噪声与振动控制2019，Vol.39Issue(3)：235-240,249,7.DOI:10.3969/j.issn.1006-1355.2019.03.045
声阵列测试技术在微型泵降噪中的应用研究
Application of Acoustic Array Testing Technique in Miniature Pump Noise Reduction
白国军 1李军 1纪红刚 1袁国刚2
作者信息
- 1. 广东省珠海市质量计量监督检测所,广东 珠海 519060
- 2. 上海睿深电子科技有限公司,上海 201108
- 折叠
摘要
Abstract
As one of the key points of mechanical noise reduction, sound source localization effectively guides the solution of product noise problems. The noise of a miniature pressure water pump is relatively large. In order to effectively reduce the noise, combining sound array testing technique with mechanical noise reduction technique, a complete noise reduction optimization process is constructed. In the sound source localization process, the acoustic array is used to collect experimental data. The main noise source of the miniature pressure pump is localized by the sound intensity method and beamforming technique, which is in the middle of the sleeve. According to the experimental analysis of the flow field and the structure field, it is further verified that the pump body noise is mainly caused by the vibration of the sleeve structure. After accurately identifying the position of the noise source, a corresponding improvement method for reducing the bulk noise is proposed and verified. The results show that increasing the impedance of the shell and weakening the axial connection stiffness between the motor and the top cover and the bottom cover can effectively reduce the noise of the pressure pump.关键词
声学/降噪/声源识别/波束成形/压力水泵Key words
acoustics/ noise reduction/ sound source identification/ beamforming/ pressure pump分类
通用工业技术引用本文复制引用
白国军,李军,纪红刚,袁国刚..声阵列测试技术在微型泵降噪中的应用研究[J].噪声与振动控制,2019,39(3):235-240,249,7.
