Sound transmission loss enhancement through triple-peak coupled resonances acoustic metamaterials
Coupled resonances mechanisms combined with the notion of acoustic metamaterials offer exceptional sound insulation capabilities, even at the challenging low frequency ranges below 1000 Hz. In this context, the concept of Multiresonant Layered Acoustic Metamaterial (MLAM) emerged as a promising prac...
| Authors: | ; ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2024 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/406515 |
| Online Access: | https://hdl.handle.net/2117/406515 https://dx.doi.org/10.1016/j.ijmecsci.2023.108951 |
| Access Level: | Open access |
| Keyword: | Soundproofing Metamaterials Sound--Transmission Sound insulation Acoustic metamaterials Broadband attenuation Multilayer panels Coupled resonances Zero-stiffness response Aïllament acústic So--Transmissió Àrees temàtiques de la UPC::Física::Acústica |
| _version_ | 1878735569388830720 |
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| author | Sal Anglada, Gastón|||0000-0002-0560-0035 |
| author2 | Yago Llamas, Daniel|||0000-0002-2141-2683 Cante Terán, Juan Carlos|||0000-0002-9887-4448 Oliver Olivella, Xavier|||0000-0001-8717-1483 Roca Cazorla, David|||0000-0001-6336-6024 |
| author2_role | author author author author |
| author_browse | Cante Terán, Juan Carlos|||0000-0002-9887-4448 Oliver Olivella, Xavier|||0000-0001-8717-1483 Roca Cazorla, David|||0000-0001-6336-6024 Sal Anglada, Gastón|||0000-0002-0560-0035 Yago Llamas, Daniel|||0000-0002-2141-2683 |
| author_facet | Sal Anglada, Gastón|||0000-0002-0560-0035 Yago Llamas, Daniel|||0000-0002-2141-2683 Cante Terán, Juan Carlos|||0000-0002-9887-4448 Oliver Olivella, Xavier|||0000-0001-8717-1483 Roca Cazorla, David|||0000-0001-6336-6024 |
| author_role | author |
| collection | UPCommons. Portal del coneixement obert de la UPC |
| description | Coupled resonances mechanisms combined with the notion of acoustic metamaterials offer exceptional sound insulation capabilities, even at the challenging low frequency ranges below 1000 Hz. In this context, the concept of Multiresonant Layered Acoustic Metamaterial (MLAM) emerged as a promising practical realization exploiting this phenomenon to produce a double-peak sound transmission loss (STL) response in a multilayer configuration that allows to overcome the challenge of manufacturing. This study proposes a novel enhanced MLAM-based design (MLAM+) that greatly improves the device’s STL response by allowing the coupling of a third additional peak, when compared to equivalent double-peak configurations. In contrast to existing metamaterial-based solutions, this third peak is not caused by local resonance effects, but through inducing a combined zero-stiffness response on the panel. Through analytical and numerical validation, it is demonstrated that the frequency of this third peak can be controlled through the geometrical features of the layered design, and it can be tuned to broaden the effective attenuation bandwidth and/or to increase the level of attenuation without necessarily increasing the overall mass and maintaining the load-bearing capabilities of the panel. This opens the path towards a metamaterial’s design methodology capable of tackling different functional outcomes depending on the application. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_7f58d6ee7c9d8bcf58c56cccd0a4e58f |
| institution | Universitat Politècnica de Catalunya (UPC) |
| instname_str | Universitat Politècnica de Catalunya (UPC) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:upcommons.upc.edu:2117/406515 |
| publishDate | 2024 |
| publishDateSort | 2024 |
| reponame_str | UPCommons. Portal del coneixement obert de la UPC |
