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卫星轨道辐射热流的计算对于卫星的热控设计和卫星红外特征研究等都具有重要意义。论文根据描述卫星运动模型参数的卫星轨道六要素,利用坐标变换方法确立了卫星任一表面与太阳、地球的位置角度关系,建立了卫星的表面辐射热流计算模型,可用以计算任意轨道参数的卫星在任意时刻太阳辐射、地球反照和地球辐射等主要轨道辐射热流,并以某轨道上六面体卫星为例给出了其不同表面在整个轨道运行期间的接收到的辐射热流计算结果。结果表明:卫星不同表面接收到的辐射热流密度随时间的变化是不一样的,主要取决于各表面与太阳和地球的角度关系。
The calculation of satellite orbital radiative heat flow is of great significance for the thermal control design of satellite and the research of satellite infrared characteristics. Based on the six elements of satellite orbit, which describe the parameters of satellite motion model, the paper establishes the position angle relationship between any surface of the satellite and the sun and the earth by using the coordinate transformation method and establishes the calculation model of the surface radiative heat flux of the satellite. The satellite can calculate the satellite with arbitrary orbital parameters Radiation heat flux of the main orbital radiation such as solar radiation, Earth’s albedo and Earth’s radiation at any time is given. The calculation results of radiative heat flux received by different surfaces during the whole orbit are given by taking a hexahedral satellite as an example. The results show that the radiative heat flux density received by different surfaces of satellites varies with time, mainly depending on the angle relationship between each surface and the sun and the earth.