Research Article
Parameter-Adaptive VMD Method Based on BAS Optimization Algorithm for Incipient Bearing Fault Diagnosis
Table 1
Information of the experimental bearing 6203.
| Geometric parameters | Outer race diameter, do | 40 mm | Inner race diameter, di | 17 mm | Rolling element diameter, d | 6.747 mm | Number of the rolling elements, z | 8 | Pitch diameter, D | 29 mm | Contact angle, | 0° | Spindle rotational frequency, fs | 30 Hz |
| Fault characteristic frequencies | Inner raceway, fi | 148 Hz | Outer raceway, fo | 92 Hz | Rolling element, fb | 122 Hz |
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