A new wave spectrum resembling procedure based on ship motion analysis

V Piscopo, A Scamardella, S Gaglione - Ocean Engineering, 2020 - Elsevier
A new wave spectrum resembling procedure, based on two subsequent steps, is developed
to detect the sea state parameters, namely the wave peak period, the significant wave height …

A LSTM deep learning model for deterministic ship motions estimation using wave-excitation inputs

S Duan, Q Ma, L Huang, X Ma - ISOPE International Ocean and Polar …, 2019 - onepetro.org
When ships sailing at the ocean, six degrees of freedom of ship motions occur due to the
sea waves. The wave-induced ship motions always bring adverse effects on carrying out …

Motions assessment using a time domain approach for a research ship in Antarctic waters

S Pennino, A Scamardella - Journal of Marine Science and Engineering, 2023 - mdpi.com
An approach combining frequency and time domain analysis is introduced in this study for
ship motions assessment. The open-source NEMOH code is utilized to compute the …

Experimental and numerical investigations of ship parametric rolling in regular head waves

S Ma, W Ge, RC Ertekin, Q He, W Duan - China Ocean Engineering, 2018 - Springer
Parametric rolling is one of five types of the ship stability failure modes as proposed by IMO.
The periodic change of the metacentric height is often considered as the internal cause of …

Hybrid time-domain model for ship motions in nonlinear extreme waves using HOS method

Q Xiao, R Zhu, S Huang - Ocean Engineering, 2019 - Elsevier
Abstract HOS (High-Order Spectral) method incorporated with a 3-D time-domain ship
motion model based on the weakly nonlinear assumption has been proposed and applied to …

[HTML][HTML] A new wave spectrum assessment procedure based on spearman rank correlation algorithm

V Piscopo, S Ascione, A Scamardella - Ocean Engineering, 2024 - Elsevier
The paper provides a new wave spectrum reconstruction algorithm for short-crested sea
state conditions in the frequency-domain, based on the wave buoy analogy and the …

Application of the Fourier–Kochin theory for the diffraction and radiation of free-surface waves about stationary floating bodies

B Uğurlu, CG Soares - Ocean Engineering, 2021 - Elsevier
The classical problem of time-harmonic diffraction and radiation of free-surface flows due to
wave–body interaction is revisited based on the Fourier–Kochin theory for zero forward …

Vertical acceleration control using LQG approach for a passenger ship

F Cakici - Ocean Engineering, 2021 - Elsevier
In this paper, vertical motion (heave, roll, and pitch) state estimation and control simulation
are performed by using the LQG approach. Cummins' equation is used to represent the …

Comparative summary of approaches used with the impulse response method

M Wermbter, L Altenbach, O Detlefsen… - IOP Conference …, 2023 - iopscience.iop.org
This paper presents a comparison of various methodologies to calculate the seakeeping
behaviour of ships using the impulse response method. Developments of several authors …

Identification of ship motion performance of coupled heave and pitch using experimental irregular time-series data

T Hanaki, M Minoura - Journal of Marine Science and Technology, 2022 - Springer
We propose to estimate parameters of the system model based on the equation of motion
using the time histories of the wave elevation and the ship's heave and pitch motions to …