Research Article
Structural Damage Identification Based on l1Regularization and Bare Bones Particle Swarm Optimization with Double Jump Strategy
Table 2
Experimental and analytical natural frequencies for the undamaged frame structure.
| | | Before updating | After updating | | Mode | Experimental (Hz) | Analytical (Hz) | Error (%) | Analytical (Hz) | Error (%) |
| | 1 | 3.369 | 3.449391 | 0.285 | 3.36902 | 0.0005 | | 2 | 9.704 | 9.681222 | 0.235 | 9.70401 | 0.0001 | | 3 | 14.282 | 14.018233 | 1.847 | 14.2819 | 0.0007 |
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