月基望远镜热设计及热分析

Thermal design and thermal analysis for the moon-landed telescope

为了利用月球观测地球等离子体层的优势,开展了月基望远镜的研究,并对其进行了热设计和热分析。分析了月基望远镜所处的空间环境。对望远镜各个部分进行了热设计;采用被动热控措施控制望远镜的温度水平,降低空间环境的影响;采用热疏导的方式对探测器进行散热。根据月基望远镜的空间环境、结构特点,以及采取的热控措施,在I-DEAS/TMG软件中建立有限元模型,并进行了仿真分析。分析结果:光学系统部分最大温度范围为-50℃～60℃,机械结构部分为-110℃～105℃。热设计方案合理可行,满足热设计要求,其研究方法对其他舱外月基探测器的热设计具有一定的指导和借鉴作用。

In order to explore the plasma sphere of the earth on the moon,a moon-landed telescope（MLT） is carried out.The thermal design and the thermal analysis of a moon-landed telescope（MLT） are presented.The thermal environment of the MLT is analyzed.The thermal design of the MLT is developed.A passive thermal control system is used to control the temperature of the MLT to reduce the influence of the MLT to the external environment.The heat dissipation of detector is researched with the approach of conduction.The finite element model is built based upon the environment,the structure and thermal control system of the telescope with I-DEAS/TMG.The thermal control system is simulated and calculated.The results of analysis indicate that the temperature of optical system is-50℃-60℃ and the other parts is-110℃-105℃.The results of the simulation indicate that the thermal design is reasonable.The research method could give some guidance and reference for the thermal design of other moon-landed detectors out of the cabin.