论文标题
耳蜗启发的Tonotopic谐振器的设计和表征
Design and characterization of cochlea-inspired tonotopic resonators
论文作者
论文摘要
由于其引人入胜的螺旋结构和独特的传感特征，该耳蜗长期以来一直是各个研究领域的研究主题。它最有趣的功能之一是能够根据其频率含量在不同空间位置感知声波的能力。在这项工作中，我们基于耳蜗启发的螺旋形成了一个新颖的设计，为一个吨位的谐振器设计了一种新颖的设计。将所得的结构经过优化过程，以表现出平面外振动模式，其平均空间位移最大值沿其中心线分布，跨越了几乎十年的频率范围。进行数值模拟以证明该概念，该概念也可以在3D打印结构上实验确认。获得的频率依赖性分布被证明是歧视具有各种频率组件的信号的可行信息来源。利用的吨位功能可以用作设计结构，用于在非破坏性测试和振动衰减等区域进行应用。
The cochlea has long been the subject of investigation in various research fields due to its intriguing spiral architecture and unique sensing characteristics. One of its most interesting features is the ability to sense acoustic waves at different spatial locations, based on their frequency content. In this work, we propose a novel design for a tonotopic resonator, based on a cochlea-inspired spiral. The resulting structure was subjected to an optimization process to exhibit out-of-plane vibration modes with mean out-of-plane displacement maxima distributed along its centerline spanning nearly a two-decade frequency range. Numerical simulations are performed to demonstrate the concept, which is also confirmed experimentally on a 3D printed structure. The obtained frequency-dependent distribution is shown to be a viable source of information for the discrimination of signals with various frequency components. The harnessed tonotopic features can be used as a fundamental principle to design structures with applications in areas such as non-destructive testing and vibration attenuation.
