Research Article
Research on Fault Feature Extraction Method Based on NOFRFs and Its Application in Rotor Faults
Table 4
Comparison of Clenshaw–Curtis integral and int integral function results.
| Clearance (μm) | Clenshaw–Curtis integral | Int infinite integral | |
| Normal | 0.0670145365 | 0.0670145578 | 2.1289 × 10−8 | 100 | 0.3580265528 | 0.3580266286 | 7.5884 × 10−8 | 80 | 0.5712722586 | 0.5712723441 | 8.5445 × 10−8 | 60 | 0.6289452527 | 0.6289452534 | 7.0059 × 10−8 | 40 | 0.6855516020 | 0.6855515858 | 1.6181 × 10−8 | 20 | 0.7381875132 | 0.7381875624 | 4.9269 × 10−8 |
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