| 轴流叶轮尾涡脱落宽频噪声计算模型研究 |
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| 引用本文： | 伍先俊,朱石坚,李志明. 轴流叶轮尾涡脱落宽频噪声计算模型研究[J]. 噪声与振动控制, 2005, 25(4): 58-60 |
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| 作者姓名： | 伍先俊 朱石坚 李志明 |
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| 作者单位： | 1. 海军工程大学,振动与噪声研究所,武汉,430033
2. 武汉理工大学,武汉,430070 |
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| 摘 要： | 对低速轴流风机尾涡宽频噪声的计算模型进行研究,提出了叶片尾涡脱落噪声声功率与掠向角余弦值的五次方成正比的结论,基于高斯分布函数建立尾涡宽频脱落噪声频谱的计算方法,并对以上结论和计算方法进行了实验验证.
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| 关 键 词： | 声学 轴流叶轮 紊流 宽频噪声 |
| 文章编号： | 1006-1355(2005)04-0058-03 |
| 收稿时间： | 2004-11-29 |
| 修稿时间： | 2004-11-29 |
Studies on the Blade Tail Edge Vortex Shedding Broadband Noise Calculation Model of Axial Flow Fan |
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| WU Xian-jun,ZHU Shi-jian,LI Zhi-ming. Studies on the Blade Tail Edge Vortex Shedding Broadband Noise Calculation Model of Axial Flow Fan[J]. Noise and Vibration Control, 2005, 25(4): 58-60 |
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| Authors: | WU Xian-jun ZHU Shi-jian LI Zhi-ming |
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| Abstract: | The model to calculate the blade tail edge vortex shedding broadband noise of low speed axial flow fan is studied, Conclusion is got that sound power of the tail edge vortex noise is direct proportion to the quintuple of the cosine value of the blade edge sweep angle. A model based on the gauss distributing formula is put forward which is suitable for spectrum calculation. Experiments are done for validation and good fitness is observed. |
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| Keywords: | acoustics axial flow fan turbulence flow broadband noise |
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