Identification of Vibration Signal for Residual Pressure Utilization Hydraulic Unit Using MRFO-BP Neural Network

Figure 5

Contrast waveform of vibration signals before and after denoising. (a) X direction at the inlet of 1# unit; (b) Y direction at the inlet of 1# unit; (c) X direction at the inlet of 3# unit; (d) Y direction at the inlet of 3# unit; (e) X direction at the inlet of 4# unit; (f) Y direction at the inlet of 4# unit.

(a)

(b)

(c)

(d)

(e)

(f)