Research Article

Fault Diagnosis for Reducer via Improved LMD and SVM-RFE-MRMR

Table 1

Feature parameters list.

Feature parametersā€‰
rms1kpf1app_pf1HF1rms2kpf2app_pf2HF2

TypeNormal PF1Normal PF2
12.512.770.133.451.070.7901.86
12.672.670.143.621.010.870.011.82
12.833.130.122.941.171.130.011.9
TypeBroken tooth PF1Broken tooth PF2
27.286.390.55.921.991.390.313.6
210.37.980.55.812.151.690.223.56
210.787.570.616.71.5430.143.51
TypeInner circle fault PF1Inner circle fault PF2
35.898.90.385.832.151.630.193.1
36.857.990.425.411.541.850.183.6
35.985.120.474.991.472.060.213.16
TypeOuter circle fault PF1Outer circle fault PF2
47.88.450.254.192.051.310.23.17
47.58.320.214.421.531.380.253.19
48.388.370.334.221.881.260.233.15

Notes. : RMS, : Kurtosis, : Approximate Entropy, : Power Spectrum Entropy.