Shock and Vibration / 2017 / Article / Fig 5

Research Article

Rolling Bearing Reliability Assessment via Kernel Principal Component Analysis and Weibull Proportional Hazard Model

Figure 5

High test lifetime relative feature data (overall degradation process).
(a) Time domain—RMS
(b) Time domain—peak-peak value
(c) Time domain—kurtosis
(d) Time domain—peak factor
(e) Frequency domain—spectrum mean
(f) Frequency domain—spectrum variance
(g) Frequency domain—spectrum RMS
(h) Time-frequency domain—E3
(i) Time-frequency domain—E7
(j) Time-frequency domain—S3
(k) Time-frequency domain—S7
(l) The time of data collection