Research Article

Time-Frequency Fault Feature Extraction for Rolling Bearing Based on the Tensor Manifold Method

Table 4

Classification results of the inner-race fault using the PNN with traditional HHT time-frequency features.

Sample Category vector of the normal-state samples Category vector of the inner-race mild-damage
fault samples
Category vector of the inner-race moderate-damage
fault samples
Category vector of the inner-race severe-damage
fault samples

1100000.920.050.0300.110.870.0200.120.050.83
2100000.870.060.0700.060.890.0500.050.060.89
3100000.880.060.0600.070.910.0200.060.060.88
4100000.910.070.0200.030.920.0500.060.020.92
5100000.830.090.0800.060.900.0400.030.060.91
6100000.890.050.0600.090.860.0500.050.060.89
7100000.920.040.0400.050.910.0400.060.030.91
8100000.900.060.0400.030.920.0500.050.120.83
9100000.910.040.0500.090.860.0500.150.070.78
10100000.920.030.0500.050.890.0600.110.060.83