An acoustic wave asymmetric propagation is implemented by a conical granular chain here. The chain size is gradually changed interacting via Hertzian contacts. Theoretical modeling and numerical analysis are conducted to investigate the diode-like propagation behavior. Results show that the chain blocks/allows the low-frequency acoustic wave, which depend on different configurations and driving amplitudes in a broad frequency band.

中文翻译：

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声波在锥形颗粒链中的不对称传播

声波不对称传播在此通过锥形颗粒链实现。链的大小通过赫兹接触逐渐改变。进行理论建模和数值分析以研究类似二极管的传播行为。结果表明，该链条阻断/允许低频声波，这取决于宽频带中的不同配置和驱动幅度。