Bandgap adjustment of a sandwich-like acoustic metamaterial plate with a frequency-displacement feedback control method
Jianing Liu,
Jinqiang Li,
Ying Wu
Abstract:Several types of acoustic metamaterials composed of resonant units have been developed to achieve low-frequency bandgaps. In most of these structures, bandgaps are determined by their geometric configurations and material properties. This paper presents a frequency-displacement feedback control method for vibration suppression in a sandwich-like acoustic metamaterial plate. The band structure is theoretically derived using the Hamilton principle and validated by comparing the theoretical calculation results wi… Show more
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