Shock and Vibration / 2014 / Article / Tab 5

Research Article

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

Table 5

Final consistency of the modal model parameters.

Final WT blade (versus initial)
TESTFE
Freq. 1Freq. 2MAC valueFreq. 2−Freq. 1 (Hz)Freq. 2−Freq. 1 (% of Freq. 1)

4.40.634 ( )−0.1 ( )−2.2 ( )
10.20.942 ( )1.73 ( )20.6 ( )
17.80.962 ( )−1.41 ( )−7.3 ( )
260.722 ( )−7.3 ( )−21.9 ( )
38.80.602 ( )−2.11 ( )−5.2 ( )
42.10.538 ( )−1.72 ( )−3.9 ( )
50.30.802 ( )−7.03 ( )−12.3 ( )