基于高阶等效系统的飞行品质辨识方法  

Flying quality identification method based on a high-order equivalent system

作　　者：杨媚[1] 王启[2] 简政[1] YANG Mei;WANG Qi;JIAN Zheng(Aircraft Flight Test Technology Institute, Chinese Flight Test Establishment, Xi＇ an 710089, China;Department of Planning and Development, Chinese Flight Test Establishment, Xi＇ an 710089, China)

机构地区：[1]中国飞行试验研究院飞机所,陕西西安710089 [2]中国飞行试验研究院规划发展部,陕西西安710089

出　　处：《飞行力学》2017年第6期16-19,共4页Flight Dynamics

摘　　要：为了得到电传飞机的本体参数,分离出控制系统的影响,提出了一种高阶等效系统的概念。通过将电传飞机的传递函数分成飞机本体的短周期运动模型和等效控制系统模型两部分,讨论和分析了1G构型传递函数的仿真数据基于高阶等效系统模型的参数辨识原理。计算结果表明,高阶等效系统的辨识方法是可信的,可以得到电传飞机的本体动态参数。In order to obtain aircraft airframe parameters and isolate the control system effect,a high-order equivalent system model concept was provided. High-order equivalent system model was composed of aircraft original open-looped short period dynamic model and equivalent control system model,identification principle based on high-order equivalent system model for simulation data of 1 G configuration＇s transfer function was discussed and analyzed. The results show that high-order equivalent system method is credible and can obtain airframe parameters of fly-by-wire aircraft.

关 键 词：电传飞机 高阶等效系统模型 参数辨识 

分 类 号：V212.12[航空宇航科学与技术—航空宇航推进理论与工程]