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A new approach to multibody dynamics is investigated by treating floating wind turbines as multibody systems. The system is considered as three rigid bodies: the tower, nacelle and rotor. Three large-amplitude rotational degrees of freedom (DOFs) of the tower are described by 1-2-3 sequence Euler angles. Translation of the entire system is described by Newton’s second Law applied to the center of...
A new method is presented to directly derive the nonlinear equations of motion (EOMs) of a floating wind turbine system using the theorem of conservation of angular momentum and Newton's second law. The methodology considers the system as two rigid bodies: the tower and the rotor-nacelle assembly (RNA). The large-amplitude rotation of the tower is described by the 1-2-3 sequence Euler angles, which...
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