Control of sonic metamaterial stopband

Murray, ARJ, Bell, James ORCID: https://orcid.org/0000-0001-8371-9851, Hendry, E, Summers, IR, Sambles, JR and Hibbins, AP 2012. Control of sonic metamaterial stopband. Presented at: META'12, Paris, 19-22 April 2012. Proceedings: 3rd International Conference on Metamaterials, Photonic Crystals and Plasmonics.

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Abstract

The acoustic transmittance of two closely spaced rigid plates perforated with a square array of circular holes is studied both experimentally and numerically. The system exhibits a band of acoustic attenuation originating from hybridization between a two-dimensional resonance in the gap between the plates, and pipe modes in the holes. Misalignment of the holes in either one or both lateral dimensions shifts the centre frequency of the stop band to maintain the conditions required for zero transmission.

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Date Type:	Publication
Status:	Published
Schools:	Optometry and Vision Sciences
ISSN:	2429-1390
Last Modified:	17 Oct 2023 14:30
URI:	https://orca.cardiff.ac.uk/id/eprint/162663

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