Research Article
Free-Interface Modal Synthesis Based Substructural Damage Detection Method
Table 1
Convergent index
with different retained modes.
| Group | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Retained modes | | | | | | | | | | | | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 |
| | 26859 | 24728 | 24514 | 23767 | 23447 | 23285 | 23182 | 23060 | 22952 | 22711 | E (×10−3) | 86.2 | 53.1 | 31.4 | 13.6 | 6.9 | 4.4 | 5.3 | 4.7 | 10.6 | 3.7 |
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