Research Article
An Experiment Monitoring Signals of Coal Bed Simulation under Forced Vibration Conditions
Table 5
Setting of experimental parameters.
| Working condition | Frequency (hz) | Input acceleration | Vibration duration (s) | Vibration cycles | Working condition | Frequency (hz) | Input acceleration | Vibration duration (s) | Vibration cycles |
| 1 | White noise | 0.02 g | 15.0 | — | 43 | 30 | 0.5 g | 8.0 | 240 | 2 | 1 | 0.02 g | 30.0 | 30 | 44 | White noise | 0.02 g | 15.0 | — | 3 | 5 | 0.02 g | 6.0 | 30 | 45 | 32 | 0.5 g | 7.5 | 240 | 4 | 10 | 0.02 g | 6.0 | 60 | 46 | White noise | 0.02 g | 15.0 | — | 5 | 15 | 0.02 g | 4.0 | 60 | 47 | 34 | 0.5 g | 7.1 | 240 | 6 | 20 | 0.02 g | 3.0 | 60 | 48 | White noise | 0.02 g | 15.0 | — | 7 | 24 | 0.02 g | 5.0 | 120 | 49 | 24 | 0.75 g | 10.0 | 240 | 8 | White noise | 0.02 g | 15.0 | — | 50 | White noise | 0.02 g | 15.0 | — | 9 | 1 | 0.1 g | 30.0 | 30 | 51 | 27 | 0.75 g | 8.9 | 240 | 10 | White noise | 0.02 g | 15.0 | — | 52 | White noise | 0.02 g | 15.0 | — | 11 | 5 | 0.1 g | 6.0 | 30 | 53 | 30 | 0.75 g | 8.0 | 240 | 12 | White noise | 0.02 g | 15.0 | — | 54 | White noise | 0.02 g | 15.0 | — | 13 | 10 | 0.1 g | 12.0 | 120 | 55 | 32 | 0.75 g | 7.5 | 240 | 14 | White noise | 0.02 g | 15.0 | — | 56 | White noise | 0.02 g | 15.0 | — | 15 | 15 | 0.1 g | 8.0 | 120 | 57 | 34 | 0.75 g | 7.1 | 240 | 16 | White noise | 0.02 g | 15.0 | — | 58 | White noise | 0.02 g | 15.0 | — | 17 | 20 | 0.1 g | 6.0 | 120 | 59 | 28 | 1.5 g | 8.6 | 240 | 18 | White noise | 0.02 g | 15.0 | — | 60 | White noise | 0.02 g | 15.0 | — | 19 | 24 | 0.1 g | 5.0 | 120 | 61 | 29 | 1.5 g | 8.3 | 240 | 20 | White noise | 0.02 g | 15.0 | — | 62 | White noise | 0.02 g | 15.0 | — | 21 | 27 | 0.1 g | 4.4 | 120 | 63 | 30 | 1.5 g | 8.0 | 240 | 22 | White noise | 0.02 g | 15.0 | — | 64 | White noise | 0.02 g | 15.0 | — | 23 | 30 | 0.1 g | 4.0 | 120 | 65 | 31 | 1.5 g | 7.7 | 240 | 24 | White noise | 0.02 g | 15.0 | — | 66 | White noise | 0.02 g | 15.0 | — | 25 | 32 | 0.1 g | 3.8 | 120 | 67 | 32 | 1.5 g | 7.5 | 240 | 26 | White noise | 0.02 g | 15.0 | — | 68 | White noise | 0.02 g | 15.0 | — | 27 | 34 | 0.1 g | 3.5 | 120 | 69 | 33 | 1.5 g | 7.3 | 240 | 28 | White noise | 0.02 g | 15.0 | — | 70 | White noise | 0.02 g | 15.0 | — | 29 | 2 | 0.5 g | 15.0 | 30 | 71 | 34 | 1.5 g | 7.1 | 240 | 30 | White noise | 0.02 g | 15.0 | — | 72 | White noise | 0.02 g | 15.0 | — | 31 | 5 | 0.5 g | 6.0 | 30 | 73 | 36 | 1.5 g | 6.7 | 240 | 32 | White noise | 0.02 g | 15.0 | — | 74 | White noise | 0.02 g | 15.0 | — | 33 | 10 | 0.5 g | 12.0 | 120 | 75 | 35 | 1.5 g | 57.1 | 2000 | 34 | White noise | 0.02 g | 15.0 | — | 76 | White noise | 0.02 g | 15.0 | — | 35 | 15 | 0.5 g | 8.0 | 120 | 77 | 20 | 1.5 g | 24.0 | 480 | 36 | White noise | 0.02 g | 15.0 | — | 78 | White noise | 0.02 g | 15.0 | — | 37 | 20 | 0.5 g | 6.0 | 120 | 79 | 15 | 1.2 g | 16.0 | 240 | 38 | White noise | 0.02 g | 15.0 | — | 80 | White noise | 0.02 g | 15.0 | — | 39 | 24 | 0.5 g | 10.0 | 240 | 81 | 10 | 1.5 g | 24.0 | 240 | 40 | White noise | 0.02 g | 15.0 | — | 82 | White noise | 0.02 g | 15.0 | — | 41 | 27 | 0.5 g | 8.9 | 240 | 83 | 5 | 2.4 g | 24.0 | 120 | 42 | White noise | 0.02 g | 15.0 | — | | | | | |
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