Identification Uncertainties of Bending Modes of an Onshore Wind Turbine for Vibration-Based Monitoring

Table 1

Natural frequencies , the damping ratio of the simulation model, and the identification results of BAYOMA or the SSI-COV.

Method	in Hz		in %
	(CoV)	(CoV)	(CoV)	(CoV)
DeSiO	0.2973	0.3021
BAYOMA	0.2975 (0.10%)	0.3021 (0.20%)	0.13 (139.3%)	0.35 (61.8%)
SSI-COV	0.2974	0.3017	0.20	0.11

The CoV in % is shown in brackets for the BAYOMA identification results (since DeSiO includes only velocity damping but not modal damping, no equivalent damping ratio can be determined, for details, see [34]).