Dynamic Model of Ship Wind Turbine with Transmission

We consider a mathematical model of a catamaran with a wind turbine consisting of a hull equipped with an air propeller and a water propeller. The wind-receiving propeller converts wind energy into rotational energy and transfers it via the transmission system to the propeller, which creates a pulling force. The superiority of this force over the sum of the sailing resistance of the propeller and the hydrodynamic resistance of the catamaran hull provides the possibility of upwind acceleration. The shaft system connecting the air and water propeller suggests the possibility of changing the rotation transmission ratio. Steady modes of motion have been studied, their stability has been analyzed, and parameters have been found that provide the highest hull speed when moving upwind.