Lightweight design and analysis of a spider web-inspired metamaterial for ultra-broad low-frequency bandgap

被引：0
|
作者：
Cheng, Shu-liang [1 ]
Zhang, Liu-chang [1 ]
Wang, Liang [2 ,3 ]
Xin, Ya-jun [4 ,5 ]
Sun, Yong-tao [2 ,3 ]
Zhang, Zhao-zhan [2 ,3 ]
Wang, An-shuai [2 ,3 ]
Wang, Shuo [2 ,3 ]
机构：
[1] Yanshan Univ, Hebei Key Lab Mech Reliabil Heavy Equipment & Larg, Qinhuangdao, Peoples R China
[2] Tianjin Univ, Dept Mech, Tianjin, Peoples R China
[3] Tianjin Univ, Tianjin Key Lab Nonlinear Dynam & Control, Tianjin, Peoples R China
[4] Yanshan Univ, Hebei Prov Engn Res Ctr Harmless Synergist Treatme, Qinhuangdao, Peoples R China
[5] Yanshan Univ, Key Lab Green Construct & Intelligent Maintenance, Qinhuangdao, Peoples R China
来源：
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2025年
基金：
中国国家自然科学基金;
关键词：
Low-frequency bandgap; light weight; vibration suppression; local resonance; elastic wave control; ELASTIC METAMATERIAL; WAVE-PROPAGATION; VIBRATION; BEAMS;
D O I：
10.1080/15376494.2025.2479584
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study presents a bio-inspired spiderweb-like metamaterial that achieves low-frequency broadband bandgaps by coupling Bragg scattering and local resonance mechanisms. Finite element analysis and Bloch's theorem reveal the bandgap formation mechanism, while embedding low-density metals enables similar bandgap performance to high-density metals, significantly reducing weight and breaking the mass density law. Additionally, by assembling different configurations within the periodic structure, the bandgap characteristics are leveraged to achieve elastic wave attenuation and directional wave transmission within specific frequency ranges. Vibration attenuation simulations confirm its potential for lightweight vibration-damping applications, providing a theoretical foundation for advanced metamaterial design.
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页数：22
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