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Keywords: spectrum
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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-23-140
.... sub-sea system irregular wave engineering spectral density max simulation spectrum elevation crest distribution upstream oil & gas turbulence model wave simulation krisofoam modeling practice significant wave height motion simulation wave generation reservoir simulation grid size...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-076
... frequency variation wave period controller offshore wind turbine engineering digital twin model development social responsibility sustainable development stiffness spectrum offshore wind turbine motion kimball algorithm detection scheme platform wave elevation data Proceedings...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-136
.... geologist sustainability plate tectonics tlp japan government social responsibility wind turbine mast sub-sea system excitation tlp-based irregular wave spectrum dynamic analysis simulation result seismic excitation asia government wind energy environmental condition earthquake extreme...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-078
... of METHODOLOGY introduces the semi-spar FOWT scheme and the optimization procedure, the section of RESULTS AND DISCUSSION shows and analyses the results. Finally, the main conclusions are presented in CONCLUSION. sustainability sub-sea system spectrum foundation china government wind energy heave...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-094
... (including frequency-domain modelling), here we present a motion study response for the TALOS wave energy converter for selected wave climates. The analysis applies to realistic irregular wave conditions, assuming a semi-empirical spectrum representative of chosen wave climates, and hydrodynamic modelling...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-177
... asia government engineering spectrum pile array china government upstream oil & gas reservoir characterization liquefaction seabed response wave-induced pore-water pressure jeng liquefaction depth near-trapping phenomenon coastal engineering equation of state pore-water...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-575
... ABSTRACT In this paper, the large-eddy simulation (LES) method with WALE sub-grid scale model is applied to study the wall pressure fluctuation characteristic of a NACA0015 airfoil protrusion. The flow field, pressure fluctuating time-average characteristic, self-power spectrum, and wavenumber...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-590
... Williams-Hawkings (FW-H) acoustic analogy equation has been adopted to calculate the unsteady cavitation dynamics and the power and frequency spectrum of the noise. It finds out that the sound pressure level of the noise in high-frequency region has a dramatic rise of nearly 60dB when cavitation occurs...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-301
... techniques have been explored and developed in recent decades. Nielsen (2006) outlined the theory to estimate directional wave spectrum based on ship response measurements. Two methods were introduced. The first is a parametric method, which assumes the wave spectrum is composed by parameterized wave...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-347
... ABSTRACT Waves in the West African sea usually show typical mixed characteristics of wind sea and swell sea, showing double peaks in wave spectrum, including low frequency swell peak and high frequency wind peak. In bimodal seas, swell can be present at different percentages and different...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-346
... of waves in laboratory tests can be performed from either Fast Fourier Transform-based approaches like the Random Phase Method or the Random Complex Spectrum, where the energy of the wave spectrum is introduced at discrete frequencies. Alternative, methods based on digital filters may be applied...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-321
... are described by ITTC (International Towing Tank Conference) spectrum. The extreme roll motions are simulated in this wave environment with two different conditions, coupled roll-pitch-heave (3-DOF) and coupled sway-roll-pitch-heave (4-DOF), to study the effect of sway motion on ship extreme roll under dead...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-342
... the disconnections of the mooring system, risers, and land BOP stack is complicated. Moorings are inherently limited because of a ship-shaped vessel's relatively weak motion characteristics. Instead, they have fully advanced DPS. sub-sea system rao drilling equipment spectrum force spectrum frequency...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-436
... container ship hydraulic fracturing deformation crack propagation superposition sea state hull structure ultra-large container ship spectrum crack size analysis method fatigue crack propagation short-term sailing condition fatigue life Proceedings of the Thirty-third (2023) International...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-415
... breakwater geological subdiscipline spectrum engineering wave condition geologist reservoir simulation reservoir characterization wave period bimodal wave pore pressure variation wave loading seabed response boundary wave spectrum equation bimodal spectrum zhang Proceedings of the Thirty...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-411
... ABSTRACT Wave directional spectrum can be used to analyze local wave conditions and extract wave statistical parameters. Existing real-time measuring instruments, such as buoys and pressure wave meters, can be used to observe two-dimentional (2D) wave spectrum, but installation and maintenance...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-368
... approach of elastic tank walls. It is implemented into a computationally efficient numerical multi-body simulation program, which is flexible in geometry and dynamic load spectrum. The above work on the sloshing problem is limited to regular excitations or regular waves. However, in a real ocean...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-369
... membrane tank long-and short-crested wind sea proceedings ship speed co 2 liquified natural gas gas monetization lng wind sea encounter angle event count spectrum probability engineering conference wave height polar engineering conference impact load exceedance probability impact pressure...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-288
... superpositions and transition function type to study and compare with the wave spectrum. The effects of various factors on the accuracy of wave simulation are analyzed and the appropriate wave simulation strategy is finally proposed. The results show that the simulated irregular wave inversion results agree well...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-294
... problem that arises with following waves when converting the encountered wave spectrum of a travelling vessel to an absolute wave spectrum due to the ambiguous Doppler shift (e.g. Iseki and Ohtsu (2000)). It seems to the authors of this paper, that a new and ongoing wave of interest for SSE using ship...

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