Damage Identification of Bridge Based on Modal Flexibility and Neural Network Improved by Particle Swarm Optimization

Table 2

Training samples for damage severity identification of element 10.

Node number	Damage severity (%)
	5	10	15	20
2	0.01	0.01	0.01	0.01
3	0.14	0.14	0.14	0.14
4	0.27	0.27	0.27	0.27
5	0.40	0.40	0.40	0.40
6	0.52	0.52	0.52	0.52
7	0.64	0.64	0.64	0.64
8	0.77	0.76	0.76	0.76
9	0.88	0.88	0.88	0.88
10	0.99	0.99	0.99	0.99
11	1.00	1.00	1.00	1.00
12	0.90	0.90	0.90	0.90
13	0.80	0.80	0.80	0.80
14	0.69	0.69	0.69	0.69
15	0.58	0.58	0.58	0.58
16	0.47	0.47	0.47	0.47
17	0.35	0.35	0.35	0.35
18	0.24	0.24	0.24	0.24
19	0.12	0.12	0.12	0.12
20	0.00	0.00	0.00	0.00