论文标题
带孔屏幕的波导中的声传播异常
Abnormal acoustic transmission in a waveguide with perforated screens
论文作者
论文摘要
我们考虑在两个带有小孔的筛网阻塞的声波指导中活塞模式的传播。通常，由于几何特征，几乎没有入射波能量通过结构传输。本文的目的是表明，仔细调整两个形成谐振器的两个屏幕之间的距离，几乎可以完全传输。对于这种现象，我们获得了明确的标准，对于直觉而言并不那么明显。数值实验说明了分析。
We consider the propagation of the piston mode in an acoustic waveguide obstructed by two screens with small holes. In general, due to the features of the geometry, almost no energy of the incident wave is transmitted through the structure. The goal of this article is to show that tuning carefully the distance between the two screens, which form a resonator, one can get almost complete transmission. We obtain an explicit criterion, not so obvious to intuit, for this phenomenon to happen. Numerical experiments illustrate the analysis.
