一种基于双共振结构的变电站隔声材料  

A Substation Sound Insulation Material Based on Dual Resonance Structure

作　　者：付波[1] 杜军亚 范秀香[1] FU Bo;DU Jun-ya;FAN Xiu-xiang(School of Electrical and Electronic Engineering,Hubei University of Technology,Wuhan 430068,China)

机构地区：[1]湖北工业大学电气与电子工程学院,武汉430068

出　　处：《科学技术与工程》2024年第28期12078-12085,共8页Science Technology and Engineering

基　　金：湖北省重点研发计划(2021BAA193)。

摘　　要：为应对变电站噪声防治的环境挑战,提出一种新型的声学超材料作为隔声构件。该构件由弹性薄膜、质量环和Helmholtz腔组成的双共振结构构成。通过COMSOL仿真软件,采用声固耦合有限元模型方法研究其在10~1000 Hz频段内的隔声性能和振动模态。结果表明:该超材料能有效阻隔噪声,尤其是在低频范围内表现出色,克服了传统隔声材料在低频噪声控制方面的局限。最后通过阻抗管隔声性能实验对该构件的传声损失在35~1000 Hz频段进行了测试验证。可见,这种新型声学超材料为变电站噪声防治提供了一种有效的解决方案。Addressing the environmental challenge of noise control in substations,a novel type of acoustic metamaterial was proposed as a sound insulation component.The component,which consisted of an elastic film,a mass ring,and a Helmholtz cavity,was structured with a dual-resonance configuration.It was investigated for its sound insulation performance and vibration modes within the frequency range of 10 to 1000 Hz using COMSOL simulation software with a solid-acoustic coupled finite element model method.The results show that the metamaterial effectively blocks noise,especially in the low-frequency range,overcoming the limitations of traditional sound insulation materials in controlling low-frequency noise.The sound transmission loss of the component in the frequency range of 35 to 1000 Hz was tested and verified through impedance tube sound insulation performance experiments.It is concluded that this new type of acoustic metamaterial offers an effective solution for noise control in substations.

关 键 词：变电站降噪 声学超材料 有限元分析 低频 

分 类 号：TB535[理学—物理]