可展开式辐射器热控对航天器轨道调整的适应性分析

为提高航天器热控系统对轨道调整的适应能力，本文研究了与流体回路耦合的可展开式辐射器热控方案在不同轨道高度下的热控性能，分析了不同轨道高度时辐射器面临的热环境的影响，在不同轨道高度下比较了固定辐射器与可展开辐射器的热控特性。结果表明，随着辐射器展开角度的变化，辐射器吸收的空间热流随之发生变化，从而对热控系统的散热能力带来直接影响，调节辐射器的角度可以扩大其对外散热能力。在工程应用中，基于热控流体回路，通过调节可展开式辐射器的展开角度，可以有效提高航天器的轨道热适应能力。

Adaptability Analysis of Deployable Radiator Thermal ControlSystem to Spacecraft Orbit Adjustment

In order to improve the adaptability of spacecraft thermal control system, this paper investigates the thermal control scheme of the deployable radiator coupled with a liquid loop. The thermal environment changes of the radiator at different orbit altitudes are analyzed. The thermal control characteristics of the fixed radiator and the deployable radiator in different orbit environments are compared. The results show that as the deployment angle of the radiator changes, the space heat flux absorbed by the radiator also changes, which directly affects the heat dissipation capacity of the thermal control system. The deployable radiator can enhance its ability of heat dissipation. In engineering applications, based on the thermal control liquid loop, by adjusting the deployment angle of the deployable radiator, the thermal adaptability of the spacecraft can be effectively improved.