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卫星在轨运行期间,卫星天线部件的温度会随着不断变化的外热流和辐射交换而变化。对温度变化敏感的部件如天线反射器在这种情况下易发生热致振动现象,从而影响其正常功能。对在轨运行的卫星天线所进行的热分析为卫星天线的热控设计和热致振动的预测提供了温度数据。首先建立某型号卫星天线系统的物理模型,然后利用UG-TMG软件对其进行在轨运行空间瞬态热分析,最后分析天线反射器的温度结果,为以后的热致振动研究提供参考和数据支持。
During satellite orbit operation, the temperature of satellite antenna components varies with the changing external heat flux and radiation exchange. Components that are sensitive to temperature changes, such as antenna reflectors, are prone to thermal-induced vibrations in these conditions, affecting their normal function. Thermal analysis of satellite antennas in orbit provides temperature data for the thermal control design and thermal-induced vibration prediction of satellite antennas. Firstly, the physical model of a satellite antenna system is established. Then, UG-TMG software is used to perform transient thermal analysis on the orbiting space. Finally, the temperature results of the antenna reflector are analyzed to provide reference and data support for the subsequent thermal induced vibration research .