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http://dx.doi.org/10.3795/KSME-A.2012.36.12.1489

Structural Analysis of Floating Offshore Wind Turbine Tower Based on Flexible Multibody Dynamics  

Park, Kwang-Phil (Central R&D Institute, Daewoo Shipbuilding & Marine Engineering, Co., Ltd.)
Cha, Ju-Hwan (Dept. of Ocean Engineering, Mokpo Nat'l Univ.)
Ku, Namkug (Dept. of Naval Architecture and Ocean Engineering, Seoul Nat'l Univ.)
Jo, A-Ra (Central R&D Institute, Daewoo Shipbuilding & Marine Engineering, Co., Ltd.)
Lee, Kyu-Yeul (Dept. of Naval Architecture and Ocean Engineering, Seoul Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.12, 2012 , pp. 1489-1495 More about this Journal
Abstract
In this study, we perform the structural analysis of a floating offshore wind turbine tower by considering the dynamic response of the floating platform. A multibody system consisting of three blades, a hub, a nacelle, the platform, and the tower is used to model the floating wind turbine. The blades and the tower are modeled as flexible bodies using three-dimensional beam elements. The aerodynamic force on the blades is calculated by the Blade Element Momentum (BEM) theory with hub rotation. The hydrostatic, hydrodynamic, and mooring forces are considered for the platform. The structural dynamic responses of the tower are simulated by numerically solving the equations of motion. From the simulation results, the time history of the internal forces at the nodes, such as the bending moment and stress, are obtained. In conclusion, the internal forces are compared with those obtained from static analysis to assess the effects of wave loads on the structural stability of the tower.
Keywords
Structural Analysis; Floating Offshore Wind Turbine; Flexible Multibody System Dynamics;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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