Research Article
Deep Transfer Learning-Based Fault Diagnosis for Gearbox under Complex Working Conditions
| Step | Process parameter | Equation |
| 1 | Intracategory distance | | 2 | Average intracategory distance | | 3 | Difference of intracategory distance | | 4 | Average of each feature | | 5 | Average intercategory distance | | 6 | Difference between categories | | 7 | Distance weighting factor | | 8 | Distance evaluation factor | | 9 | Intracategory standard deviation | | 10 | Average intracategory standard deviation | | 11 | Difference of intracategory standard deviation | | 12 | Distance of each feature | | 13 | Quadratic sum of feature distance | | 14 | Standard deviation of feature distance (intracategory cohesion) | | 15 | Average intercategory cohesion difference | | 16 | Imparity measure of intercategory cohesion difference | | 17 | Cohesion weighting factor | | 18 | Cohesion factor | |
|
|