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Proceedings Papers

Recommendations for a Fatigue Design Analysis Calibrated Using Structural Reliability Analysis

Torfinn Hørte, Siril Okkenhaug
Proc. ASME. OMAE2022, Volume 2: Structures, Safety, and Reliability, V002T02A057, June 5–10, 2022
Paper No: OMAE2022-81463
DOI: https://doi.org/10.1115/OMAE2022-81463
View Paper titled, Recommendations for a Fatigue Design Analysis Calibrated Using Structural Reliability Analysis
Click here to open pdf in another window PDF for Recommendations for a Fatigue Design Analysis Calibrated Using Structural Reliability Analysis
Topics: Event history analysis, Fatigue design, Mooring, Safety, Fatigue, Reliability, Chain, Fatigue analysis, Fatigue limit, Seas
Proceedings Papers

Probabilistic Assessment of the Effect of Bolt Pre-Load Loss Over Time in Offshore Wind Turbine Bolted Ring-Flanges Using a Gaussian Process Surrogate Model

Jack Jorgensen, Melinda Hodkiewicz, Edward Cripps, Ghulam Mubashar Hassan
Proc. ASME. OMAE2022, Volume 8: Ocean Renewable Energy, V008T09A033, June 5–10, 2022
Paper No: OMAE2022-79265
DOI: https://doi.org/10.1115/OMAE2022-79265
View Paper titled, Probabilistic Assessment of the Effect of Bolt Pre-Load Loss Over Time in Offshore Wind Turbine Bolted Ring-Flanges Using a Gaussian Process Surrogate Model
Click here to open pdf in another window PDF for Probabilistic Assessment of the Effect of Bolt Pre-Load Loss Over Time in Offshore Wind Turbine Bolted Ring-Flanges Using a Gaussian Process Surrogate Model
Topics: Flanges, Offshore wind turbines, Stress, Approximation, Design, Event history analysis, Fatigue limit, Maintenance, Reliability, Clearances (Engineering)
Proceedings Papers

Implementation of a Method for Free-Spanning Pipeline Analysis

Joannes Gullaksen
Proc. ASME. OMAE2021, Volume 4: Pipelines, Risers, and Subsea Systems, V004T04A017, June 21–30, 2021
Paper No: OMAE2021-61312
DOI: https://doi.org/10.1115/OMAE2021-61312
View Paper titled, Implementation of a Method for Free-Spanning Pipeline Analysis
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Topics: Free spanning pipelines, Vortex-induced vibration, Waves, Flow (Dynamics), Cross-flow, Pipelines, Stress, Dynamic response, Software development, Arches
Proceedings Papers

Design and Dynamic Analysis of a Compact 10 MW Medium Speed Gearbox for Offshore Wind Turbines

Shuaishuai Wang, Amir R. Nejad, Torgeir Moan
Proc. ASME. IOWTC2019, ASME 2019 2nd International Offshore Wind Technical Conference, V001T01A034, November 3–6, 2019
Paper No: IOWTC2019-7617
DOI: https://doi.org/10.1115/IOWTC2019-7617
View Paper titled, Design and Dynamic Analysis of a Compact 10 MW Medium Speed Gearbox for Offshore Wind Turbines
Click here to open pdf in another window PDF for Design and Dynamic Analysis of a Compact 10 MW Medium Speed Gearbox for Offshore Wind Turbines
Topics: Design, Dynamic analysis, Mechanical drives, Offshore wind turbines, Resonance, Stress, Bearings, Dynamic models, Engineering standards, Fatigue limit
Proceedings Papers

Improved Fatigue Design of SCR Modified Miner’s Rule

Hans Olav Knagenhjelm, Mons Hauge, Bård Nyhus
Proc. ASME. OMAE2019, Volume 5B: Pipelines, Risers, and Subsea Systems, V05BT04A033, June 9–14, 2019
Paper No: OMAE2019-95344
DOI: https://doi.org/10.1115/OMAE2019-95344
View Paper titled, Improved Fatigue Design of SCR Modified Miner’s Rule
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Topics: Fatigue design, Pipes, Carbon steel, Cycles, Waves, Fatigue, Fracture (Materials), Fracture (Process), Pipeline risers, Risers (Casting)
Proceedings Papers

