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

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

Mathematical Problems in Engineering

fig11

Figure 11

Figure 11: Fault Diagnosis of Wheel Flat Using Empirical Mode Decomposition-Hilbert Envelope Spectrum 