A Universal Fast Algorithm for Sensitivity-Based Structural Damage Detection

Table 3

Results of the calculated damage parameters in [13] (Example 2).

Damage case	Element no.	True damage reduction	No noise		With noise
			Iteration 1	Iteration 2	Iteration 1	Iteration 2	Iteration 3
1	16	0.3	0.400 (33.3%)	0.311 (3.7%)	0.482 (60.7%)	0.421 (40.3%)	0.378 (26%)
2	1	0.3	0.412 (37.3%)	0.317 (5.7%)	0.452 (50.7%)	0.342 (14%)	0.318 (6%)
	2	0.2	0.260 (30%)	0.207 (3.5%)	0.312 (56%)	0.248 (24%)	0.241 (20.5%)
3	7	0.15	0.18 (20%)	0.149 (0.7%)	0.182 (21.3%)	0.141 (6%)	0.140 (6.7%)
	11	0.2	0.236 (18%)	0.205 (2.5%)	0.172 (14%)	0.194 (3%)	0.196 (2%)
	12	0.15	0.134 (10.7%)	0.149 (0.7%)	0.144 (4%)	0.149 (0.7%)	0.147 (2%)

∗The value in bracket denotes the comparative error between the calculated value and the true value.