Beam Structure Damage Identification Based on BP Neural Network and Support Vector Machine

Table 3

The damage identification results of single quarter crack with 3% noise level.

Working condition number	Damage element number	Ideal result of SVM	Actual result of SVM
No. 1	10	3.125%	3.160%
No. 2	10	6.250%	6.310%
No. 3	10	12.500%	12.540%
No. 4	10	15.625%	15.680%