Research Article
Application of FIFD-OMGD-1.5D Teager Energy to Extract Microfault Features of Rolling Bearing
Table 8
Computational time and error analysis of fault feature frequency for different algorithms.
| | Algorithm | Computational time (s) | FCF (Hz) | Relative error |
| | True | — | 123.32 | | | FIFD-OMGD (based on protrugram algorithm) | 42.653022 | 124.1 | 0.006325 | | FIFD-OMGD (based on fast kurtogram algorithm) | 133.733360 | 38.78 | 0.685534 | | CEEMDAN-OMGD | 174.489326 | 121.5 | 0.014758 | | FIFD-MCKD | 107.101329 | 122.9 | 0.003406 |
|
|
