Tunable and broadband asymmetric sound absorptions with coupling of acoustic bright and dark modes

We propose a strategy for constructing an asymmetric sound absorber by coupling two mutually tuned dark and bright modes. The subsequent requirement is that the dark mode must be strongly dissipative to consume sound energy, whereas the bright mode exhibit weak damping and be characterized as an eff...

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Veröffentlicht in:Journal of sound and vibration 2020-08, Vol.479, p.115371, Article 115371
Hauptverfasser: Long, Houyou, Liu, Chen, Shao, Chen, Cheng, Ying, Tao, Jiancheng, Qiu, Xiaojun, Liu, Xiaojun
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Sprache:eng
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