Bearing Damage Detection of a Bridge under the Uncertain Conditions Based on the Bayesian Framework and Matrix Perturbation Method

Table 3

Analytical and measured natural frequencies and MAC.

Mode	Measured (Hz)	Analytical (Hz)	Error (%)	MAC
1	2.4828	2.4821	0.03	0.9949
2	2.9593	3.0016	1.41	0.9841
3	3.4991	3.4176	2.38	0.9905
4	4.0791	4.0365	1.06	0.9708
5	4.1668	4.0369	3.22	0.9718
6	4.6310	4.6561	0.54	0.9709