Low frequency coupled bandgap regulation of staggered piezoelectric supercell beam

Wu, Wentao; Shan, Xiaobiao; Zhang, Huan; Sun, Chenghui; Du, Xuteng; Min, Zhaowei

doi:10.1016/j.ijmecsci.2024.109633

International Journal of Mechanical Sciences

2024

DOI: 10.1016/j.ijmecsci.2024.109633

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Low frequency coupled bandgap regulation of staggered piezoelectric supercell beam

Wentao Wu,

Xiaobiao Shan,

Huan Zhang

et al.

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2024

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Bandgap estimation and broadening of piezoelectric metamaterial beams undergoing longitudinal vibration

Wang,

Wang

2024

Smart Mater. Struct.

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In the realm of acoustic metamaterials, two crucial challenges have attracted significant interests: (1) How to predict the bandgap range fast and accurately? (2) How to achieve a broader bandgap at a relatively low cost? This paper addresses these challenges by analyzing a type of piezoelectric metamaterial beams comprising unit cells with sub-cells undergoing longitudinal vibration. The longitudinal bandgap estimation relationship based on the effective medium theory is proposed for the first time to estimate the bandgap range of piezoelectric metamaterial beams with unit cells containing sub-cells, and verified with the transfer matrix method. Moreover, novel methods are introduced to construct graded piezoelectric metamaterial beams by combining different sub-cells within a single cell. The proposed graded piezoelectric metamaterial beams occupy significantly less space than conventional graded counterparts and exhibit wider longitudinal bandgaps compared to uniform piezoelectric metamaterial beams.

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Bandgap estimation and broadening of piezoelectric metamaterial beams undergoing longitudinal vibration

Wang,

Wang

2024

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

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Low frequency coupled bandgap regulation of staggered piezoelectric supercell beam

Cited by 1 publication

References 82 publications

Bandgap estimation and broadening of piezoelectric metamaterial beams undergoing longitudinal vibration

Bandgap estimation and broadening of piezoelectric metamaterial beams undergoing longitudinal vibration

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