Active control of structurally radiated sound

Active control of structurally radiated sound

In this paper, active control of radiating sound (using active structural acoustic control) from a vibrating rectangular plate by a steady-state harmonic point force disturbance is experimentally studied. Two piezoceramic actuators are bonded directly to the panel surface to provide control input st...

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Veröffentlicht in:The Journal of the Acoustical Society of America 2000-11, Vol.108 (5_Supplement), p.2478-2478
Hauptverfasser: Hong, Jin Seok, Kim, Heung Seob, Shin, Kihong, Oh, Jae-Eung
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container_issue 5_Supplement
container_start_page 2478
container_title The Journal of the Acoustical Society of America
container_volume 108
creator Hong, Jin Seok
Kim, Heung Seob
Shin, Kihong
Oh, Jae-Eung
description In this paper, active control of radiating sound (using active structural acoustic control) from a vibrating rectangular plate by a steady-state harmonic point force disturbance is experimentally studied. Two piezoceramic actuators are bonded directly to the panel surface to provide control input structure. The sensor consists of two accelerometers mounted on the plate. Estimated radiated sound signals using a vibro-acoustic path transfer function are used as error signals. The vibro-acoustic path transfer function represents a system between accelerometers and microphones. The controller is a 2 by 2 filtered-x LMS algorithm implemented on a TMS320C30 DSP. The results demonstrate good control of sound radiation using the vibro-acoustic path transfer function.
doi_str_mv 10.1121/1.4743140
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title Active control of structurally radiated sound
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