Pounding tuned mass damper for vibration control of offshore wind turbine subjected to combined wind and wave excitations
Document Type
Article
Publication Date
2-15-2021
Abstract
A pounding tuned mass damper (PTMD) is proposed for controlling the structural vibration of a monopile offshore wind turbines subjected to combined wind and wave loading. An analytical model of the wind turbine coupled PTMD is established by the Euler-Lagrange equation and the related control effects are analyzed. Specifically, the National Renewable Energy Laboratory monopile 5-MW baseline wind turbine model is employed to examine the performance of the PTMD. The nonlinear viscoelastic model is used to describe the pounding process of the damping device. Aerodynamic loading acting on the blade is calculated by the blade element momentum method, where the Prandtl's tip loss factor and the Glauert correction are considered. Wave loading is computed using Morison's equation where wave date is generated by the JONSWAP spectrum. It is found that the PTMD can mitigate the nacelle/tower response effectively. Results indicate that the introduced collision mechanism improves the robustness of the tuned mass damper with enhanced vibration control effect under the detuned situations.
Publication Source (Journal or Book title)
Zhendong yu Chongji/Journal of Vibration and Shock
First Page
19
Last Page
27
Recommended Citation
Kong, F., Xia, H., Sun, C., & Li, S. (2021). Pounding tuned mass damper for vibration control of offshore wind turbine subjected to combined wind and wave excitations. Zhendong yu Chongji/Journal of Vibration and Shock, 40 (3), 19-27. https://doi.org/10.13465/j.cnki.jvs.2021.03.003