Effect of long-term lateral cyclic loading on the dynamic response and fatigue life of monopile-supported offshore wind turbines

Ma, Hongwang; Deng, Yawen; Chang, Xuening

doi:10.1016/j.marstruc.2023.103521

Cited by 5 publications

(3 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They validated their method using experimental data from one of the three full-scale FWTs located at Wind Float Atlantic with a total 25 MW farm capacity [29]. Ma et al 2024 investigated the effect of changes in damping, stiffness, and permanent accumulated rotation of monopile foundations due to cyclic loadings. They found that those changes resulted in a 10% and 16% decrease for the medium and ultimate states, respectively [30].…”

Section: Introductionmentioning

confidence: 99%

“…Ma et al 2024 investigated the effect of changes in damping, stiffness, and permanent accumulated rotation of monopile foundations due to cyclic loadings. They found that those changes resulted in a 10% and 16% decrease for the medium and ultimate states, respectively [30]. Mehmanparast et al 2024 re-evaluated fatigue design curves for OWT monopile foundations by analyzing thick as-welded test data.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fatigue Analysis of a Jacket-Supported Offshore Wind Turbine at Block Island Wind Farm

Partovi-Mehr,

DeFrancisci,

Minaeijavid

et al. 2024

Sensors

View full text Add to dashboard Cite

Offshore wind-turbine (OWT) support structures are subjected to cyclic dynamic loads with variations in loadings from wind and waves as well as the rotation of blades throughout their lifetime. The magnitude and extent of the cyclic loading can create a fatigue limit state controlling the design of support structures. In this paper, the remaining fatigue life of the support structure for a GE Haliade 6 MW fixed-bottom jacket offshore wind turbine within the Block Island Wind Farm (BIWF) is assessed. The fatigue damage to the tower and the jacket support structure using stress time histories at instrumented and non-instrumented locations are processed. Two validated finite-element models are utilized for assessing the stress cycles. The modal expansion method and a simplified approach using static calculations of the responses are employed to estimate the stress at the non-instrumented locations—known as virtual sensors. It is found that the hotspots at the base of the tower have longer service lives than the jacket. The fatigue damage to the jacket leg joints is less than 20% and 40% of its fatigue capacity during the 25-year design lifetime of the BIWF OWT, using the modal expansion method and the simplified static approach, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fatigue Analysis of a Jacket-Supported Offshore Wind Turbine at Block Island Wind Farm

Partovi-Mehr,

DeFrancisci,

Minaeijavid

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

“…Fatigue fracture of the piping is one of the main reasons leading to system failure, and the fatigue damage of the piping during use is closely related to the system's reliability. Testing, analyzing, and evaluating its dynamic performance to promptly identify issues and conduct fatigue life and reliability analysis are key tasks in the development of high-performance refrigeration equipment [2].…”

Section: Introductionmentioning

confidence: 99%