Dynamic Analysis of a Rotating Cardan Shaft under the Influence of a Breathing Crack and Dense Fluid Force

Figure 8

Time-frequency representation of unbalanced and cracked input shaft1 and shaft 2 at 1447.74 rpm. (a) IF of the unbalanced and cracked driveshaft. (b) IF of the unbalanced driven shaft. (c) 3D representation of an unbalanced-cracked driveshaft. (d) 3D corresponding unbalanced driven shaft. (e) NSTFT from synchrosqueezing wavelet. (f) Corresponding NSTFT of the driven shaft.

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