Research On Vibration Reduction Of Regular Hexahedral Honeycomb Structure With Periodic Strut

Abstract

The honeycomb cavity periodic strut structure with 3D printing technology can achieve the purpose of lightweight and vibration reduction on the basis of ensuring the stiffness and strength of the bar. In this paper, the stiffness characteristics and antivibration (resonance / flutter) ability of solid strut and regular hexahedral honeycomb periodic strut are studied by finite element analysis. The results show that the maximum deformation and maximum stress of honeycomb periodic strut are greater than that of solid strut. The maximum deformation of two kinds of rods occurs at the top of the rod, and the maximum stress of solid strut occurs at the root of the rod. The maximum stress of the honeycomb periodic strut occurs at the root of the internal honeycomb structure near the fixed end. The first six frequencies of the regular hexahedral honeycomb periodic strut are lower than those of the solid strut. The first five and seventh modes of the regular hexahedral honeycomb periodic strut are the same. The sixth, eighth, ninth and tenth modes of deformation are different.