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Proceedings Papers

Mooring System ULS Analysis Based on Empirical QTFs of Wave Drift Loads

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Nuno Fonseca, Galin Tahchiev, Øyvind Ygre Rogne
Proc. ASME. OMAE2024, Volume 1: Offshore Technology, V001T01A038, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-127825
https://doi.org/10.1115/OMAE2024-127825
View Paper titled, Mooring System ULS Analysis Based on Empirical QTFs of Wave Drift Loads
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Topics: Mooring, Wave drift loads, Floating structures, FPSO, Vessels, Approximation, Design, Diffraction, Engineering simulation, Flow (Dynamics)
Proceedings Papers

Combination of Potential Theory and Morison-Like Viscous Drag Terms in the Hydrodynamic Model of a 12 MW Semi-Submersible Floating Wind Turbine

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Carlos Eduardo Silva de Souza, Nuno Fonseca, Petter Andreas Berthelsen
Proc. ASME. OMAE2024, Volume 7: Ocean Renewable Energy, V007T09A030, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-125799
https://doi.org/10.1115/OMAE2024-125799
View Paper titled, Combination of Potential Theory and Morison-Like Viscous Drag Terms in the Hydrodynamic Model of a 12 MW Semi-Submersible Floating Wind Turbine
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Topics: Drag (Fluid dynamics), Floating wind turbines, Potential theory (Physics), Semi-submersible offshore structures
Proceedings Papers

Nylon Ropes for Mooring of Floating Offshore Wind Turbines: The NYMOOR Project

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Nuno Fonseca, Heidi Moe Føre, Stian Høegh Sørum, Rune Gaarder, Bernt Johan Leira, Rui Pedro Faria, Michael Kent
Proc. ASME. OMAE2024, Volume 7: Ocean Renewable Energy, V007T09A057, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-130846
https://doi.org/10.1115/OMAE2024-130846
View Paper titled, Nylon Ropes for Mooring of Floating Offshore Wind Turbines: The NYMOOR Project
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Topics: Floating wind turbines, Mooring, Nylon fabrics, Ropes, Stress, Wind, Design, Elasticity, Floating structures, Mechanical properties
Proceedings Papers

Contribution of Waves to Horizontal Low Frequency Motions of Floating Offshore Wind Turbines

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Fatemeh H. Dadmarzi, Nuno Fonseca, Petter Andreas Berthelsen
Proc. ASME. OMAE2024, Volume 7: Ocean Renewable Energy, V007T09A060, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-136471
https://doi.org/10.1115/OMAE2024-136471
View Paper titled, Contribution of Waves to Horizontal Low Frequency Motions of Floating Offshore Wind Turbines
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Topics: Damping, Floating wind turbines, Mooring, Surges, Turbines, Waves, Wind, Seas, Wind velocity, Dynamic response
Proceedings Papers

Comparison of Morison Forces With CFD Modelling for a Surface Piercing Column of a FOWT

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Fatemeh H. Dadmarzi, Andrea Califano, Nuno Fonseca, Petter Andreas Berthelsen
Proc. ASME. IOWTC2022, ASME 2022 4th International Offshore Wind Technical Conference, V001T01A005, December 7–8, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IOWTC2022-98419
https://doi.org/10.1115/IOWTC2022-98419
View Paper titled, Comparison of Morison Forces With CFD Modelling for a Surface Piercing Column of a FOWT
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Topics: Computational fluid dynamics, Modeling, Stress, Waves
Proceedings Papers

Prediction of Heave and Pitch Low Frequency Wave Forces and Motions of a Semi-Submersible Floating Wind Turbine and Comparison With Model Test Data

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Nuno Fonseca, Carlos Eduardo Siva de Sousa, Petter Andreas Berthelsen
Proc. ASME. IOWTC2022, ASME 2022 4th International Offshore Wind Technical Conference, V001T01A001, December 7–8, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IOWTC2022-95009
https://doi.org/10.1115/IOWTC2022-95009
View Paper titled, Prediction of Heave and Pitch Low Frequency Wave Forces and Motions of a Semi-Submersible Floating Wind Turbine and Comparison With Model Test Data
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Topics: Floating wind turbines, Semi-submersible offshore structures, Wave forces, Damping, Wave drift forces, Waves, Approximation, Wave drift, Engineering simulation, Flow (Dynamics)
Proceedings Papers

Identification of Wave Drift Forces on a Floating Wind Turbine Sub-Structure With Heave Plates and Comparison With Predictions

