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1-20 of 127
Keywords: roll motion
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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-23-536
... ABSTRACT Real-time deterministic prediction of ship roll motion in the next few seconds is crucial in decision making to perform actions and sensitive activities. The difficulty in ship motion prediction is that ship motion has non-linear and non-stationary characteristics. Time series...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-511
... ship oblique wave nonlinear simulation wave direction simulation coarse mesh interaction problem element method velocity vector acceleration potential algorithm free surface equation body surface pressure distribution derivative term roll motion ABSTRACT Harsh sea...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-576
...-foil amplitude engineering roll motion froude number wave amplitude Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-340
... model, the difference was analyzed by comparing the prediction results among the models. In addition, the characteristics of roll motion according to the magnitude of the initial disturbance and the possibility of parametric rolling were quantitatively assessed using a fully nonlinear model...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-339
... ABSTRACT In this study, a free surface type of Anti-roll Tank (hereinafter ART) is applied to reduce the roll motion of a containership. In order to obtain roll damping characteristics and roll motion responses of the containership with and without ART, a model test was carried out including...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-338
... ABSTRACT The Power-activation Feed-forward Neural Network (PFN) is used to achieve real-time prediction of the ship's parametric roll motion. The theoretical rationality of real-time prediction based on the ship's rolling motion time series data is verified. Autoregressive and simplified...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-321
... ABSTRACT Extreme roll motion of a ship under dead ship condition is a significant research object of the Second Generation Intact Stability Criteria developed by the IMO (International Maritime Organization). In this study, an in-house CFD (computational fluid dynamics) solver is applied...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-354
... Maritime Research Institute of Japan, by using peer-to-peer file exchange to retain the advantages of each discretization technique. In this study, the fundamental validity of the code is confirmed by analyzing the sway, heave, and roll motion of a floating body with partially filled tanks...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-371
..., using a Fourier decomposition of the tank motion. reservoir surveillance frequency tank motion sway motion europe government excitation amplitude equation tank production monitoring surface elevation coordinate system roll motion surface height ship-fixed coordinate system polar...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-286
... upstream oil & gas cfd method simulation ship motion lateral acceleration coefficient test value wave condition marine transportation excessive acceleration roll motion amplitude rankine panel method frequency different numerical model rankine source method ship accuracy...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-342
... as a mathematical pendulum, thereby organizing a single-degree-of-freedom (SDOF) system. floating production system payload excitation marine transportation fpso operation icebreaker platform design subsea system roll motion floating production storage and offloading floating production storage...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-378
... ABSTRACT Roll damping is an input parameter for the second-generation intact stability criteria and is also a key factor for predicting large roll motions and capsizing in waves, accurately estimating roll damping is still a challenging task with large roll motion. In order to provide...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-172
... upstream oil & gas subsea system model test heave floating production storage & offloading load case cfpso roll motion floating production storage and offloading amplitude frequency pure wave case eigenperiod cylinder load condition eigenfrequency floating production...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3158
... decision tree learning ship calculation nonlinear potential flow machine learning hybrid method ikeda roll motion marine transportation roll decay test prediction implementation eddy regression formula artificial intelligence amplitude model test equation simulation...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3206
... and hull, a series of wave and liquid sloshing, so as to efficiently evaluate the roll motion studies are carried out by scholars. The common method is based on the response of a ship with liquid compartment in waves. The coupling potential flow theory (Francescutto, 1994; Rognebakke, 2001; Gao, problem...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3208
... to investigate the effects on roll motion of water inside the compartments below the main vehicle deck of a passenger Ro Ro ship The coupled interaction between the damaged ship motion and flooding and the shape of the free surface inside the flooded compartment and water is very complicated. This paper studies...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3203
... freight & logistics services model 1 experiment artificial intelligence model 2 tank force pressure value design point time series frequency simulation sph computation smoothed particle hydrodynamic roll motion critical wave episode Proceedings of the Thirty-first (2021) International...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3236
... crest freak wave equation communication zone tank heave motion ship motion roll motion wave-structure interaction Freak Wave-Induced Ship Motion with Sloshing Tanks Based on a HOS-CFD Coupling Method Yuan Zhuang1, Decheng Wan1*, Zhonghua Li2 1 Computational Marine Hydrodynamics Lab (CMHL...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3168
... ABSTRACT This paper presents a novel two-step hydrodynamic coefficients identification method to identify the damping and restoring moment coefficients of ship roll motion in irregular waves. The random decrement technique (RDT) is first used to convert the responses into random decrement...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3169
... ABSTRACT To solve the problem of large roll motion of mono-hull ship of 1000-ton class under high sea conditions, three kinds of ship types are designed including Angle, Round Bilge and Mixed hull types. Roll damping of these ship types are calculated by CFD method, meanwhile, model tests...
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