... ABSTRACT In this study, a series of sea-wave loading tests were conducted on model monopiles settled on a rubble mound with a scour countermeasure around the monopile foundations. The results revealed that local scouring around the structure could be suppressed by installing rubble mound...

... by using computational fluid dynamics (CFD) method. The flow and diffusion characteristic, and the residual rate of solidified slurry around the monopile foundation and pile group foundation are systematically investigated. It is found that the location downstream of the foundation is optimal for pumping...

... reservoir simulation wind energy platform design turbine sustainable development monopile foundation social responsibility subsea system catamaran sustainability wind turbine offshore projects planning and execution offshore wind turbine gripper turbine assembly installation...

... sustainable development sustainability wind energy artificial intelligence machine learning monopile bp neural network model owt wind load static bearing performance wind speed social responsibility neural network model bearing performance wave height monopile foundation rotation...

... shear strain wind turbine reservoir characterization simulation reference system upstream oil & gas monopile calculation numerical simulation relative density loading hysteresis monopile foundation initial stiffness proceedings secant stiffness stiffness foundation stiffness...

... ABSTRACT In this paper, we compare the load displacement behavior of an offshore monopile foundation obtained with different beam-spring approaches (p-y-curves) with numerical results obtained with the Finite Element method. Good agreement between the Finite Element calculation and the beam...

... ABSTRACT Due to the lateral stiffness shortage of the monopile, and in order to improve the applicability of the monopile, a new wind turbine foundation type which is combining the jacket and monopile foundations is proposed. Based on the engineering example of offshore wind farm in Fujian...

... under vertical cyclic loading and two different approaches (sub-layering model and stiffness degradation model) for monopile foundations subjected to a horizontal cyclic loading are presented. The results of these models are compared to the solution from complete 2D or 3D finite element simulations...

... monopile foundation natural frequency design criteria sensitivity analysis Weight Optimisation of Steel Monopile Foundations for Offshore Windfarms Nils Fog Gjersøe LICengineering A/S Esbjerg, Denmark Erik Bouvin Pedersen LICengineering A/S Esbjerg, Denmark Brian Kristiansen LICengineering A/S...

... Abstract Monopiles are the most widely utilized foundation for offshore wind turbines (OWTs) in shallow waters. However, jacket-type foundations are being considered as one of the good alternatives to monopile foundations for relatively deep water in the range of 25–50 m of water depth. Jacket...

... transfer function offshore wind turbine subsea system ring-flange connection ec 3 monopile foundation renewable energy high-strength bolt Fatigue Assessment of High-Strength Bolts with Very Large Diameters in Substructures for Offshore Wind Turbines Peter Schaumann, Rasmus Eichstädt ForWind...

... was presented and examined to aid in better understanding the multi-hazard behavior (i.e., wind and waves) of a representative offshore wind turbine with monopile foundations. Preliminary results from the computational simulation will be discussed. offshore wind turbine severe environmental condition...

... and the Baltic Sea in Europe a vast number of offshore wind farms are being planned and several have already been installed in recent years. In the beginning, in most cases wind farms were erected in moderate water depths (less than 20m) and monopile foundations have been built as support structures for the wind...

... of energy is observed for offshore wind turbine struc- tures. Significant research and development are needed in order to avoid an increase in the cost per MW power when the turbines are installed at greater water depths. For offshore wind turbines, monopile foundations with diameters of 4-6 m are often...

... is assessed through three-dimensional numerical modeling of a monopile foundation located at the offshore wind farm at Horns Reef, Denmark. KEY WORDS: Scour; Backfill; Piles; Offshore wind turbines; Experimental testing; Numerical modeling. INTRODUCTION When designing offshore wind turbine foundations...

... Local Scour and Pore-water Pressure around a Monopile Foundation under Combined Waves and Currents Wengang Qi, Fuping Gao, Xiting Han and Qixian Gong Institute of Mechanics, Chinese Academy of Sciences, Beijing, China ABSTRACT A series of experiments were conducted in a large flow-structure-soil...

... cyclic loading loading condition wind energy scour criterion renewable energy monopile foundation loading deformation offshore wind turbine subsea system pile length const deformation response lateral deformation monopile lateral load wind energy converter foundation platform...

... of offshore foundations, monopile foundation is selected and designed for 2.3 MW offshore wind turbine (OWT) in Weihai, China, considering water depth, soil conditions, foundation cost and other factors. In a three dimensional (3D) finite element model of monopile, the layered seabed soil where the pile...

... of suitable foundation designs as well as dedicated installation methods in order to overcome the access restrictions. This paper describes the development of offshore monopile foundations for the first three major British offshore sites for large wind turbines in the 2 MW class: Blyth (2 foundations), North...