| Autor: |
Victor M. Garcia-Chocano, Daniel Torrent, José Sánchez-Dehesa |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| DOI: |
10.1063/1.4862417 |
| Popis: |
A review of the recent advances on acoustic cloaking for airborne sound is here reported. It is shown that engineering acoustic cloaks based on transformation acoustics has a main drawback: there are no passive materials for increasing the sound speed with respect to that of air at room temperature. Such limitation is here overcome by introducing a cloaking shell with a temperature gradient. We also describe the design, fabrication and characterization of two-dimensional and three-dimensional axisymmetric acoustic cloaks based on scattering cancellation. The broadband and omnidirectional operation of these cloaks remain as a challenge for the future. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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