Predicting the Acoustic Power Radiation from Loudspeaker Cabinets: A Numerically Efficient Approach

Cobianchi M, Rousseau M. Predicting the Acoustic Power Radiation from Loudspeaker Cabinets: A Numerically Efficient Approach. In: AES Convention 139. Audio Engineering Society; 2015. Paper 9367. Available from: https://aes.org/publications/elibrary-page/?id=17925

@inproceedings{Cobianchi2015_17925,
  author = {Cobianchi, Mattia and Rousseau, Martial},
  title = {{Predicting the Acoustic Power Radiation from Loudspeaker Cabinets: A Numerically Efficient Approach}},
  booktitle = {AES Convention 139},
  note = {Paper 9367},
  year = {2015},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17925}
}

TY  - CPAPER
TI  - Predicting the Acoustic Power Radiation from Loudspeaker Cabinets: A Numerically Efficient Approach
AU  - Cobianchi, Mattia
AU  - Rousseau, Martial
T2  - AES Convention 139
M1  - Paper 9367
PY  - 2015
DA  - 2015/10/06
UR  - https://aes.org/publications/elibrary-page/?id=17925
PB  - Audio Engineering Society
LA  - en
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.
ER  -