Beam steering of sound from flat panels using spatially-averaged objective functions

D. Halim; B. S. Cazzolato

Beam steering of sound from flat panels using spatially-averaged objective functions

D. Halim, B. S. Cazzolato

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

The paper proposes a beam steering method for regulating sound radiation from flat panel structures using multiple structural velocity sensors. Velocity measurements from the structural sensors are used to estimate the velocity profile of the panel, which is then used to estimate the acoustic beam pattern of radiated sound. An objective function is defined for active beam steering purposes, representing the spatially-averaged error between the reference beam pattern and the estimated beam pattern of sound radiation in the far-field. Numerical studies on a rectangular flat panel are used to demonstrate the ability of the proposed method to regulate a beam pattern of sound for steering a beam to different directions in the far-field. It is demonstrated that the proposed method can modify the beam pattern of tonal sound radiation by modifying the vibration velocity profile of the panel.

Original language	English
Title of host publication	Annual Conference of the Australian Acoustical Society 2005, Acoustics 2005
Subtitle of host publication	Acoustics in a Changing Environment
Pages	68-73
Number of pages	6
Publication status	Published - 2005
Externally published	Yes
Event	Annual Conference of the Australian Acoustical Society 2005: Acoustics in a Changing Environment, Acoustics 2005 - Busselton, WA, Australia Duration: 9 Nov 2005 → 11 Nov 2005

Publication series

Name	Annual Conference of the Australian Acoustical Society 2005, Acoustics 2005: Acoustics in a Changing Environment

Conference

Conference	Annual Conference of the Australian Acoustical Society 2005: Acoustics in a Changing Environment, Acoustics 2005
Country/Territory	Australia
City	Busselton, WA
Period	9/11/05 → 11/11/05

ASJC Scopus subject areas

Acoustics and Ultrasonics

Cite this

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title = "Beam steering of sound from flat panels using spatially-averaged objective functions",

abstract = "The paper proposes a beam steering method for regulating sound radiation from flat panel structures using multiple structural velocity sensors. Velocity measurements from the structural sensors are used to estimate the velocity profile of the panel, which is then used to estimate the acoustic beam pattern of radiated sound. An objective function is defined for active beam steering purposes, representing the spatially-averaged error between the reference beam pattern and the estimated beam pattern of sound radiation in the far-field. Numerical studies on a rectangular flat panel are used to demonstrate the ability of the proposed method to regulate a beam pattern of sound for steering a beam to different directions in the far-field. It is demonstrated that the proposed method can modify the beam pattern of tonal sound radiation by modifying the vibration velocity profile of the panel.",

author = "D. Halim and Cazzolato, {B. S.}",

note = "Copyright: Copyright 2013 Elsevier B.V., All rights reserved.; Annual Conference of the Australian Acoustical Society 2005: Acoustics in a Changing Environment, Acoustics 2005 ; Conference date: 09-11-2005 Through 11-11-2005",

year = "2005",

language = "English",

isbn = "9781622762682",

series = "Annual Conference of the Australian Acoustical Society 2005, Acoustics 2005: Acoustics in a Changing Environment",

pages = "68--73",

booktitle = "Annual Conference of the Australian Acoustical Society 2005, Acoustics 2005",

}

Halim, D & Cazzolato, BS 2005, Beam steering of sound from flat panels using spatially-averaged objective functions. in Annual Conference of the Australian Acoustical Society 2005, Acoustics 2005: Acoustics in a Changing Environment. Annual Conference of the Australian Acoustical Society 2005, Acoustics 2005: Acoustics in a Changing Environment, pp. 68-73, Annual Conference of the Australian Acoustical Society 2005: Acoustics in a Changing Environment, Acoustics 2005, Busselton, WA, Australia, 9/11/05.

Beam steering of sound from flat panels using spatially-averaged objective functions. / Halim, D.; Cazzolato, B. S.
Annual Conference of the Australian Acoustical Society 2005, Acoustics 2005: Acoustics in a Changing Environment. 2005. p. 68-73 (Annual Conference of the Australian Acoustical Society 2005, Acoustics 2005: Acoustics in a Changing Environment).

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Beam steering of sound from flat panels using spatially-averaged objective functions

AU - Halim, D.

AU - Cazzolato, B. S.

PY - 2005

Y1 - 2005

N2 - The paper proposes a beam steering method for regulating sound radiation from flat panel structures using multiple structural velocity sensors. Velocity measurements from the structural sensors are used to estimate the velocity profile of the panel, which is then used to estimate the acoustic beam pattern of radiated sound. An objective function is defined for active beam steering purposes, representing the spatially-averaged error between the reference beam pattern and the estimated beam pattern of sound radiation in the far-field. Numerical studies on a rectangular flat panel are used to demonstrate the ability of the proposed method to regulate a beam pattern of sound for steering a beam to different directions in the far-field. It is demonstrated that the proposed method can modify the beam pattern of tonal sound radiation by modifying the vibration velocity profile of the panel.

AB - The paper proposes a beam steering method for regulating sound radiation from flat panel structures using multiple structural velocity sensors. Velocity measurements from the structural sensors are used to estimate the velocity profile of the panel, which is then used to estimate the acoustic beam pattern of radiated sound. An objective function is defined for active beam steering purposes, representing the spatially-averaged error between the reference beam pattern and the estimated beam pattern of sound radiation in the far-field. Numerical studies on a rectangular flat panel are used to demonstrate the ability of the proposed method to regulate a beam pattern of sound for steering a beam to different directions in the far-field. It is demonstrated that the proposed method can modify the beam pattern of tonal sound radiation by modifying the vibration velocity profile of the panel.

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M3 - Conference contribution

AN - SCOPUS:84871326033

SN - 9781622762682

T3 - Annual Conference of the Australian Acoustical Society 2005, Acoustics 2005: Acoustics in a Changing Environment

SP - 68

EP - 73

BT - Annual Conference of the Australian Acoustical Society 2005, Acoustics 2005

T2 - Annual Conference of the Australian Acoustical Society 2005: Acoustics in a Changing Environment, Acoustics 2005

Y2 - 9 November 2005 through 11 November 2005

ER -

Beam steering of sound from flat panels using spatially-averaged objective functions

Abstract

Publication series

Conference

ASJC Scopus subject areas

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