An improved inerter-pendulum tuned mass damper and its application in monopile offshore wind turbines
Document Type
Article
Publication Date
4-15-2024
Abstract
This paper proposes an improved inerter-pendulum tuned mass damper (I-PTMD) to combine the advantages of an inerter unit and the PTMD for bi-directional vibration control. To achieve this objective, two types of I-PTMD, namely SI (series inerter)-PTMD and PSI (series-parallel inerter)-PTMD are developed. The optimal design parameters of the SI-PTMD and PSI-PTMD are derived using the Imperial Competition Algorithm (ICA). Performance of the two types of I-PTMDs are examined via mitigating a single degree-of-freedom system. It is found that the PSI-PTMD outperforms the SI-PTMD in expanding the effective tuning frequency range and enhancing the mitigation effect. To further evaluate the performance of the PSI-PTMD, the National Renewable Energy Lab (NREL) monopile 5 MW baseline offshore wind turbine (OWT) is employed. A 16-DOF(degree-of-freedom) analytical model of the monopile OWT with a PSI-PTMD is established. The generalized aerodynamic, hydrodynamic and seismic loading are derived based on virtual work principle. Research results show that the PSI-PTMD outperforms the traditional PTMD in mitigating the bi-directional responses of the OWT under multi-hazard conditions.
Publication Source (Journal or Book title)
Ocean Engineering
Recommended Citation
Zhu, B., Wu, Y., Sun, C., & Sun, D. (2024). An improved inerter-pendulum tuned mass damper and its application in monopile offshore wind turbines. Ocean Engineering, 298 https://doi.org/10.1016/j.oceaneng.2024.117172