一种新型组合蜂窝夹芯的热性能分析与尺寸改进方法  

Thermal performance analysis and dimensional modification of a new type of supercell honeycomb core

作　　者：何彬[1] 李响[2] 

机构地区：[1]湖北理工学院机电工程学院,黄石435003 [2]三峡大学机械与材料学院,宜昌443002

出　　处：《现代制造工程》2016年第2期12-15,21,共5页Modern Manufacturing Engineering

基　　金：国家自然科学基金资助项目(51305232);湖北理工学院校级重点项目(13xjz04A)

摘　　要：组合蜂窝具有较大的功能设计空间和良好的应用前景。提出一种新型组合蜂窝夹芯构型,分析了其热性能指标和影响因素,实现了该组合蜂窝夹芯的热性能数值模拟过程,通过与正方形、菱形及六边形蜂窝夹芯的比较,对该组合蜂窝夹芯的热强度和热刚度性能进行评价;借助灵敏度分析方法,得到了影响该组合蜂窝夹芯热性能的关键胞元壁厚,并根据不同壁厚的热性能有限元仿真结果,对蜂窝夹芯胞元壁厚进行改进,从而进一步改善了该组合蜂窝夹芯结构,提高了其整体热强度和热刚度性能。Supercell honeycomb has large functional design space and good application prospect. A new type of supercell honeycomb structure is put forward and its thermal performance and influence factor are analyzed to realize the numerical simulation process of thermal performance of the supercell honeycomb＇ s core. The thermal strength and rigidness of the supercell honeycomb＇s core are evaluated in comparison with square, rhombus, regular hexagon honeycomb core. Meanwhile, wall thickness is found the key cell dimension to influence the core＇ s thermal performance by helps of the method of sensitivity analysis. Then the wall thickness of cell is modified dimensionally according to the finite element simulation result of different wall thickness so as to further improve the supercell honeycomb structure and enhance its overall thermal strength and rigidness.

关 键 词：组合蜂窝 夹芯 热应力 热变形 有限元 灵敏度 

分 类 号：TH122[机械工程—机械设计及理论]