Research Article
An Experiment Monitoring Signals of Coal Bed Simulation under Forced Vibration Conditions
Table 15
IMF component energy percentage for selected effective microseism signals by EEMD.
| IMF components | Working condition 29 (%) | Working condition 35 (%) | Working condition 37 (%) | Working condition 41 (%) | Working condition 47 (%) |
| IMF_h1 | 66.8 | 80.3 | 10 | 85.4 | 55.9 | IMF_h2 | 15.6 | 10.4 | 11.3 | 13.6 | 42.4 | IMF_h3 | 14.2 | 5.74 | 61.2 | 0.49 | 1.23 | IMF_h4 | 2.88 | 3.05 | 16.3 | 0.311 | 0.293 | IMF_h5 | 0.222 | 0.374 | 0.959 | 0.0857 | 0.0826 | IMF_h6 | 0.115 | 0.0826 | 0.146 | 0.0317 | 0.0314 | IMF_h7 | 0.0434 | 0.0449 | 0.0343 | 0.016 | 0.0161 | IMF_h8 | 0.0249 | 0.0198 | 0.0222 | 0.0088 | 0.00861 | IMF_h9 | 0.0356 | 0.00868 | 0.00808 | 0.00421 | 0.0042 | IMF_h10 | 0.0218 | 0.00266 | 0.00393 | 0.00286 | 0.00213 | IMF_h11 | 0.0113 | 0.000972 | 0.00388 | 0.00128 | 0.0012 | IMF_h12 | 0.00279 | 0.000577 | 0.00114 | 0.000586 | 0.000455 | IMF_h13 | 0.000226 | 0.000359 | 0.00086 | 0.000305 | 0.000322 | IMF_h14 | 0.000126 | 0.000242 | 0.00114 | 0.000217 | 0.000105 | IMF_h15 | 0.00023 | 0.000248 | | | 0.000184 | IMF_h16 | 0.000115 | | — | | — | IMF_h17 | 0.000104 | — | — | — | — |
|
|