Results 1 to 10 of about 16,108 (315)

Characterization of Surface Motion of Submerged Unmanned Ship in Freak Waves Environment

open access: yesShanghai Jiaotong Daxue xuebao
When a ship encounters abnormal waves, the instantaneous impact will cause a drastic change in the wave load, potentially leading to capsizing in serious cases. To investigate the special ship type that can effectively withstand the impact of freak waves,
GONG Chao, HOU Yuanhang, ZHANG Yuqi, LIU Dianyong, WAN Yuejin
doaj   +1 more source

Control of Ship Roll Motion [PDF]

open access: yes, 2014
The undesirable effects of roll motion of ships (rocking about the longitudinal axis) became noticeable in the mid-nineteenth century when significant changes were introduced to the design of ships as a result of sails being replaced by steam engines and the arrangement being changed from broad to narrow hulls.
Perez, Tristan, Blanke, Mogens
openaire   +2 more sources

Improved Online Kalman Smoothing Method for Ship Maneuvering Motion Data Using Expectation-Maximization Algorithm

open access: yesJournal of Marine Science and Engineering
Despite the pivotal role of filtering and smoothing techniques in the preprocessing of ship maneuvering data for robust identification, persistent challenges in reconciling noise suppression with dynamic fidelity preservation have limited algorithmic ...
Wancheng Yue, Junsheng Ren
doaj   +1 more source

Calculation and Analysis of Rolling Hydrodynamic Coefficients of Free-Flooding Ship Based on CFD

open access: yesJournal of Marine Science and Engineering
As free-flooding ships are a type of vessel with openings on their hull surfaces, accurately calculating and analyzing their roll hydrodynamic coefficients is of great significance for ship motion prediction.
Chaofan Li   +3 more
doaj   +1 more source

Computer aided simulation for non-linear model of ship motion

open access: yesVietnam Journal of Mechanics, 1994
The ship motion is simulated on computer by non-linear model of small vibration and strong non-linear model. The results are compared between two models. The influences of different parameters to the ship motion are considered.
Nguyen Nhat Le
doaj   +1 more source

Experimental Research on Ship Wave-Induced Motions of Tidal Turbine Catamaran

open access: yesFluids
In this research, the effect of ship navigation on the mooring system of a deep-sea floating tidal energy platform is experimentally investigated.
Tinghui Liu   +3 more
doaj   +1 more source

Analysis of Image Domain Characteristics of Maritime Rotating Ships for Spaceborne Multichannel SAR

open access: yesRemote Sensing
Ship targets are usually high-value targets, and synthetic aperture radar (SAR) moving ship indication is of great importance in maritime traffic monitoring.
Yongkang Li, Cuiqian Cao, Hao Li
doaj   +1 more source

A Data-Driven Method for Ship Motion Forecast

open access: yesJournal of Marine Science and Engineering
Accurate forecasting of ship motion is of great significance for ensuring maritime operational safety and working efficiency. A data-driven ship motion forecast method is proposed in this paper, aiming at the problems of low generalization of a single ...
Zhiqiang Jiang, Yongyan Ma, Weijia Li
doaj   +1 more source

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