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Keywords: design
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Proceedings Papers

Proc. ASME. OMAE2023, Volume 9: Offshore Geotechnics; Petroleum Technology, V009T10A013, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-106589
... Abstract Estimating the stiffness of large diameter monopiles used to support offshore wind turbines is an important step in the design process. This is generally done using load-transfer functions in the form of independent (Winkler) springs to represent the relationship between the net soil...
Proceedings Papers

Proc. ASME. OMAE2023, Volume 3: Materials Technology; Pipelines, Risers, and Subsea Systems, V003T04A008, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-104633
... Abstract This paper presents a novel approach to manage irregular external loads thro ugh an enhanced design of unbonded flexible pipeline caused by lateral buckling of tensile armour wires. The design challenge is to predict the armour wire kinematics due to random loading conditions. Over...
Proceedings Papers

Proc. ASME. OMAE2023, Volume 2: Structures, Safety, and Reliability, V002T02A052, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-107918
... with different design variables, where various type, plane alignment, cross-sections, tethers, and anchoring systems are discussed. Critical parameters for potential design are discussed, including submergence depth, Buoyancy-Weight-Ratio, and cross-section dimensions. The second part introduces an optimisation...
Proceedings Papers

Proc. ASME. OMAE2023, Volume 2: Structures, Safety, and Reliability, V002T02A027, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-104845
...Proceedings of the ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering OMAE2023 June 11-16, 2023, Melbourne, Australia OMAE2023-104845 SOME BACKGROUND FOR THE 2023 REVISION OF THE RECOMMENDED PRACTICE DNV-RP-C203 FATIGUE DESIGN OF OFFSHORE STEEL STRUCTURES Inge...
Proceedings Papers

Proc. ASME. OMAE2023, Volume 2: Structures, Safety, and Reliability, V002T02A025, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-102864
...) over its life cycle is critical in the design phase. Several VIV fatigue damage prediction models have been and are being developed by oil companies and research institutes. Uncertainties in the input data, such as in the effective axial tension, wall thickness, structural damping, water depth...
Proceedings Papers

Proc. ASME. OMAE2022, Volume 8: Ocean Renewable Energy, V008T09A008, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-78762
... Abstract Floating solar energy is facing formidable challenges distinguish it from other marine systems. Wind parameters and wind/wave interaction effects strongly challenge the design and analysis of the floating solar systems. Having a broad area exposed to the wind in presence...
Proceedings Papers

Proc. ASME. OMAE2021, Volume 9: Ocean Renewable Energy, V009T09A036, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-65761
... dynamics. However, even ROM approaches might be relatively time demanding to be used efficiently during initial stages of design, particularly within optimization schemes. A simple model is herein proposed to treat this rather complex problem in the design context. For a range of current intensities...
Topics: Design, Vortices
Proceedings Papers

Proc. ASME. OMAE2020, Volume 1: Offshore Technology, V001T01A019, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18126
... Abstract The motion analysis of floating offshore structures is a major design aspect which has to be considered in the early design stage. The existing design environment E4 is an open software framework, which is being developed by the Institute of Ship Design and Ship Safety, comprising...
Proceedings Papers

Proc. ASME. OMAE2020, Volume 1: Offshore Technology, V001T01A027, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18817
...DEVELOPMENT OF A SIMULATION ENVIRONMENT FOR HYBRID PROPULSION DRIVE TRAINS: UTILIZATION OF A HOLISTIC APPROACH TO PREDICT THE DYNAMIC BEHAVIOR IN THE EARLY DESIGN STAGE Leif-Erik Jannsen Department of Marine Engineering Hamburg University of Technology Hamburg, Germany Email: leif.jannsen@tuhh.de...
Proceedings Papers

Proc. ASME. OMAE2011, Volume 3: Materials Technology; Jan Vugts Symposium on Design Methodology of Offshore Structures; Jo Pinkster Symposium on Second Order Wave Drift Forces on Floating Structures; Johan Wichers Symposium on Mooring of Floating Structures in Waves, 131-139, June 19–24, 2011
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2011-49175
... to be transferred into characteristic S-N curves that represent a predefined probability of survival. Characteristic S-N curves are also often denoted design S-N curves as these curves are often used directly for fatigue life assessment of structures without application of a material factor. A few large scale tests...
Proceedings Papers

Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 125-134, June 6–11, 2010
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2010-20649
... 10 01 2011 The DNV-RP-C203 Fatigue Design of Offshore Steel Structures is being used by a number of different companies for fatigue assessment of different types of structures. This has resulted in questions to DNV about background for the different sections in the document...
Proceedings Papers

Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 4, 159-164, June 6–11, 2010
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2010-20266
... of the UP in the velocity or resistance and volume compared with the TUV on the same premise through theoretical arithmetic. So far, a model, we designed in the similar way of designing an airplane, has been manufactured to make sure that the UP could work in water. In a model trial in the tank, the model...
Topics: Design
Proceedings Papers

Proc. ASME. OMAE2008, Volume 5: Materials Technology; CFD and VIV, 87-95, June 15–20, 2008
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2008-57104
... amplitude variable amplitude spectrum fatigue limit Miner’s rule fracture mechanics design Proceedings of the 27th International Conference on Offshore Mechanics and Arctic Engineering OMAE2008 June15-20, 2008, Estoril, Portugal I M an 2 ox Therefore, fatigue tests were performed on strip...
Proceedings Papers

Proc. ASME. OMAE2007, Volume 2: Structures, Safety and Reliability; Petroleum Technology Symposium, 145-149, June 10–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2007-29179
... of environmental parameter values will be objective and reasonable in engineering design. Trivariate Nested Logistic Distribution environmental conditions extreme value correlation design Proceedings of the 26th International Conference on Offshore Mechanics and Arctic Engineering OMAE2007 June 10-15...
Proceedings Papers

Proc. ASME. OMAE2007, Volume 1: Offshore Technology; Special Symposium on Ocean Measurements and Their Influence on Design, 315-329, June 10–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2007-29325
... 22 05 2009 Several initiatives have been undertaken by the operators, engineering companies, product manufacturers, and regulatory bodies to enable increased use of steel catenary riser (SCR) design in development of deepwater and ultra-deepwater fields. Some of these efforts focus...
Proceedings Papers

Proc. ASME. OMAE2002, 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 2, 525-535, June 23–28, 2002
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2002-28462
... MODU MOPU Reliability Design Jack-up Reliability based techniques have been extensively used in the assessment and re-assessment of existing offshore structures as well as in the calibration of design standards, particularly those adopting an LRFD format. At a design level, however...
Proceedings Papers

Proc. ASME. OMAE2002, 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 2, 207-214, June 23–28, 2002
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2002-28198
... of minimum offshore structures for the North Sea [1 ]. Three minimum structures were compared with a conventional 4-leg jacket structure. These structures all were designed for specific conditions at a site in the North Sea using current design and engineering criteria appropriate for these structures...
Proceedings Papers

Proc. ASME. OMAE2002, 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 1, 613-620, June 23–28, 2002
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2002-28343
... Floating Bridge Mooring System Design Analysis Discrete Element Method In order to get better understanding on the response of floating bodies, different design aspects of mooring lines has been investigated in this paper. Mooring lines are categerized into two types; the catenary...
Proceedings Papers

Proc. ASME. OMAE2003, Volume 3: Materials Technology; Ocean Engineering; Polar and Arctic Sciences and Technology; Workshops, 377-395, June 8–13, 2003
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2003-37496
... 09 01 2009 Risers and sections of pipeline in free-span can be subjected to cyclic loading from flow-induced vibrations and other fluctuating forces leading to fatigue loading of the structure. Single-sided welds are of particular interest, however current design codes take...
Proceedings Papers

Proc. ASME. OMAE2006, Volume 3: Safety and Reliability; Materials Technology; Douglas Faulkner Symposium on Reliability and Ultimate Strength of Marine Structures, 537-550, June 4–9, 2006
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2006-92314
... 07 10 2008 This paper presents a critical review of current design methods, including their background and relevant experimental data, for assessing the fatigue performance of steel fillet welds with respect to failure in the weld throat. The main focus is on fillet or partial...