风送式喷雾机噪声测量及降噪分析  

Noise Measurement and Noise Reduction Analysis of Air-assisted Sprayers

作　　者：赖俊桂 占旭锐 李震 宋淑然 孙道宗 杨明欣 Lai Jungui;Zhan Xurui;Li Zhen;Song Shuran;Sun Daozong;Yang Mingxin(College of Electronic Engineering/Artificial Intelligence Academy,South China Agricultural University,Guangzhou 510642,China;Division of Citrus Machinery,China Agriculture Research System,Guangzhou 510642,China;Guangdong Engineering Research Center for Monitoring Agricultural Information,Guangzhou 510642,China;Guangdong Engineering Technology Research Center for Mountainous Orchard Machinery,Guangzhou 510642,China)

机构地区：[1]华南农业大学电子工程学院/人工智能学院,广州510642 [2]国家柑橘产业技术体系机械研究室,广州510642 [3]广东省农情信息监测工程技术研究中心,广州510642 [4]广东省山地果园机械创新工程技术研究中心,广州510642

出　　处：《农机化研究》2022年第7期228-233,共6页Journal of Agricultural Mechanization Research

基　　金：国家自然科学基金项目(31671591,31971797);广东省现代农业产业技术体系创新团队建设专项(2019KJ108);广州市科技计划项目(202002030245);大学生创新创业训练计划项目(201910564147)。

摘　　要：为了降低风送式喷雾机的气动噪声,利用声级计和振动噪声分析系统分别对风送式喷雾机的气动噪声和振动噪声情况展开测量,并在风送式喷雾机的流道内铺设降噪材料(丁晴橡胶、泡沫金属铝、泡沫金属镍)研究降低风机噪声效果。试验结果表明:5mm厚度的泡沫金属铝的降噪效果最好,在各个监测点监测的声压级均比未采取降噪措施时的风机声压级降低2dB。由此证实,通过在风机流道中铺设降噪材料能有效降低噪声。In order to reduce the aerodynamic noise of the air-assisted sprayers,the sound level meter and the vibration and noise analysis system are used to measure the aerodynamic noise and vibration noise of the air blower,and they are laid in the flow channel of the air blower.Noise reduction materials(NBR,foam metal aluminum,foam metal nickel)research the effect of reducing fan noise.The test results show that the 5mm thick aluminum foam has the best noise reduction effect.The sound pressure level monitored at each monitoring point is 2dB lower than the sound pressure level of the fan when noise reduction measures are not taken.Paving noise reduction materials in the road can effectively reduce noise.

关 键 词：风送式喷雾机 噪声测量 降噪分析 泡沫金属 

分 类 号：S491[农业科学—植物保护]