太阳翼驱动机构对卫星姿态扰动特性评估
Characteristics evaluation of satellite attitude disturbance caused by solar array drive assembly
宋慧心 1晏也绘 1李奎1
作者信息
- 1. 航天行云科技有限公司,武汉 430040
- 折叠
摘要
为了研究太阳翼驱动机构(solar array drive assembly,SAD A)对卫星平台姿态的扰动特性,建立了考虑SADA驱动太阳翼旋转的整星姿态动力学模型,设计了一种测量SADA带载运动特性的试验方案.通过试验得到了 SADA驱动负载的运动特性曲线,对试验数据进行拟合得到了 SADA带载驱动的传递函数.将拟合的SADA运动模型代入到整星姿态动力学模型中进行仿真,得到了考虑SADA运动时的卫星姿态控制指标.基于SADA的运动特性和安装方式,设计了将两台SADA驱动信号的相位交错180 °的扰动抑制策略.仿真验证了该策略对SADA运动的扰动抑制效果,具有良好的工程应用价值.
Abstract
In order to study the satellite attitude disturbance characteristics caused by solar array drive assembly(SADA),satellite attitude dynamics model considering the rotation of the solar arrays driven by SADA was established.An experiment scheme was designed to measure kinematic characteristics of SADA on-load.Through the experiment,kinematic characteristic curve of SADA on-load was obtained,and kinematic transfer function of SADA on-load was acquired by fitting experimental data.SADA kinematic model was substituted into satellite attitude dynamics model for simulation,therefrom getting satellite attitude control indicators when considering SADA motion.Based on kinematic characteristics and installation mode of SADA,a disturbance suppression strategy that interleaved the phases of the two SADA drive signals by 180° was designed,which was verified effective on disturbance suppression caused by SADA motion.The strategy has good engineering application value.
关键词
整星姿态动力学模型/太阳翼驱动机构(SADA)/运动特性/传递函数/扰动抑制Key words
satellite attitude dynamics model/solar array drive assembly(SADA)/kinematic characteristics/transfer function/disturbance suppression引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据