Shock and Vibration / 2019 / Article / Tab 1

Research Article

A Method of Modal Parameter Identification for Wind Turbine Blade Based on Binocular Dynamic Photogrammetry

Table 1

The recognition results of blade’s modal frequencies.

ModeMeasurement method
Frequency (Hz)
Proposed methodImpact testRelative error (%)

First order4.424.283.2
Second order11.411.76−3.1
Third order28.2329.01−2.7

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