Finite Element Analysis of Tidal Turbine Blade Subjected to Impact Loads from Sea Animals

The present work investigates structural response of tidal stream turbine blades subjected to impact loads from sea animals. A full-scale blade model was developed using a finite element modelling software ABAQUS, while simplified geometry an adult killer whale (Orcinus orca) assumed in simulating on the blade. foil profiles along were based NACA 63-8XX series, geometric and material properties animal calibrated with experimental results. numerical simulated dynamic blade, accounting for radial velocities corresponding real life scenarios. Different magnitudes trajectories velocity vector simulated, order investigate their influence blade’s plastic deformation. Furthermore, multiple impacts analysed, monitor accumulation strain Finally, potential application stainless steel resistance evaluated, through comparison results obtained models mild carbon materials.