Seismic vulnerability of jacket supported large offshore wind turbine considering multidirectional ground motions

James, Maria; Haldar, Sumanta

doi:10.1016/j.istruc.2022.06.049

Cited by 25 publications

(2 citation statements)

References 41 publications

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“…Ren et al 10 analyze the structural response of the jacket under the combined action of wind and wave. James and Haldar 11 study the structural dynamic response and corresponding structural damage state of the jacket under various seismic conditions. In addition, Natarajan and Madabhushi 12 and Mendoza et al 13 conduct extreme environmental load on the jackets to improve the structure reliability.…”

Section: Structure Health Monitoring Of Offshore Jacket Structuresmentioning

confidence: 99%

Condition-based structural health monitoring of offshore wind jacket structures: Opportunities, challenges, and perspectives

Leng

Gardoni

Wang

et al. 2023

Structural Health Monitoring

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Structural health monitoring (SHM) has been recognized as a useful tool for safety management and risk reduction of offshore wind farms. In complex offshore environment, jacket structures of offshore wind turbines are prone to damages due to corrosion and fatigue. Effective SHM on jacket structures can substantially reduce their operation risk and costs. This work reviews the latest progress on the SHM of offshore wind jacket structures. The achievements in the structural damage identification, location, quantification, and remaining useful life (RUL) estimation are respectively introduced in detail, and existing challenges are discussed. Possible solutions to the challenges using the Digital Twin (DT) technology are put forward. The DT is able to mirror a real jacket structure into a virtual model, and Bayesian updating can refresh the virtual model parameters in real-time to keep consistency between virtual model and physical structure; then, just-in-time SHM can be carried out for jacket structures by performing damage detection, location, quantification, and RUL estimation using the virtual model. As a result, the DT may provide engineers and researchers a practicable tool for safety monitoring and risk reduction of fixed foundation offshore wind structures.

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Section: Structure Health Monitoring Of Offshore Jacket Structuresmentioning

confidence: 99%

Condition-based structural health monitoring of offshore wind jacket structures: Opportunities, challenges, and perspectives

Leng

Gardoni

Wang

et al. 2023

Structural Health Monitoring

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“…Based on previous research, vertical shaking amplifies the acceleration and settlement of the nacelle in the OWT system, thereby influencing the failure mechanisms of the OWT under seismic events. For instance, research has been conducted on the effects of vertical seismic motion on liquefaction in the soil surrounding the foundation and the deformation characteristics of the tower for various foundation types [1][2][3][4]. However, the research on tripod suction bucket foundations remains IOP Publishing doi:10.1088/1755-1315/1332/1/012015 2 limited.…”

Section: Introductionmentioning

confidence: 99%

Seismic response of tripod suction bucket foundation for offshore wind turbine considering multidirectional earthquake loads

Wang,

Liang,

Zhang

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Tripod suction buckets offer several advantages as offshore wind turbine (OWT) foundations, including cost-effective installation, high stability, and resistance to overturning. In seismically active regions, OWTs experience horizontal and vertical directions seismic excitations. This study employed an advanced three-dimensional nonlinear finite element analysis to investigate the influence of vertical seismic motions on the dynamic behavior of tripod bucket foundations installed in nonhomogeneous clay deposits. By adopting a simple kinematic hardening model to capture the foundation-soil nonlinear dynamic interaction, parametric analyses were conducted to study the effect of vertical seismic motions, considering several earthquake types and undrained shear strengths of the clay deposit. The results show that the influence of the vertical seismic motion on the dynamic response and deformation of the nacelle depends on the dominant frequency of the vertical seismic motion and the overturning resistance capacity of the OWT in different horizontal directions. The deformation mechanisms of an OWT vary with the strengths of the clay deposits. Based on these analyses, this study offers insights into the influence of vertical seismic motions on the dynamic response of tripod suction bucket foundations.

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Seismic Response of Spar Floating Offshore Wind Turbine

James,

Haldar,

Bhattacharya

2024

Lecture Notes in Civil Engineering

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Seismic vulnerability of jacket supported large offshore wind turbine considering multidirectional ground motions

Cited by 25 publications

References 41 publications

Condition-based structural health monitoring of offshore wind jacket structures: Opportunities, challenges, and perspectives

Condition-based structural health monitoring of offshore wind jacket structures: Opportunities, challenges, and perspectives

Seismic response of tripod suction bucket foundation for offshore wind turbine considering multidirectional earthquake loads

Seismic Response of Spar Floating Offshore Wind Turbine

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