Research Article
A Novel Method for Identifying Resonance Frequency Band in Weak Bearing Fault Diagnosis of Electric Driving System
Figure 16
The comparison among FK, HTMFK, Protrugram, and SVD under 3000 rpm & 50 N·m. (a) FK, = 520.83 Hz, = 208.33 Hz. (b) HTMFK, = 8750 Hz, = 2500 Hz. (c) Protrugram, = 1590 Hz, = 800 Hz. (d) Spectrum of reconstructed signal by SVD.
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