摘要
采用描述函数法建立了含有非线性控制系统的人机系统数学模型,确定了系统的极限特性,探讨了极限环与驾驶员诱发振荡(PIO)之间关系和操纵系统非线性因素对PIO影响等。
A pilot vehicle system (PVS) mathematical model containing nonlinear control elements of the flight control system is established by the describing function method; the limit cycle of PVS is determined; the relation between the limit cycle and pilot induced oscillation (PIO) and the influence of nonlinear control elements on PIO are explored. Numerical simulations of PVS verify the analysis results with JJ7 aircraft as an example.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2000年第1期21-24,共4页
Acta Aeronautica et Astronautica Sinica
关键词
人机系统
驾驶员诱发振荡
控制系统
飞行控制
pilot-vehicle system
pilot induced oscillation
limit cycle
nonlinear control element
describing function
