Numerical examination of niche effect on sound transmission loss of glass panes
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- Sakuma Tetsuya
- Graduate School of Frontier Sciences, The University of Tokyo
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- Inoue Naohisa
- Graduate School of Frontier Sciences, The University of Tokyo
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- Seike Tsuyoshi
- Design Systems Engineering Center, Mitsubishi Electric Corporation
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Abstract
In the laboratory measurement of the sound transmission loss of platelike building elements, a specimen mounted between coupled rooms causes the so-called niche effect. Normally a specimen is mounted inside an aperture in a thick wall, whereas in a special case where a specimen is mounted flush with the wall, a projecting box frame is additionally installed outside the opening. Firstly, the measurements of a glass pane with the two types of niche are numerically modeled by vibro-acoustic simulation, and the niche effect is examined while changing the niche depth and specimen position. As a result, it is revealed that the effect of the projecting niche is generally smaller than that of the recessing niche. Secondly, regarding the cross-sectional shape of the recessing niche, the smaller effect of the staggered niche specified in ISO 10140 is validated by comparison with that of a flat niche. Additionally, the incidence angle dependence of the niche effect is clarified.
Journal
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- Acoustical Science and Technology
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Acoustical Science and Technology 38 (6), 279-286, 2017
ACOUSTICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282680066933888
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- NII Article ID
- 130006192049
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- NII Book ID
- AA11501808
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- ISSN
- 13475177
- 03694232
- 13463969
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- NDL BIB ID
- 028638488
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed