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- W2079078228 abstract "The faults in rotating machinery, caused by the clearance between the rotor and the stator, commonly lie on partial rub and looseness. These problems cause malfunctions in rotating machinery since they create strange vibrations coming from impact and friction. However, non-linear and non-stationary signals due to impact and friction are difficult to identify. Therefore, exact time and frequency information are needed for identifying these signals. For this purpose, a newly developed time-frequency analysis method, HHT(Hilbert-Huang Transform), is applied to the signals of partial rub and looseness from the experiment RK-4 rotor kit. Conventional signal processing methods such as FFT, STFT and CWT were compared to verify the effectiveness of fault diagnosis using HHT. The results showed that the impact signals were generated regularly when partial rub occurred but that intermittent impact and friction occurred irregularly when looseness occurred. The time and frequency information was represented exactly by using HHT in both cases, which makes clear fault diagnosis between partial rub and looseness." @default.
- W2079078228 created "2016-06-24" @default.
- W2079078228 creator A5072696819 @default.
- W2079078228 date "2009-01-01" @default.
- W2079078228 modified "2023-09-27" @default.
- W2079078228 title "Fault Diagnosis of Rotating Machinery Due to Clearance Using Hilbert-Huang Transform" @default.
- W2079078228 doi "https://doi.org/10.1115/detc2009-86332" @default.
- W2079078228 hasPublicationYear "2009" @default.
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