摘要
浮动断接器作为在轨补加接头,是两航天器液路和气路的连通和断开的接口部件,可以实现两航天器之间的燃料、氧化剂的传输。浮动断接器一般安装在航天器的头部或尾部,外热流条件严酷,为保证其合适的工作温度,有效的热控制措施非常关键。以推进剂补加用浮动断接器作为研究对象,建立了浮动断接器物理模型,分析了其外部极端热环境,采用传热学的辐射以及热传导理论,形成热控设计方案。根据边界温度以及宇宙空间的外热流极端条件,应用IDEAS/TMG热分析软件进行了不同工况下的热分析仿真计算,在此基础上对热控方案进行了优化设计。分析结果表明:采用主动热控和被动热控相结合的热控措施可以满足浮动断接器正常工作的温度指标要求,热控设计合理可行。
The floating coupling as a on-orbit resupply connecter can connect or disconnect liquid and gas lines of two spacecrafls to achieve the transmission of oxidant and fuel. Due to its extreme temperature environment, the thermal control measure is a key factor to keep the floating coupling work well. In this paper, a physical model of the floating coupling for propellant resupply is built, and the extemal extreme temperature environment is analyzed. The thermal control design scheme of the floating coupling is drawn up according to the radiation and heat conduction theory in heat transmission science. The thermal analysis and simulation calculation are executed by means of thermal analysis software IDEAS/TMG under different working conditions. The thermal control scheme was optimized. The analysis results indicate that the thermal control measure combining active thermal control with passive thermal control can meet the temperature specifications of floating coupler. Therefore, the thermal control design is rational and feasible.
出处
《火箭推进》
CAS
2015年第1期23-28,共6页
Journal of Rocket Propulsion
基金
上海市科学技术委员会资助课题(13DZ2250600)
关键词
浮动断接器
热控
仿真
floating coupler
thermal control
simulation
