Research on the sound absorption characteristics of porous metal materials at high sound pressure levels
Porous metal materials are widely used in noise control with high sound pressure applications such as aircraft engine liners and combustion chambers for rocket engines due to their excellent performance of sound absorption characteristics and distinguished advantages in heat resistance, lightness, a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2015-05-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/1687814015575429 |
| _version_ | 1828876911180251136 |
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| author | Xiaopeng Wang Yinggang Li Tianning Chen Zhiping Ying |
| author_facet | Xiaopeng Wang Yinggang Li Tianning Chen Zhiping Ying |
| author_sort | Xiaopeng Wang |
| collection | DOAJ |
| description | Porous metal materials are widely used in noise control with high sound pressure applications such as aircraft engine liners and combustion chambers for rocket engines due to their excellent performance of sound absorption characteristics and distinguished advantages in heat resistance, lightness, and stiffness. Understanding the effect of sound pressure on the acoustic properties of these materials is crucial when attempting to predict silencer performance. In this article, we experimentally investigate the sound absorption characteristics of porous metal materials at high sound pressure level. The effects of material parameters on the sound absorption characteristics of porous metal materials under high sound pressure level are further explored experimentally. Measurements are carried out by using a standard impedance tube that has been modified to accommodate sound pressure level of up to 150 dB. The experimental results show that with the increase in sound pressure level, the effect of sound pressure level on the sound absorption characteristics yields different variation regularities in different frequencies. The sound absorption performance of porous metal materials increases with the increase in sound pressure level in low frequency, which is reasonably consistent with the theoretical results. Under high sound pressure level, the sound absorption characteristics are significantly dependent upon the material parameters such as the metal fiber diameter, the material porosity, and the material thickness. It could provide a reliable experimental validation for the applications of porous metal materials in the area of vibration and noise control at high sound pressure levels. |
| first_indexed | 2024-12-13T08:29:59Z |
| format | Article |
| id | doaj.art-8d7d3c7f25e24540ae86dde08eb40d3e |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-13T08:29:59Z |
| publishDate | 2015-05-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-8d7d3c7f25e24540ae86dde08eb40d3e2022-12-21T23:53:46ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402015-05-01710.1177/168781401557542910.1177_1687814015575429Research on the sound absorption characteristics of porous metal materials at high sound pressure levelsXiaopeng WangYinggang LiTianning ChenZhiping YingPorous metal materials are widely used in noise control with high sound pressure applications such as aircraft engine liners and combustion chambers for rocket engines due to their excellent performance of sound absorption characteristics and distinguished advantages in heat resistance, lightness, and stiffness. Understanding the effect of sound pressure on the acoustic properties of these materials is crucial when attempting to predict silencer performance. In this article, we experimentally investigate the sound absorption characteristics of porous metal materials at high sound pressure level. The effects of material parameters on the sound absorption characteristics of porous metal materials under high sound pressure level are further explored experimentally. Measurements are carried out by using a standard impedance tube that has been modified to accommodate sound pressure level of up to 150 dB. The experimental results show that with the increase in sound pressure level, the effect of sound pressure level on the sound absorption characteristics yields different variation regularities in different frequencies. The sound absorption performance of porous metal materials increases with the increase in sound pressure level in low frequency, which is reasonably consistent with the theoretical results. Under high sound pressure level, the sound absorption characteristics are significantly dependent upon the material parameters such as the metal fiber diameter, the material porosity, and the material thickness. It could provide a reliable experimental validation for the applications of porous metal materials in the area of vibration and noise control at high sound pressure levels.https://doi.org/10.1177/1687814015575429 |
| spellingShingle | Xiaopeng Wang Yinggang Li Tianning Chen Zhiping Ying Research on the sound absorption characteristics of porous metal materials at high sound pressure levels Advances in Mechanical Engineering |
| title | Research on the sound absorption characteristics of porous metal materials at high sound pressure levels |
| title_full | Research on the sound absorption characteristics of porous metal materials at high sound pressure levels |
| title_fullStr | Research on the sound absorption characteristics of porous metal materials at high sound pressure levels |
| title_full_unstemmed | Research on the sound absorption characteristics of porous metal materials at high sound pressure levels |
| title_short | Research on the sound absorption characteristics of porous metal materials at high sound pressure levels |
| title_sort | research on the sound absorption characteristics of porous metal materials at high sound pressure levels |
| url | https://doi.org/10.1177/1687814015575429 |
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