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- W2092729936 abstract "Vibration-based condition monitoring and fault diagnosis technique is a most effective approach to maintain the safe and reliable operation of rotating machinery. Unfortunately, the vibration signal always exhibits non-linear and non-stationary characteristics, which makes vibration signal analysis and fault feature extraction very difficult. To extract the significant fault features, a vibration analysis method based on hybrid techniques is proposed in this paper. Firstly, the raw signals are decomposed into a few product functions (PFs) using local mean decomposition (LMD), and meanwhile instantaneous frequency and instantaneous amplitude also are obtained. Subsequently, Fourier transform is performed on the derived PFs, and then, according to the spectra features, the useful PFs are selected to reconstruct the purified vibration signals. Lastly, several different fault features are fused to illustrate the operating state of the machinery. The experimental results show that the proposed method can accurately extract machine fault features, which proves that the combined application of LMD and other signal processing techniques is a successful scheme for the machine vibration analysis." @default.
- W2092729936 created "2016-06-24" @default.
- W2092729936 creator A5054386334 @default.
- W2092729936 creator A5088305867 @default.
- W2092729936 date "2013-11-01" @default.
- W2092729936 modified "2023-09-27" @default.
- W2092729936 title "A vibration analysis method based on hybrid techniques and its application to rotating machinery" @default.
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- W2092729936 doi "https://doi.org/10.1016/j.measurement.2013.07.014" @default.
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