论文标题
使用薄谐振缝隙的声学分配器设计
Design of an acoustic energy distributor using thin resonant slits
论文作者
论文摘要
我们考虑具有三个通道的设备中时间谐波声波的传播。选择波数使得只有活塞模式可以传播。这项工作的主要目标是提出可以用作能源分销商的几何形状。更确切地说，几何形状是首先设计的，因此对于来自一个通道的事件波，能量几乎完全传播在其他两个通道中。此外，调整了两个几何参数，我们可以控制两个通道中传播的能量之比。该方法基于渐近分析，用于谐振长度周围的细缝隙。我们还提供数值结果来说明理论。
We consider the propagation of time harmonic acoustic waves in a device with three channels. The wave number is chosen such that only the piston mode can propagate. The main goal of this work is to present a geometry which can serve as an energy distributor. More precisely, the geometry is first designed so that for an incident wave coming from one channel, the energy is almost completely transmitted in the two other channels. Additionally, tuning a bit two geometrical parameters, we can control the ratio of energy transmitted in the two channels. The approach is based on asymptotic analysis for thin slits around resonance lengths. We also provide numerical results to illustrate the theory.
