Sonic crystal acoustic switch device.

Autor: Alagoz, Serkan, Baykant Alagoz, Baris
Předmět:
Zdroj: Journal of the Acoustical Society of America; Jun2013, Vol. 133 Issue 6, pEL485-EL490, 6p
Abstrakt: This study reports a wave-controlled sonic crystal switch device that exhibits a destructive interference-based wave to wave reverse switching effect. By applying control waves, this acoustic device, composed of a two-dimensional square lattice sonic crystal block, reduces acoustic wave transmission from input to output. The finite difference time domain simulation and experimental results confirm the wave-to-wave reverse switching effect at the peak frequencies of the second band. The proposed sonic crystal switch prototype provides a contrast rate of 86% at 11.3 kHz frequency. This wave-to-wave switching effect is useful for controlling wave propagation for smart structure applications. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index