A decoupling-design strategy for high sound absorption in subwavelength structures with air ventilation

Ruojun Zhang, Guibo Wang, Xiaoming Zhou*, Gengkai Hu

*此作品的通讯作者

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摘要

A strategy based on the decoupling design of two elementary structures, both made of coiled-up channels, is proposed. One channeling structure is designed for blocking sound transmission, while the other element is used for absorbing sounds at low-transmission frequencies. Based on this strategy, the sound-absorbing sample with air ventilation is fabricated and its high-absorption capability is demonstrated experimentally. The expanding of sound absorption bandwidth by combining different absorptive channels into the sample structure is also demonstrated. The proposed method provides a new route towards broadband high sound absorption in ventilated structures.

源语言英语
文章编号033602
期刊JASA Express Letters
2
3
DOI
出版状态已出版 - 1 3月 2022

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Zhang, R., Wang, G., Zhou, X., & Hu, G. (2022). A decoupling-design strategy for high sound absorption in subwavelength structures with air ventilation. JASA Express Letters, 2(3), 文章 033602. https://doi.org/10.1121/10.0009919