噪声与振动控制2025，Vol.45Issue(3)：274-278,296,6.DOI:10.3969/j.issn.1006-1355.2025.03.043
变电站用新型吸声降噪装置梯度结构设计研究
Design of New Sound Absorption and Noise Reduction Device for Substations with Gradient Structure
摘要
Abstract
In order to obtain a new device that can effectively reduce the noise of substations(converter stations),this paper optimizes the sound absorption material with good acoustic performance,and uses the gradient structure to design the new noise reduction device.The results show that increasing bulk density and thickness can increase the low-frequency sound absorption coefficient of rock wool,basalt and aluminum silicate,while basalt and aluminum silicate still have high high-frequency sound absorption coefficient.By using Comsol to simulate the acoustic performance of different gradient structures,it was found that the sound pressure attenuation of 80+110 kg/m3 gradient structure aluminum silicate is the high-est,which reaches 28.1 dB.Finally,a new noise reduction device with panel+gradient structure aluminum silicate+sound insulation board was designed.After the weather resistance test,this device still has good acoustic performance and perfor-mance retention rate.The noise reduction coefficient is 0.8,the acoustic performance retention rate is 94%.关键词
声学/吸声材料/Comsol仿真/梯度结构/声学性能/耐候实验Key words
acoustics/sound-absorbing materials/Comsol simulation/gradient structure/acoustic performance/weath-erability test分类
建筑与水利引用本文复制引用
王河,李锦涛,孙桐,田一,田辰..变电站用新型吸声降噪装置梯度结构设计研究[J].噪声与振动控制,2025,45(3):274-278,296,6.基金项目
国网浙江省电力有限公司科技资助项目(5211DS23000NL) （5211DS23000NL）
