基于ARMA-NExT和稳定图方法的飞行器工作模态指示研究  

STUDY ON THE INDICATION OF THE AIRCRAFT OPERATIONAL MODE BASED ON ARMA-NEXT AND STABILIZATION DIAGRAM

作　　者：王亮[1] 张妍[1] 周晓丽[1] 商霖[1] 朱辰[1] 蔡毅鹏 

机构地区：[1]中国运载火箭技术研究院,北京100076

出　　处：《动力学与控制学报》2016年第3期258-262,共5页Journal of Dynamics and Control

基　　金：南京航空航天大学国家重点实验室2015年开放课题(MCMS-0115G01)~~

摘　　要：研究了基于飞行遥测数据,使用环境激励模态辨识方法辨识系统的模态参数时,挑选真实模态的方法.首先,详细介绍了ARMA-NEx T环境激励模态辨识方法的理论.接着,给出了模态指示因素,并详细分析了基于稳定图方法、频域和时频分析方法的真实模态筛选的方法.最后通过算例研究了飞行模态筛选的过程.研究发现,通过该方法得出结果与频域和时频分析结果基本一致.Based on the telemetry derived by ambient excitation is inv data, the technology to select the real modes for the aircraft operational mode estigated through ARMA-NExT method in this paper. Firstly, the theory of the ARMA-NExT method is introduced. Secondly, the mode indication is proposed, and the filter strategy is studied based on stabilization diagram, frequency and time-frequency analysis. Eventually, a case study is carried out. It is found that the identified modes reasonably match with the result of the frequency and time-frequency analysis.

关 键 词：模态辨识 ARMA-NExT 工作模态 稳定图 

分 类 号：V556[航空宇航科学与技术—人机与环境工程]