噪声与振动控制2011，Vol.31Issue(3)：166-170,5.DOI:10.3969/j.issn.1006-1355-2011.03.039
多翼离心风机气动噪声的降噪
Noise Reduction and Test Research of Aerodynamic Noise for Multi-blade Centrifugal Fan
张胜利 1席德科 2李华星 1陆森林 2张仲寅1
作者信息
- 1. 西北工业大学航空学院,西安710072
- 2. 陕西省风机泵工程研究中心,西安710072
- 折叠
摘要
Abstract
In this paper, some schemes of reducing the aerodynamic noise are proposed for multi-blade centrifugal fans.Firstly, the vortex noise can be reduced mainly through the optimization of the geometric parameters of the impeller and volute and installing a rotation diffuser in the outlet of the impeller. Secondly, the discrete noise can be reduced mainly by changing the form of volute tongue. Finally, the experimental verification is carried out for the two improved fans, one is designed with optimization of inlet and outlet blade angles, and the other is installed a rotation diffuser in the outlet. The tests show that the noise of the improved fans is reduced obviously in comparison with the prototype.关键词
声学/多翼离心风机/气动噪声/降噪/实验研究/叶轮Key words
acoustics/ multi-blade centrifugal fan/ aerodynamic noise/ noise reduction/ test research/ impelle分类
机械制造引用本文复制引用
张胜利,席德科,李华星,陆森林,张仲寅..多翼离心风机气动噪声的降噪[J].噪声与振动控制,2011,31(3):166-170,5.
