新型零泊松比类蜂窝结构等效弯曲刚度研究  

Study on equivalent bending stiffness of a novel zero Poisson’s ratio quasi-honeycomb structure

作　　者：廖学知 王洪波 李宝玉[1] 赵晓宁[1] LIAO Xuezhi;WANG Hongbo;LI Baoyu;ZHAO Xiaoning(China Academy of Launch Vehicle Technology,Beijing 100076,China;China Aerospace Science and Technology Corporation,Beijing 100048,China)

机构地区：[1]中国运载火箭技术研究院,北京100076 [2]中国航天科技集团有限公司,北京100048

出　　处：《兵器装备工程学报》2022年第10期172-178,共7页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金联合基金项目(U20B200071)。

摘　　要：通过融合正弦波纹结构与蜂窝结构,构建了一种具有零泊松比效应的类蜂窝结构,当波纹幅值为0时,退化为手风琴式蜂窝结构。基于能量法建立了其等效弯曲刚度理论模型,分析了结构参数对弯曲性能的影响规律。结果表明:正弦波纹壁板结构具有典型的正交异性特征,两正交方向弯曲刚度随蜂窝角的增大呈相反的变化规律,随着壁高及壁厚的增大而增大,在一定条件下对波纹幅值不敏感。最后结合有限元仿真,验证了理论分析方法的正确性。A kind of honeycomb structure with zero Poisson’s ratio effect was constructed by fusing sinusoidal corrugated structure and honeycomb structure. When the amplitude is 0, it can degenerate into the accordion honeycomb structure. The theoretical model of its equivalent bending stiffness was established based on the energy method, and the influence of the structure parameters on structural bending performance was analyzed. The results show that the structure has typical orthotropic characteristic, and the bending stiffness of the two orthogonal directions changes inversely with the increase of honeycomb angle, and increases with the increase of wall height and wall thickness. Under certain conditions, the bending stiffness is insensitive to the amplitude of corrugated wall. The correctness of the present analytical method was verified by finite element simulation.

关 键 词：零泊松比 蜂窝结构 波纹结构 等效弯曲刚度 

分 类 号：TJ760.3[兵器科学与技术—武器系统与运用工程] TB124[理学—工程力学]