A collaborative enhancement design method of load-bearing and vibration isolation characteristics for honeycomb meta-materials

Abstract

A collaborative enhancement design method of load-bearing and vibration isolation characteristics for honeycomb meta-materials is proposed and validated by a novel quasi-chiral honeycomb meta-material (QCHM). The QCHM, which replaces the vertex of traditional diamond honeycomb mate-material (DHM) with chiral structure and introduces metal pins into the structure, is designed based on the proposed method. The static mechanical properties and vibration isolation capacities of the QCHM are analyzed through finite element method (FEM) and experiments. In comparison to conventional DHM, findings indicate that the QCHM surpasses in load-bearing capability and stiffness while exhibiting bandgaps with reduced initial frequency and expanded bandwidth. Additionally, the incorporation of particle damping further enhances the vibration attenuation and customization capacities of the QCHM. Overall, through the concept of assembly to establish a productive local resonance configuration, this investigation directs vibration energy towards the local structure and utilizes particle damping for energy dissipation, resulting in the development of honeycomb meta-materials featuring superior load-bearing capacity and broad low frequency bandgap characteristics. The proposed method offers a viable approach for optimizing the implementation of meta-materials in practical settings.