Fault Diagnosis of a Hydraulic Pump Based on the CEEMD-STFT Time-Frequency Entropy Method and Multiclass SVM Classifier

Table 3

Classification results of the testing data.

Fault pattern	Actual label	Index	No.	Feature 1	Feature 2	Feature 3	Predicted label
Normal	1	1	11	4.0906	2.9178	5.5591	1
		2	12	4.0961	2.9253	5.5036	1
		⋯	⋯				1
		10	20	3.9954	2.9829	5.5353	1
Rotor wear	2	11	31	3.7442	2.0107	5.1790	2
		12	32	3.6416	2.1110	5.1027	2
		⋯	⋯				2
		20	40	3.5266	2.1772	5.1467	2
Swash plate wear	3	21	51	3.3093	2.5163	5.1968	3
		22	52	3.3018	2.4982	5.2170	3
		⋯	⋯				3
		30	60	3.3408	2.5041	5.1157	3