柔性航天器动力学建模及模型降阶研究

Computer Simulation(2011)

Cited 23|Views21
No score
Abstract
针对柔性航天器振动影响飞行器姿态稳定性和精度。为了解决上述问题,提出了多柔体航天器的动力学建模。首先,根据工程实现的假设振型法,采用拟坐标拉格朗日方程,推导出带有刚体模态的二阶系统刚柔耦合动力学模型,其中,为了减少模型计算量,通过坐标变换将刚体模态和柔性模态解耦,利用一种刚体模态解耦的二阶不稳定系统的模型降阶方法,并对航天器多柔体系统动力学方程进行了仿真分析,结果飞行姿态稳定,满足了精度要求,表明了动力学建模与模型降阶法的有效性和正确性。
More
Translated text
Key words
Spacecraft dynamics modeling,Model reduction,Flexible multibody dynamics
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined