This document discusses a new type of vortex wind turbine that aims to more efficiently capture wind energy through vortex-induced vibrations. The turbine consists of a hollow, flexible cylinder mounted vertically on an elastic rod. As wind passes the cylinder, vortices are shed from the downwind side, causing the cylinder to oscillate. This oscillating motion is then converted to electricity through an attached generator. The document analyzes parameters that influence the energy extraction efficiency of this vortex-induced vibration method, such as mass ratio and mechanical damping. It finds there is an optimal mass-damping value that maximizes efficiency. This new turbine design aims to generate electricity at a lower cost than conventional wind turbines and address issues with their large size,