含共振腔体板型声学超材料结构吸声性能研究
Research on the Sound Absorption Performance of Acoustic Metamaterial Structures with Resonant Cavity Plate
傅威 1燕群 1侯峰 1孙向洋1
作者信息
- 1. 中国飞机强度研究所,陕西 西安 710065
- 折叠
摘要
为改善传统板型结构的声学性能,设计一种新型含共振腔体板型声学超材料结构.研究结果表明:共振锤对该板型声学超材料的吸声性能几乎没有影响;共振腔夹层板带孔上下面板的厚度或者立方体周期性方形壁板结构的壁长、壁厚等对整体结构的声学效果具有明显的调节作用,随着这些参数的增大,结构整体的吸声峰会向低频移动.
Abstract
To improve the acoustic performance of traditional plate structures,a new type of acoustic metamaterial structure with resonant cavities is designed.The research results indicate that the resonant hammer has almost no effect on the sound absorption performance of the plate type acoustic metamaterial.The thickness of the upper and lower panels with holes in the resonant cavity sandwich panel,or the wall length and thickness of the periodic square wall panel structure of the cube,have a significant regulatory effect on the acoustic effect of the overall structure.As these parameters increase,the sound absorption peak of the structure moves towards low frequencies.
关键词
含共振腔体板型声学超材料/吸声系数/低频Key words
acoustic metamaterials with resonant cavity plates/sound absorption coefficient/low frequency引用本文复制引用
出版年
2024
NETL
NSTL
万方数据