 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12804 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8044
|
| In English (Mech. Solids): | | 4760 |
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| Zhenkun Guo, Yuhua Wei, Ting Dong, Xinhua Chen, and Guoqing Jiang, "Ultra-Low-Frequency Vibration Attenuation Characteristics of Multi-Span Metamaterial Dual-Beam Structures," Mech. Solids. 59 (1), 431-444 (2024) |
| Year |
2024 |
Volume |
59 |
Number |
1 |
Pages |
431-444 |
| DOI |
10.1134/S0025654423602227 |
| Title |
Ultra-Low-Frequency Vibration Attenuation Characteristics of Multi-Span Metamaterial Dual-Beam Structures |
| Author(s) |
Zhenkun Guo (Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles, Beijing University of Civil Engineering and Architecture, Beijing, 102616 China, guozhenkun@bucea.edu.cn)
Yuhua Wei (Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles, Beijing University of Civil Engineering and Architecture, Beijing, 102616 China, 2108020022007@stu.bucea.edu.cn)
Ting Dong (School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081 China, dongtingB2016@163.com)
Xinhua Chen (Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles, Beijing University of Civil Engineering and Architecture, Beijing, 102616 China, chenxinhua@bucea.edu.cn)
Guoqing Jiang (School of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, 310018 China, jiangguoqing@zstu.edu.cn) |
| Abstract |
In this work, a novel multi-span metamaterial dual-beam (MMDB) structure is proposed
for the effective suppression of ultra-low-frequency vibrations in beam structures. The MMDB is
composed of a periodic array of units, with each simply supported unit including beams at the top and
bottom, and a spring-mass-spring resonator connecting two beams. For analyzing the dynamic behavior of the MMDB, the spectral element method (SEM) is utilized to establish a dynamic model.
A comparative analysis is conducted with a traditional metamaterial dual-beam model, highlighting
the advantages of the proposed MMDB. The vibration transmittance of the MMDB under base excitation is analyzed, during which the bandgap frequency beginning from zero is generated. The MMDB
is further modeled by the finite element method (FEM), and the simulation results of transmittance
agree well with those obtained through SEM, validating the effectiveness of the utilized approach. The
band structure of the MMDB structure is further obtained and local resonance and Bragg bandgaps
are simultaneously found. Subsequently, parameter study is conducted to investigate the effects of
material and geometry parameters on the bandgap characteristics of the MMDB. This work provides
valuable guidelines for the design of multi-layer beam structures aimed at efficiently suppressing vibrations within the ultra-low-frequency range. |
| Keywords |
multi-span metamaterial dual-beam, ultra-low-frequency, spectral element method, local resonance bandgap, Bragg bandgap |
| Received |
01 November 2023 | Revised |
23 January 2024 | Accepted |
21 February 2024 |
| Link to Fulltext |
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