Types Of Modal Analysis On wind Turbine Blade

With the importance of alternative energy sources increasing, monitoring and economical design of alternative energy generators becomes more critical. Wind power has tremendous potential to provide renewable energy without reliance on traditional fossil fuel technologies.Modal analysis has been used to identify natural frequencies, damping characteristics and mode shapes of wind turbine blades. Different experimental procedures have been considered and the most appropriate of these has been selected.The reliability of the selected experimental analysis has been quantified by estimating the unsystematic variations in the experimental findings.For nondominatingdeflection directions of the investigated mode shapes, however, the observed experimental uncertainty may be considerable – especially for the torsional deflection.

Keywords:

Analysis , Thermal Stress Analysis , modal analysis , windturbine