| spelling | Sound transmission loss enhancement through triple-peak coupled resonances acoustic metamaterials Sal Anglada, Gastón|||0000-0002-0560-0035 Yago Llamas, Daniel|||0000-0002-2141-2683 Cante Terán, Juan Carlos|||0000-0002-9887-4448 Oliver Olivella, Xavier|||0000-0001-8717-1483 Roca Cazorla, David|||0000-0001-6336-6024 Soundproofing Metamaterials Sound--Transmission Sound insulation Acoustic metamaterials Broadband attenuation Multilayer panels Coupled resonances Zero-stiffness response Aïllament acústic So--Transmissió Àrees temàtiques de la UPC::Física::Acústica Coupled resonances mechanisms combined with the notion of acoustic metamaterials offer exceptional sound insulation capabilities, even at the challenging low frequency ranges below 1000 Hz. In this context, the concept of Multiresonant Layered Acoustic Metamaterial (MLAM) emerged as a promising practical realization exploiting this phenomenon to produce a double-peak sound transmission loss (STL) response in a multilayer configuration that allows to overcome the challenge of manufacturing. This study proposes a novel enhanced MLAM-based design (MLAM+) that greatly improves the device’s STL response by allowing the coupling of a third additional peak, when compared to equivalent double-peak configurations. In contrast to existing metamaterial-based solutions, this third peak is not caused by local resonance effects, but through inducing a combined zero-stiffness response on the panel. Through analytical and numerical validation, it is demonstrated that the frequency of this third peak can be controlled through the geometrical features of the layered design, and it can be tuned to broaden the effective attenuation bandwidth and/or to increase the level of attenuation without necessarily increasing the overall mass and maintaining the load-bearing capabilities of the panel. This opens the path towards a metamaterial’s design methodology capable of tackling different functional outcomes depending on the application. The authors acknowledge the Spanish Ministry of Science and Innovation (Spain) (MCIN/AEI/10.13039/501100011033) for supporting G. Sal-Anglada with the PhD Grant PRE2019-088777 under the FPI programme, and for funding this research through the “Severo Ochoa Programme for Centres of Excellence in R and D” (Grant CEX2018-000797-S-19-1) and the AC-METATECH project (TED2021-129413B-C21). This research has also been funded by the Ministry of Research and Universities of the Government of Catalonia (Spain) , through the research grant 2021-PROD-00016 for the project METACOUSTECH. Peer Reviewed https://hdl.handle.net/2117/406515 https://dx.doi.org/10.1016/j.ijmecsci.2023.108951 |
| spellingShingle | Sound transmission loss enhancement through triple-peak coupled resonances acoustic metamaterials Sal Anglada, Gastón|||0000-0002-0560-0035 Soundproofing Metamaterials Sound--Transmission Sound insulation Acoustic metamaterials Broadband attenuation Multilayer panels Coupled resonances Zero-stiffness response Aïllament acústic So--Transmissió Àrees temàtiques de la UPC::Física::Acústica |
| title | Sound transmission loss enhancement through triple-peak coupled resonances acoustic metamaterials |
| title_full | Sound transmission loss enhancement through triple-peak coupled resonances acoustic metamaterials |
| title_fullStr | Sound transmission loss enhancement through triple-peak coupled resonances acoustic metamaterials |
| title_full_unstemmed | Sound transmission loss enhancement through triple-peak coupled resonances acoustic metamaterials |
| title_short | Sound transmission loss enhancement through triple-peak coupled resonances acoustic metamaterials |
| title_sort | Sound transmission loss enhancement through triple-peak coupled resonances acoustic metamaterials |
| topic | Soundproofing Metamaterials Sound--Transmission Sound insulation Acoustic metamaterials Broadband attenuation Multilayer panels Coupled resonances Zero-stiffness response Aïllament acústic So--Transmissió Àrees temàtiques de la UPC::Física::Acústica |
| topic_facet | Soundproofing Metamaterials Sound--Transmission Sound insulation Acoustic metamaterials Broadband attenuation Multilayer panels Coupled resonances Zero-stiffness response Aïllament acústic So--Transmissió Àrees temàtiques de la UPC::Física::Acústica |
| url | https://hdl.handle.net/2117/406515 https://dx.doi.org/10.1016/j.ijmecsci.2023.108951 |