TY - GEN
T1 - Spatial control of far-field structural sound radiation using structural sensors for broadband applications
AU - Halim, D.
AU - Cazzolato, B. S.
PY - 2006
Y1 - 2006
N2 - The focus of the paper is to control the far-field sound radiation from an arbitrary planar structure using multiple structural sensors, particularly for broadband applications. A number of structural velocity sensors are distributed over the structure for sensing the sound radiation at a particular far-field region for control purposes. Spatial control of structural sound radiation is achieved by constructing a frequency-independent spatial filter that reflects the spatially- weighted sound radiation energy. Thus, the signal produced by the spatial filter can be used as an error signal to be minimised by standard active control methods. A numerical case study on the sound radiation of a flat panel structure is performed to investigate the control performance using the developed frequency-independent spatial filter.
AB - The focus of the paper is to control the far-field sound radiation from an arbitrary planar structure using multiple structural sensors, particularly for broadband applications. A number of structural velocity sensors are distributed over the structure for sensing the sound radiation at a particular far-field region for control purposes. Spatial control of structural sound radiation is achieved by constructing a frequency-independent spatial filter that reflects the spatially- weighted sound radiation energy. Thus, the signal produced by the spatial filter can be used as an error signal to be minimised by standard active control methods. A numerical case study on the sound radiation of a flat panel structure is performed to investigate the control performance using the developed frequency-independent spatial filter.
UR - http://www.scopus.com/inward/record.url?scp=84880159640&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84880159640
SN - 9781627480017
T3 - 1st Australasian Acoustical Societies' Conference 2006, ACOUSTICS 2006: Noise of Progress
SP - 25
EP - 30
BT - 1st Australasian Acoustical Societies' Conference 2006, ACOUSTICS 2006
T2 - 1st Australasian Acoustical Societies' Conference 2006: Noise of Progress, ACOUSTICS 2006
Y2 - 20 November 2006 through 22 November 2006
ER -