| 暗声学超材料型充液管道的低频消声特性 |
| |
| 引用本文： | 沈惠杰,郁殿龙,汤智胤,苏永生,李雁飞,刘江伟. 暗声学超材料型充液管道的低频消声特性[J]. 物理学报, 2019, 0(14): 314-323 |
| |
| 作者姓名： | 沈惠杰 郁殿龙 汤智胤 苏永生 李雁飞 刘江伟 |
| |
| 作者单位： | 海军工程大学动力工程学院;国防科技大学装备综合保障技术重点实验室 |
| |
| 基金项目： | 国家自然科学基金(批准号:51705529,11872371)资助的课题~~ |
| |
| 摘 要： | 充液管道低频声的有效吸收和消减一直是一个颇具挑战性的难题.受声学超材料理论启发,本文设计了一种沿管道轴向方向等距布置小体积声学短管的充液周期管道系统.该管道系统可以诱发声波传播超宽低频带隙的产生,使得声波在带隙频率范围内传播将被显著衰减,乃至无法透射,近乎被完全吸收,称为暗声学超材料型充液管道.进一步,揭示了暗声学超材料型充液管道中声传播带隙的产生机理、参数影响规律,研究了该波导管对低频噪声的降噪特性,初步探讨了工程实际可实现的暗声学超材料型充液管道的结构实现形式.研究成果有望为管道低频噪声控制提供一条新的技术途径.
|
| 关 键 词： | 暗声学超材料 充液管道 噪声控制 声波带隙 |
Characteristics of low-frequency noise elimination in a fluid-filled pipe of dark acoustic metamaterial type |
| |
| Shen Hui-Jie,Yu Dian-Long,Tang Zhi-Yin,Su Yong-Sheng,Li Yan-Fei,Liu Jiang-Wei. Characteristics of low-frequency noise elimination in a fluid-filled pipe of dark acoustic metamaterial type[J]. Acta Physica Sinica, 2019, 0(14): 314-323 |
| |
| Authors: | Shen Hui-Jie Yu Dian-Long Tang Zhi-Yin Su Yong-Sheng Li Yan-Fei Liu Jiang-Wei |
| |
| Affiliation: | (College of Power Engineering,Naval University of Engineering,Wuhan 430033,China;Laboratory of Science and Technology on Integrated Logistics Support,National University of Defense Technology,Changsha 410073,China) |
| |
| Abstract: | Shen Hui-Jie;Yu Dian-Long;Tang Zhi-Yin;Su Yong-Sheng;Li Yan-Fei;Liu Jiang-Wei(College of Power Engineering,Naval University of Engineering,Wuhan 430033,China;Laboratory of Science and Technology on Integrated Logistics Support,National University of Defense Technology,Changsha 410073,China) |
| |
| Keywords: | dark acoustic metamaterials fluid-filled pipe noise control acoustic band gap |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
