Abstract:The control of low-frequency noise in buildings has become a critical issue because of the inadequate sound insulation in low frequencies (<200 Hz) for most partitions and doors. In the present study, an analytical model has been proposed to specify the relationship between the acoustic parameters such as acoustic impedance of honeycomb and the honeycomb geometry. In this regards, three materials (Polycarbonate, Polypropylene, and Polyurethane), seven angles (45°, 30°, 15°, 0°, −15°, −30°, −45°), and three … Show more
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