Stability analysis of vortex-induced vibrations on wind turbines

Abstract A parked wind turbine can be subjected to large yaw angles, which causes vortex shedding. Under some particular inflow conditions, the interaction between shed vorticity and blade structure could lead Vortex-Induced Vibrations (VIV). VIV are an instability where response grows until it reaches a limit cycle oscillation. In this paper, we will focus on last part of response. We see that shedding makes aeroelastic system linear time-periodic, study its stability with Floquet theory. use high-fidelity simulations different quantify using model-free approach.