| 离心压缩机叶片扩压器噪声的理论和实验研究 |
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| 引用本文： | 苏莫明,赵兴艳,胡春波. 离心压缩机叶片扩压器噪声的理论和实验研究[J]. 兰州理工大学学报, 1999, 25(2): 1 |
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| 作者姓名： | 苏莫明 赵兴艳 胡春波 |
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| 作者单位： | 1. 甘肃工业大学,流体机械及流体动力系,甘肃,兰州,730050
2. 西安交通大学,陕西,西安,710049 |
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| 摘 要： | 利用随机脉动调制理论，建立了离心压缩机谐波噪声和宽频噪声的通用计算模型，对叶片扩压器的声源及其辐射理论进行了深入的理论研究．还对离心压缩机整机声功率级及声功率频谱进行了测量，计算结果与实验结果比较吻合．利用本文提出的方法可以预测离心压缩机的噪声频谱，为设计低噪声离心压缩机、通风机提供了理论依据．
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| 关 键 词： | 离心压缩机 叶片扩压器 叶片 脉动力 噪声 |
| 文章编号： | 1000-5889（1999）02-0041-05 |
| 修稿时间： | 1998-03-05 |
Theoretical and experimental investigation of noise in the vaned diffusor of centrifugal compressor |
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| SU Mo-ming,ZHAO Xing-yan,HU Chun-bo. Theoretical and experimental investigation of noise in the vaned diffusor of centrifugal compressor[J]. Journal of Lanzhou University of Technology, 1999, 25(2): 1 |
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| Authors: | SU Mo-ming ZHAO Xing-yan HU Chun-bo |
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| Abstract: | Using the random pulse modulation theory, this paper proposes a general model for calculating harmonic and broadband noise of the centrifugal compressor, and presents theoretical investigation of the acoustic radiation of vaned diffusor. The results of the calculation are in good agreement with those of the experiment, in which the sound power level and its spectrum are measured. The method presented by this paper can be used to predict the noise spectrum in the centrifugal compressor vaned diffusor, so as to design a centrifugal compressor and ventilator with low noise. |
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| Keywords: | centrifugal compressor vaned diffusor pulsating force vane noise |
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