Journal article 67 views
Experimental validation of a multi-material acoustic black hole
The Journal of the Acoustical Society of America, Volume: 154, Issue: 4_supplement, Pages: A266 - A266
Swansea University Author: Anil Bastola
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DOI (Published version): 10.1121/10.0023481
Abstract
Geometric acoustic black holes (ABHs) have already been proven as an effective passive vibration control measure in plates and beams. However, the thin geometries inherent to the design raise concerns about the structure’s resistance to damage through fatigue. Multi-material ABHs (MM-ABHs) have been...
| Published in: | The Journal of the Acoustical Society of America |
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| ISSN: | 0001-4966 1520-8524 |
| Published: |
Acoustical Society of America (ASA)
2023
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa65772 |
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| Abstract: |
Geometric acoustic black holes (ABHs) have already been proven as an effective passive vibration control measure in plates and beams. However, the thin geometries inherent to the design raise concerns about the structure’s resistance to damage through fatigue. Multi-material ABHs (MM-ABHs) have been proposed as an alternative solution where by the material properties vary along the direction of wave propagation instead of the geometry. This, in theory, produces a change in acoustic impedance without the issues of fatigue seen in the geometric ABHs. Previous work has been performed on the design and modeling of polymer multi-material ABHs. This work discusses practices for experimental measurement and validation of multi-material ABHs produced through additive manufacturing. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
4_supplement |
| Start Page: |
A266 |
| End Page: |
A266 |