摘要
提出了一种采用μ方法分析多变量飞控系统稳定裕度的新方法,并通过在回路中添加对角乘性摄动矩阵,建立了多变量系统鲁棒稳定裕度与经典的幅值-相角裕度之间的对应关系,给出了二者的对应关系图。最后,以某型飞机横侧向回路为例,验证了方法的有效性和优越性。
A new method based on μ analysis is presented for evaluation of stability margin of a multivariable flight control system. The relationship between μ and classical stability margins of the multivariable system is established by introducing the multiple perturbation matrix at the input node, then an evaluation diagram of μ and gain-phase margin for stability margins analysis is given. Finally, the efficiency and advantage are demonstrated by the simulation.
出处
《飞行力学》
CSCD
北大核心
2006年第2期31-34,共4页
Flight Dynamics
基金
国家自然科学基金资助项目(60134010)
关键词
μ分析方法
多变量系统
稳定裕度
μ analysis method
multivariable system
stability margin