ECAs and Lateral Buckling

Andrew Cosham, Kenneth A. Macdonald, Ian MacRae, Malcolm Carr
Proc. ASME. OMAE2019, Volume 5B: Pipelines, Risers, and Subsea Systems, V05BT04A018, June 9–14, 2019
Paper No: OMAE2019-95529
DOI: https://doi.org/10.1115/OMAE2019-95529
View Paper titled, ECAs and Lateral Buckling
Click here to open pdf in another window PDF for ECAs and Lateral Buckling
Topics: Buckling, Fracture (Materials), Pipelines, Stress-strain curves, Work hardening, Yield strength, Design, Fitness-for-service, Fracture mechanics, Pipes
Proceedings Papers

Mean Load Impact on Mooring Chain Fatigue Capacity: Lessons Learned From Full Scale Fatigue Testing of Used Chains

Øystein Gabrielsen, Kjell Larsen, Oddgeir Dalane, Hans B. Lie, Svein-Arne Reinholdtsen
Proc. ASME. OMAE2019, Volume 3: Structures, Safety, and Reliability, V003T02A058, June 9–14, 2019
Paper No: OMAE2019-95083
DOI: https://doi.org/10.1115/OMAE2019-95083
View Paper titled, Mean Load Impact on Mooring Chain Fatigue Capacity: Lessons Learned From Full Scale Fatigue Testing of Used Chains
Click here to open pdf in another window PDF for Mean Load Impact on Mooring Chain Fatigue Capacity: Lessons Learned From Full Scale Fatigue Testing of Used Chains
Topics: Chain, Fatigue, Fatigue testing, Mooring, Stress, Corrosion, Design, Fatigue limit, Fracture (Materials), Life extension
Proceedings Papers

A New Fully-Detailed Finite Element Model of Spiral Strand Wire Ropes for Fatigue Life Estimate of a Mooring Line

Federico Bussolati, Martin Guiton, Pierre-Alain Guidault, Yann Poirette, Michael Martinez, Olivier Allix
Proc. ASME. OMAE2019, Volume 1: Offshore Technology; Offshore Geotechnics, V001T01A054, June 9–14, 2019
Paper No: OMAE2019-96165
DOI: https://doi.org/10.1115/OMAE2019-96165
View Paper titled, A New Fully-Detailed Finite Element Model of Spiral Strand Wire Ropes for Fatigue Life Estimate of a Mooring Line
Click here to open pdf in another window PDF for A New Fully-Detailed Finite Element Model of Spiral Strand Wire Ropes for Fatigue Life Estimate of a Mooring Line
Topics: Fatigue life, Finite element model, Mooring, Ropes, Wire, Stress, Fatigue, Tension, Computer simulation, Computer software
Proceedings Papers

On Short-Term Fatigue Analysis for Wind Turbine Tower of Two Semi-Submersible Wind Turbines Including Effect of Startup and Shutdown Processes

Chenyu Luan, Torgeir Moan
Proc. ASME. IOWTC2018, ASME 2018 1st International Offshore Wind Technical Conference, V001T01A046, November 4–7, 2018
Paper No: IOWTC2018-1078
DOI: https://doi.org/10.1115/IOWTC2018-1078
View Paper titled, On Short-Term Fatigue Analysis for Wind Turbine Tower of Two Semi-Submersible Wind Turbines Including Effect of Startup and Shutdown Processes
Click here to open pdf in another window PDF for On Short-Term Fatigue Analysis for Wind Turbine Tower of Two Semi-Submersible Wind Turbines Including Effect of Startup and Shutdown Processes
Topics: Fatigue analysis, Semi-submersible offshore structures, Wind turbines, Fatigue damage, Stress, Floating wind turbines, Transients (Dynamics), Design, Mooring, Databases
Proceedings Papers

Fatigue Load Reductions in Offshore Wind Turbine Monopile Foundations in Co-Located Wind-Wave Arrays

Caitlyn E. Clark, Joey Velarde, Jannie Sønderkær Nielsen
Proc. ASME. IOWTC2018, ASME 2018 1st International Offshore Wind Technical Conference, V001T01A037, November 4–7, 2018
Paper No: IOWTC2018-1024
DOI: https://doi.org/10.1115/IOWTC2018-1024
View Paper titled, Fatigue Load Reductions in Offshore Wind Turbine Monopile Foundations in Co-Located Wind-Wave Arrays
Click here to open pdf in another window PDF for Fatigue Load Reductions in Offshore Wind Turbine Monopile Foundations in Co-Located Wind-Wave Arrays
Topics: Fatigue, Offshore wind turbines, Stress, Wind waves, Waves, Climate, Fatigue analysis, Fatigue damage, Fatigue limit, Ocean engineering
Proceedings Papers

