吸收(声学)
虹吸(软体动物)
声学
水下
衰减系数
声音(地理)
声压
次声
降噪系数
声波
材料科学
音频
物理
声音传输等级
光学
地质学
海洋学
复合材料
生物
生态学
多孔性
作者
Li Bo Wang,Cheng Zhi,Jiu Hui Wu,Chong Rui Liu
标识
DOI:10.1142/s021798492150319x
摘要
The underwater acoustic siphon effect is proposed in this work, which aims to reveal the basic physical mechanism of high-efficiency sound absorption in meta-structures composed of multiple detuned units. Furthermore, the influence of the area ratio on the underwater acoustic siphon effect is then investigated by finite element simulation (FES) and theoretical calculation. On this basis, a meta-structure with the maximum absorption coefficient of almost 100% and average absorption coefficient of 80% at 600–1400 Hz is achieved. The underwater acoustic siphon effect could provide a better understanding of high-efficiency sound absorption and offer a new perspective in controlling underwater noises.
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