Fault Diagnosis of Wheel Flat Using Empirical Mode Decomposition-Hilbert Envelope Spectrum

<div>Hilbert envelope spectrum based on EMD with single flat having different lengths. (a) Hilbert envelope spectrum of IMF1 with different length flats. (b) The sum of Hilbert envelope spectrum of IMF1-IMF3 with different length flats.</div>

Mathematical Problems in Engineering

fig4

Figure 4

Figure 4: Fault Diagnosis of Wheel Flat Using Empirical Mode Decomposition-Hilbert Envelope Spectrum 