Investigation on high-order coupled rigid-flexible multi-body dynamic code for offshore floating wind turbines

Hu, Z; Liu, G; Chen, J

doi:10.1115/OMAE2017-61074

Investigation on high-order coupled rigid-flexible multi-body dynamic code for offshore floating wind turbines

Lookup NU author(s): Professor Zhiqiang Hu

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.

Abstract

© 2017 ASME. This paper presents a preliminary development and validation of a high-order coupled time-domain simulation code DARwind for floating offshore wind turbine systems. In the code, unsteady Blade-Element-Momentum method with some corrections has been utilized to calculate aerodynamic loads. Combination of potential-flow theory and Morison's equation are applied to calculate hydrodynamic loads. A quasi-static catenary mooring model is used to consider restoring forces from mooring lines. Kane's dynamic equations and a high-order coupled model with mode superposition are proposed to model kinematics and structural dynamics of floating offshore wind turbine systems. Subsequently, the effectiveness of the code and its unique high-order coupled dynamic characteristics have been verified by code-to-code tests.