Table 5 Comparison of the results of the three models.

Actual RUL (h)

7.2

5.2

3.2

1.2

Proposed method’s MTTF (h)

5.751

4.392

2.876

1.074

Relative error (%)

20.125

15.538

10.125

10.500

DGN²² (h)

5.615

4.134

2.679

1.043

Relative error (%)

22.014

20.5

16.281

13.083

Ensemble model³⁴ (h)

5.589

4.211

2.684

1.058

Relative error (%)

22.375

19.019

16.125

11.833