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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.

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), https://doi.org/10.1121/1.3531941

Journal Article Type Article
Acceptance Date Dec 3, 2010
Publication Date Mar 1, 2011
Deposit Date Mar 13, 2018
Publicly Available Date Mar 13, 2018
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
DOI https://doi.org/10.1121/1.3531941
Public URL http://eprints.nottingham.ac.uk/id/eprint/50244
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.nottingham.ac.uk/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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