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Keywords: curvature
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Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-521
... cross section lines can be created. Finally, the smooth hull surfaces are generated based on NURBS skinning method. As for the sail-assisted VLCC, the local hull parameters used for parametric modeling are fullness of lower part of the longitudinal bow profile, curvature of forebody section lines...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-249
... upstream oil & gas norway government test sample test rig curvature actuator subsea processing sub-sea system compression elevator wire tension europe government controls and umbilicals axial compression steel wire termination installation cable sensor beam test method...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-208
... investigated. Full-scale four-point bending tests and extensive numerical parametric studies have been performed, e.g., Van Es (2016), Vasilikis (2016) and the RFCS Combitube final report (2016). united states government curvature equation application piping simulation canada government critical...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-246
... layer as it passes through the plane. As these latter described elements, and more, are considered to be neither circular or rectangular, the methods presented in Karlsen (2021) and (2022) are not directly applicable. sub-sea system curvature hysteresis model boundary geometric shape stress...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-251
...-section contact force stiffness cross section analysis social responsibility cable helical component configuration axial strain sustainability curvature cross section history dynamic cable geir skeie wind energy deformation complex cross-section proceedings expression evaluation...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-377
... transportation curvature rectangular mobile tank liquid holder containment system liquefied natural gas mobile tank contact surface tank 1 inflatable element gas monetization inflatable component mattress mitigation eenkhoorn membrane material Proceedings of the Thirty-third (2023...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-381
... ABSTRACT For modern shipbuilding, line heating is widely employed as an effective method to form complex double-curvature plates, and the shrinkage control method is the key to form the target plate. Taking sail plate forming as an example, heating simulation is realized by thermal elastic...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-196
..., the hydrodynamic calculation is carried out, which the hydrodynamic parameters of the hull are allowed based on the potential flow theory. And then, we performed dynamic coupling analysis of pipe-laying vessel-mooring-pipeline. The influence of the stinger on the curvature radius of the pipe is considered...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-236
.... In this study, the Consistent Particle Method (CPM) is enhanced by incorporating the continuum surface force (CSF) model and applied to simulate the oil spill process. Firstly, the advantage of CPM in computing the curvature of an interface, which is key in simulating the interfacial tension force...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2125
... Abstract Traditional pipe-in-pipe systems installed by reel-lay are straightened on the lay-vessel. The process results in the inner and outer pipes having opposite residual moment and the inner pipe is under-straightened, which typically means hogging residual curvature in the sag bend...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3180
..., on its own, suffers from one major drawback. That is, the smearing of the liquid–gas interface. This has a significant impact on the ability to compute interface curvature accurately and hence surface tension effects were often neglected. multiphase flow fluid dynamics upstream oil & gas...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2127
... backing steel pipe provides structural strength while the CRA liner provides corrosion protection. piping design piping simulation corrosion management oilfield chemistry h2s management offshore pipeline upstream oil & gas mechanically lined pipe curvature liner engineering thickness...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2140
...'. It is therefore important that the accuracy of the test methods, including instrumentation for cross section measurement data, is evaluated. A key parameter in cross section analysis is bending stiffness. This paper presents a new method to measure the curvature during a sinusoidal bending stiffness test...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2139
... system orientation order element coefficient friction stress amplitude cpu time upstream oil & gas stress coefficient controls and umbilicals mechanical stress global analysis order stress hysteresis stress range local analysis curvature fatigue damage st order helix fatigue life...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2137
... to find freespans and line curvatures from the terrain geometry. Eigenfrequencies and mode shapes are then derived for each span type, with current velocities and variables that define span vibration characteristics and fatigue. With the presented method, only estimates of soil conditions...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2176
... power cable cross section subsea system axial force structural behavior mesh size irregular shape curvature axial stiffness noncritical component sheath layer basecase filler1 2 filler1 filler2 On Modelling Alternatives of Non-critical Components in Dynamic Offshore Power Cables Naiquan...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2181
... in the Barents Sea is investigated. Numerical simulations are performed by using the software RIFLEX under SIMA workbench. Critical responses such as curvature and axial forces are checked. For the new offloading hose, it is important to check the combined bending-tension loading capacity. The results show...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1265
... of low drift velocities; changes in drift directions; ice path curvature. are also important metrics of the ice floe drift variability. Low ice drift velocities trigger an interest because the ice floe that slowed down can further move in any direction. To characterize changes in the direction...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-176
... may end up with a suboptimal solution. vertical plane fitness constraint continuity machine learning autonomous underwater vehicle path planning kinematic constraint curvature evolutionary algorithm hierarchical path planning waypoint artificial intelligence iteration vehicle...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-123
... ABSTRACT This paper presents the introduction of a method and algorithm smoothing the raw data and calculating the radius of curvature of the as-laid position of the pipeline using local polynomial regression. It reports the development of a database of pipelines previously built using various...

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