Free-Interface Modal Synthesis Based Substructural Damage Detection Method

Table 4

Frequencies and mode shapes using the proposed substructure method.

Mode	Frequency			MAC (%)
	Experimental data (Hz)	Analytical data (Hz)	Difference (%)
1	1.032	1.033	0.1	100
2	3.353	3.353	0	100
3	4.29	4.291	0.02	100
4	6.32	6.321	0.02	100
5	6.967	6.969	0.03	100
6	10.129	10.137	0.08	99.9
7	11.46	11.462	0.02	100
8	14.155	14.162	0.05	99.8
9	14.283	14.292	0.06	99.8
10	16.65	16.653	0.02	99.7