Vibration analysis of a rotor prototype wind turbine
For one of the Polish companies a pre-stress modal analysis for a prototypical wind turbine rotor has been conducted. The purpose of the analysis was to measure the resonant frequencies and moving them away from the range of the rotational operating speeds, if possible.
On the basis of the obtained results Campbell diagram have been drawn up.
The scope of the analysis further comprised the determination of stress and displacement distribution for the steady state of the rotor loaded with rotational speed and the forces arising from a working medium.