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    题名: 討論500 and 1000 Hz 時具直角/斜角支道長形封閉空間之聲波傳播研究
    其它题名: Study on Sound Propagation of Long Enclosures with a Vertical/Inclined Branch at 500 and 1000 Hz 1/3 Octave Bands
    作者: 劉嘉俊;盧博堅;陳俊成
    贡献者: 淡江大學水資源及環境工程學系
    关键词: Sound propagation
    日期: 2006-11
    上传时间: 2014-02-12 20:51:04 (UTC+8)
    摘要: It is of interest to investigate the sound propagation of long enclosures with a vertical/inclined branch, since there may exist some branches inside the long enclosures in practical applications, such as in high-speed railway tunnels. However, much research on sound propagation of long enclosures available is concerning the straight long enclosures. In this paper, the sound pressure level (SPL) attenuation, early decay time (EDT), and reverberation time (RT30) of the long enclosures with vertical/inclined branches have been studied by the experimental results from the constructed physical scale models, and which also are compared with the straight long enclosure. This experimental investigation gives interesting results on the behavior of sound propagation of the long enclosures with vertical/inclined branches. Compared with the straight long enclosure, the inclined branch makes more difference to the SPL, EDT and RT30 of the long enclosure than the vertical branch though both kinds of branches have the equivalent volume.
    關聯: 中華民國音響學會2006年第十九屆學術研討會論文集=Proceedings of 19th Symposium of Acoustical Society of the Republic of China,12頁
    显示于类别:[水資源及環境工程學系暨研究所] 會議論文

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