Research Article
Fault Forecasting of a Machining Center Tool Magazine Based on Health Assessment
Table 4
Comparison between the original and the predicted values of the ARMA (2, 4) model using different parameter estimation algorithms.
| | Number | Actual value | Interior point | SQP | Active set | Number | Actual value | Interior point | SQP | Active set |
| | 91 | 589.1 | 610.0 | 608.3 | 610.0 | 96 | 574.0 | 605.9 | 604.0 | 605.9 | | 92 | 611.6 | 607.9 | 605.0 | 607.9 | 97 | 618.7 | 604.6 | 603.9 | 604.6 | | 93 | 605.9 | 604.8 | 604.4 | 604.8 | 98 | 595.4 | 605.3 | 603.9 | 605.3 | | 94 | 592.6 | 606.6 | 604.7 | 606.6 | 99 | 584.8 | 604.3 | 603.6 | 604.3 | | 95 | 621.5 | 604.8 | 604.6 | 604.8 | 100 | 597.5 | 604.8 | 603.3 | 604.8 |
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