Low-frequency attenuation signal absorption performance of thin-film acoustic metamaterials
Considering that thin film acoustic metamaterials have many special properties that natural materials and traditional materials do not possess, the low-frequency attenuation signal absorption performance of thin film acoustic metamaterials is studied. Prepare thin film acoustic metamaterials using r...
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| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | Acta Acustica |
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| Online Access: | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2024/01/aacus240082/aacus240082.html |
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| _version_ | 1841557691178156032 |
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| author | Xu Jingcheng Chen Changzheng |
| author_facet | Xu Jingcheng Chen Changzheng |
| author_sort | Xu Jingcheng |
| collection | DOAJ |
| description | Considering that thin film acoustic metamaterials have many special properties that natural materials and traditional materials do not possess, the low-frequency attenuation signal absorption performance of thin film acoustic metamaterials is studied. Prepare thin film acoustic metamaterials using raw materials such as silicone, calculate the basic law of low-frequency attenuation signal absorption based on this material, and determine the acoustic parameters of thin film acoustic metamaterials through calculation. Using the obtained acoustic parameters as inputs, a finite element numerical model of thin film acoustic metamaterials is used to analyze the low-frequency attenuation signal absorption performance under changes in porosity, thickness, density, size, tension, parameter error, and frame material and mass width in contact area with the thin film. The experimental results show that when the porosity is 95%, the thickness is 11, the variable length is 16 mm, the tension force is 160 N/m, and the contact area between the mass block and the film is 5.5 mm2, the absorption effect of low-frequency attenuation signals is the best. The frame material and elastic modulus have little effect on the absorption performance of the thin film acoustic material. |
| format | Article |
| id | doaj-art-13391ba848cb457c82abe65ae2f6527a |
| institution | Kabale University |
| issn | 2681-4617 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Acta Acustica |
| spelling | doaj-art-13391ba848cb457c82abe65ae2f6527a2025-01-06T10:56:07ZengEDP SciencesActa Acustica2681-46172024-01-0188010.1051/aacus/2024066aacus240082Low-frequency attenuation signal absorption performance of thin-film acoustic metamaterialsXu Jingcheng0Chen Changzheng1School of Mechanical Engineering, Shenyang University of TechnologySchool of Mechanical Engineering, Shenyang University of TechnologyConsidering that thin film acoustic metamaterials have many special properties that natural materials and traditional materials do not possess, the low-frequency attenuation signal absorption performance of thin film acoustic metamaterials is studied. Prepare thin film acoustic metamaterials using raw materials such as silicone, calculate the basic law of low-frequency attenuation signal absorption based on this material, and determine the acoustic parameters of thin film acoustic metamaterials through calculation. Using the obtained acoustic parameters as inputs, a finite element numerical model of thin film acoustic metamaterials is used to analyze the low-frequency attenuation signal absorption performance under changes in porosity, thickness, density, size, tension, parameter error, and frame material and mass width in contact area with the thin film. The experimental results show that when the porosity is 95%, the thickness is 11, the variable length is 16 mm, the tension force is 160 N/m, and the contact area between the mass block and the film is 5.5 mm2, the absorption effect of low-frequency attenuation signals is the best. The frame material and elastic modulus have little effect on the absorption performance of the thin film acoustic material.https://acta-acustica.edpsciences.org/articles/aacus/full_html/2024/01/aacus240082/aacus240082.htmlthin film typeacoustic metamaterialslow frequency attenuation signalabsorption performancefinite element methodporiness |
| spellingShingle | Xu Jingcheng Chen Changzheng Low-frequency attenuation signal absorption performance of thin-film acoustic metamaterials Acta Acustica thin film type acoustic metamaterials low frequency attenuation signal absorption performance finite element method poriness |
| title | Low-frequency attenuation signal absorption performance of thin-film acoustic metamaterials |
| title_full | Low-frequency attenuation signal absorption performance of thin-film acoustic metamaterials |
| title_fullStr | Low-frequency attenuation signal absorption performance of thin-film acoustic metamaterials |
| title_full_unstemmed | Low-frequency attenuation signal absorption performance of thin-film acoustic metamaterials |
| title_short | Low-frequency attenuation signal absorption performance of thin-film acoustic metamaterials |
| title_sort | low frequency attenuation signal absorption performance of thin film acoustic metamaterials |
| topic | thin film type acoustic metamaterials low frequency attenuation signal absorption performance finite element method poriness |
| url | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2024/01/aacus240082/aacus240082.html |
| work_keys_str_mv | AT xujingcheng lowfrequencyattenuationsignalabsorptionperformanceofthinfilmacousticmetamaterials AT chenchangzheng lowfrequencyattenuationsignalabsorptionperformanceofthinfilmacousticmetamaterials |