[1]杨龙兴,贾民平.旋转机械故障诊断的1 1/2维循环谱分析方法[J].东南大学学报(自然科学版),2004,34(6):766-770.[doi:10.3969/j.issn.1001-0505.2004.06.011]
 Yang Longxing,Jia Minping.Analysis method of rotation machinery fault diagnosis using 1 1/2 dimension cyclic spectrum[J].Journal of Southeast University (Natural Science Edition),2004,34(6):766-770.[doi:10.3969/j.issn.1001-0505.2004.06.011]
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旋转机械故障诊断的1 1/2维循环谱分析方法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
34
期数:
2004年第6期
页码:
766-770
栏目:
自动化
出版日期:
2004-11-20

文章信息/Info

Title:
Analysis method of rotation machinery fault diagnosis using 1 1/2 dimension cyclic spectrum
作者:
杨龙兴1 贾民平2
1 江苏技术师范学院机械工程系, 常州 213001; 2 东南大学机械工程系, 南京 210096
Author(s):
Yang Longxing1 Jia Minping2
1 Department of Mechanical Engineering, Jiangsu Teachers University of Technology, Changzhou 213001, China
2 Department of Mechanical Engineering, Southeast University, Nanjing 210096, China
关键词:
旋转机械故障 谱相关 非线性 1 1/2维循环谱
Keywords:
rotation machinery fault spectrum coherence nonlinear 1 1/2 dimension cyclic spectrum
分类号:
TP206
DOI:
10.3969/j.issn.1001-0505.2004.06.011
摘要:
首先介绍了谱相干及高阶循环累积量谱的定义,说明了高阶循环累积量谱具有的抑噪和相位保留的能力.但由于高阶循环累积量谱分析需要更长的时间序列,因此本文从循环谱相干定义出发,提出了利用1 1/2维循环谱区分线性与非线性特征的方法.指出1 1/2维循环谱分析方法,不仅保留了高阶循环累积量谱的抑制噪声、提取非线性耦合特征和分离循环平稳分量与平稳分量的能力,而且减少了所需时间序列长度,提高了监测的实时性,最后以非线性平方相位耦合信号和轴承故障信号为例进行了仿真验证.
Abstract:
This paper introduces high-order cyclic cumulation and spectrum coherence definition, and explains the high-order cyclic cumulation features which suppress noises and hold phase. Based on cyclic spectrum coherence definition, a method using 1 1/2 dimension cyclic spectrum to distinguish linear or nonlinear characteristic is presented since longer time series is required to analyze high-order cyclic cumulation. This method holds the high-order cyclic cumulation features in suppressing noises, extracting nonlinear coupling characteristic and separating cyclostationary component from stationary component, and decreases the analysis length of time series and increases the real time degree of inspection. The nonlinear square phase coupling signal and the bearing fault signal are used to simulate and testify the validity of this method.

参考文献/References:

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[3] Chow T W S,Fei Gou.Three phase induction machines asymmetrical faults identification using bispectrum [J]. IEEE Transactions on Energy Conversion, 1995,10(4):688-693.
[4] Bouillaut Laurent,Sidahmed Menad.Helicopter gearbox vibrations:cyclostationary analysis or bilinear approach?[A].In:Internation Symposium on Signal Processing and its Applications [C].Kuala Lumpur,Malaysia,2001.367-370.
[5] Goerlich J,Brückner D,Richter A,et al.Signal analysis using spectral correlation measurement [A].In:IEEE Instrumentation and Measurement Technology Conference [C].St.Paul,USA,1998.1313-1318.
[6] 陈进, 姜鸣.高阶循环统计理论在机械故障诊断中的应用[J].振动工程学报,2001,14(2):125-132.
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相似文献/References:

[1]杨龙兴,贾民平,许飞云,等.旋转机械故障的循环平稳度诊断[J].东南大学学报(自然科学版),2003,33(4):438.[doi:10.3969/j.issn.1001-0505.2003.04.014]
 Yang Longxing,Jia Minping,Xu Feiyun,et al.Rotary machine faults diagnosis using the degree of cyclostation[J].Journal of Southeast University (Natural Science Edition),2003,33(6):438.[doi:10.3969/j.issn.1001-0505.2003.04.014]
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备注/Memo

备注/Memo:
基金项目: 江苏省高等学校自然科学研究计划资助项目(03KJB460032)、 国家自然科学基金资助项目(50475078).
作者简介: 杨龙兴(1964—),男,博士,副教授,longxingyang@sohu.com.
更新日期/Last Update: 2004-11-20