空间红外望远镜无热化支撑结构形式综述

空间红外望远镜的成像质量依赖着低温深冷的环境。在这种环境下，对反射镜的结构及其支撑结构都提出了严格的要求。介绍了当前国内外望远镜的被动支撑结构(如bipod、hexapod和whiffle tree结构)，然后对国内外望远镜的主动支撑结构形式和促动器的原理进行了分析说明。通过对国内外望远镜主、被动支撑结构的分析，对二者进行了对比，并指出了它们的优缺点以及各自适用的领域。提出了两种实现无热化支撑结构的方法：对于拼接式望远镜，采用whiffle tree结构和促动器的组合支撑形式；对于单块式望远镜，采用whiffle tree结构和A frame结构并搭配促动器的支撑形式。

Overview of Athermalized Supporting Structures for Space Infrared Telescopes

The imaging quality of space infrared telescope depends on the cryogenic environment. In this environment, strict requirements are placed on the structure of the mirror and its supporting structure. The current passive supporting structures of telescopes at home and abroad (such as bipod, hexapod and whiffle-tree structures) are introduced, and then the active supporting structure forms of domestic and foreign telescopes and the principle of actuators are analyzed and explained. Through the analysis of the active and passive supporting structures of domestic and foreign telescopes, the two are compared, and their advantages, disadvantages and applicable fields are pointed out. Two methods for realizing athermalized supporting structure are proposed. For the segmented telescope, the combined supporting form of whiffle-tree structure and actuator is used. For the monolithic telescope, the combined supporting form of whiffle-tree structure, A-frame structure and actuator is used.