红外与激光工程, 2018, 47(4): 0418002, 网络出版: 2018-04-01

X射线聚焦望远镜的支撑结构设计与力学实验分析

Design and mechanical experiment analysis of support structure for X-ray focusing telescope
作者单位

1同济大学 先进微结构材料教育部重点实验室, 上海 200092

2同济大学 物理科学与工程学院 精密光学工程技术研究所, 上海 200092

3上海卫星工程研究所, 上海 200240

4上海利正卫星应用技术有限公司, 上海 200240

摘要
掠入射X射线聚焦望远镜的支撑框架结构设计是望远镜研制的关键技术之一。国内规划中的XTP卫星低能聚焦望远镜拟采用基于超薄玻璃的X射线聚焦望远镜方案, 针对望远镜样机严苛的光学和力学性能要求, 经过结构选型优化, 设计了一种一体化的六边形桶式望远镜支撑结构。利用有限元软件对支撑结构进行了模态分析和频率响应分析, 并与力学实验进行了对比验证。结果表明, 该支撑结构具有较大的结构刚度, 望远镜结构在发射环境下不会发生破坏性改变, 满足力学性能要求。该支撑框架结构简洁、装配精度高, 具有良好的工艺性, 为望远镜的研制提供了参考。
Abstract
The design of the support frame structure of grazing incidence X-ray telescope is one of the key technologies in the development of telescope. The low energy focusing telescope of XTP satellite was planned, which adopted the X-ray focusing telescope based on the ultrathin glass. According to the rigorous optical and mechanical performance requirements for telescope prototypes, a hexagon barrel type telescope support structure was designed after structure selection and optimization. The modal analysis and frequency response analysis of the support structure were carried out by using the finite element software, and the results were compared with the mechanical experimental results. The results show that the support structure has a large structural rigidity, and the structure of the telescope will not be destroyed when it is launched, which can meet the requirements of mechanical properties. The support frame has the advantages of simple structure, high assembling precision and good manufacturability as well. It provides a reference for telescope development.
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