An innovative spider-like multi-origami metamaterial for tunable low-frequency vibration attenuation

Low-frequency vibration attenuation has always been a subject of intensive research and interest that attracted very much research attention. As an ancient aesthetic art, origami owns various applications in wide-ranging fields, including mathematics, physics, architecture, and mechanics. Most of the prior research in mechanics is limited to its mechanical properties and there exists very few that are related to the dynamics and wave propagation behavior. Edified by biomimetic spider designs, this paper proposes an innovative multi-origami metamaterial consists of Miura-origami bodies and Kresling-origami resonators. Specifically, the former is analogical to the feet of spiders while the latter can be viewed as the heads. The adequate tunability of bandgaps is then analyzed by deriving the dispersion relation through finite element simulation. The transmission spectrum of supercells are presented to illustrate the effectiveness in attenuating flexural wave propagation. Obvious transmission valley can be observed and the corresponding frequency range agrees well with unitcell bandgaps. Furthermore, several hybridized designs are proposed to broaden the wave attenuation width by superposition of distinct bandgaps of unitcell. This paper presents a comprehensive study on the low-frequency and superwide vibration attenuation of the proposed origami metamaterial. The outcome is useful for the advancement of the dynamics of origami-inspired metamaterials and offers valuable opportunities for other potential applications. © The Author(s), under exclusive licence to Springer Nature B.V. 2024