Inerter-based elastic metamaterials for band gap at extremely low frequency

被引：12
|
作者：
Jamil, Faisal [1 ]
Chen, Fei [1 ]
Deng, Bolei [2 ,3 ]
Parker, Robert G. [1 ]
Wang, Pai [1 ]
机构：
[1] Univ Utah, Dept Mech Engn, Salt Lake City, UT 84112 USA
[2] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA
[3] MIT, Dept Mech Engn, Cambridge, MA 02139 USA
来源：
EXTREME MECHANICS LETTERS | 2022年 / 56卷
关键词：
Elastic metamaterials; Inerter; Ultra-low frequency; Band gap; Vibration mitigation; VEHICLE SUSPENSION SYSTEM; DESIGN; PLATES;
D O I：
10.1016/j.eml.2022.101847
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
We reveal the unique and fundamental advantage of inerter-based elastic metamaterials by a com-parative study among different configurations. When the embedded inerter is connected to the matrix material on both ends, the metamaterial shows definite superiority in forming a band gap in the ultra -low frequency -equivalently the ultra-long wavelength -regime, where the unit cell size can be four or more orders of magnitude smaller than the operating wavelength. In addition, our parametric studies in both one and two dimensions pave the way towards designing next-generation metamaterials for structural vibration mitigation.(c) 2022 Elsevier Ltd. All rights reserved.
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页数：6
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