Research Article
Damage Identification of Full-Scale Steel Truss Structure Based on Model Condensation and Mean-Value Normalization Regularization Techniques
Table 2
The comparison between experimental and analytical modal parameters.
| | Mode | Experimental frequency (Hz) | Before updating | After updating | | Analytical frequency (Hz) | Error (%) | MAC | Analytical frequency (Hz) | Error (%) | MAC |
| | 1 | 7.9688 | 7.7132 | 5.72 | 0.9312 | 7.967 | 0.02 | 0.9912 | | 2 | 26.7188 | 25.4561 | 8.47 | 0.9252 | 26.702 | 0.06 | 0.9831 | | 3 | 37.2656 | 35.4521 | 5.67 | 0.9032 | 37.246 | 0.05 | 0.9742 | | 4 | 41.7188 | 40.7541 | 3.75 | 0.8903 | 41.708 | 0.03 | 0.9683 |
|
|
