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

Table 4

Parameter estimation of WPHM.

Parameters
Estimates (non-time-dependent)	1.8207	110.7	4.103	−0.5075	0.3837
Estimates (time-dependent)	1.0723	36.24	7.526	−1.6423	−0.8847