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Vibration Isolation and Noise Reduction Method Based on Phononic Crystal
Phononic crystal is a new kind of sound insulation material, which has an elastic wave gap. When the elastic wave falls within the band gap, it will attenuate strongly in phononic crystal, and its attenuation degree is far greater than the predicted value of the mass density theorem. In this paper,...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9576363/ https://www.ncbi.nlm.nih.gov/pubmed/36262598 http://dx.doi.org/10.1155/2022/9903645 |
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author | Li, Haiqing Sun, Ping |
author_facet | Li, Haiqing Sun, Ping |
author_sort | Li, Haiqing |
collection | PubMed |
description | Phononic crystal is a new kind of sound insulation material, which has an elastic wave gap. When the elastic wave falls within the band gap, it will attenuate strongly in phononic crystal, and its attenuation degree is far greater than the predicted value of the mass density theorem. In this paper, the practical application of phononic crystals in low frequency sound insulation is taken as the breakthrough point. Firstly, the theory of phononic crystal band gap generation is calculated and analyzed, and the band structure of one-dimensional two-component Bragg scattering phononic crystals is calculated. Hypermesh is used to build the model, and the sound insulation performance of phononic crystals is simulated and analyzed through Nastran. A sound isolation test platform was built for the local resonant phononic crystal samples to verify its sound isolation ability. |
format | Online Article Text |
id | pubmed-9576363 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-95763632022-10-18 Vibration Isolation and Noise Reduction Method Based on Phononic Crystal Li, Haiqing Sun, Ping Comput Intell Neurosci Research Article Phononic crystal is a new kind of sound insulation material, which has an elastic wave gap. When the elastic wave falls within the band gap, it will attenuate strongly in phononic crystal, and its attenuation degree is far greater than the predicted value of the mass density theorem. In this paper, the practical application of phononic crystals in low frequency sound insulation is taken as the breakthrough point. Firstly, the theory of phononic crystal band gap generation is calculated and analyzed, and the band structure of one-dimensional two-component Bragg scattering phononic crystals is calculated. Hypermesh is used to build the model, and the sound insulation performance of phononic crystals is simulated and analyzed through Nastran. A sound isolation test platform was built for the local resonant phononic crystal samples to verify its sound isolation ability. Hindawi 2022-10-10 /pmc/articles/PMC9576363/ /pubmed/36262598 http://dx.doi.org/10.1155/2022/9903645 Text en Copyright © 2022 Haiqing Li and Ping Sun. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Li, Haiqing Sun, Ping Vibration Isolation and Noise Reduction Method Based on Phononic Crystal |
title | Vibration Isolation and Noise Reduction Method Based on Phononic Crystal |
title_full | Vibration Isolation and Noise Reduction Method Based on Phononic Crystal |
title_fullStr | Vibration Isolation and Noise Reduction Method Based on Phononic Crystal |
title_full_unstemmed | Vibration Isolation and Noise Reduction Method Based on Phononic Crystal |
title_short | Vibration Isolation and Noise Reduction Method Based on Phononic Crystal |
title_sort | vibration isolation and noise reduction method based on phononic crystal |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9576363/ https://www.ncbi.nlm.nih.gov/pubmed/36262598 http://dx.doi.org/10.1155/2022/9903645 |
work_keys_str_mv | AT lihaiqing vibrationisolationandnoisereductionmethodbasedonphononiccrystal AT sunping vibrationisolationandnoisereductionmethodbasedonphononiccrystal |