Combined Data with Particle Swarm Optimization for Structural Damage Detection

Table 4

Comparison of damage detection results of case one by ARSAGA and IEPSO.

Element no.	Stiffness damage factors
	Exact	ARSAGA	IEPSO
1	1.0	0.963 (−3.7%)	1.0
2	0.9	0.914	0.9
3	1.0	1.0	1.0
4	1.0	0.984	0.999
5	1.0	0.992	1.0
6	1.0	1.0	1.0
7	1.0	1.0	1.0
8	1.0	0.978	0.999
9	0.9	0.905	0.901
10	1.0	1.0	1.0
11	1.0	1.0	1.0
12	1.0	0.987	1.0
13	1.0	1.0	1.0
14	1.0	0.991	1.0
15	1.0	1.0	1.0
16	0.85	0.852	0.851 (0.12%)
17	1.0	1.0	1.0
18	1.0	1.0	0.999
19	1.0	1.0	1.0
20	1.0	1.0	1.0