LQG控制理论在阵风载荷减缓系统中的应用  

Application of LQG Theory to 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2期61-64,共4页Flight Dynamics

摘　　要：针对D ryden频谱函数,通过有理谱成形理论,建立了阵风的线性化模型。明确了阵风对飞机的扰动机理后,以某型飞机为对象,建立了包括阵风过程、舵机系统和飞机模型的纵向动力学増广模型。以该增广模型为设计对象,应用LQG控制理论,设计了阵风载荷减缓系统。仿真结果表明,该系统能有效减缓阵风对飞行过载的影响。For Dryden power spectral density function, using the rational spectral theory to set up the linear state-space model. The coupling relationship between gust and aircraft is revealed through the angle of attack, the synthesized system model including gust, actuator system and aircraft model is developed. Simulation results show that the gust load alleviation control system based on LQG control theory can obtain good capability of restraining the gust turbulence.

关 键 词：阵风载荷减缓 LQG控制理论 大气紊流 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]