为了降低大柔性飞行器模型的分析与计算难度,采用了基于平衡实现的降阶方法对某大柔性飞行器模型进行简化,并利用基于平均速度的状态空间Newmark法进行数值运算,得出了降阶模型与原系统的输出响应曲线。仿真结果表明,降阶模型能够较好地反映原系统的响应特性,这为大柔性飞行器模型的控制器设计提供了参考。 In order to reduce the difficulty of the analysis and calculation of the large flexible aircraft model, a reduced-order method based on equilibrium is adopted to simplify a large-scale flexible aircraft model and the Newmark method based on the average velocity is used for numerical calculation. The reduced-order model Output response curve with the original system. The simulation results show that the reduced-order model can better reflect the response of the original system, which provides a reference for the controller design of the large-flexible aircraft model.