Table 2
The main period and its corresponding parameters.
| Name | The variance | Wavelet decomposition | The vibration | |||
|---|---|---|---|---|---|---|
| Amplitude | Ratio | Scale | Numerical relationship | Frequency/Hz | Numerical relationship | |
| The fifth main period | 3.7 × 10⁻3 | 1 | 6 | 20 | 264.9131 | 23 |
| The fourth main period | 4.5 × 10⁻3 | 1.69 | 11 | 21 | 130.0127 | 22 |
| The third main period | 5.0 × 10⁻3 | 1.71 | 20 | 21.7 | 78.2031 | 21.3 |
| The second main period | 5.1 × 10⁻3 | 1.91 | 27 | 22 | 56.6973 | 21 |
| The first main period | 8.6 × 10⁻3 | 2.32 | 43 | 23 | 32.26 | 20 |
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