Influence of System Level Parameters on the Fatigue Life of Jacket Substructures for 10 MW and 20 MW Wind Turbines

Davide Conti, Anand Natarajan, Asger Bech Abrahamsen
Proc. ASME. OMAE2018, Volume 10: Ocean Renewable Energy, V010T09A055, June 17–22, 2018
Paper No: OMAE2018-77568
DOI: https://doi.org/10.1115/OMAE2018-77568
View Paper titled, Influence of System Level Parameters on the Fatigue Life of Jacket Substructures for 10 MW and 20 MW Wind Turbines
Click here to open pdf in another window PDF for Influence of System Level Parameters on the Fatigue Life of Jacket Substructures for 10 MW and 20 MW Wind Turbines
Topics: Fatigue life, Wind turbines, Design, Stress, Control systems, Engineering simulation, Excitation, Fatigue limit, Generators, Oceans
Proceedings Papers

Reliability Analysis and Risk-Based Methods for Planning of Operation and Maintenance of Offshore Wind Turbines

John Dalsgaard Sørensen
Proc. ASME. OMAE2017, Volume 9: Offshore Geotechnics; Torgeir Moan Honoring Symposium, V009T12A039, June 25–30, 2017
Paper No: OMAE2017-62713
DOI: https://doi.org/10.1115/OMAE2017-62713
View Paper titled, Reliability Analysis and Risk-Based Methods for Planning of Operation and Maintenance of Offshore Wind Turbines
Click here to open pdf in another window PDF for Reliability Analysis and Risk-Based Methods for Planning of Operation and Maintenance of Offshore Wind Turbines
Topics: Event history analysis, Maintenance, Offshore wind turbines, Risk, Reliability, Wind turbines, Calibration, Design, Safety, Structural elements (Construction)
Proceedings Papers

Modeling the Fatigue Damage Evolution in Welded Joints

Zbigniew Mikulski, Vidar Hellum, Tom Lassen
Proc. ASME. OMAE2017, Volume 4: Materials Technology, V004T03A009, June 25–30, 2017
Paper No: OMAE2017-61201
DOI: https://doi.org/10.1115/OMAE2017-61201
View Paper titled, Modeling the Fatigue Damage Evolution in Welded Joints
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Topics: Fatigue damage, Modeling, Welded joints, Fracture (Materials), Stress, Fatigue cracks, Fatigue life, Fatigue limit, Crack propagation, Cycles
Proceedings Papers

Summary and Recommendations for Safe Mooring System Design in ULS and ALS

Siril Okkenhaug, Torfinn Hørte, Øivind Paulshus
Proc. ASME. OMAE2017, Volume 3B: Structures, Safety and Reliability, V03BT02A004, June 25–30, 2017
Paper No: OMAE2017-61534
DOI: https://doi.org/10.1115/OMAE2017-61534
View Paper titled, Summary and Recommendations for Safe Mooring System Design in ULS and ALS
Click here to open pdf in another window PDF for Summary and Recommendations for Safe Mooring System Design in ULS and ALS
Topics: Design, Mooring, Reliability, Frequency-domain analysis, Safety, Calibration, Time-domain analysis, Gulf of Mexico, Water, American Petroleum Institute
Proceedings Papers

Stresses in Tensile Armour Layers of Unbounded Flexible Risers Loaded With External Pressure: Application to Lateral Buckling Mode

Fabien Caleyron, Jean-Marc Leroy, Martin Guiton, Pascal Duchêne, Pascal Estrier, Kristof Vraniskoski, Alexandre Damiens
Proc. ASME. OMAE2017, Volume 5A: Pipelines, Risers, and Subsea Systems, V05AT04A006, June 25–30, 2017
Paper No: OMAE2017-61133
DOI: https://doi.org/10.1115/OMAE2017-61133
View Paper titled, Stresses in Tensile Armour Layers of Unbounded Flexible Risers Loaded With External Pressure: Application to Lateral Buckling Mode
Click here to open pdf in another window PDF for Stresses in Tensile Armour Layers of Unbounded Flexible Risers Loaded With External Pressure: Application to Lateral Buckling Mode
Topics: Armor, Buckling, External pressure, Flexible risers, Stress, Pipes, Wire, Design, Engineering models, Kinematics
Proceedings Papers

