Table 1 Infinite variance process parameters of the fault signals.
From: Robust post-processing time frequency technology and its application to mechanical fault diagnosis
Fault type | Measurement point | Infinite variance process parameters | ||||
|---|---|---|---|---|---|---|
\(\alpha\) | \(\beta\) | \(\gamma\) | \(\mu\) | |||
No fault | DE | 2.0 | − 1 | 0.0452 | 0.0136 | |
FE | 2.0 | 0.9365 | 0.0485 | 0.031 | ||
Inner race fault | DE | 1.8883 | − 0.1190 | 0.4030 | 0.0061 | |
FE | 1.7119 | 0.1119 | 0.1241 | 0.0318 | ||
Ball fault | DE | 2.0 | 0.3951 | 0.1208 | 0.0086 | |
FE | 2.0 | 0.3957 | 0.0587 | 0.0296 | ||
Fault position | Centered at 6:00 | DE | 1.1559 | − 0.0162 | 0.1393 | 0.0110 |
FE | 1.4784 | − 0.0497 | 0.0905 | 0.0289 | ||
Orthogonal at 3:00 | DE | 1.4039 | 0.0784 | 0.3544 | 0.0353 | |
FE | 1.5435 | 0.0354 | 0.1256 | 0.0361 | ||
Opposite at 12:00 | DE | 1.1584 | − 0.0149 | 0.1256 | 0.0167 | |
FE | 1.6424 | − 0.0526 | 0.0732 | 0.0308 | ||
