Research Article
Risk Analysis of Coupling Fault Propagation Based on Meta-Action for Computerized Numerical Control (CNC) Machine Tool
Table 4
Meta-actions and corresponding failure modes.
| Code | Failure mode |
| A1 | No action | A2 | Rising instability | A3 | The exchange noise is large | Inappropriate motion | A4 | No action | A5 | Rotary Instability | A6 | Abnormal sound | A7 | Abnormal sound | A8 | the exchange noise is large | Inappropriate rotation | A9 | No action | A10 | Slow motion | A11 | Insufficient contractility | A12 | Exchange is not in place | jamming |
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