... forces acting on offshore wind turbine foundations, with significant contributions from high-order harmonics. This study broadens the scope to include multi-directional and bi-directional wave interactions with monopile offshore wind turbine foundations. We use a phase-based harmonic separation method...

... Abstract As the demand for renewable energy grows, floating offshore wind turbines have become crucial, especially in deep water areas where traditional structures are impractical. These turbines need station keeping systems, which often consist in catenary mooring lines, making...

... lead to an significant increase in technician safety as well as maintenance efficiency. experimental modelling offshore wind turbine maintenance crew transfer vessel technician safety Proceedings of the ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering...

... Abstract A reliability-based approach for offshore wind turbine design is proposed to account for climate change of metocean conditions and uncertainty related to the estimates of future extreme weather and other metocean parameters. The impact of expected wave and wind climate change on OWT...

... Abstract Recently, the size of offshore wind generators and blades are increasing for more efficient energy production. Larger offshore wind turbine foundations are also required for higher vertical and lateral capacities against significant loads and bending moments. In addition, construction...

... Abstract Jacket support structure is the main support form for bottom fixed offshore wind turbine. Weight optimization is critical importance due to the substantial volume of material used in the components of jacket support structures. A metaheuristic algorithm is a powerful tool that allows...

... Abstract Monopile is used as supporting part of offshore wind turbines (OWTs) and determines its service time. After the construction, dynamic response of monopiles has been extensively studied under external loads, such as seawater corrosion, offshore wind and pile-soil interaction. However...

... Abstract Floating offshore wind turbines (FOWTs) are considered a promising solution for wind energy harvesting in deep water, and optimized designs will bring the costs of FOWTs down and increase profitability. However, verifying the fatigue lifetime for the FOWT optimization model requires...

... Abstract Hybrid wind-wave systems combine a floating offshore wind turbine (FOWT) with a set of wave energy converter (WEC) systems. Although the level of power production is significantly different, integrating a WEC system with the FOWT may be beneficial, such as reducing the FOWT platform...

... Abstract Offshore wind turbines are mostly arranged in wind farms in the form of arrays. The aerodynamic performance of downstream wind turbines decreases significantly due to the influence of upstream wind turbine wake. In addition to the streamwise distance, lateral and vertical distances can...

... in the study, highlighting their various advantages over one another. These configurations are examined for their hydrodynamic performance. offshore wind turbine very large floating structure hydrodynamic analysis Proceedings of the ASME 2024 43rd International Conference on Ocean, Offshore...

... Abstract The scale and speed of offshore wind installation are increasing fast, and the associated maintenance risks and challenges attracting more and more research attention. Blades and towers are the most vulnerable structures for offshore wind turbines and their structural defects account...

... Abstract As the Floating Offshore Wind Turbine industry approaches the transition from demonstrators to commercial scale farms, condition monitoring systems will be integral to risk management. Scalable condition monitoring solutions exist for both Fixed Offshore Wind and floating Oil and Gas...

... Abstract A semi-analytical dynamic analysis of the monopile tower of an offshore wind turbine is presented. The linearly tapered, hollow, steel tower (with circular cross-section) is modeled as a Euler-Bernoulli cantilever beam with a tip mass, which is partially submerged in water...

... offshore wind turbine maintenance Proceedings of the ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering OMAE2023 June 11-16, 2023, Melbourne, Australia OMAE2023-102185 DYNAMIC ANALYSIS OF LAUNCOHING AND RECOVERING ROV Yulin Deng1 Xiudi Ren2 Martin Nuernberg4 Longbin...

... Abstract Offshore wind turbines have several advantages over onshore turbines, such as greater efficiency and the ability to generate greater amounts of energy in a more constant manner. Despite this, the Levelized Cost of Energy of onshore wind turbines is still lower than for offshore wind...

... Abstract Offshore wind turbines are complex systems which are subjected to complicated loads and load effects. This will demand comprehensive numerical modelling of the structure for both loads and resistance. Design by direct analysis and first principles of hydrodynamic and aerodynamic loads...

... Abstract A fully coupled methodology for simulating floating offshore wind turbines is developed within the framework of CONVERGE CFD software. This methodology utilizes the following models which are solved together in a coupled manner: wind-wave models, turbine rotor/blade models, mooring...

... of a 15MW floating offshore wind turbine (FOWT) supported by a concrete semi-submersible platform (ActiveFloat) in Gran Canaria Island (Spain). Both scaled concepts in the 100 m deep site are developed within the framework of the project COREWIND. All the test campaign is planned to be fully monitored...

... Abstract The operation and maintenance (O&M) of an offshore wind turbine consumes large percentage of cost in the whole life of the offshore wind project. In most maintenance strategies, the service operation vessels (SOV) are widely employed in the maintenance activities. So far, the SOVs...