Results 21 to 30 of about 6,046 (306)

Prediction of Ship Motions in Irregular Waves Based on Response Amplitude Operators Evaluated Experimentally in Noise Waves

open access: yesPolish Maritime Research, 2021
The most common methods for predicting ship roll motions in a specified sea state are direct measurements of motions in a representative irregular wave realisation (time domain) or calculations of motions from response amplitude operators (RAOs) in the ...
Bielicki Sebastian
doaj   +1 more source

Effect of 6-DOF Oscillation of Ship Target on SAR Imaging

open access: yesRemote Sensing, 2021
Ship targets are high-value military and civilian targets with broad application prospects. However, the precise focusing of ships is still a difficult issue because of their complicated six-degree-of-freedom motions on the sea surface.
Binbin Zhou   +3 more
doaj   +1 more source

Simulation-Based Analysis of Ship Motions in Short-Crested Irregular Seas [PDF]

open access: yesJournal of Eta Maritime Science, 2017
Demonstration of the seakeeping calculation results other than polar diagrams and Cartesian plots is important during the initial and detail design stages of naval platforms due to the necessity of numerical simulations (time series data) for the design ...
Kıvanç Ali ANIL   +2 more
doaj   +1 more source

Model Analysis and Modified Control Method of Ship-Mounted Stewart Platforms for Wave Compensation

open access: yesIEEE Access, 2021
Offshore installations e.g. marine transportation, oil platforms, etc. are strongly depended on sea conditions. To increase workable time of carrying out these operations, a Stewart platform is installed on a ship to serve as a motion compensation base ...
Yunfei Cai   +4 more
doaj   +1 more source

A comprehensive study on ship motion and load responses in short-crested irregular waves

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2019
Wave-induced ship motion and load responses are usually investigated on the assumption that the incident waves are long-crested. The realistic sea waves are however short-crested irregular waves.
Jialong Jiao, Chaohe Chen, Huilong Ren
doaj   +1 more source

Representation of small passenger ferry maneuvering motions by practical modular model

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2021
Maneuvering motions of a ship in calm water are studied through the concept of MMG model. Governing forces are defined by the use of available empirical formulae that require only main ship particulars as input variables.
Ardhana Wicaksono   +2 more
doaj   +1 more source

Prediction of Ship Unsteady Maneuvering in Calm Water by a Fully Nonlinear Ship Motion Model

open access: yesModelling and Simulation in Engineering, 2012
This is the continuation of our research on development of a fully nonlinear, dynamically consistent, numerical ship motion model (DiSSEL). In this study we will report our results in predicting ship motions in unsteady maneuvering in calm water.
Ray-Qing Lin, Tim Smith, Michael Hughes
doaj   +1 more source

Effects of hull form parameters on seakeeping for YTU gulet series with cruiser stern

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2014
This study aims to identify the relations between seakeeping characteristics and hull form parameters for YTU Gulet series with cruiser stern. Seakeeping analyses are carried out by means of a computer software which is based on the strip theory and ...
Ferdi Cakici, Muhsin Aydin
doaj   +3 more sources

Hydrodynamic moments due to water on ship deck

open access: yesComputer Assisted Methods in Engineering and Science, 2023
An analysis of the ship stability requires computer simulations of the ship motions leading to its capsizing. The large amplitudes of roll motion of the ship are connected with phenomena of immersing of ship deck into water.
Witold Błocki
doaj  

Theoretical investigation on the seakeeping performance of a supply vessel with X-bow

open access: yesAnnals of "Dunărea de Jos" University of Galaţi: Fascicle XI Shipbuilding, 2018
The X-bow concept was developed by Ulstein company, in order to increase the ship hydrodynamic performance. Low resistance, reduced fuel consumption, smoother motion and low acceleration levels are some of the hydrodynamics improvements.
Dan Obreja, Mădălina Dajbog
doaj   +1 more source

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