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Virtual sensors for active noise control in acoustic–structural coupled enclosures using structural sensing: robust virtual sensor design

Halim, Dunant; Cheng, Li; Su, Zhongqing

Authors

Dunant Halim

Li Cheng

Zhongqing Su

Abstract

The work was aimed to develop a robust virtual sensing design methodology for sensing and active control applications of vibro-acoustic systems. The proposed virtual sensor was designed to estimate a broadband acoustic interior sound pressure using structural sensors, with robustness against certain dynamic uncertainties occurring in an acoustic–structural coupled enclosure. A convex combination of Kalman sub-filters was used during the design, accommodating different sets of perturbed dynamic model of the vibro-acoustic enclosure. A minimax optimization problem was set up to determine an optimal convex combination of Kalman sub-filters, ensuring an optimal worst-case vir- tual sensing performance. The virtual sensing and active noise control performance was numerically investigated on a rectangular panel-cavity system. It was demonstrated that the proposed virtual sen- sor could accurately estimate the interior sound pressure, particularly the one dominated by cavity- controlled modes, by using a structural sensor. With such a virtual sensing technique, effective active noise control performance was also obtained even for the worst-case dynamics.

Journal Article Type Article
Publication Date Mar 1, 2011
Journal The Journal of the Acoustical Society of America
Electronic ISSN 0001-4966
Publisher Acoustical Society of America
Peer Reviewed Peer Reviewed
Volume 129
Issue 3
Institution Citation Halim, D., Cheng, L., & Su, Z. (2011). Virtual sensors for active noise control in acoustic–structural coupled enclosures using structural sensing: robust virtual sensor design. Journal of the Acoustical Society of America, 129(3), doi:10.1121/1.3531941
DOI https://doi.org/10.1121/1.3531941
Publisher URL https://doi.org/10.1121/1.3531941
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information © The Acoustical Society of America.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf



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