Abstract
In order to perform acoustic analysis with sufficient accuracy, the method of treating sound absorption characteristics is important. Modeling theories using flow resistance or complex density / complex sound velocity are generally used in the modeling methods of porous materials. However, since it is difficult to find out necessary material characteristic for prediction of the sound absorption characteristic, acoustic characteristics of sound absorption material may be unable to be predicted. In this research, an easy modeling method of sound absorption material will be proposed for analyzing the 3-dimensional acoustic field that has a sound absorption material. Therefore, an experiment was conducted on the sound tube that has a sound absorption material. The validity of a simple modeling method of sound absorption material is verified by comparison of the experimental result and the calculated result. And the simple modeling method will be applied to automatic water supply equipment. An optimal arrangement of the sound insulation / absorption material was calculated by the numerical analysis. Consequently, the noise could be reduced by 4dB(A). In addition, structural acoustic coupled analysis is due to be performed to the noise reduction in consideration of the sound absorption characteristic of material of automatic water supply equipment.
| Original language | English |
|---|---|
| Title of host publication | Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006 |
| Pages | 2177-2186 |
| Number of pages | 10 |
| Publication status | Published - Dec 1 2006 |
| Event | 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006 - Honolulu, HI, United States Duration: Dec 3 2006 → Dec 6 2006 |
Publication series
| Name | Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006 |
|---|---|
| Volume | 4 |
Other
| Other | 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006 |
|---|---|
| Country | United States |
| City | Honolulu, HI |
| Period | 12/3/06 → 12/6/06 |
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All Science Journal Classification (ASJC) codes
- Acoustics and Ultrasonics
Cite this
Structural - Acoustic coupled analysis in consideration of sound absorption characteristics of materials. / Park, Young Chul; Kanemitsu, Yoichi; Kijimoto, Shinya; Matsuda, Koichi; Koba, Yosuke.
Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006. 2006. p. 2177-2186 (Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006; Vol. 4).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Structural - Acoustic coupled analysis in consideration of sound absorption characteristics of materials
AU - Park, Young Chul
AU - Kanemitsu, Yoichi
AU - Kijimoto, Shinya
AU - Matsuda, Koichi
AU - Koba, Yosuke
PY - 2006/12/1
Y1 - 2006/12/1
N2 - In order to perform acoustic analysis with sufficient accuracy, the method of treating sound absorption characteristics is important. Modeling theories using flow resistance or complex density / complex sound velocity are generally used in the modeling methods of porous materials. However, since it is difficult to find out necessary material characteristic for prediction of the sound absorption characteristic, acoustic characteristics of sound absorption material may be unable to be predicted. In this research, an easy modeling method of sound absorption material will be proposed for analyzing the 3-dimensional acoustic field that has a sound absorption material. Therefore, an experiment was conducted on the sound tube that has a sound absorption material. The validity of a simple modeling method of sound absorption material is verified by comparison of the experimental result and the calculated result. And the simple modeling method will be applied to automatic water supply equipment. An optimal arrangement of the sound insulation / absorption material was calculated by the numerical analysis. Consequently, the noise could be reduced by 4dB(A). In addition, structural acoustic coupled analysis is due to be performed to the noise reduction in consideration of the sound absorption characteristic of material of automatic water supply equipment.
AB - In order to perform acoustic analysis with sufficient accuracy, the method of treating sound absorption characteristics is important. Modeling theories using flow resistance or complex density / complex sound velocity are generally used in the modeling methods of porous materials. However, since it is difficult to find out necessary material characteristic for prediction of the sound absorption characteristic, acoustic characteristics of sound absorption material may be unable to be predicted. In this research, an easy modeling method of sound absorption material will be proposed for analyzing the 3-dimensional acoustic field that has a sound absorption material. Therefore, an experiment was conducted on the sound tube that has a sound absorption material. The validity of a simple modeling method of sound absorption material is verified by comparison of the experimental result and the calculated result. And the simple modeling method will be applied to automatic water supply equipment. An optimal arrangement of the sound insulation / absorption material was calculated by the numerical analysis. Consequently, the noise could be reduced by 4dB(A). In addition, structural acoustic coupled analysis is due to be performed to the noise reduction in consideration of the sound absorption characteristic of material of automatic water supply equipment.
UR - http://www.scopus.com/inward/record.url?scp=84868007169&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84868007169&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84868007169
SN - 9781604231366
T3 - Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006
SP - 2177
EP - 2186
BT - Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006
ER -