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Nuno Fonseca, Synne Nybø, José Miguel Rodrigues, Aitor Gallego, Carlos Garrido
Proc. ASME. OMAE2022, Volume 8: Ocean Renewable Energy, V008T09A063, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-81467
https://doi.org/10.1115/OMAE2022-81467
View Paper titled, Identification of Wave Drift Forces on a Floating Wind Turbine Sub-Structure With Heave Plates and Comparison With Predictions
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Topics: Floating wind turbines, Plates (structures), Wave drift forces, Wave drift, Flow (Dynamics), Seas, Waves, Mooring, Oceans, Spectra (Spectroscopy)
Proceedings Papers

Numerical Investigation of Mean Drift Forces Acting on Restrained FPSO in Regular Waves by Linear and Nonlinear Tools

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Csaba Pakozdi, Nuno Fonseca
Proc. ASME. OMAE2022, Volume 5B: Ocean Engineering; Honoring Symposium for Professor Günther F. Clauss on Hydrodynamics and Ocean Engineering, V05BT12A011, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-79052
https://doi.org/10.1115/OMAE2022-79052
View Paper titled, Numerical Investigation of Mean Drift Forces Acting on Restrained FPSO in Regular Waves by Linear and Nonlinear Tools
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Topics: FPSO, Waves, Computational fluid dynamics, Wave drift forces, Flow (Dynamics), Simulation, Seas, Fourier analysis, Mooring, Physics
Proceedings Papers

Increase of Wave Drift Forces in Severe Seastates Due to Wave Frequency Viscous Damping

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Nuno Fonseca, Babak Ommani
Proc. ASME. OMAE2022, Volume 1: Offshore Technology, V001T01A034, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-81461
https://doi.org/10.1115/OMAE2022-81461
View Paper titled, Increase of Wave Drift Forces in Severe Seastates Due to Wave Frequency Viscous Damping
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Topics: Damping, Wave drift forces, Wave frequency, Computational fluid dynamics, Flow (Dynamics), FPSO, Boundary element methods, Design, Emission spectroscopy, Engineering simulation
Proceedings Papers

The Likely Cause of Loss of Position for Dynamically Positioned Semi-Submersibles Under Moderate Wave Conditions

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Karl E. Kaasen, Halgeir Ludvigsen, Nuno Fonseca, Halvor Lie, Lars Geir Bjørheim
Proc. ASME. OMAE2022, Volume 1: Offshore Technology, V001T01A028, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-79149
https://doi.org/10.1115/OMAE2022-79149
View Paper titled, The Likely Cause of Loss of Position for Dynamically Positioned Semi-Submersibles Under Moderate Wave Conditions
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Topics: Filters, Semi-submersible offshore structures, Simulation, Stress, Vessels, Waves
Proceedings Papers

Wave Drift Forces and Low Frequency Drift Motions for Mooring Analysis of a Spread Moored FPSO

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Min Zhang, Nuoya Xu, Tianen Yang, Nuno Fonseca, Fredrik Mood
Proc. ASME. OMAE2022, Volume 5A: Ocean Engineering, V05AT06A040, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-79066
https://doi.org/10.1115/OMAE2022-79066
View Paper titled, Wave Drift Forces and Low Frequency Drift Motions for Mooring Analysis of a Spread Moored FPSO
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Topics: Damping, FPSO, Mooring, Transfer functions, Wave drift forces
Proceedings Papers

Experimental Investigation of the Coupling Between Aero- and Hydrodynamical Loads On A 12 MW Semi-Submersible Floating Wind Turbine

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Maxime Thys, Carlos Souza, Thomas Sauder, Nuno Fonseca, Petter Andreas Berthelsen, Espen Engebretsen, Herbjørn Haslum
Proc. ASME. OMAE2021, Volume 9: Ocean Renewable Energy, V009T09A030, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62980
https://doi.org/10.1115/OMAE2021-62980
View Paper titled, Experimental Investigation of the Coupling Between Aero- and Hydrodynamical Loads On A 12 MW Semi-Submersible Floating Wind Turbine
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Topics: Floating wind turbines, Semi-submersible offshore structures, Stress, Testing
Proceedings Papers

Calibration of a Time-Domain Hydrodynamic Model for A 12 MW Semi-Submersible Floating Wind Turbine

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Carlos Eduardo Silva de Souza, Nuno Fonseca, Petter Andreas Berthelsen, Maxime Thys
Proc. ASME. OMAE2021, Volume 9: Ocean Renewable Energy, V009T09A028, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62857
https://doi.org/10.1115/OMAE2021-62857
View Paper titled, Calibration of a Time-Domain Hydrodynamic Model for A 12 MW Semi-Submersible Floating Wind Turbine
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Topics: Calibration, Floating wind turbines, Semi-submersible offshore structures, Damping, Waves, Stress, Computer simulation, Seas, Wave drift, Approximation
Proceedings Papers

