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Numerical modeling of acoustic field of loudspeaker
| Citace: |
PETRÁŠOVÁ, I., KARBAN, P., TUREČEK, O., BOUZEK, S., ZUZJAK, L., SCHLOSSER, M., KROFT, R. Numerical modeling of acoustic field of loudspeaker. In Proceedings of 2017 18th International Conference Computational Problems of Electrical Engineering (CPEE). Piscataway: IEEE, 2017. s. 1-4. ISBN: 978-1-5386-1040-4
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| Druh: | STAŤ VE SBORNÍKU |
| Jazyk publikace: | eng |
| Anglický název: | Numerical modeling of acoustic field of loudspeaker |
| Rok vydání: | 2017 |
| Místo konání: | Piscataway |
| Název zdroje: | IEEE |
| Autoři: | Ing. Iveta Petrášová , Doc. Ing. Pavel Karban Ph.D. , Ing. Oldřich Tureček Ph.D. , Ing. Stanislav Bouzek , Ing. Ladislav Zuzjak , Ing. Martin Schlosser , Ing. Roman Kroft |
| Abstrakt EN: | Numerical modeling of harmonic acoustic field produced by a common commercial loudspeaker is carried out. The goal is to obtain the directional characteristic of the device. The continuous mathematical model is derived from the physical laws and is considered for the ideal fluids with properties of a perfect continuum. The model of the loudspeaker in the axial symmetry (2D) is described by the Helmholtz differential equation for harmonic acoustic field and for the correct solution the appropriate boundary conditions and material properties are also defined. The data obtained during the measurement must be used to implement the model. In our case, there was the fundamental knowledge of the velocity of the diaphragm oscillation for the selected frequencies. |
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