空间光学望远镜光机热一体化分析与实验研究

项目名称： 空间光学望远镜光机热一体化分析与实验研究

项目编号： No.10878018

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 陈志远

作者单位： 中国科学院国家天文台

项目金额： 31万元

中文摘要： 本项目针对高分辨率空间光学望远镜，进行光机热一体化分析研究，重点研究望远镜在光学、热学和机械系统方面的相互作用关系，包括热弹性效应，热光学效应，应力光学效应问题。并以现有的空间太阳望远镜（SST）有效载荷－Ha 与白光全日面望远镜为对象，建立热控制系统，光学检测系统，地面试观测系统，最终构建一套光机热一体化实验系统。从理论分析、数值模拟和物理试验三个方面对光机热一体化技术中的关键问题进行研究，形成一套切实可行的光机热一体化分析应用路线，为SST 以及其它大型空间光学系统开展光机热一体化分析应用积累经验。

中文关键词： 空间光学望远镜；Ha 与白光全日面望远镜（HWT）；热光学；光机热一体化；衍射极限

英文摘要： The main task of the program is to perform an integrated structural-thermal-optical study on high resolution space optical telescope. This program focuses on the internal mechanics relating the optical, the thermal and the mechanical behaviors of the telescope, especially on the three main effects that govern the telescope system: thermal elastic effect, thermal optical effect and stress optical effect. As one important payload of the Chinese Space Solar Telescope(SST), the H-alpha and White Light Telescope (HWT) is selected to be the analytical and experimental prototype of the program. Based on the thermal-optical research achievements resulting from the "Tenth 5-year Plan" pre-research of the SST, an integrated structural-thermal-optical experimental system will be constructed, including the thermal control system, the optical test system and the ground observation test system. By way of theoretical analysis, numerical simulation and physical experiment, the key problems of the integration of structuralthermal-optical analysis will be studied. As one result, a practical application route suitable for structural-thermal-optical analysis and experiment study will be explored. The program will provide experience to the integrated structural-thermal-optical study of SST or other large scale space optical systems.

英文关键词： Space optical telescope; Ha and white light solar telescope; Thermal optical analysis; Integration of structural-opticalthermal analysis; Diffraction