Active control of radiated duct noise with an insufficient number of sensors and actuators

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If one wants to control the noise from a duct, then one must have a sufficient number of sensors and actuators so that the control system is observable and controllable. The number of sensors and actuators for controlling radiating noise from a duct has to be incorporated with the number of modes that one wants to control. These considerations motivated the present study which considers a control system that has fewer sensors and actuators than the number of propagating modes in a duct. The control performance and robust reliability of such a kind of control system are investigated, theoretically and numerically. The likelihood of success in reducing the radiation power of a duct is verified by theoretical analysis and numerical simulations. In addition, the control performance of the control system is verified by experiments. (C) 1999 Academic Press.
Publisher
ACADEMIC PRESS LTD
Issue Date
1999-04
Language
ENG
Article Type
Article
Keywords

FINITE

Citation

JOURNAL OF SOUND AND VIBRATION, v.221, no.3, pp.351 - 369

ISSN
0022-460X
URI
http://hdl.handle.net/10203/2526
Appears in Collection
ME-Journal Papers(저널논문)

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