A Novel MPE-LPP-ELM Recognition Method for the Fault Diagnosis of Spiral Bevel Gears

Table 1

The MPE and S_k of the reconstructing signal.

The scale factor f	Failure mode				Sk
	Ac	Bc	Cc	Dc
1	0.989	0.991	0.974	0.959	0.111
2	0.991	0.986	0.980	0.939	0.162
3	0.988	0.967	0.953	0.940	0.158
4	0.975	0.967	0.958	0.996	0.122
5	0.982	0.985	0.989	0.995	0.043
…	…	…	…	…	…
12	0.982	0.984	0.968	0.976	0.054
13	0.975	0.989	0.984	0.972	0.060
14	0.987	0.973	0.979	0.985	0.048
15	0.989	0.986	0.980	0.981	0.032