Modelling Acoustic Horns with FEA

Murphy DJ, Morgans R. Modelling Acoustic Horns with FEA. In: AES Convention 128. Audio Engineering Society; 2010. Paper 8076. Available from: https://aes.org/publications/elibrary-page/?id=15373

@inproceedings{Murphy2010_15373,
  author = {Murphy, David J. and Morgans, Rick},
  title = {{Modelling Acoustic Horns with FEA}},
  booktitle = {AES Convention 128},
  note = {Paper 8076},
  year = {2010},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15373}
}

TY  - CPAPER
TI  - Modelling Acoustic Horns with FEA
AU  - Murphy, David J.
AU  - Morgans, Rick
T2  - AES Convention 128
M1  - Paper 8076
PY  - 2010
DA  - 2010/05/06
UR  - https://aes.org/publications/elibrary-page/?id=15373
PB  - Audio Engineering Society
LA  - en
AB  - Simulations for acoustic horns have been developed using Finite Element Analysis (FEA) in both ANSYS and COMSOL modelling software. The FEA method solves the ideal, linear wave equation, so the effects of non-linearity and viscosity are not inherently simulated. Quarter models were used in each case as the acoustic horns were not axi-symmetric. The size and shape of the horns have been informed by longstanding design parameters. The simulation results have been compared with acoustic measurements, and discrepancies investigated. While it was found that beam angle (dispersion) characteristics were relatively robust, it was useful in both cases to improve the accuracy of the beam angle, SPL, and impedance simulations by the application of frequency dependent damping to models of the compression driver.
ER  -