Design of elastic metamaterial plate and application in subway vibration isolation

被引：3
作者：
Wang, Qian [1 ]
Miao, Linchang [1 ]
Zheng, Haizhong [1 ]
Xiao, Peng [1 ]
Zhang, Benben [1 ]
机构：
[1] Southeast Univ, Sch Transportat, Nanjing 211189, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2024年 / 130卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Local resonance; Thick plate structure; Plane wave expansion method; Vibration reduction; Subway; WAVE-PROPAGATION; SCATTERING;
D O I：
10.1007/s00339-024-07691-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
While using the subway brings people convenient transportation, The low frequency vibration caused by metro is one of the factors that seriously threaten the physical and mental health of human beings and the working environment. Phononic crystals structure and elastic metamaterials have been favored for the past few years because of their excellent low frequency vibration control properties. In this paper, based on local resonance theory, an elastic metamaterial thick plate structure is designed to attenuate low frequency vibration. Through plane wave expansion method and numerical simulation, the dispersion curve and reduced vibration effect of the thick plate structure are simulated and analyzed, and it is proved that the elastic metamateric thick plate structure opens the bend wave band gap range of 36-110 Hz within the limits of lower frequency below 150 Hz. Finally, a kind of new lower frequency vibration isolation thick plate barrier is designed to minish the effect of low-frequency vibration, which has a potential engineering application foreground in the field of low-frequency vibration control and isolation of subway.
引用
收藏
页数：18
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