Fatigue damage assessment of fixed offshore wind turbine tripod support structures

Yeter, Baran; Garbatov, Y.; Soares, C. Guedes

doi:10.1016/j.engstruct.2015.07.038

Cited by 87 publications

(33 citation statements)

References 28 publications

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“…After years of study, experimental studies, and prototypes [26,27], there are two main sorts of offshore wind structures considering the kind of platform that supports the offshore wind turbine. In this sense, platforms can be fixed (monopiles [28], tripod [29], jackets [30], gravity-based foundations [31]) or floating [32,33] (semisubmersible [34], tensioned leg platforms (TLP) [35,36], spar [37,38]). Regarding the floating concepts, the loads in the semisubmersible platform are the highest for the three floating structures [39].…”

Section: Introductionmentioning

confidence: 99%

Economic Feasibility of Floating Offshore Wind Farms in the North of Spain

Castro-Santos

Bento

Silva

et al. 2020

JMSE

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This paper assesses the economic feasibility of offshore wind farms installed in deep waters considering their internal rate of return (IRR), net present value (NPV), and levelized cost of energy (LCOE). The method proposed has three phases: geographic phase, economic phase, and restrictions phase. The purpose of the geographic step is to obtain the input values, which will be used in the economic phase. Then, the economic parameters are calculated considering the inputs provided previously. Finally, the bathymetric restriction is added to the economic maps. The case study focused on the Cantabric and North-Atlantic coasts of Spain, areas that have not been studied previously in economic terms regarding floating offshore wind technology. Moreover, several alternatives have been considered, taking into account the type of floating offshore wind structure and the electric tariff. Results indicate which is the best floating offshore wind structure with respect to LCOE, IRR, and NPV, and where is the best location for the connection of a floating offshore wind farm in the region selected.

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Section: Introductionmentioning

confidence: 99%

Economic Feasibility of Floating Offshore Wind Farms in the North of Spain

Castro-Santos

Bento

Silva

et al. 2020

JMSE

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“…e fatigue damage of structural components under environmental loading is a cumulative process. Fatigue life prediction and reliability evaluation is still a challenging problem despite significant progress made in the past decades [20][21][22][23][24][25]. Sun and Jahangiri [26] studied the fatigue damage mitigation of offshore wind turbines under real wind and wave loads.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Damage Evaluation of Pile‐Supported Bridges under Stochastic Ice Loads

Qiu

2020

Advances in Civil Engineering

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e Bohai Sea is the sea area with the worst ice condition in China, and the ice loads significantly threaten the safety of structures in the sea. e intense vibrations of the pile-supported bridge under stochastic ice loads will increase the fatigue damage of a bridge structure and reduce the fatigue life of a bridge structure. In the present study, a comprehensive analysis model is presented to study fatigue damage for pile-supported bridges under ice loads in Bohai Sea. On the basis of measured statistical data of ice parameters and stochastic ice loads spectrum of Bohai Sea, the time histories of the stochastic ice loads of Bohai Sea are simulated. Fatigue damage analysis is carried out in time domain utilizing the finite element method considering soil and bridge structure interaction. e effect of soil conditions and water depth on the cumulative fatigue damage of the pile-supported bridges is studied. Numerical results indicate that in comparison with stiff soil conditions, pile-supported bridges in soft oil conditions can increase the cumulative fatigue damage substantially; pile-supported bridges in deep water also can increase the cumulative fatigue damage obviously. e study presented the first danger position of cumulative damage of the pile cross section under stochastic ice loads. e findings of this study can be used to fatigue damage evaluation and bridge construction in the ice-covered sea area.

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“…The offshore wind industry is also focused on the development of OWS with higher service life by preventing early fatigue cracks [38,39,52,54,63]. This will be accomplished by testing new alloys and improving the design of the existent OWS as new research becomes available [54].…”

Section: Future Perspectivesmentioning

confidence: 99%

Corrosion Protection Systems and Fatigue Corrosion in Offshore Wind Structures: Current Status and Future Perspectives

Price

Figueira

2017

Coatings

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Concerns over reducing CO 2 emissions associated with the burning of fossil fuels in combination with an increase in worldwide energy demands is leading to increased development of renewable energies such as wind. The installation of offshore wind power structures (OWS) is one of the most promising approaches for the production of renewable energy. However, corrosion and fatigue damage in marine and offshore environments are major causes of primary steel strength degradation in OWS. Corrosion can reduce the thickness of structural components which may lead towards fatigue crack initiation and buckling. These failure mechanisms affect tower service life and may result in catastrophic structural failure. Additionally, environmental pollution stemming from corrosion's by-products is possible. As a result, large financial investments are made yearly for both the prevention and recovery of these drawbacks. The corrosion rate of an OWS is dependent on different characteristics of attack which are influenced by access to oxygen and humidity. Structural degradation can occur due to chemical attack, abrasive action of waves, and microorganism attacks. Inspired by technological and scientific advances in recent years, the purpose of this paper is to discuss the current protective coating system technologies used to protect OWS as well as future perspectives.

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Fatigue damage assessment of fixed offshore wind turbine tripod support structures

Cited by 87 publications

References 28 publications

Economic Feasibility of Floating Offshore Wind Farms in the North of Spain

Economic Feasibility of Floating Offshore Wind Farms in the North of Spain

Fatigue Damage Evaluation of Pile‐Supported Bridges under Stochastic Ice Loads

Corrosion Protection Systems and Fatigue Corrosion in Offshore Wind Structures: Current Status and Future Perspectives

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