A wind turbine blade's structural dynamic response is simulated and analysed with the goal of characterizing the presence and severity of a shear web disbond. Computer models of a 5 MW offshore utility-scale wind turbine were created to develop effective algorithms for detecting such damage. Through data analysis and with the use of blade measurements, a shear web disbond was quantified accordi...

Over the past decades, Floating Offshore Wind Turbine (FOWT) has gained increasing attention in wind engineering due to rapidly growing energy demands. However, difficulties turbine maintenance will increase harsh operational conditions. Fault diagnosis techniques play a crucial role enhance reliability of FOWTs and reduce cost offshore energy. In this paper, novel data-driven fault method usin...

It is now widely accepted that a shift towards renewable energy production is needed in order to avoid further anthropogenically induced climate change. The ocean provides a largely untapped source of renewable energy. As a result, harvesting electrical power from the wind and tides has sparked immense government and commercial interest but with relatively little detailed understanding of the p...

A technical challenge in deploying a floating offshore wind turbine shallow water is dissolution of the poor performance catenary mooring system due to decreased absorbable potential energy. It common practice improve by using buoys and sinkers enhance energy absorbed system. In this research, tower-shaped buoy (tower-buoy) proposed which sinker integrated structure. design, relatively large ar...

Uncertainties related to fatigue damage estimation of non-linear systems are highly dependent on the tail behaviour and extreme values of the stress range distribution. By using a combination of the First Order Reliability Method (FORM) and Monte Carlo simulations (MCS), the accuracy of the fatigue estimations may be improved for the same computational efforts. The method is applied to a bottom...

Wind turbines components are subject to considerable stresses and fatigue due to extreme environmental conditions to which they are exposed, especially those located offshore. With this aim, the present work explores two different approaches on fatigue damage estimation and remaining useful life predictions of wind turbine blades. The first approach uses the rainflow counting algorithm. The sec...

This paper investigates the dynamic response of a fully nonlinear model DeepCWind floating offshore wind turbine (FOWT) after one its three-catenary mooring systems is broken. The drift area platform, pitch motion turbine, and tension on two ends line are main foci; in addition, single mathematical formula provided this study to predict maximum surge direction. After platform reaches new equili...