轴压铝合金蜂窝圆筒整体稳定性研究  

Study on global stability of aluminum alloy honeycomb cylinder under axial compression

作　　者：魏家睿 吴琼[1,2] 吴伟 李群智 时红伟[5] 张虞[1,2] WEI Jiarui;WU Qiong;WU Wei;LI Qunzhi;SHI Hongwei;ZHANG Yu(State Key Laboratory of Virtual Reality Technology and Systems,Beihang University,Beijing 100191,China;Jingdezhen Branch of Jiangxi Research Institute of Beihang University,Jingdezhen 333000,China;The 9th Overall Design Department of China Aerospace Science and Industry Corporation,Wuhan 430040,China;Beijing Aerospace Technology Institute,Beijing 100074,China;Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)

机构地区：[1]北京航空航天大学虚拟现实技术与系统国家重点实验室,北京100191 [2]北京航空航天大学江西研究院景德镇分院,景德镇333000 [3]中国航天科工集团第九总体设计部,武汉430040 [4]北京空天技术研究所,北京100074 [5]北京空间飞行器总体设计部,北京100094

出　　处：《北京航空航天大学学报》2025年第3期962-972,共11页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金(51875024);民用航天技术预先研究项目(D020304)。

摘　　要：金属蜂窝圆筒结构常因轴压整体屈曲导致承载能力下降,对于其弹性屈曲问题目前已有大量研究,但在塑性屈曲问题方面的理论研究工作较少。为解决上述问题,基于蜂窝圆筒等效模型和Hamilton原理,推导了铝合金蜂窝圆筒承受轴压载荷作用时弹、塑性屈曲临界载荷的理论计算公式,并进行了轴压仿真分析和实验验证,利用理论公式讨论了蜂窝圆筒各尺寸参数对临界载荷的影响。结果表明:所提理论公式和仿真模型均能准确预测铝合金蜂窝圆筒的临界载荷,理论公式计算效率更高;圆筒质量变化±10%时,影响临界载荷的因素依次为面板厚度、圆筒半径、芯子厚度、圆筒高度;蜂窝圆筒的临界载荷与芯子厚度、面板厚度、圆筒半径近似呈线性正相关,与圆筒高度关系较弱。Metal honeycomb cylinder structures frequently encounter a decrease in load-carrying capacity due to axial compression buckling.Extensive research has been conducted on their elastic buckling behavior.However,there are few theoretical studies on their plastic buckling behavior.To address this issue,a theoretical formula was derived for the elastic and plastic buckling critical load of the aluminum alloy honeycomb cylinder under axial compression,drawing upon the equivalent model of the honeycomb cylinder and the Hamilton principle.The simulation analysis and experimentations on the above problem were carried out.Finally,the influence of the honeycomb cylinder dimensional parameters on the critical load was discussed using the theoretical formula.The results show that both the theoretical formula and the simulation model can accurately predict the critical load of the aluminum alloy honeycomb cylinder.In comparison,the theoretical formula is calculated faster.When the cylinder mass changes within the range of±10%,the influence degree of panel thickness,cylinder radius,core thickness and cylinder height on the critical load decreases successively.The honeycomb cylinder’s critical load exhibits a minor association with the cylinder height,but it exhibits an approximately linear positive correlation with the cylinder radius,core thickness,and panel thickness.

关 键 词：蜂窝圆筒 整体稳定性 临界载荷 弹塑性 HAMILTON原理 有限元 

分 类 号：TH122[机械工程—机械设计及理论]