Severe foundation scour may occur around monopile foundations of offshore wind turbines due to currents and waves. The so-called p-y curves method is suggested in the existing design recommendations to determine the behavior of monopiles unprotected against scour and the reduction of effective soil stress is accounted for by the extreme scour depth. This conservative design approach does not co...

Offshore wind power production is an attractive clean energy option, but the difficulty of access can lead to expensive and rare opportunities for maintenance. As part of the Structural Health and Prognostics Management (SHPM) project at Sandia National Laboratories, smart loads management (controls) are investigated for their potential to increase the fatigue life of offshore wind turbine roto...

As the siting of wind turbines increasingly transitions from shallow water to offshore deep-water locations, improving platform stability floating is becoming a growing concern. By coupling porous shell commonly used in traditional marine structures, with FOWT (floating turbine platform), new spar-buoy was designed. A numerical model investigating effect aero-hydro-mooring system developed, and...

To achieve cost-effective deployment of floating offshore wind farms, it is necessary to reduce mooring costs Floating Offshore Wind Turbines (FOWTs). Beyond the cost, in terms environmental impact, seabed disrupted area due lines should be mitigated with care. The objective this paper shed light on design parameters for cost- effective and low-footprint configurations FOWTs using coupled dynam...

In evaluating ultimate limit states for design, time-domain aeroelastic response simulations are typically carried out to establish extreme loads on offshore wind turbines. Accurate load prediction depends on proper modeling of the wind turbulence and the wave stochastic processes as well as of the turbine, the support structure, and the foundation. One method for modeling the support structure...