基于海月水母的微小卫星结构力学特性分析  

Mechanical Analysis of Microsatellite Structure Design Based on Moon Jellyfish

作　　者：李军瑶 谷松[1,3] 陈善博 LI Jun-yao;GU Song;CHEN Shan-bo(Changehun Institute of 0ptics,Fine Mechanics and P hysics,Chinese Academy of Sciences,Changchun 130033,China;University of Chinese Academy Sciences,Beijing 100039,China;Chang Guang Satellite Technology Ltd,Changchun 130033,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100039 [3]长光卫星技术有限公司,吉林长春130033

出　　处：《计算机仿真》2021年第5期32-36,74,共6页Computer Simulation

基　　金：国家重点研发计划(2016YFB0500904)。

摘　　要：旨在突破卫星结构设计思维局限,提高卫星一体化程度,降低结构质量占比。试图从生物形态和功能中获取微小卫星结构设计灵感,发现了海月水母与卫星结构有类似的边界条件和重力缓释过程。从海月水母的生物形态中提取了其形态的数学模型,提出了一种新型的卫星构型方案。建立了整星结构力学模型。卫星总重50.4kg,结构质量为4.5kg,结构质量占比8.93%。用有限元软件对模型进行了力学特性分析。仿真结果表明:整星基频为63.5Hz,正弦响应和随机响应满足预期要求。因此,说明上述构型可在保证力学特性情况下使卫星结构质量占比保持较低水平。The aim is to break through the limitation of satellite structure design thinking,improve the degree of satellite integration,and reduce the proportion of structure quality.Getting the inspiration of microsatellite structure design from the biological state and function,it was found that the jellyfish have similar boundary conditions and gravity slow-release process with the satellite structure.A new satellite configuration scheme was proposed by extracting the mathematical model of its morphology from the biological morphology of sea moon jellyfish.The mechanical model of the whole star structure was established.The total weight of the satellite is 50.4 kg,and the structural mass is 4.5 kg,accounting for 8.93%of the structural mass.The simulation results show that the fundamental frequency of the whole satellite 63.5 Hz,the sinusoidal response,and the random response meet the expected requirements.Therefore,this configuration can keep the mass ratio of the satellite structure at a low level while ensuring the mechanical characteristics.

关 键 词：仿生 海月水母 微小卫星 构型 

分 类 号：V411.8[航空宇航科学与技术—航空宇航推进理论与工程]