円形ダクト内の高周波数音波に対する膨張形消音器の効果

DOI Web Site Web Site 被引用文献1件 参考文献5件

書誌事項

タイトル別名
  • Effects of Expansion-Chamber Muffler on High-Frequency Sounds in Circular Duct.
  • エンケイ ダクトナイ ノ コウ シュウハスウ オンパ ニ タイスル ボウチョウガ

この論文をさがす

抄録

Sound attenuation in a circular duct through an expansion-chamber muffler was studied theoretically and experimentally for high-frequency sounds. In the calculation, the higher-order mode waves, the order of which is sufficiently high, are taken into account even if they are nonpropagating modes. In the frequency range where the plane wave theory is usually applicable, the calculated results using the method in this study were different from the calculated results using the plane wave theory. Upon comparsion with the measured values, the accuracy of the calculated results in this study was confirmed. We also examined the effects of the expansion-chamber muffler in the frequency range where the plane wave theory is not applicable and in the case that the higher-order mode wave enters the expansion-chamber muffler. In both cases, the calculated results were sufficiently consistent with the measured values. The method of calculation in this study is expected to be valid for the design of an expansion-chamber muffler for high-frequency sounds.

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (5)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