https://doi.org/10.1140/epjs/s11734-025-01559-2
Regular Article
Design and performance investigation on a novel QZS metamaterial featuring concave hexagonal framework and double-cosine beams
1
College of Mechanical Engineering, Zhejiang University of Technology, 310023, Hangzhou, China
2
Hangzhou Goldfish Electrical Appliances Group Company Limited, 310023, Hangzhou, China
3
Key Laboratory of Noise and Vibration, Institute of Acoustics, Chinese Academy of Sciences, 100190, Beijing, China
a
hpwu@zjut.edu.cn
b
55796666@qq.com
c
zhanghan@mail.ioa.ac.cn
Received:
13
January
2025
Accepted:
27
February
2025
Published online:
13
March
2025
Effective vibration isolation is essential for ensuring the performance and longevity of engineering systems, yet traditional isolators often struggle to balance load-bearing capacity with low-frequency isolation. This study addresses these limitations by proposing a novel quasi-zero stiffness (QZS) metamaterial unit cell combining a concave hexagonal (CH) framework and double-cosine beams (DCB), optimized using genetic algorithms (GA) and finite element analysis (FEA). Fabricated with thermoplastic polyurethane (TPU) for its superelastic properties, the unit cell demonstrates exceptional low-frequency vibration isolation, superior energy absorption, and adaptability through series and parallel configurations to meet diverse operational needs. Experimental results closely aligned with simulation predictions, confirming the structure’s reliability and scalability. This work provides a scalable approach to designing QZS metamaterials, advancing the state of vibration isolation and energy absorption technology.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
