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Keywords: rao
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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-23-117
... matrix operation artificial intelligence rao simulation crane vessel crane load crane load motion natural frequency crane pendulum lift condition crane operation model test load case simulation model originate Proceedings of the Thirty-third (2023) International Ocean and Polar...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-145
... midstream oil & gas tanker interaction side-by-side hydrodynamic performance receiving tanker sway side-by-side mooring gas monetization freight & logistics services wave drift force velocity potential engineering rao Proceedings of the Thirty-third (2023) International Ocean...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-354
.... The computational results are encouraging in that the response amplitude operators (RAOs) of sway and roll motion show good agreement with the data measured in incident regular waves with various wave lengths. In addition, the hydrodynamic forces acting on the body and its tanks are analyzed, and the effects...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-375
... tank. The potentiometer was used to measure the roll and pitch motion of the ship. Two load cells were attached between the ship bottom and the heave rod to measure the wave forces acting on the ship hull. Firstly, the pitch RAO and added resistance without the LNG tank are compared with the results...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-380
... stiffness correction method natural frequency rectangular tank model test europe government internal tank natural period mass matrix tank equation spherical tank loading condition vcg fluid method matrix rao roll rao Proceedings of the Thirty-third (2023) International Ocean and Polar...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-326
... are analyzed by statistical analysis method which is based on motion times series and spectral analysis which employed the motion RAOs in regular waves and wave spectrum density. The motion response showed a good agreement between the spectral and statistical analysis methods, and satisfy with the seakeeping...
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 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-570
... of an advanced semi-SWATH model. The vertical motion responses were estimated at different wave encounter frequencies. upstream oil & gas swath water depth rao terrain condition mooring system wave period wave height bottom section subsea system island reef topography motion response...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-152
... ABSTRACT It is known from the wave basin test and field measurement that RAOs of certain type of floating structures are susceptible to viscous effects. The viscous loading mechanism is usually captured in a mixed modeling frequency domain solver, or a coupled time domain analysis. However...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-120
... north america government wave force upstream oil & gas platform hull loading condition drilling platform subsea system wave impact force body surface wave direction deep water jack-up preloading rao wave impact load united states government operation critical sea state...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-308
... papanikolaou froude number 0 ittc boundary value problem ship simonsen coefficient green function ship motion equation rao irspeed 0 marine transportation forward speed exp forward speed correction frequency domain ABSTRACT This paper describes the development...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-072
... orifice rao failure condition air chamber water surface test result air reservoir 1 simulation result wave energy converter matrix Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022 by the International...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1221
... of the floating structure in the frequency domain is presented and the corresponding RAO's are calculated. The hydrodynamic characteristics are determined using matched axisymmetric eigen-function expansions, while the linearized loading contributed by the WT (gravitational, inertial and aerodynamic) is estimated...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1106
...-linear and result in more challenges. The hydrodynamic sensitivity study was performed with variations of time domain analysis of the motion response, the corresponding RAOs different barge drafts, different wave direction, etc. There are 6 kinds and mooring results are obtained. This comparative study...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1166
... under surge decay and pitch decay motion was studied using ReFRESCO, this work extends the application of ReFRESCO to simulate responses of semi-submersible under two regular waves conditions in consistence with experiment. Response Amplitude Operators (RAOs) are then derived from the computational...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1173
... to inaccurate description of the dynamic and stochastic characteristics of responses. subsea system social responsibility fish cage wind energy sustainability rao heave drag force energy conservation renewable energy wamit wind turbine numerical model pitch rao surge drag coefficient...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1313
... are calculated for regular and irregular waves in various heading angles. And, the results were compared for the coupled and lumped methods to investigate agreements or differences of the methods. renewable energy connector roll rao matrix force vector regular wave surge rao stress rao equation...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-675
... water depth tank barge coupling motion rao upstream oil & gas bathymetry coupling effect frequency coupling sway angular frequency incident wave equation different slope amplitude Coupling effects of sloshing and barge motion in variable bathymetry Yan Su1, Shikun Zhou2, Zhiliang...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-362
.... The sensitivity study on the gap resonance to the draft of the FHST is further discussed. Some potential solutions to reduce the gap resonance are proposed for the future work. wamit model test subsea system wave period analytical solution upstream oil & gas rao resonance narrow gap numerical...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-641
... on modal superposition. Frequency-domain RAOs of VBM and stress are studied by comparing hydroelasticity and rigid-body direct calculation, and then time-domain wave case is designed to pursue spring effect. Some conclusions are obtained to guide structure design. INTRODUCTION Large floating structure...

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