Prediction of Stochastic Blade Responses Using a Filtered Noise Turbulence Model in the FLAP Code

The wind turbine structural dynamics model, FLAP (Force and Loads Analysis Program), has been modified to include turbulent wind fluctuations based on a filtered-noise model. The importance of including the effects of turbulent wind fluctuations in the structural-loads predictive model has long been recognized. These stochastic loads are the dominant fatigue loads for many structural componentsin horizontal-axis wind turbines.