{"title":"Double-strip metamaterial for vibration isolation and shock attenuation","authors":"","doi":"10.1016/j.ijmecsci.2024.109686","DOIUrl":null,"url":null,"abstract":"<div><p>Mechanical metamaterials have emerged as a promising solution for shielding against environmental vibrations and shocks. However, most existing metamaterials provide a single functionality in mechanical protection, limiting their adaptability to complex working scenarios. To address this limitation, we propose a double-strip metamaterial (DSM) that achieves both vibration isolation and shock attenuation. The DSM employs quasi-zero stiffness for vibration isolation and snap-through buckling for shock energy dissipation. Buckling mode analysis reveals that the dual-functionality of the DSM arises from its diverse buckling behaviors, with theoretical models further quantifying its mechanical response. The DSM can effectively isolate the vibration above 13 Hz and reduce instantaneous shock by up to 58 %, as demonstrated by dynamic tests. This design strategy opens new avenues for comprehensive protection in engineering applications, spanning aerospace, automotive, and logistics.</p></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":null,"pages":null},"PeriodicalIF":7.1000,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Mechanical Sciences","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0020740324007276","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Mechanical metamaterials have emerged as a promising solution for shielding against environmental vibrations and shocks. However, most existing metamaterials provide a single functionality in mechanical protection, limiting their adaptability to complex working scenarios. To address this limitation, we propose a double-strip metamaterial (DSM) that achieves both vibration isolation and shock attenuation. The DSM employs quasi-zero stiffness for vibration isolation and snap-through buckling for shock energy dissipation. Buckling mode analysis reveals that the dual-functionality of the DSM arises from its diverse buckling behaviors, with theoretical models further quantifying its mechanical response. The DSM can effectively isolate the vibration above 13 Hz and reduce instantaneous shock by up to 58 %, as demonstrated by dynamic tests. This design strategy opens new avenues for comprehensive protection in engineering applications, spanning aerospace, automotive, and logistics.
期刊介绍:
The International Journal of Mechanical Sciences (IJMS) serves as a global platform for the publication and dissemination of original research that contributes to a deeper scientific understanding of the fundamental disciplines within mechanical, civil, and material engineering.
The primary focus of IJMS is to showcase innovative and ground-breaking work that utilizes analytical and computational modeling techniques, such as Finite Element Method (FEM), Boundary Element Method (BEM), and mesh-free methods, among others. These modeling methods are applied to diverse fields including rigid-body mechanics (e.g., dynamics, vibration, stability), structural mechanics, metal forming, advanced materials (e.g., metals, composites, cellular, smart) behavior and applications, impact mechanics, strain localization, and other nonlinear effects (e.g., large deflections, plasticity, fracture).
Additionally, IJMS covers the realms of fluid mechanics (both external and internal flows), tribology, thermodynamics, and materials processing. These subjects collectively form the core of the journal's content.
In summary, IJMS provides a prestigious platform for researchers to present their original contributions, shedding light on analytical and computational modeling methods in various areas of mechanical engineering, as well as exploring the behavior and application of advanced materials, fluid mechanics, thermodynamics, and materials processing.