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Teager-Huang变换在齿轮裂纹故障诊断中的应用 被引量:13

Application of Teager-Huang Transform to Crack Fault Diagnosis of Gear
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摘要 提出了一种基于Teager-Huang变换的齿轮箱故障诊断方法,该方法综合利用了经验模态分解(empiricalmode decomposition,简称EMD)和Teager能量算子分析技术。由于EMD方法具有自适应的分析能力,首先利用EMD把时间序列信号分解成不同特征时间尺度的固有模态函数,然后用Teager能量算子计算各固有模态函数的瞬时幅值和瞬时频率,得到Teager-Huang变换时频谱。齿轮箱齿轮裂纹故障振动试验信号的研究结果表明:Teager-Huang变换时频谱优于Hilbert-Huang变换时频谱,能有效地识别齿轮的裂纹故障。 A new approach to crack fault diagnosis of a gear based on the Teager-Huang transform is presented.This method integrates the empirical mode decomposition(EMD)with the Teager Kaiser energy operator(TKEO)technique.The EMD method is self-adaptive to non-stationary and non-linear signal analyses.The method developed in this paper decomposes original times series data into a series of zero mean amplitude modulation-frequency modulation(AM-FM)intrinsic mode functions(IMFs)by using EMD.TKEO can track the instantaneous amplitude and frequency of the AM-FM component at any moment.Experimental examples were conducted to evaluate the effectiveness of the proposed approach.The results show that the performance of the Teager-Huang transform is better than that of the Hilbert-Huang transform for gear fault monitoring and can effectively diagnose the gear crack faults.
出处 《振动.测试与诊断》 EI CSCD 北大核心 2010年第1期1-5,共5页 Journal of Vibration,Measurement & Diagnosis
基金 国家自然科学基金资助项目(编号:50975185 50775219)
关键词 Teager—Huang变换 经验模态分解 故障诊断 齿轮 时频分析 Teager-Huang transform empirical mode decomposition faults diagnosis gear time-frequency analysis
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参考文献9

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二级参考文献22

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  • 2杨宇,于德介,程军圣.基于EMD与神经网络的滚动轴承故障诊断方法[J].振动与冲击,2005,24(1):85-88. 被引量:145
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