A Composite Method of Marine Shafting’s Fault Diagnosis by Ship Hull Vibrations Based on EEMD

Table 1

Main datum of EEAF method and designated signal.

Parameters	SN
	1	2	3	4	5
Setting frequency	100 Hz	50 Hz	30 Hz	15 Hz	5Hz
Extracting frequency	100 Hz	50 Hz	30 Hz	15 Hz	5Hz
Error	0	0	0	0	0
Setting amplitude	0.6	1	0.8	0.6	0.6
Extracting amplitude	0.6162	0.986	0.7856	0.5932	0.5829
Error	2.7%	1.4%	1.8%	1.133%	2.85%