空间遥感器中心筒式主支撑结构设计与仿真  

Design and Simulation of Central Cylinder Main Support Structure for Space Remote Sensor

作　　者：孙凯鹏[1] 孙杰[1] 张刘[2] 王泰雷 SUN Kaipeng;SUN Jie;ZHANG Liu;WANG Tailei(Shanghai Institute of Satellite Engineering,Shanghai 201109;College of Instrumentation&Electrical Engineering,Jilin University,Changchun 130012)

机构地区：[1]上海卫星工程研究所,上海201109 [2]吉林大学仪器科学与电气工程学院,长春130012

出　　处：《飞控与探测》2021年第5期71-78,共8页Flight Control & Detection

基　　金：科技部重点研发计划项目(2016YFB0501000,2016YFB0501002);上海航天科技创新基金(SAST2018046)。

摘　　要：针对某高分辨型光学成像载荷,从光学系统指标和结构稳定性要求出发,设计了一种具有加强结构的中心筒式主支撑结构。在空间遥感器的结构形式和光学系统指标要求的基础上,给出了中心筒式主支撑结构的构型方案和材料。根据临界应力理论,计算并分析了结构的失稳强度。通过尺寸优化,在保证结构的基频和位置精度最优的同时使相机得以大幅度减重。分析了中心筒式主支撑结构的静力学和动力学特性。有限元分析结果表明,结构满足光学系统公差,且具有足够的动刚度,以及对振动载荷的抵抗性良好。Aiming at the high resolution optical imaging load,a central cylinder with reinforced structure is designed based on the requirements of optical system and structural stability.Based on the structure and optical system requirements of the space remote sensor,the configuration scheme and material of the central cylinder main support structure are determined.According to the critical stress theory,the instability strength of the structure is calculated and analyzed.By optimizing the size,the basic frequency and position accuracy of the structure is optimized,and the camera can reduce weight greatly.The static and dynamic characteristics of the central cylinder main support structure are analyzed.The results of finite element analysis show that the structure meets the tolerance of optical system and has enough dynamic stiffness to resist vibration loads.

关 键 词：空间遥感器 主支撑结构 尺寸优化 有限元分析 

分 类 号：V447.1[航空宇航科学与技术—飞行器设计]