| 利用声学共振降低离心风机噪声的研究 |
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| 引用本文： | 朱之墀,李永锡,方守学,詹蒗,刘光华. 利用声学共振降低离心风机噪声的研究[J]. 清华大学学报(自然科学版), 1988, 0(5) |
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| 作者姓名： | 朱之墀 李永锡 方守学 詹蒗 刘光华 |
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| 作者单位： | 工程力学系(朱之墀，李永锡，方守学，詹蒗)，工程力学系(刘光华) |
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| 摘 要： | 对一个实用离心风机用实验系统地研究了在不同风舌间隙条件下，声学共振器的空 穴长度、穿孔率和孔径对风机噪声及气动力性能的影响，得到了良好的隆噪效果。还提 出一种解析模型来建立共振频率与共振器几何参数的关系式，该式己为现有的一些实验 结果所证实。
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| 关 键 词： | 离心风机 噪声 噪声控制 共振器 |
Investigation in Reduction of Centrifugal Fan Noise by use of Resonator |
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| Zhu Zhichi,Li Yongxi,Fang Shouxue,Zhan Lang,Liu Guanghua. Investigation in Reduction of Centrifugal Fan Noise by use of Resonator[J]. Journal of Tsinghua University(Science and Technology), 1988, 0(5) |
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| Authors: | Zhu Zhichi Li Yongxi Fang Shouxue Zhan Lang Liu Guanghua |
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| Affiliation: | Department of Engineering Mechanics |
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| Abstract: | Experimental investigation in the noise and aerodynamic performance of a commercially produced centrifugal fan with resonator was completed for different cavity length, porosity and hole diameter of resonators in the case of different cutoff clearance. Several conclusions about effective noise reduction were obtained. An analytical model is presented to formulate the relation between the resonance frequency and geometric parameters of the resonator. The formula deduced by the model was verified in some experiments. |
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| Keywords: | centrifugal fan noise noise control resonator |
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