書誌事項
- タイトル別名
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- Properties of Expansion-Chamber Muffler with Short Axial Length.
- ジク ホウコウ ナガサ ノ ミジカイ ボウチョウガタ ショウオンキ ノ トクセイ
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We studied acoustical properties of a single dust expansion in an infinite circular duct. As is generally known, in the case of long duct expansion, its properties depend on interference of sound waves propagating in the axial direction, but in the case of sufficiently short duct expansion, it behaves as a resonator muffler. In this study, we considered duct expansions with short axial length in between the above two cases, and indicated the change of properties of such duct expansion according to its length by experiment and numerical calculation. The incident waves were the plane wave and the (1, 1) mode wave. The calculated results were in good agreement with the measured results. Hence the applicability of the calculation method in this study was confirmed. Form the results of this study it is shown that such duct expansion behaves as a sound attenuator which is effective in a wide frequency range.
収録刊行物
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- 日本機械学会論文集C編
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日本機械学会論文集C編 62 (593), 110-115, 1996
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282681305760000
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- NII論文ID
- 110002382274
- 130004231481
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- NII書誌ID
- AN00187463
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- ISSN
- 18848354
- 03875024
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- NDL書誌ID
- 3917278
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可