论文部分内容阅读
两相流体回路在我国嫦娥三号月球探测器上的应用是全球航天器热控系统设计上的首次尝试,两相流体回路利用月球g/6重力驱动,无需电源供给,在长达14 d的月夜工况下,有效利用同位素热源解决了着陆器和巡视器内的仪器温控难题.回路研制过程中遇到了传热性能无法在地面得到真实模拟的技术难题,本文以巡视器两相流体回路为例,建立了g/6重力驱动两相流体回路传热性能的地面模拟方法,给出了地面真空热性能试验验证结果并进行了分析.
The application of two-phase fluid circuit in China’s Chang’e III lunar probe is the first attempt of the design of global thermal control system for spacecraft. The two-phase fluid circuit is driven by the lunar g / 6 gravity without power supply. Under the condition of moonlight night, the effective use of isotope heat source solves the instrument temperature control problems in the lander and the patrol device.The technical problems that the heat transfer performance can not be simulated realistically on the ground are encountered in the circuit development process. In this paper, As an example, a ground simulation method for g / 6 gravity-driven heat transfer performance of two-phase fluid circuit was established. The verification results of ground vacuum thermal performance test were given and analyzed.