阵风载荷减缓系统LQG/LTR多变量控制器设计  

LQG/LTR Multivariable Controller Design for a Gust Load Alleviation System

作　　者：张军红[1] 李振水[1] 詹孟权[1] 高亚奎[1] 

机构地区：[1]第一飞机设计研究院飞行控制系统研究室,陕西西安710089

出　　处：《飞行力学》2007年第4期33-36,共4页Flight Dynamics

摘　　要：给出了阵风载荷减缓系统LQG/LTR多变量控制器设计方法,以某大型运输机为对象,设计了阵风载荷减缓系统控制器。根据系统回差矩阵的最小奇异值理论和通用相角、幅值裕度估算图,给出了系统两个通道的相角和幅值同时变化时系统的稳定裕度。仿真结果表明,该控制器能有效减缓阵风引起的飞机法向过载,其鲁棒性满足通用规范GJB185-86的要求。This paper presents the method of LQG/LTR multivariable controller design of a gust load alleviation system. The controller of the gust load alleviation system is designed for a large transport airplane. In terms of the minimum singular value of system return difference matrix and the universal diagram of muhiloop gain-phase margin evaluation, the simultaneous gain and phase changes in double loop of the system were obtained. Simulation results showed that the gust load alleviation controller based on LQG/LTR control theory could alleviate effectively the gust load, and robust stability met GJB185-86 requirements.

关 键 词：大气紊流 阵风载荷减缓 LQG/LTR控制 最小奇异值理论 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]