摘要
为分析反射面天线结构振动对天线电性能的影响,文章给出一种结构振动与电性能集成建模分析方法,得到从结构振动到天线电性能指向的直接近似关系式,将天线的电性能增益离散至模态空间,并与整星动力学模型结合组成天线结构振动与电性能集成模型,从而可通过求解时域振动模态坐标得到振动过程中反射面天线的电性能增益变化情况,实现卫星天线结构振动到电性能增益的动态变化仿真分析,弥补了当前电性能分析仅可针对天线单次静态结构变形展开的不足。
To analyze the electric performance of reflector antenna in structure vibrations,an integrated modeling method is used for relating the structure vibration to the electrical performance.A direct approximation of the relation between the two is made,to predict the change of the antenna's electrical performance due to the vibration of the structure.This method improves the electric performance analysis based only on the static structure distortion data.
作者
邓润然
邹元杰
葛东明
杜敬利
DENG Runran;ZOU Yuanjie;GE Dongming;DU Jingli(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China;School of Electromechanical Engineering,Xidian University,Xi’an 710071,China)
出处
《航天器环境工程》
2019年第2期126-133,共8页
Spacecraft Environment Engineering
关键词
反射面天线
电性能
结构振动
仿真分析
reflector antenna
electrical performance
structure vibration
simulation analysis
