... of flooding, it is necessary to solve for three-dimensional, nonlinear flood flow with free surfaces, which cannot be predicted using simple equations. Additionally, flood flow is closely related to ship motion, so both flood flow and ship motion must be predicted simultaneously. In additions, the free water...

.... To validate the prediction accuracy of the updated numerical model, the 2D free-falling simulation is conducted, and the results are compared with model test data. Then, the 3D ship motion in high regular waves is simulated, and the simulation results are compared with the model test data. It is proved...

... ABSTRACT In this study, nonlinear ship motions are investigated based on the LSTM-MLP integrated machine learning model proposed by Ahn et al. (2022). In this machine learning model, the classical multilayer perceptron (MLP) neural network and long short-term memory (LSTM) layer are combined...

... ABSTRACT Ship motion prediction and wave loads calculation in time domain are investigated by a novel Multi-domain method based on potential flow theory. The computation domain is divided into the inner domain and the outer domain by imaginary control surfaces. In the inner domain, the Rankine...

.... INTRODUCTION During the actual voyage, the complex environmental factors, such as wind, waves and currents, will bring out the significant ship motions and then affect the resistance and speed of the ship. Thus, it is very important for ship safety and economy to be able to predict the seakeeping behaviors...

... engineering ocean engineering ship motion water temperature long wave dwt bulk carrier potential flow method bulk carrier water density real sea state proceedings numerical simulation qtf Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada...

... ABSTRACT In order to accurately predict ship motion in rough seas, an adaptive VMD-LSTM online prediction model is established. A heave time series of Delft-372 catamaran is used for experiment. The adaptive strategy set in this model is based on error distribution. Weights of network can...

...-SJTU. Dynamic overset grid method is used to deal with the large ship motion in waves, while the improved body force model is utilized to calculate the propeller performance. Predicted results, i.e., ship motions, thrust and torque in waves, are compared with discretized propeller results...

... on the characteristics of coupled motion were investigated. The results show that lower forward speed and large wave steepness will lead to roughly coupled motion in oblique head waves and the nonlinear characteristics of ship motions were obvious when suffering coupled motion. T-foil significantly reduces the motion...

... location deep learning machine learning estimation algorithm artificial intelligence ship motion wave height procedure model training regression learner prediction error regression model wave parameter prediction wave direction spectrum wave spectrum Proceedings of the Thirty-third...

... ABSTRACT The main objective is to investigate the possibility that machine learning can be used in the real-time simulation of ship motion. A short-term prediction of seakeeping and maneuvering is strongly required for the navigation process. However, accurate and instant prediction remains...

... is ignored and beam long-crested wave conditions are adopted. In this paper, the influence of damping and degrees-of-freedom on ship motion and acceleration are analyzed by potential flow theory. The accuracy of ship lateral acceleration prediction under different numerical models are compared...

... 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...

... numerical simulation ship motion cross wave diagram computational fluid dynamic yu lu ABSTRACT Cross sea is a kind of deformed wave with strong nonlinear. Different weather patterns cause the ocean to have two systems of currents that are at least 45 degrees in different directions, when waves...

... & offloading ship suspension point payload dynamic equation hull noise level pendulum recovery operation interaction restitution coefficient crane ship motion payload influence iceberg Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China...

... machine learning motion response heave network model artificial intelligence output data hot spot fatigue damage fatigue damage prediction neural network prediction sea state response spectrum calculation fatigue damage ship motion reference data mesh ABSTRACT A novel...

...Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-81-4; ISSN 1098-6189 www.isope.org Time-Domain 3-DOF Ship Motion...

... of long distances form operation sea regions to coastal areas, the moonpool is generally let open during drillship transit. Due to the presence of ship motions and navigation speeds, violent fluid motions occur in the moonpool, which increases the fuel consumption and endangered operation safety. Several...

... Abstract This paper takes a hatchless container ship as research object, applies the numerical calculation software SMAR and HydroStar to forecast the ship motion under extreme sea conditions. Also, Seakeeping model test to estimate ship motion and green water ingress in open cargo holds...

... analysis. Kring (1996) element method is proposed to calculate large amplitude ship motions and Huang (1997) deduced nonlinear free surface boundary condition with high accuracy and stability, in which the Rankine panel method and based on weak-scatterer hypothesis and analyzed the hydrodynamics of free...