Acta Physica Sinica, Volume. 68, Issue 23, 238401-1(2019)
Fig. 2. The process of using PSO to optimize recursive VMD parameter.基于PSO优化改进递归VMD参数流程
Fig. 3. Analog signal and its component waveform: (a)
Fig. 4. The results of EMD: (a) IMF1; (b) IMF2; (c) IMF3; (d) IMF4; (e) IMF5; (f) res.EMD分解结果 (a) IMF1; (b) IMF2; (c) IMF3; (d) IMF4; (e) IMF5; (f) res
Fig. 5. The results of EEMD: (a) IMF1; (b) IMF2; (c) IMF3; (d) IMF4; (e) IMF5; (f) IMF6; (g) IMF7; (h) res.EEMD分解结果 (a) IMF1; (b) IMF2; (c) IMF3; (d) IMF4; (e) IMF5; (f) IMF6; (g) IMF7; (h) res
Fig. 6. The results of ORVMD: (a) IMF1; (b) IMF2; (c) IMF3.ORVMD分解结果 (a) IMF1; (b) IMF2; (c) IMF3
Fig. 7. Early inner race fault diagnosis signal.早期轴承内圈故障信号 (a) 时域; (b) 频谱
Fig. 8. The results of EEMD for fault signal: (a) IMF1; (b) IMF2; (c) IMF3; (d) IMF4; (e) IMF5; (f) IMF6; (g) IMF7; (h) IMF8; (i) IMF9; (j) IMF10; (k) IMF11; (l) IMF12.故障信号EEMD分解结果 (a) IMF1; (b) IMF2; (c) IMF3; (d) IMF4; (e) IMF5; (f) IMF6; (g) IMF7; (h) IMF8; (i) IMF9; (j) IMF10; (k) IMF11; (l) IMF12
Fig. 9. The results of ORVMD for fault diagnosis: (a) IMF1; (b) IMF2; (c) IMF3; (d) IMF4; (e) IMF5; (f) IMF6; (g) IMF7; (h) IMF8; (i) IMF9.故障信号ORVMD分解结果 (a) IMF1; (b) IMF2; (c) IMF3; (d) IMF4; (e) IMF5; (f) IMF6; (g) IMF7; (h) IMF8; (i) IMF9
Fig. 10. The duration of calculation for VMD and ORVMD.VMD与ORVMD计算耗时
Parameter set of ORVMD.
ORVMD参数组合
Parameter set of ORVMD.
ORVMD参数组合
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Zi-Fei Xu, Min-Nan Yue, Chun Li.
Received: Jun. 30, 2019
Accepted: --
Published Online: Sep. 17, 2020
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