Vibration reduction based on bionic elytra structure

Abstract

Undesirable shock vibrations are widely distributed in the mechanical field. Shock damping through bionic structures is a more effective method for vibration suppression. The Elytra structure of the ladybug has the characteristics of buffering and vibration reduction, and it is an efficient structure that can realize bionic vibration reduction. Based on the analysis of the vibration absorption principle of the Elytra structure, this paper adopts the symmetric structure and frictional energy dissipation method to design an Elytra structure -like an initial circular beam damping structure. To explore the effect of different features on the vibration reduction performance, the bionic structure is studied by simulation analysis and experimental methods. In order to study the effect of the bionic structure on single and periodic vibrations, mechanical simulation analysis is performed using single impact and periodic continuous vibrations of dropping objects, and an experimental setup is built to collect the corresponding vibration signals, so as to analyze the performance of the vibration reduction structure. The results show that the designed bionic sheath-fin vibration reduction structure not only has a buffering and energy absorption effect on the instantaneous impact but also has a good suppression effect on the low-frequency continuous vibration.