Sensitivity to plant modelling uncertainties in optimal
                feedback control of sound radiation from a panel

Jakob Mørkholt

Sensitivity to plant modelling uncertainties in optimal feedback control of sound radiation from a panel

Jakob Mørkholt

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Optimal feedback control of broadband sound radiation from a rectangular baffled panel has been investigated through computer simulations. Special emphasis has been put on the sensitivity of the optimal feedback control to uncertainties in the modelling of the system under control.A model of a rectangular baffled panel radiating into free field has been constructed. Secondary actuators have been modelled as vibrational inputs acting directly on the panel. A cost function proportional to the averaged radiated sound power and based on knowledge of the modal amplitudes of the panel has been derived in terms of a set of radiation filters modelling the radiation dynamics.Linear quadratic feedback control applied to the panel in order to minimise the radiated sound power has then been simulated. The sensitivity of the model based controller to modelling uncertainties when using feedback from actual and estimated states (via a state observer) has been examined.

Original language	English
Title of host publication	Proceedings of the 1997 International Symposium on Active Control of Sound and Vibration
Place of Publication	Budapest
Publisher	Scientific Society for Optics, Acoustics, Motion Pictures and Theater Technology, Publishing Company of Technical University of Budapest
Publication date	1997
Pages	893-904
Publication status	Published - 1997
Event	Active 97 - Budapest, Hungary Duration: 21 Aug 1997 → 23 Aug 1997 http://oldweb.mit.bme.hu/events/active97/c4papers.html

Conference

Conference	Active 97
Country	Hungary
City	Budapest
Period	21/08/1997 → 23/08/1997
Internet address	http://oldweb.mit.bme.hu/events/active97/c4papers.html

Cite this

Mørkholt, J. (1997). Sensitivity to plant modelling uncertainties in optimal feedback control of sound radiation from a panel. In Proceedings of the 1997 International Symposium on Active Control of Sound and Vibration (pp. 893-904). Scientific Society for Optics, Acoustics, Motion Pictures and Theater Technology, Publishing Company of Technical University of Budapest.

Mørkholt, Jakob. / Sensitivity to plant modelling uncertainties in optimal feedback control of sound radiation from a panel. Proceedings of the 1997 International Symposium on Active Control of Sound and Vibration. Budapest : Scientific Society for Optics, Acoustics, Motion Pictures and Theater Technology, Publishing Company of Technical University of Budapest, 1997. pp. 893-904

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title = "Sensitivity to plant modelling uncertainties in optimal feedback control of sound radiation from a panel",

abstract = "Optimal feedback control of broadband sound radiation from a rectangular baffled panel has been investigated through computer simulations. Special emphasis has been put on the sensitivity of the optimal feedback control to uncertainties in the modelling of the system under control.A model of a rectangular baffled panel radiating into free field has been constructed. Secondary actuators have been modelled as vibrational inputs acting directly on the panel. A cost function proportional to the averaged radiated sound power and based on knowledge of the modal amplitudes of the panel has been derived in terms of a set of radiation filters modelling the radiation dynamics.Linear quadratic feedback control applied to the panel in order to minimise the radiated sound power has then been simulated. The sensitivity of the model based controller to modelling uncertainties when using feedback from actual and estimated states (via a state observer) has been examined.",

author = "Jakob M{\o}rkholt",

year = "1997",

language = "English",

pages = "893--904",

booktitle = "Proceedings of the 1997 International Symposium on Active Control of Sound and Vibration",

publisher = "Scientific Society for Optics, Acoustics, Motion Pictures and Theater Technology, Publishing Company of Technical University of Budapest",

note = "Active 97 ; Conference date: 21-08-1997 Through 23-08-1997",

url = "http://oldweb.mit.bme.hu/events/active97/c4papers.html",

}

Mørkholt, J 1997, Sensitivity to plant modelling uncertainties in optimal feedback control of sound radiation from a panel. in Proceedings of the 1997 International Symposium on Active Control of Sound and Vibration. Scientific Society for Optics, Acoustics, Motion Pictures and Theater Technology, Publishing Company of Technical University of Budapest, Budapest, pp. 893-904, Active 97, Budapest, Hungary, 21/08/1997.

Sensitivity to plant modelling uncertainties in optimal feedback control of sound radiation from a panel. / Mørkholt, Jakob.

Proceedings of the 1997 International Symposium on Active Control of Sound and Vibration. Budapest : Scientific Society for Optics, Acoustics, Motion Pictures and Theater Technology, Publishing Company of Technical University of Budapest, 1997. p. 893-904.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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M3 - Article in proceedings

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BT - Proceedings of the 1997 International Symposium on Active Control of Sound and Vibration

PB - Scientific Society for Optics, Acoustics, Motion Pictures and Theater Technology, Publishing Company of Technical University of Budapest

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Mørkholt J. Sensitivity to plant modelling uncertainties in optimal feedback control of sound radiation from a panel. In Proceedings of the 1997 International Symposium on Active Control of Sound and Vibration. Budapest: Scientific Society for Optics, Acoustics, Motion Pictures and Theater Technology, Publishing Company of Technical University of Budapest. 1997. p. 893-904