Sensitivity Study of Calculated Jacket Fatigue Damage due to Long Term Distribution of Wave Heights

Hege Halseth Bang, Siri Hoel Smedsrud, Øistein Hagen, Terje Nybø
Proc. ASME. OMAE2017, Volume 1: Offshore Technology, V001T01A021, June 25–30, 2017
Paper No: OMAE2017-61783
DOI: https://doi.org/10.1115/OMAE2017-61783
View Paper titled, Sensitivity Study of Calculated Jacket Fatigue Damage due to Long Term Distribution of Wave Heights
Click here to open pdf in another window PDF for Sensitivity Study of Calculated Jacket Fatigue Damage due to Long Term Distribution of Wave Heights
Topics: Fatigue damage, Waves, Seas, Electromagnetic scattering, Engineering simulation, Fatigue, Simulation, Stress, Design, Dimensions
Proceedings Papers

Application of the Global Optimization Method to the Preliminary Design of Tension Leg Platforms

Jeong-Du Kim, Beom-Seon Jang
Proc. ASME. OMAE2016, Volume 3: Structures, Safety and Reliability, V003T02A077, June 19–24, 2016
Paper No: OMAE2016-54567
DOI: https://doi.org/10.1115/OMAE2016-54567
View Paper titled, Application of the Global Optimization Method to the Preliminary Design of Tension Leg Platforms
Click here to open pdf in another window PDF for Application of the Global Optimization Method to the Preliminary Design of Tension Leg Platforms
Topics: Design, Optimization, Tension-leg platforms, Tendons, Hull, Safety, Algorithms, Modeling, Weight (Mass), Collapse
Proceedings Papers

Hydrodynamic Modeling of Large-Diameter Bottom-Fixed Offshore Wind Turbines

Erin E. Bachynski, Harald Ormberg
Proc. ASME. OMAE2015, Volume 9: Ocean Renewable Energy, V009T09A051, May 31–June 5, 2015
Paper No: OMAE2015-42028
DOI: https://doi.org/10.1115/OMAE2015-42028
View Paper titled, Hydrodynamic Modeling of Large-Diameter Bottom-Fixed Offshore Wind Turbines
Click here to open pdf in another window PDF for Hydrodynamic Modeling of Large-Diameter Bottom-Fixed Offshore Wind Turbines
Topics: Modeling, Offshore wind turbines, Waves, Kinematics, Design, Diffraction, Stress, Accounting, Fatigue, Fatigue limit
Proceedings Papers

Probabilistic Analysis and Risk Assessment of Deep Water Composite Production Riser Against Fatigue Limit State

Manander Singh, Suhail Ahmad
Proc. ASME. OMAE2015, Volume 3: Structures, Safety and Reliability, V003T02A062, May 31–June 5, 2015
Paper No: OMAE2015-41576
DOI: https://doi.org/10.1115/OMAE2015-41576
View Paper titled, Probabilistic Analysis and Risk Assessment of Deep Water Composite Production Riser Against Fatigue Limit State
Click here to open pdf in another window PDF for Probabilistic Analysis and Risk Assessment of Deep Water Composite Production Riser Against Fatigue Limit State
Topics: Composite materials, Fatigue limit, Pipeline risers, Risers (Casting), Risk assessment, Water, Reliability, Seas, Damage, Stress
Proceedings Papers

Establishing Operational Fatigue Limits for Short-Term Riser Operations

Shankar Sundararaman, Mark Cerkovnik, Luiza Ferreira, Phil Ward
Proc. ASME. OMAE2015, Volume 3: Structures, Safety and Reliability, V003T02A058, May 31–June 5, 2015
Paper No: OMAE2015-41116
DOI: https://doi.org/10.1115/OMAE2015-41116
View Paper titled, Establishing Operational Fatigue Limits for Short-Term Riser Operations
Click here to open pdf in another window PDF for Establishing Operational Fatigue Limits for Short-Term Riser Operations
Topics: Fatigue limit, Pipeline risers, Risers (Casting), Fatigue, American Petroleum Institute, Drilling, Design, Fatigue analysis, Water, Currents