| 基于谐波小波包能量熵的轴承故障实时诊断 |
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| 引用本文： | 丁建明,林建辉,任愈,杨强.基于谐波小波包能量熵的轴承故障实时诊断[J].机械强度,2011,33(4):483-487. |
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| 作者姓名： | 丁建明 林建辉 任愈 杨强 |
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| 作者单位： | 西南交通大学牵引动力国家重点实验室,成都,610031 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)(2007CB714706,2007CB714701); “十一五”国家科技支撑计划(2008BAQG0010)资助项目~~ |
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| 摘 要： | 将谐波小波包变换与信息熵相结合,从揭示故障信号能量分布的复杂程度入手,提出一种轴承故障实时诊断的新方法.对故障振动信号进行谐波小波包分解,将分解的小波系数按尺度进行排列,计算不同尺度的能量,以尺度能量为划分标准,计算故障信号的能量熵,通过能量的熵值诊断轴承故障.给出谐波小波包能量熵的轴承故障的具体诊断方法和模型.对不同...
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| 关 键 词： | 轴承故障 谐波小波包分解 信息熵 实时诊断 |
REAL-TIME DIAGNOSIS OF BEARING FAULTS BASED ON HARMONIC WAVELET ENERGY ENTROPY |
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| DING JianMing,LIN JianHui,REN Yu,YANG Qiang.REAL-TIME DIAGNOSIS OF BEARING FAULTS BASED ON HARMONIC WAVELET ENERGY ENTROPY[J].Journal of Mechanical Strength,2011,33(4):483-487. |
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| Authors: | DING JianMing LIN JianHui REN Yu YANG Qiang |
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| Affiliation: | DING JianMing LIN JianHui REN Yu YANG Qiang (State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | A new method for real-time diagnosis of bearing faults is proposed,based on harmonic wavelet packet transform and Shannon entropy.The vibration signals were transformed by using harmonic wavelet packet to get harmonic wavelet packet coefficients.The wavelet coefficients were arranged to computer energies in different scales.The energy entropy was computed in the partition criteria of scale energy to diagnose bearing faults.The concrete diagnosis model based on harmonic wavelet packet energy entropy was pres... |
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| Keywords: | Bearing faults Harmonic wavelet packet transformation Shannon entropy Real-time diagnosis |
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