大型航天器热管理系统集成分析

文章以虚拟的空间实验室为例 ,用数值模拟的方法 ,模拟了大型航天器热管理系统非稳态过程的温度等参数。热管理系统温度等参数的集成分析 ,为大型热管理系统设计提供了分析平台 ,为进一步的敏感性分析、优化设计、试验参数修正、参数置信度分析、鲁棒性设计奠定了分析基础 ,并作为能量系统的主要组成部分 ,为能量系统的能量平衡分析和电能 /热匹配分析提供有力支持。

Integrated Analysis of Thermal Management System in Large Spacecraft

The temperature of thermal management system in hypothetic space lab is illustrated. The model of the system is consisted of external and internal thermal control sub-system, avionics air cooling sub-system in racks, cabin air cooling system and two sub-modules of heat transfer. The one of sub-modules modeled heat transfer by radiation and conduction among equipment, racks, gas cylinders and inner cabin wall. The other modeled heat transfer by radiation among outer cabin wall, radiatior, solar panel and external radiation environment. The results of temperature's modeling of the system will not only support design of thermal management system of large spacecraft, but also provide system analysis, which included sensible analysis, test data correlation, optimizing design, reliability analysis and robust design. The thermal management system can be extended to energy system by adding power sub-system and then the modeling of thermal system will benefit to analyse energy balance and power/thermal system matching of the energy system.