塔型折纸结构设计与能量吸收特性分析

Design of Tower Origami Structure and Analysis of Energy Absorption Characteristics

为了探究能量吸收特性更加优异的折纸结构,通过对传统扭转塔折纸结构进行改进设计,提出一种具有压扭耦合特性的塔型折纸结构。运用数值仿真分析方法对塔型折纸结构进行准静态压缩实验,结果表明该塔型折纸结构具有峰值压缩力低、平台长、扰动小的能量吸收特性。通过改变结构的内圆与外圆半径比、扭转角度、外圆半径与高度比、厚度几何参数,获得几何参数对比吸能、峰值压缩力、压缩力效率等吸能性能的影响规律。研究结果对折纸结构优化设计与结构能量吸收特性分析具有一定的参考价值。

To explore the origami structure with better energy absorption characteristics,this paper proposed a tower origami structure with pressure-torsion coupling characteristics by improving the design of the traditional Origami Twisted Tower structure.A quasi-static compression experiment was performed on this structure using numerical simulation analysis methods.Results show that the tower origami structure has the energy absorption characteristics of low peak compression force,long platform,and small disturbance.By changing the ratio of inner circle radius to outer circle radius,torsion angle,ratio of outer circle radius to height,and geometric parameters of thickness,the influence law of geometric parameters on energy absorption,peak compressive force,compressive force efficiency and other energy absorption performance can be obtained.The research results have some reference value for the optimal design of origami structures and the study of structural energy absorption characteristics.