Open Access
表6
粉红噪声激励不同状态的次级声源特征值参数
| 故障状态 | f0/Hz | f1/Hz | f2/Hz | Zmax | r0 | Q | Δf0/% | ΔQ/% |
| 正常 | 122.0 | 111.5 | 132.2 | 25.06 | 4.476 5 | 1.316 6 | 0 | 0 |
| 折环开裂 | 90.0 | 80.4 | 100.1 | 25.39 | 4.649 9 | 0.982 5 | 26.23 | 25.38 |
| 定心支片破损 | 100.0 | 90.8 | 110.8 | 25.30 | 4.601 9 | 1.086 5 | 18.03 | 17.48 |
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