Improved Hilbert-Huang transform and its application in rotor-stator rub

HE Tian; LIU Xian-dong; SHAN Ying-chun; LI Qi-han

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Improved Hilbert-Huang transform and its application in rotor-stator rub

更新时间：2026-07-07

- Improved Hilbert-Huang transform and its application in rotor-stator rub
- Vol. 22, Issue 10, (2007)
- 作者机构：
  
  1. 北京航空航天大学能源与动力工程学院,北京,100083
  2. 北京航空航天大学汽车工程系,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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HE Tian, LIU Xian-dong, SHAN Ying-chun, et al. Improved Hilbert-Huang transform and its application in rotor-stator rub[J]. 2007, 22(10).
DOI：

HE Tian, LIU Xian-dong, SHAN Ying-chun, et al. Improved Hilbert-Huang transform and its application in rotor-stator rub[J]. 2007, 22(10). DOI：

摘要

针对Hilbert-Huang变换(HHT)的不足

应用时间序列重构矩阵奇异值分解的能量分析方法改进了HHT

并提出了用来识别伪固有模态函数(IMF)的方法.利用仿真信号检验了改进HHT的效果.将改进后的HHT应用到某双转子航空发动机轻碰摩故障仿真试验结果的检测中

并与改进前HHT和小波分析的结果进行了比较

得出了改进后的HHT具有有效分离出微弱信号分量等优势

且能比小波变换更好地确定碰摩的存在.

Abstract

In order to overcome the shortages of Hilbert-Huang transform(HHT)

an improved HHT was proposed by the energy analysis method based on the singularity value decomposition of the track matrix reconstructed by time series

and a method for judging the pseudo-IMFs by empirical mode decomposition(EMD) was also presented.The advantages of improved HHT were verified from simulation signals.Then

the improved HHT was applied to detect the slight rubbing simulation of dual-rotor aero engine.The simulation results were compared with previous HHT and wavelet transform

respectively

showing that the improved HHT has the advantage of separating efficiently the weak component of signals from other strong components

and also confirming the slight rubbing more easily.The analytical results provide a useful reference for diagnosing the fault of rubbing.

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Related Author

HE Tian

LIU Xian-dong

LU Si-da

GAO Xi-guang

SONG Ying-dong

WENG Xiao-chai

GUO Rong-wei

ZHU Dan-dan

Related Institution

School of Transportation Science and Engineering,Beijing University of Aeronautics and Astronautics

Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics

Department of Power and Propulsion, School of Engineering, Cranfield University, Bedfordshire MK4

State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics

Unit 94710, the Chinese People's Liberation Army

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