A Comparative Study of Four Nonlinear Dynamic Characteristics in Feature Extraction of Bearing Fault Diagnosis

Table 2

Recognition rates of four bearing signals based on KNN for each nonlinear dynamic characteristic.

Characteristic	N-100	B-121	IR-108	OR-108	ARR
LZC	84%	23%	100%	18%	55%
DE	88%	72%	76%	100%	84%
FD	100%	100%	100%	96%	99%
LE	68%	28%	36%	60%	48%