摘要
将Levy法引入到导弹气动舵机的建模中,根据试验测得的频率特性数据辨识出舵机的数学模型。利用辨识得到的数学模型在Matlab中进行控制系统仿真,并将仿真结果与实测频率特性数据进行比较。比较结果显示,所建立的模型误差小,在1～30Hz频率段具有较高的拟合精度,达到了导弹总体设计的指标要求。为导弹制导控制系统提供了较为准确的气动舵机模型。
The Levy method was introduced into the modeling of missile＇s pneumatic actuator,and the mathematical model of the actuator was identified using the frequency characteristic data deriving from test.Through comparison between the results of control system simulation in Matlab and the tested data,it was shown that the error of the model built was small and had higher fitting precision in the frequency band from 1Hz to 30Hz,which met the requirements of general design for missile.A relatively accurate pneumatic actuator model was provided for guidance control system of missile.
出处
《弹箭与制导学报》
CSCD
北大核心
2011年第6期69-72,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
Levy法
气动舵机
系统辨识
频率特性
Levy method
pneumatic actuator
system identification
frequency characteristics
作者简介
朱萌（1981-），男，新疆和静人，硕士研究生，研究方向：舵机设计与控制。
