Vibration control of flexural waves in thin plates by 3D-printed metasurfaces

Zhang, Jun; Zhang, Xuebin; Xu, Fulai; Ding, Xin; Deng, Mingxi; Hu, Ning; Zhang, Chuanzeng

doi:10.1016/j.jsv.2020.115440

Cited by 56 publications

(11 citation statements)

References 42 publications

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“…Therefore, according to the dispersion curve of the Lamb wave, the wavenumber 1 k of the Lamb wave at a specific frequency thickness product can be obtained, and the wavenumber 2 k in the beam needs to be calculated by the following formula [30] :…”

Section: Gsl and Plate-beam Elastic Wave Propagation Theorymentioning

confidence: 99%

A helical elastic wave metasurface based on GSL

Yang

Feng

et al. 2022

J. Phys.: Conf. Ser.

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Based on the Generalized Snell’s Law (GSL), combined with the elastic wave propagation theory in the thin plate and beam structure, a new type of elastic wave metasurface is constructed. The metasurface structure realizes the design of equal gradient of transmitted wave phase according to the difference of the length of different helical curved beams. Through this structure, the transmission wavefront of the Lamb wave in the thin plate is controlled, and acoustic phenomena such as negative refraction and asymmetric transmission are realized, which proves the accuracy of the GSL theory and the feasibility of the structure. And on this basis, the use of the design of symmetrical attachment to the metasurface solves the problem of destroying the plate structure in the traditional elastic wave metasurface, and provides an effective new idea for the elastic wave metasurface.

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Section: Gsl and Plate-beam Elastic Wave Propagation Theorymentioning

confidence: 99%

A helical elastic wave metasurface based on GSL

Yang

Feng

et al. 2022

J. Phys.: Conf. Ser.

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“…The phase shift of elastic waves can be tuned mainly by changing their velocities through a resonant or non-resonant way. Usually, the former can be achieved by introducing resonant units such as pillars or columns [13][14][15][16][17][18][19][20], zigzag units [21][22][23][24][25], and blocks [26][27][28][29][30] into the structure. The latter, however, can be realized by grooves [31], notched units [32], strips [33,34] or composite strips [35,36], etc.…”

Section: Introductionmentioning

confidence: 99%

“…Cao et al [20] also discussed the identical pillared resonators with a random arrangement. In-plate [21][22][23][24] and out-of-plate [25] zigzag units were proposed to design metasurfaces for source illusion, refraction, focus, asymmetric transmission and ultrathin waveguide of A0 Lamb waves. Changing the sizes of resonant blocks added to beams was also able to manipulate the phase of the transmitted flexural wave [26].…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable flexural waves manipulation by broadband elastic metasurface

Yuan

Chen

et al. 2022

Mechanical Systems and Signal Processing

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“…Elastic metamaterials and phononic crystals are artificial engineered materials with band gaps capable of suppressing wave propagation [1][2][3][4][5][6][7]. They have attracted significant interest due to their capabilities of tailoring, focusing, or guiding elastic waves.…”

Section: Introductionmentioning

confidence: 99%

Linking Time-Domain Vibration Behaviors to Spatial-Domain Propagating Waves in a Leaf-like Gradient-Index Phononic Crystal Lens

et al. 2021

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It is known that a propagating wave at a certain spatial point can be decomposed into plane waves propagating at different angles. In this work, by designing a gradient index phononic crystal lens (GRIN PCL) with transverse-continuous leaf-like unit cells, we theoretically and experimentally show that the spatial-domain propagating waves in finite periodic structures can be linked to their time-domain vibration behaviors. The full-field instantaneous focusing behaviors of Lamb waves in the proposed leaf-like GRIN PCL give an example of the wave-vibration linkage in finite periodic structures while allowing a certain complexity. The conclusion in this paper can help one skip iterative time-consuming finite element analysis (e.g., time-stepping solutions) to avoid possible numerical instabilities occurred in calculating transient wave field on practical finite metamaterials or phononic crystals having unit cells with complicated configurations.

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Vibration control of flexural waves in thin plates by 3D-printed metasurfaces

Cited by 56 publications

References 42 publications

A helical elastic wave metasurface based on GSL

A helical elastic wave metasurface based on GSL

Reconfigurable flexural waves manipulation by broadband elastic metasurface

Linking Time-Domain Vibration Behaviors to Spatial-Domain Propagating Waves in a Leaf-like Gradient-Index Phononic Crystal Lens

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