负泊松比柔性蜂窝结构在变体机翼中的应用  

Negative Poisson's Ratio Honeycomb Structure and Its Applications in Structure Design of Morphing Aircraft

作　　者：颜芳芳[1] 徐晓东[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《中国机械工程》2012年第5期542-546,共5页China Mechanical Engineering

基　　金：南京航空航天大学专项科研资助项目(NS2010229)

摘　　要：提出一种负泊松比柔性蜂窝结构,建立了柔性蜂窝蒙皮结构的力学分析模型,研究了柔性蜂窝结构参数对面内变形能力和面外承载能力的影响,并对结果进行了有限元仿真分析与试验验证。试验结果表明,负泊松比蜂窝结构具有较大的面内变形能力,其结构变形具有特殊的拉涨特性,采用负泊松比柔性蜂窝结构的变体机翼具有改善无人机起降性能的潜力。This paper investigated a negative Poisson＇s ratio flexible honeycomb structure.Then,a mechanics properties analysis theoretical model of flexible honeycomb was established.Finite element analysis results and test results were compared to analyse the mechanical properties.The results show that the negative Poisson＇s honeycomb structure has substantial in-plane deformability and auxetics properties.Morphing wing with negative Poisson＇s ratio flexible honeycomb structure has the potential of improving aircraft takeoff performance.

关 键 词：变体机翼 柔性蜂窝 面内变形 力学性能 负泊松比 

分 类 号：TB250.3[一般工业技术—工程设计测绘]