Fluid-structure interaction and stress analysis of a floating wind turbine

Journal
Marine structures  
Volume
78
Article Number
102970
Citation
Marine Structures 78: 102970 (2021-07)
Publisher DOI
10.1016/j.marstruc.2021.102970
Scopus ID
2-s2.0-85103326988
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.
Subjects
Fluid-structure interaction
Partitioned solution approach
Self-aligning floating wind turbine
Stress analysis
Superelement
DDC Class
000: Allgemeines, Wissenschaft