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題名 | The Study of Acoustic Transmission Loss of Silencer by Using One-Duct Simulation=消音箱透過損失的單管模擬研究 |
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作者 | 陳國在; 陳永祥; 林坤裕; Chen, Kuo-tsai; Chen, Yung-hsiang; Lin, Kuen-wuh; |
期刊 | 國立臺灣大學工程學刊 |
出版日期 | 19980200 |
卷期 | 72 1998.02[民87.02] |
頁次 | 頁61-70 |
分類號 | 444.6 |
語文 | eng |
關鍵詞 | 消音箱; 透過損失; 單管模擬; Silencer; Transmission loss; One-duct simulation; |
中文摘要 | 本文藉解析單管消音箱之音響性能,以針對一般常用消音箱透過損失進行模擬研究,以探討此模擬研究之可行性。因此本文研究包括單管消音箱之音響介入衰減性能計算、其透過損失與常用多管消音箱透過損失之量測,以及上述兩種量測值的比較等三部份。研究結果顯示單管消音箱與常用消音箱,此兩者的透過損失測定值,於頻率範圍 125∼ 4000Hz,除了500Hz附近出現3.7分貝之最大差異值外,均甚為吻合。至於單管消音箱之音響吸收衰減計算值與上述兩者之透過損失測定值於800Hz以上之頻率時 (含800Hz),亦具較高之吻合程度。 |
英文摘要 | This paper is to study the acoustic transmission loss of a generally used silencer by using a one-duct silencer simulation. Therefore, the study in this paper includes the calculation of the acoustic attenuation of a one-duct silencer, the measurements on the transmission loss for the two silencers as described, and the comparisons among the above three ones. The result of this study shows that the measured transmission loss of a usually used silencer agrees fairly with that of a one-duct silencer, their maximum discrepany is 3.7dB at 500Hz. Meanwhile, the calculated attenuation of the used one-duct silencer also agrees fairly above 800Hz with the measured transmission losses of both silencers. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。