Comparisons between various cavity and panel noise reduction control in double-panel structures

J. Ho, J. Kalverboer, Arthur P. Berkhoff

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


This paper presents comparisons between various panel and cavity resonance control methods to reduce the transmitted sound in a double-panel structure. The double-panel, which consists of two panels with air in the gap, has the advantages of low weight and effective transmission-loss at high frequency. Therefore, it is widely applied in many areas such as aerospace. Nevertheless, the resonance of the cavity and the poor transmission-loss at low frequency limit its noise control performance. Applying active control forces on the panels or utilizing loudspeakers in the cavity to reduce the noise problem have been discussed in many papers. In this paper, an acoustic-structure coupled model is used to investigate and to compare the transmitted sound reduction of various cavity and panel resonance control methods. The control performance comparison is based on the same stability control margins. Moreover, an adaptive control method is used in the system to further improve the control performance. Piezoelectric actuators on the radiating panel in the adaptive feedforward control combines with the loudspeakers with pressure source in the feedback control is found to be the most effective combination.
Original languageUndefined
Title of host publicationProceedings of THE ACOUSTICS 2012 HONG KONG
Place of PublicationHong Kong
PublisherThe Hong Kong Institute of Acoustics
Number of pages6
ISBN (Print)not assigned
Publication statusPublished - 13 May 2012
EventTHE ACOUSTICS 2012 HONG KONG, Hong Kong - Hong Kong
Duration: 13 May 201213 May 2012

Publication series

PublisherThe Hong Kong Institute of Acoustics


ConferenceTHE ACOUSTICS 2012 HONG KONG, Hong Kong


  • EWI-22532
  • Double-panel
  • METIS-296143
  • Cavity control
  • IR-82167
  • Panel control

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