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請使用永久網址來引用或連結此文件:
http://ir.ncue.edu.tw/ir/handle/987654321/18325
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| 題名: | A Ring Silencer Design for Reducing Noise of Axial Fan |
| 作者: | Wu, Jian-Da;Bai, Mingsian R. |
| 貢獻者: | 車輛科技研究所 |
| 關鍵詞: | Ring silencer;Axial fan;Fan noise;Helmholtz resonator;Electro acoustic |
| 日期: | 2003
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| 上傳時間: | 2014-04-29T07:26:13Z
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| 出版者: | World Scientific Publishing Company |
| 摘要: | In this paper, a ring silencer design for reducing the noise of axial fans is presented. The noise sources on axial fans are usually caused by the fluctuating pressure distribution on the surface of fan blade. Most of the sources are near the trailing edge of blades or boundary region of blades. The ideation of proposed design is based on the principle of Helmholtz resonator for reducing the noise around the fan. The electro-acoustic analogy of this design is presented and simply discussed. Experimental measurement is carried out to evaluate the proposed design for reducing the axial fan noise. The result of experiment indicated that the ring silencer achieved 17 dB in blade passing frequency and 10 dB in other broadband frequency of power spectrum level. |
| 關聯: | Fluctuation and Noise Letters, 3(3): 259-264 |
| 顯示於類別: | [車輛科技研究所] 期刊論文
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