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 |
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| 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/Territory | Hungary |
| City | Budapest |
| Period | 21/08/1997 → 23/08/1997 |
| Internet address |