基于平衡理论的大柔性飞行器模型降阶  

Model reduction of very flexible aircraft based on balanced realization

作　　者：孙明敏[1] 陆宇平[1] 徐亮[1] 沈华勋[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016

出　　处：《电子设计工程》2015年第13期121-124,共4页Electronic Design Engineering

基　　金：国家自然科学基金(91016017);江苏省自然科学基金(BK20130806)

摘　　要：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。To reduce the difficulty in analysis and numeration of very flexible aircraft model, a balanced realization method is adopted to simplify the model of a certain very flexible aircraft. With the numerical calculation using state-space Newmark method based on average velocity, the output response curves of both the reduced-order model and the original model are presented. Simulation results show that the reduced-order model preserves sufficient response characteristics, which could be a basis for the controller design of very flexible aircraft.

关 键 词：大柔性飞行器 模型降阶 平衡实现 状态空间Newmark法 

分 类 号：TN96[电子电信—信号与信息处理]