| Summary: | 碩士 === 中原大學 === 機械工程研究所 === 98 === The paper applies the planet gear deceleration machine for fault diagnosis analysis of study, Because of the gear rises to change down the stage is one kind of unsteady process, is unable to conform to Fourier to transform to the signal stable request, therefore, cannot use conventional the spectral analysis method to carry on the analysis processing, so this use of order tracking based on Hilbert-Huang transform method to analyze unsteady signal. At first carries on the experience modality decomposition to the vibration signal to obtain the signal inherent modality function, Then obtained for each intrinsic mode function of the
received signal after Hilbert transform instantaneous frequency, and then obtains the signal impulse to correspond the vibration signal the resampled time, according to this resampled time to the original signal carries on resampled in angle-domain, finally using order tracking to analyze resampling signal. The simulated signal and the example analysis has confirmed this method accuracy and the reliability.
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