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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,...

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Detalles Bibliográficos
Autores principales: Li, Haiqing, Sun, Ping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2022
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.
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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
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