南华大学学报（自然科学版）2025，Vol.39Issue(3)：63-69,7.DOI:10.19431/j.cnki.1673-0062.2025.03.009
具有支撑框架的板型声学超材料隔声性能及热调控研究
Research on Sound Insulation Performance and Thermal Modulation of Plate-type Acoustic Metamaterials with Supporting Frames
王治樵 1张晓阳 2陈国豪1
作者信息
- 1. 南华大学 土木工程学院,湖南 衡阳 421001
- 2. 南华大学 数理学院,湖南 衡阳 421001
- 折叠
摘要
Abstract
To investigate the sound insulation performance and modulation of plate-type a-coustic metamaterials with supporting frameworks,the sound transmission loss and equiva-lent mass density of such acoustic metamaterial were investigated based on the finite ele-ment method,it also explored the control mechanism of thermal stress on the sound insula-tion characteristics of acoustic metamaterials.The sound transmission loss at different inci-dent angles and azimuth angles was calculated using the acoustic vibration coupling meth-od.The equivalent mass density was numerically retrieved using solid mechanics method to invert the sound transmission loss of metamaterial,and the results were compared with those obtained from the acoustic vibration coupling method to verify the accuracy.The in-fluence of thermal stress on sound transmission loss is studied using solid mechanics meth-od.The research shows that the proposed acoustic metamaterial achieves efficient sound insulation performance through the mechanism of mutual cancellation of surface radiation phases.The equivalent mass density obtained by approximate calculation using solid me-chanics methods can invert the sound transmission loss curve of metamaterial.Under dif-ferent thermal stress conditions,the acoustic metamaterial exhibits excellent tunable per-formance.关键词
支撑框架/声学超材料/有限元法/热应力Key words
support frames/acoustic metamaterial/finite element method/thermal stress分类
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王治樵,张晓阳,陈国豪..具有支撑框架的板型声学超材料隔声性能及热调控研究[J].南华大学学报（自然科学版）,2025,39(3):63-69,7.
