Abstract
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.
| Original language | English |
|---|---|
| Article number | 106885 |
| Journal | Communications in Nonlinear Science and Numerical Simulation |
| Volume | 116 |
| DOIs | |
| State | Published - Jan 2023 |
| Externally published | Yes |
Keywords
- Acoustic metamaterial
- Asymmetric propagation
- Granular chain
- Quasi-periodic structure
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