Hammerstein辨识模型在颤振试飞振动排故中的应用研究  

Applicative Study of Hammerstein Identification Model in Vibration Troubleshooting to Flutter Fight Test

作　　者：俱利锋[1] 寇宝智 Ju Lifeng;Kou Baozhi(Chinese Flight Test Establishment,Xi＇an 710089,China)

机构地区：[1]中国飞行试验研究院,陕西西安710089

出　　处：《航空科学技术》2018年第11期25-31,共7页Aeronautical Science & Technology

摘　　要：本文对颤振机理和非线性气动弹性主要诱发因素进行了分析,介绍了Hammerstein模型,研究分析了基于Hammerstein模型的某型飞机颤振试飞异常振动排故适用性。试验过程根据实际的现象特征给出了具体故障排除方法,经地面试验和飞行试验结果表明,故障得到了有效排除。所使用的故障诊断和分析方法可以为以后类似问题的解决提供有益的参考和借鉴。This paper gave brief introduction to flutter mechanism and the cause of nonlinear aeroelasticity. Then it gave detailed analysis and introduction to Hammerstein model and the troubleshooting procedure of unusual vibration to flutter flight test in an airplane. It gave concrete troubleshooting measurement based on the actual characteristic in the process of test, and it was proved by the ground test and flight test that the failure had been eliminated effectively. The ways of failure diagnosis and analysis can provide useful reference for the similar problem in the future.

关 键 词：颤振 飞行试验 非线性 间隙 H&mmerstein模型 辨识 

分 类 号：V217.39[航空宇航科学与技术—航空宇航推进理论与工程]