一种新型组合蜂窝结构的轴向承载性能研究

发布时间：2017-12-27 03:22

本文关键词：一种新型组合蜂窝结构的轴向承载性能研究　出处：《机械强度》2016年02期 　论文类型：期刊论文

【摘要】：轴向承载力是蜂窝结构重要的力学性能指标。提出一种基本胞元由菱形和圆形构成的新型组合蜂窝结构,围绕其轴向结构稳定性、整体刚度和强度三个方面展开研究。首先运用线性特征值屈曲分析方法,通过有限元数值模拟,实现了新型组合蜂窝的结构稳定性分析过程,并与菱形、正六边形、正八边形蜂窝结构的屈曲分析结果进行了比较;同时,以某型号电动车底盘中部甲板为例,验证了新型组合蜂窝夹芯结构在轴向载荷作用下的整体强度和刚度,并分析了不同胞元壁厚对夹芯整体强度和刚度的影响。结果表明,新型组合蜂窝具有良好的轴向结构稳定性,且其夹芯层整体刚性和强度较好,轴向承载力强,是综合力学性能较优的创新构型。
[Abstract]:The axial bearing capacity is an important mechanical performance index of the honeycomb structure. A new honeycomb structure consisting of rhombus and circle is put forward. The three aspects of axial structure stability, global stiffness and strength are studied. First, using the linear eigenvalue buckling analysis by finite element method, numerical simulation, the structural stability of a new combination of cellular analysis process, and diamond, hexagonal, eight edge buckling analysis of castellated structure were compared; at the same time, with a certain type of electric vehicle in the middle part of the chassis deck as an example, verify the overall strength new composite honeycomb sandwich structure under axial load and stiffness, and analyzes the different cell wall thickness on the overall strength and stiffness of the sandwich. The results show that the new honeycomb honeycomb has good axial structure stability, and its sandwich layer has good rigidity and strength, and strong axial bearing capacity. It is an innovative configuration with better mechanical properties.
【作者单位】：湖北理工学院机电工程学院;三峡大学机械与材料学院;
【基金】：国家自然科学基金项目(51305232) 湖北理工学院校级重点项目(13xjz04A)资助~~
【分类号】：U469.72
【正文快照】： HE Bin LI Xiang(1.School of Mechanical and Electrical Engineering,Hubei Polytechnic University,Huangshi 435003,China)(2.College of MechanicalMaterial Engineering,China Three Gorges University,Yichang 443002,China)Corresponding author:HE Bin,E-mail:hebin

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