forward controller are presented.
Original languageEnglish
Title of host publicationProceedings of the 20th International Congress on Sound and Vibration
EditorsMalcolm J. Crocker, Marek Pawelczyk, Boonchoat Paosawatyanyong
PublisherInternational Institute of Acoustics and Vibration (IIAV)
Pages1-7
Number of pages7
ISBN (Print)978-616-551-682-2
Publication statusPublished - 7 Jul 2013
Event20th International Congress on Sound and Vibration, ICSV 2013 - Bangkok, Thailand
Duration: 7 Jul 201311 Jul 2013
Conference number: 20
https://www.iiav.org/icsv20/

Publication series

Name
PublisherInternational Institute of Acoustics and Vibration, IIAV
ISSN (Print)2329-3675

Conference

Conference20th International Congress on Sound and Vibration, ICSV 2013
Abbreviated titleICSV
CountryThailand
CityBangkok
Period7/07/1311/07/13
Internet address

Fingerprint

loudspeakers
noise reduction
cavities
controllers
control stability
thermal insulation
low weight
sound transmission
microphones
feedback control
margins
low frequencies
acoustics
sensors
air

Keywords

  • EWI-23698
  • IR-87241
  • METIS-302540

Cite this

Ho, J., & Berkhoff, A. P. (2013). Development of dynamic loudspeakers modified as incident pressure sources for noise reduction in a double panel structure. In M. J. Crocker, M. Pawelczyk, & B. Paosawatyanyong (Eds.), Proceedings of the 20th International Congress on Sound and Vibration (pp. 1-7). International Institute of Acoustics and Vibration (IIAV).
Ho, J. ; Berkhoff, Arthur P. / Development of dynamic loudspeakers modified as incident pressure sources for noise reduction in a double panel structure. Proceedings of the 20th International Congress on Sound and Vibration. editor / Malcolm J. Crocker ; Marek Pawelczyk ; Boonchoat Paosawatyanyong. International Institute of Acoustics and Vibration (IIAV), 2013. pp. 1-7
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title = "Development of dynamic loudspeakers modified as incident pressure sources for noise reduction in a double panel structure",
abstract = "This paper presents a modified loudspeaker source for decentralized feedback cavity control in a double panel structure to reduce the noise transmission. The double panel structure con-sists of two panels with air in between and offers the advantages of low weight, low sound transmission at high frequencies, and thermal insulation. The main issues of the double panel structure are the resonance of the cavity and the high noise transmission at low frequencies. Many papers have discussed applying active structural acoustic control to the panels or active noise control to the cavity. In our previous study, we considered the resonance of the panels and the cavity simultaneously and numerically compared various decentralized structural and cavity feedback control strategies basing on identical control stability margins. Cavity control by loudspeakers, which are modified to operate as incident pressure sources, was found to-provide the largest noise reduction. The incident pressure source loudspeaker can be realized by using a dynamic loudspeaker, a microphone, and a velocity sensor with a feedforward controller. In this paper, experimental results of a one dimensional realization with a feed-forward controller are presented.",
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Ho, J & Berkhoff, AP 2013, Development of dynamic loudspeakers modified as incident pressure sources for noise reduction in a double panel structure. in MJ Crocker, M Pawelczyk & B Paosawatyanyong (eds), Proceedings of the 20th International Congress on Sound and Vibration. International Institute of Acoustics and Vibration (IIAV), pp. 1-7, 20th International Congress on Sound and Vibration, ICSV 2013, Bangkok, Thailand, 7/07/13.

Development of dynamic loudspeakers modified as incident pressure sources for noise reduction in a double panel structure. / Ho, J.; Berkhoff, Arthur P.

Proceedings of the 20th International Congress on Sound and Vibration. ed. / Malcolm J. Crocker; Marek Pawelczyk; Boonchoat Paosawatyanyong. International Institute of Acoustics and Vibration (IIAV), 2013. p. 1-7.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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T1 - Development of dynamic loudspeakers modified as incident pressure sources for noise reduction in a double panel structure

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AU - Berkhoff, Arthur P.

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PY - 2013/7/7

Y1 - 2013/7/7

N2 - This paper presents a modified loudspeaker source for decentralized feedback cavity control in a double panel structure to reduce the noise transmission. The double panel structure con-sists of two panels with air in between and offers the advantages of low weight, low sound transmission at high frequencies, and thermal insulation. The main issues of the double panel structure are the resonance of the cavity and the high noise transmission at low frequencies. Many papers have discussed applying active structural acoustic control to the panels or active noise control to the cavity. In our previous study, we considered the resonance of the panels and the cavity simultaneously and numerically compared various decentralized structural and cavity feedback control strategies basing on identical control stability margins. Cavity control by loudspeakers, which are modified to operate as incident pressure sources, was found to-provide the largest noise reduction. The incident pressure source loudspeaker can be realized by using a dynamic loudspeaker, a microphone, and a velocity sensor with a feedforward controller. In this paper, experimental results of a one dimensional realization with a feed-forward controller are presented.

AB - This paper presents a modified loudspeaker source for decentralized feedback cavity control in a double panel structure to reduce the noise transmission. The double panel structure con-sists of two panels with air in between and offers the advantages of low weight, low sound transmission at high frequencies, and thermal insulation. The main issues of the double panel structure are the resonance of the cavity and the high noise transmission at low frequencies. Many papers have discussed applying active structural acoustic control to the panels or active noise control to the cavity. In our previous study, we considered the resonance of the panels and the cavity simultaneously and numerically compared various decentralized structural and cavity feedback control strategies basing on identical control stability margins. Cavity control by loudspeakers, which are modified to operate as incident pressure sources, was found to-provide the largest noise reduction. The incident pressure source loudspeaker can be realized by using a dynamic loudspeaker, a microphone, and a velocity sensor with a feedforward controller. In this paper, experimental results of a one dimensional realization with a feed-forward controller are presented.

KW - EWI-23698

KW - IR-87241

KW - METIS-302540

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BT - Proceedings of the 20th International Congress on Sound and Vibration

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Ho J, Berkhoff AP. Development of dynamic loudspeakers modified as incident pressure sources for noise reduction in a double panel structure. In Crocker MJ, Pawelczyk M, Paosawatyanyong B, editors, Proceedings of the 20th International Congress on Sound and Vibration. International Institute of Acoustics and Vibration (IIAV). 2013. p. 1-7