Research on the Influence of Airflow Resistance of Layered Porous Structures on the Sound Absorption Coefficient
2022
artykuł naukowy
angielski
- airflow resistance
- anechoic wedges
- transfer matrix method
- optimization
- PSO
EN The paper presents the research on the influence of airflow resistance on the sound absorption coefficient of layered porous structures. For the calculation of the sound absorption coefficient, the models of layered sound-absorbing structures were developed with the use of numerical computational models. Using the developed models, optimization was carried out to maximize the average sound absorption coefficient of the structures for a given frequency range. As a result of the research, the dependence of the change in airflow resistance for the successive layers of the material was determined. The results of the work will be particularly useful in the design of wedges used in anechoic chambers.
2022311-1 - 2022311-6
article number: 2022311
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