三维弹性元结构的带隙机制及波特性分析

IF 3.5 Q1 ENGINEERING, MULTIDISCIPLINARY

International Journal of Structural Integrity Pub Date : 2023-06-29 DOI:10.1108/ijsi-09-2022-0118

Ying-Lin Li, Chenwei Wu, Yong-mei Peng, Xudong Jiang

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引用次数: 0

摘要

目的研究球面空腔三维弹性元结构的低频减振性能。基于解析和数值方法，研究了具有球腔的三维弹性元结构的带隙特性。两种方法的结果表明，顶点质量的振动对打开带隙很重要。值得注意的是，大的球腔半径或立方体单元的短边长导致更宽的带隙。独创性/价值本研究为实现电磁技术在实际工程中的减振应用提供了理论指导。

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Bandgap mechanisms and wave characteristics analysis of a three-dimensional elastic metastructure

PurposeIn order to investigate the vibration reduction properties of a three-dimensional elastic metastructure with spherical cavities at low frequencies.Design/methodology/approachThe bandgap characteristics of a three-dimensional elastic metastructure with spherical cavities are studied based on analytical and numerical approaches.FindingsThe 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/valueThis research provides theoretical guidance for realizing the vibration attenuation application of EMs in practical engineering.

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来源期刊

International Journal of Structural Integrity ENGINEERING, MULTIDISCIPLINARY-

CiteScore

5.40

自引率

14.80%

发文量