...-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...

... 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...

... deep learning artificial intelligence europe government machine learning upstream oil & gas netherlands government prediction duration ship motion vmd-lstm model confidence interval prediction accuracy sea state time sery sequence neural network prediction accuracy...

... 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 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...

.... 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...

... 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...

... 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...

... 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...

... ABSTRACT This paper describes the development of a computer program based on the 3D panel-based Green Function Method (GFM) to evaluate the ship motions and loads Response Amplitude Operator (RAO) at moderate forward speed. In this approach, the zero speed Green function is used to determine...

... & 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...

... values, and the reasonable comparison results are obtained. Finally, the ship motion response characteristics under different parameters of cross wave are studied. The research shows that the motion characteristics of ships are closely related to the combined direction angle and wavelength of cross wave...

... ABSTRACT A novel ship fatigue damage's prediction model based on the artificial neural network (ANN) approach is proposed in this paper. The ship motion response is obtained as the input database and the hot spot fatigue damage is obtained as the output database. The relationship between ship...

... 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...

... filter with Monte Carlo approximation to the model updates the model via measured data in real-time to predict the actual phenomena. As a result, the prediction capability of a ship's motion improves, and the ship's added mass and damping coefficients are evaluated directly through the filtering step...

... constructed auto-regressive and moving average (ARMA) models of ship motions by approximation of the theoretical frequency response functions. These were based on the 2-Degree-of-Freedom (2-DOF) motion equations of heave and pitch modes, and the coupled longitudinal motions were considered. The obtained...

... conference proceedings safety factor 1 thirty-first max tension ship max sway ship motion international ocean cable Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference www.isope.org Rhodes, Greece, June 20 25, 2021 Copyright © 2021 by the International...