Lu Wenjia, Jia Han, Bi Yafeng, Yang Yuzhen, Yang Jun
State Key Laboratory of Acoustics and Key Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of Sciences, No.21 North 4th Ring Road, Beijing 100190, People's Republic of China.
J Acoust Soc Am. 2017 Jul;142(1):84. doi: 10.1121/1.4990952.
In this paper, a broadband acoustic right-angle bend device in air is designed, fabricated and experimentally characterized. Perforated panels with various hole-sizes are used to construct the bend structure. Both the simulated and experimental results verify that the acoustic beam can be rotated effectively through the acoustic bend in a wide frequency range. This model may have potential applications in some areas such as sound absorption and acoustic detection in elbow pipes.
