Wind turbine blades vibration: review

The rapid development of wind turbines and the elongation of their blades necessitate extensive studies to address higher loads, displacement and vibrational amplitude, nonlinearity in the geometry, nonlinear stiffness, and many other challenges. Moreover, as many countries are shifting towards wind energy due to its effectiveness and low environmental impact, there is a pressing need for comprehensive investigation. This review aims to explore diverse numerical and experimental methodologies used in analysing wind turbine blade models across various operating conditions, including turbulent flow or cold environments, as well as different geometries and sizes. Numerous proposed numerical methods demonstrate strong correlation with experimental results or similar results to alternative numerical techniques such as Finite Element Method (FEM), time or frequency domain methods, and direct simulation. Additionally, this paper encompasses various experimental findings, including modal model analysis, operational modal analysis, and structural health monitoring.