Bandgap mechanisms and wave characteristics analysis of a three-dimensional elastic metastructure
International Journal of Structural Integrity
ISSN: 1757-9864
Article publication date: 29 June 2023
Issue publication date: 24 July 2023
Abstract
Purpose
In order to investigate the vibration reduction properties of a three-dimensional elastic metastructure with spherical cavities at low frequencies.
Design/methodology/approach
The bandgap characteristics of a three-dimensional elastic metastructure with spherical cavities are studied based on analytical and numerical approaches.
Findings
The results of both method revealed that the vibration of the vertexes masses is important for opening bandgaps. The fact that the big sphere cavity radius or short side length of the cube unit leads to a wider bandgap, is noteworthy.
Originality/value
This research provides theoretical guidance for realizing the vibration attenuation application of EMs in practical engineering.
Keywords
Acknowledgements
The authors would like to acknowledge the financial support from the National Natural Science Foundation of China (12172383), the Project of State Key Laboratory of High Performance Complex Manufacturing (ZZYJKT 2020) and the support from the CRRC Changchun Railway Vehicle Co. Ltd.
Citation
Li, Y., Wu, C., Peng, Y. and Jiang, X. (2023), "Bandgap mechanisms and wave characteristics analysis of a three-dimensional elastic metastructure", International Journal of Structural Integrity, Vol. 14 No. 4, pp. 564-582. https://doi.org/10.1108/IJSI-09-2022-0118
Publisher
:Emerald Publishing Limited
Copyright © 2023, Emerald Publishing Limited