Sequence-based modeling of deep learning with LSTM and GRU networks for structural damage detection of floating offshore wind turbine blades

DE Choe, HC Kim, MH Kim - Renewable Energy, 2021 - Elsevier
This paper proposes and tests a sequence-based modeling of deep learning (DL) for
structural damage detection of floating offshore wind turbine (FOWT) blades using Long …

Scaling strategies for multi-purpose floating structures physical modeling: state of art and new perspectives

C Ruzzo, S Muggiasca, G Malara, F Taruffi… - Applied Ocean …, 2021 - Elsevier
Multi-purpose floating platforms are emerging as a promising concept in ocean engineering
applications, thanks to their capability of ensuring system integration, cost reduction and …

Structural health monitoring of towers and blades for floating offshore wind turbines using operational modal analysis and modal properties with numerical-sensor …

HC Kim, MH Kim, DE Choe - Ocean Engineering, 2019 - Elsevier
In the present study, a structural health monitoring (SHM) method for floating offshore wind
turbines (FOWTs) is suggested and tested using operational modal analysis (OMA) with …

[HTML][HTML] Diagnosis of the health status of mooring systems for floating offshore wind turbines using autoencoders

N Gorostidi, D Pardo, V Nava - Ocean Engineering, 2023 - Elsevier
Floating offshore wind turbines (FOWTs) show promise in terms of energy production,
availability, and sustainability, but remain unprofitable due to high maintenance costs. This …

Health assessment and ambient vibration testing of the “Ponte delle Torri” of Spoleto during the 2016–2017 Central Italy seismic sequence

I Roselli, M Malena, M Mongelli, N Cavalagli… - Journal of Civil …, 2018 - Springer
Abstract The Ponte delle Torri is a large medieval masonry bridge, one of the main
architectural heritage of Spoleto, Italy. The location of the bridge is less than 50 km from the …

[HTML][HTML] A novel concept of floating absorber for motion mitigation in floating offshore wind turbines

G Alotta, V Laface, G Failla, C Ruzzo, F Arena - Engineering Structures, 2023 - Elsevier
This paper proposes the innovative concept of floating absorber for motion mitigation in
floating wind turbines on spar supports. The floating absorber consists in a spar floater …

A two-degree-of-freedom tuned mass damper for offshore wind turbines on floating spar supports

V Laface, G Alotta, G Failla, C Ruzzo, F Arena - Marine Structures, 2022 - Elsevier
This paper presents an original approach to mitigate the motion of floating spar supports for
offshore wind turbines. A two-degree-of-freedom tuned mass damper device, consisting of a …

Reproduction of slow-drift motions of a floating wind turbine using second-order hydrodynamics and Operational Modal Analysis

A Pegalajar-Jurado, H Bredmose - Marine Structures, 2019 - Elsevier
Slow-drift forcing and damping are important for an accurate reproduction of the low-
frequency motion of floating offshore wind turbines. In this study we present a numerical …

[HTML][HTML] Structural modeling and failure assessment of spar-type substructure for 5 mw floating offshore wind turbine under extreme conditions in the east sea

K Ha, JB Kim, Y Yu, HS Seo - Energies, 2021 - mdpi.com
Not only the driving for offshore wind energy capacity of 12 GW by Korea's Renewable
Energy 2030 plan but also the need for the rejuvenation of existing world-class shipbuilders' …

On intermediate-scale open-sea experiments on floating offshore structures: Feasibility and application on a spar support for offshore wind turbines

C Ruzzo, V Fiamma, M Collu, G Failla, V Nava, F Arena - Marine Structures, 2018 - Elsevier
Experimental investigation of floating structures represents the most direct way for achieving
their dynamic identification and it is particularly valuable for relatively new concepts, such as …