Fluid-structure interaction and stress analysis of a floating wind turbine |
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| Institution: | 1. Department of Mechanical Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA;2. Department of Mechanical Engineering, San Diego State University, San Diego, CA 92182, USA;1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China;2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai, 200240, China;3. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China;4. Ocean Engineering Department, Texas A&M University, College Station, TX, 77843, USA;1. Department of Flow, Heat and Combustion Mechanics, Ghent University, Sint-Pietersnieuwstraat 41, 9000, Ghent, Belgium;2. Department of Materials, Textiles and Chemical Engineering, Ghent University, Technologiepark-Zwijnaarde 907, 9052, Zwijnaarde, Belgium;3. Flanders Make, Belgium;1. School of Mechanical and Electrical Engineering, Jinling Institute of Technology, Nanjing 211169, China;2. College of Ship Building and Ocean Engineering, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | In this paper, we describe a method to investigate the fluid-structure interaction of a floating wind turbine and to analyze the global deformations and the corresponding stresses with a detailed finite element model. To solve the fluid-structure interaction problem, a partitioned approach is chosen. The in-house C++ library comana, which was developed to solve multi-physic problems by coupling existing solvers, is extended to couple the fluid solver panMARE and the structural solver ANSYS. The significance of the interaction of structural deformations and the fluid loads is pointed out for the rotor of the wind turbine. In order to enable the use of a detailed finite element model in the fluid-structure interaction simulation, a model reduction method is applied in ANSYS. As a result, an efficient stress analysis can be performed under consideration of the fluid-structure interaction. |
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| Keywords: | Fluid-structure interaction Stress analysis Self-aligning floating wind turbine Partitioned solution approach Superelement |
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