Updating Finite Element Model of a Wind Turbine Blade Section Using Experimental Modal Analysis Results

Table 2

Initial consistency of the modal model parameters.

Initial WT blade
TEST	FE
Freq. 1	Freq. 2	MAC value	Freq. 2−Freq. 1 (Hz)	Freq. 2−Freq. 1 (% of Freq. 1)
4.5	4.2	0.636	−0.24	−5.4
8.4	10.5	0.94	2.1	24.9
19.2	17.2	0.963	−2.03	−10.5
33.3	36.3	0.503	3.02	9.1
40.9	42.2	0.76	1.33	3.3
43.8	39.6	0.479	−4.2	−9.6
57.3	49.8	0.857	−7.5	−13.1