Predicting the Acoustic Power Radiation from Loudspeaker Cabinets: A Numerically Efficient Approach
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M. Cobianchi, and M. Rousseau, "Predicting the Acoustic Power Radiation from Loudspeaker Cabinets: A Numerically Efficient Approach," Paper 9367, (2015 October.). doi:
M. Cobianchi, and M. Rousseau, "Predicting the Acoustic Power Radiation from Loudspeaker Cabinets: A Numerically Efficient Approach," Paper 9367, (2015 October.). doi:
Abstract: Loudspeaker cabinets should not contribute at all to the total sound radiation but aim instead to be a perfectly rigid box that encloses the drive units. To achieve this goal, state of the art FEM software packages and Doppler vibro-meters are the tools at our disposal. The modeling steps covered in the paper are: measuring and fitting orthotropic material properties, including damping; 3D mechanical modeling with a curvilinear coordinates system and thin elastic layers to represent glue joints; scanning laser Doppler measurements and single point vibration measurements with an accelerometer. Additionally a numerically efficient post-processing approach used to extract the total radiated acoustic power and an example of what kind of improvement can be expected from a typical design optimization are presented.
@article{cobianchi2015predicting,
author={cobianchi, mattia and rousseau, martial},
journal={journal of the audio engineering society},
title={predicting the acoustic power radiation from loudspeaker cabinets: a numerically efficient approach},
year={2015},
volume={},
number={},
pages={},
doi={},
month={october},}
@article{cobianchi2015predicting,
author={cobianchi, mattia and rousseau, martial},
journal={journal of the audio engineering society},
title={predicting the acoustic power radiation from loudspeaker cabinets: a numerically efficient approach},
year={2015},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={loudspeaker cabinets should not contribute at all to the total sound radiation but aim instead to be a perfectly rigid box that encloses the drive units. to achieve this goal, state of the art fem software packages and doppler vibro-meters are the tools at our disposal. the modeling steps covered in the paper are: measuring and fitting orthotropic material properties, including damping; 3d mechanical modeling with a curvilinear coordinates system and thin elastic layers to represent glue joints; scanning laser doppler measurements and single point vibration measurements with an accelerometer. additionally a numerically efficient post-processing approach used to extract the total radiated acoustic power and an example of what kind of improvement can be expected from a typical design optimization are presented.},}
TY - paper
TI - Predicting the Acoustic Power Radiation from Loudspeaker Cabinets: A Numerically Efficient Approach
SP -
EP -
AU - Cobianchi, Mattia
AU - Rousseau, Martial
PY - 2015
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2015
TY - paper
TI - Predicting the Acoustic Power Radiation from Loudspeaker Cabinets: A Numerically Efficient Approach
SP -
EP -
AU - Cobianchi, Mattia
AU - Rousseau, Martial
PY - 2015
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2015
AB - Loudspeaker cabinets should not contribute at all to the total sound radiation but aim instead to be a perfectly rigid box that encloses the drive units. To achieve this goal, state of the art FEM software packages and Doppler vibro-meters are the tools at our disposal. The modeling steps covered in the paper are: measuring and fitting orthotropic material properties, including damping; 3D mechanical modeling with a curvilinear coordinates system and thin elastic layers to represent glue joints; scanning laser Doppler measurements and single point vibration measurements with an accelerometer. Additionally a numerically efficient post-processing approach used to extract the total radiated acoustic power and an example of what kind of improvement can be expected from a typical design optimization are presented.
Loudspeaker cabinets should not contribute at all to the total sound radiation but aim instead to be a perfectly rigid box that encloses the drive units. To achieve this goal, state of the art FEM software packages and Doppler vibro-meters are the tools at our disposal. The modeling steps covered in the paper are: measuring and fitting orthotropic material properties, including damping; 3D mechanical modeling with a curvilinear coordinates system and thin elastic layers to represent glue joints; scanning laser Doppler measurements and single point vibration measurements with an accelerometer. Additionally a numerically efficient post-processing approach used to extract the total radiated acoustic power and an example of what kind of improvement can be expected from a typical design optimization are presented.
Open Access
Authors:
Cobianchi, Mattia; Rousseau, Martial
Affiliation:
B&W Group Ltd., West Sussex, UK
AES Convention:
139 (October 2015)
Paper Number:
9367
Publication Date:
October 23, 2015Import into BibTeX
Subject:
Transducers/Perception
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=17925