[1]苏中元,贾民平.基于希尔伯特-黄变换周期平稳类微弱故障信号检测[J].东南大学学报(自然科学版),2006,36(3):389-392.[doi:10.3969/j.issn.1001-0505.2006.03.011]
 Su Zhongyuan,Jia Minping.Detection of weak fault signal about cyclostationary by Hilbert-Huang transform[J].Journal of Southeast University (Natural Science Edition),2006,36(3):389-392.[doi:10.3969/j.issn.1001-0505.2006.03.011]
点击复制

基于希尔伯特-黄变换周期平稳类微弱故障信号检测()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
36
期数:
2006年第3期
页码:
389-392
栏目:
机械工程
出版日期:
2006-05-20

文章信息/Info

Title:
Detection of weak fault signal about cyclostationary by Hilbert-Huang transform
作者:
苏中元 贾民平
东南大学机械工程学院, 南京 210096
Author(s):
Su Zhongyuan Jia Minping
College of Mechanical Engineering, Southeast University, Nanjing 210096, China
关键词:
周期平稳 微弱故障 Hilbert谱
Keywords:
cyclostationary weak fault Hilbert spectrum
分类号:
TH165;TN911.7
DOI:
10.3969/j.issn.1001-0505.2006.03.011
摘要:
在希尔伯特-黄变换可以将振动信号分解为有限的模式函数的基础上,针对周期平稳类微弱故障信号难以检测到的问题,对信号进行经验模式分解,然后对本征模式函数进行希尔伯特变换; 接着通过希尔伯特谱对多频信号中的弱信号和仿真齿轮裂纹弱故障信号分析,得出多频信号中弱信号成分和其时间分布以及调相频率; 最后分析滚动轴承损伤弱故障,从希尔伯特谱中可以分析时频和振动量的分布情况,进而提取故障特征,分析出故障; 表明希尔伯特谱对周期平稳类微弱故障信号具有一定的分析能力.
Abstract:
Hilbert-Huang transform(HHT)can decompose the vibration signal as numbered mode functions. For solving the difficulty in detecting of weak fault signal about cyclostationary, a method is given. First, the signal is decomposed by the empirical mode decomposition(EMD)method. Secondly, the intrinsic mode function is dealt with by the Hilbert transform. Finally, the Hilbert spectrum is shown. The weak singularity signal in time domain and the simulation fault signal of gear flaw are presented. And the distribution of the weak signal component and the frequency of the phase modulation can be obtained from the Hilbert spectrum. Finally, the signal of the defect of rolling element bearing is analyzed by the Hilbert spectrum. The distribution of the time, frequency and the amplitude is shown by the Hilbert spectrum. Then the characterics of the weak fault signal is detected. The results demonstrate that the method is useful for detecting of weak fault signal about cyclostationary.

参考文献/References:

[1] Capdessus C,Sidahmed M,Lacoume J.Cyclostationary processes:application in gear faults early diagnosis[J]. Mechanical Systems and Signal Processing,2000,14(3):371-385.
[2] Huang Norden E,Zheng S,Steven R L,et al.The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis [C] // Proc R Soc Lond.London,1998,454:903-995.
[3] 李舜酩.二进离散小波能量谱及其对微弱信号的检测[J].中国机械工程,2004,5(15):394-397.
  Li Shunming.Detection of weak signal by energy spectrum of dyadic discrete wavelet [J]. China Mechanical Engineering,2004,5(15):394-397.(in Chinese)
[4] Zhao Zhidong,Pan Min,Chen Yuquan.Instantaneous frequency estimate for non-stationary signal[C] //IEEE Proceedings of the 5th World Congress on Intelligent Control and Automation.Hangzhou,China,2004:3641-3643.
[5] Huang Norden E.A new method for nonlinear and nonstationary time series analysis:empirical mode decomposition and Hilbert spectral analysis[J].Proceedings of SPIE,2000,4056(197):899-955.
[6] 贾民平,凌娟,许飞云,等.基于时序分析的经验模式分解法及其应用[J].机械工程学报,2004,40(9):54-57.
  Jia Minping,Ling Juan,Xu Feiyun,et al.Empirical mode decomposition based on time series analysis and its application [J].Chinese Journal of Mechanical Engineering,2004,40(9):54-57.(in Chinese)
[7] 杨龙兴,贾民平,许飞云,等.齿轮裂纹故障的循环矩诊断 [J].中国机械工程,2003,14(19):1621-1623.
  Yang Longxing,Jia Minping,Xu Feiyun,et al.Cyclic moment diagnosis for gear crack faults [J]. China Mechanical Engineering,2003,14(19):1621-1623.(in Chinese)
[8] 钟秉林,黄仁.机械故障诊断学[M].2版.北京:机械工业出版社,2002:155-166.
[9] Antoni J,Bonnardot F,Raad A,et al.Cyclostationary modeling of rotating machine vibration signals[J].Mechanical Systems and Signal Processing,2004,18(6):1285-1314.
[10] Mccormick A C,Nandi A K.Cyclosatationary in rotating machine vibrations[J]. Mechanical Systems and Signal Processing,1998,12(2):225-242.

相似文献/References:

[1]贾民平.周期平稳故障信号分析[J].东南大学学报(自然科学版),2006,36(3):346.[doi:10.3969/j.issn.1001-0505.2006.03.002]
 Jia Minping.Analysis of cyclostationary fault signal[J].Journal of Southeast University (Natural Science Edition),2006,36(3):346.[doi:10.3969/j.issn.1001-0505.2006.03.002]

备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助项目(50475078).
作者简介: 苏中元(1977—),男,博士生; 贾民平(联系人),男,博士,教授,博士生导师,mpjia@seu.edu.cn.
更新日期/Last Update: 2006-05-20