首页|星载激光雷达望远镜主次镜支撑结构设计与分析

星载激光雷达望远镜主次镜支撑结构设计与分析

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  • 国家科技期刊平台
  • NETL
  • NSTL
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针对星载激光雷达望远镜的设计要求,基于超轻量化主镜组件模型结构,从材料选择、结构形式及轻量化等方面对主次镜间支撑结构及组件进行详细设计,获得次镜组件重仅为 0.530 kg;主、次镜间支撑结构重仅为1.000 kg,最终获得望远镜整机结构,总重仅为10.600 kg.通过有限元建模、分析的方法,重点分析了主次镜的面型精度、相对位置关系受重力变形的影响及整机模态,保证了主次镜支撑面型RMS优于λ/40(λ@632.8 nm),整机系统具有较好的刚度和环境适应性.分析结果表明:望远镜主次镜支撑结构及组件满足设计要求,可为同类望远镜结构设计提供一定指导.
Design and Analysis of the Supporting Structure Between the Primary and Secondary Mirrors of Space-borne Lidar Telescope
In accordance with the design specifications of the space-borne Lidar Telescope,the supporting structure and components between the primary and secondary mirrors were meticulously engineered to align with the criteria of material selection,structural form and lightweight design.The secondary mirror components were manufactured with a mass of only 0.530 kg,while the supporting structure between the primary and secondary mirrors was constructed with a mass of 1.000 kg.This resulted in a final structure for the telescope with a total mass of only 10.600 kg.The surface figure and relative position of the primary and secondary mirrors,as well as the gravity deformation and mode of the entire machine,were subjected to intensive study through the method of finite element modelling and analysis.The surface figure root mean square(RMS)of the primary and secondary mirror is superior to λ/40(λ@632.8 nm).The design of the supporting structure and components for the primary and secondary mirrors was found to satisfy the specified requirements in terms of stiffness and environmental adaptability.The results demonstrate that the design objectives for the supporting structure and components of the primary and secondary mirrors have been achieved,thus providing a framework for the structural design of similar telescopes.

space-borne lidarsecondary mirror modulesupporting structure between primary and secondary mirrorelement finite analysisRMS

李路、於天乐、荣莉、邢昆明、张建军、张陈哲、赵明

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皖西学院 机械与车辆工程学院,安徽 六安 237012

中国科学院安徽光学精密机械研究所中国科学院大气光学重点实验室,安徽 合肥 230031

淮南师范学院 电子工程学院,安徽 淮南 232038

星载激光雷达 次镜组件 支撑结构 有限元分析 RMS

安徽省教育厅自然科学研究重点项目淮南师范学院校企合作项目皖西学院高层次人才项目安徽省大学生创新创业训练计划项目

KJ2021A09452023HX215WGKQ2022013SS202210376137

2024

徐州工程学院学报(自然科学版)
徐州工程学院

徐州工程学院学报(自然科学版)

影响因子：0.636
ISSN：1674-358X
年,卷(期)：2024.39(3)