Abstract
Abstract
This paper proposes a resonant-type acoustic black hole (ABH). The ABH is achieved with gradient refractive index varies from the center of the lens to its outer surface. The performance of wave focusing and vibration reduction via the ABH is explored theoretically and numerically. Results show that the designed ABH can achieve wave focusing inside the lens and provide good vibration reduction at low frequency.
Funder
Natural Science Foundation of Anhui Province
Fundamental Research Funds for the Central Universities
BIGC Projects