摘要
主要研究了频率域鲁棒稳定性分析的新方法及其在飞机横侧控制系统中的应用。为了提高计算效率，基于Nyquist判据，提出了对数鲁棒稳定性的新判据。为了简化多变量频率城鲁棒性分析和设计方法，进一步提出了逆Nyquist阵对角占优势判别式，使计算量大大减少。所提出的鲁棒性新判据在飞机横侧向控制中的应用表明，该方法可以得到令人满意的结果。
A new frequency response based analysis method of robust stability is developed in this paper. hased on the Nyquist method, a new logic criterion is presented to get high order of computational efficiency. To simplify the robust method of frequency-response-based analysis and design for MIMO system, a new determination formula of the domination of the Inverse Nyquist matrix is given. By means of the new method,the number of operation counts for robust analysis and design can be decreased greatly.Applications of the new criterion to lateral flight control system show that the new approach can give satisfactory results.
出处
《飞行力学》
CSCD
北大核心
1997年第1期37-43,共7页
Flight Dynamics
基金
航空基金
国家教委博士点基金
关键词
鲁棒稳定性
多变量频率法
飞行控制
Robust stability
MIMO frequency response
Robust method Numberical computation
Flight control
