Active Control of Sound Radiation Into an Enclosure Using Different Number of Actuators

Huai Feng Cui; Nan Chen

doi:10.4028/www.scientific.net/AMM.313-314.1299

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 313-314Active Control of Sound Radiation Into an...

Active Control of Sound Radiation Into an Enclosure Using Different Number of Actuators

Abstract:

This paper presents an investigation into the active control of structural-acoustic coupled system of a rectangular enclosure involving two simply supported flexible plates. One of the two plates is driven by a point force. The locations of actuators are determined by considering contour plot of the optimal potential energy. The control mechanisms for this enclosure are analyzed when one, two and three actuators are applied on one of the plates. Results obtained demonstrate that the control mechanisms for Panel a are always modal restructuring; those for Panel b are dominantly modal suppression when a different number of actuators is applied to reduce the noise level.

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Periodical:

Applied Mechanics and Materials (Volumes 313-314)

Pages:

1299-1303

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.313-314.1299

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Online since:

March 2013

Authors:

Huai Feng Cui, Nan Chen

Keywords:

Active Control, Control Mechanism, Enclosure

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References

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