Coherent coupling based meta-structures for high acoustic absorption at 220–500 Hz frequency
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DOI: 10.1016/j.apacoust.2021.108181
Abstract: Abstract Finite size of unit cell (thickness 50 mm , area 100mm × 100mm ) presents significant challenge in achieving an absorption coefficient higher than 0.8 under the 220 Hz–500 Hz frequency. The main difficulty lies in… read more here.
Keywords: 500 frequency; absorption; 220 500; coherent coupling ... See more keywords