民机方向舵伺服作动系统频率特性分析研究

现代飞机越来越多地采用电传飞控技术,相较机械系统具有便于多功能综合、易于实现主动控制的优势。舵回路作为电传飞控系统的重要组成部分,用于执行控制指令实现舵面偏转,其控制特性对飞行品质影响至关重要。就某民机方向舵伺服作动系统进行频域特性的分析研究,建立数学模型,仿真分析其频域特性,并通过铁鸟综合实验台验证仿真结果。

Frequency Characteristic Analysis of the Rudder Servo Actuator System for the Civil Aircraft

Fly-by-wire flight control system is more and more applied in modern airplanes. It's easier to integrate multi-functions andeasier to apply active control technology in contrast with mechanical control system. Rudder loop drives the rudder by control command. The rudder loop control characteristic is essential to the handling quality. A math model is established for the rudder servo actuator system of a civil aircraft in this paper. The frequency characteristic is studied by simulation. The simulation result is verified by the iron-bird test bench.