Research Article
Fault Diagnosis Method of Rotating Machinery Based on Collaborative Hybrid Metaheuristic Algorithm to Optimize VMD
Table 4
Performance comparison of different optimization methods.
| | Methods | Running time | Difference between parameter selection result and theoretical real value (difference ratio on frequency axis, unit: ‰) |
| | Ergodic method | | 0.08 (158.4) | | MOEA | | 9.44 (214.6) | | NSGA II | | 0.28 (159.6) | | MOPSO | | 5.08 (188.4) | | NSGA II MOPSO | | 0.08 (158.4) |
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