A Concept for Floating Offshore Wind Mooring System Integrity Management Based on Monitoring, Digital Twin and Control Technologies

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Alberto Puras Trueba, Jonathan Fernández, Carlos A. Garrido-Mendoza, Alessandro La Grotta, Jon Basurko, Nuno Fonseca, Iratxe Arrabi, Feike Savenije, Payam Pourmand
Proc. ASME. OMAE2021, Volume 9: Ocean Renewable Energy, V009T09A019, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-61936
https://doi.org/10.1115/OMAE2021-61936
View Paper titled, A Concept for Floating Offshore Wind Mooring System Integrity Management Based on Monitoring, Digital Twin and Control Technologies
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Topics: Control systems, Mooring, Ocean engineering, Wind
Proceedings Papers

Sensitivity of a Floating Bridge Global Responses to Different Wave Drift Force Models

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Carlos Eduardo Silva de Souza, Nuno Fonseca, Marit Irene Kvittem
Proc. ASME. OMAE2021, Volume 6: Ocean Engineering, V006T06A010, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62777
https://doi.org/10.1115/OMAE2021-62777
View Paper titled, Sensitivity of a Floating Bridge Global Responses to Different Wave Drift Force Models
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Topics: Bridges (Structures), Wave drift forces, Wave drift, Stress, Mooring, Approximation, Deflection, Design, Engineering simulation, Girders
Proceedings Papers

Model Tests and Numerical Prediction of the Low Frequency Motions of a Moored Ship in Shallow Water With a Wave Splitting Method

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Nuno Fonseca, Galin Tahchiev, Sébastien Fouques, Carl Trygve Stansberg, José Miguel Rodrigues
Proc. ASME. OMAE2020, Volume 1: Offshore Technology, V001T01A036, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18806
https://doi.org/10.1115/OMAE2020-18806
View Paper titled, Model Tests and Numerical Prediction of the Low Frequency Motions of a Moored Ship in Shallow Water With a Wave Splitting Method
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Topics: Mooring, Ships, Water, Waves, Computer simulation, Oceans, Uncertainty, Engineering simulation, Sensors, Simulation
Proceedings Papers

Second-Order Difference-Frequency Loads on FPSOs by Full QTF and Relevant Approximations

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Espen Engebretsen, Zhiyuan Pan, Nuno Fonseca
Proc. ASME. OMAE2020, Volume 1: Offshore Technology, V001T01A061, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18132
https://doi.org/10.1115/OMAE2020-18132
View Paper titled, Second-Order Difference-Frequency Loads on FPSOs by Full QTF and Relevant Approximations
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Topics: Approximation, FPSO, Mooring, Stress
Proceedings Papers

Time-Domain Hydrodynamic Model for Mooring Analysis of a Spread Moored FPSO With Calibration of Wave Drift Forces

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Min Zhang, Junrong Wang, Junfeng Du, Nuno Fonseca, Galin Tahchiev, Espen Engebretsen
Proc. ASME. OMAE2020, Volume 1: Offshore Technology, V001T01A064, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18717
https://doi.org/10.1115/OMAE2020-18717
View Paper titled, Time-Domain Hydrodynamic Model for Mooring Analysis of a Spread Moored FPSO With Calibration of Wave Drift Forces
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Topics: Calibration, Damping, FPSO, Mooring, Transfer functions, Wave drift forces
Proceedings Papers

Sensitivity Analysis of Parameters for FPSO Model Updating

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Qihao Wu, Min Zhang, Tian’en Yang, Nuoya Xu, Junrong Wang, Junfeng Du, Nuno Fonseca, Galin Tahchiev
Proc. ASME. OMAE2020, Volume 6B: Ocean Engineering, V06BT06A015, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18621
https://doi.org/10.1115/OMAE2020-18621
View Paper titled, Sensitivity Analysis of Parameters for FPSO Model Updating
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Topics: FPSO, Mooring, Sensitivity analysis
Journal Articles

Low Frequency Wave Loads and Damping of Four MODUs in Severe Seastates With Current

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Nuno Fonseca, Carl Trygve Stansberg, Kjell Larsen, Rune Bjørkli, Tjerand Vigesdal, Oddgeir Dalane
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. February 2021, 143(1): 011203.
Paper No: OMAE-19-1189
https://doi.org/10.1115/1.4047544
Published Online: July 28, 2020
View Article titled, Low Frequency Wave Loads and Damping of Four MODUs in Severe Seastates With Current
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Topics: Damping, Flow (Dynamics), Wave drift forces, Waves, Surges, Semi-submersible offshore structures, Transfer functions