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 |
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文章编号 | 033602 |
期刊 | JASA Express Letters |
卷 | 2 |
期 | 3 |
DOI | |
出版状态 | 已出版 - 1 3月 2022 |
指纹
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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