Results 161 to 170 of about 427,939 (206)

Ship motion modeling and simulation in Ship Handling Simulator

2012 International Conference on Audio, Language and Image Processing, 2012
For developed irregular waves, wave heights or wave amplitudes are gained using the wave spectrums. Based on the hypothesis of Froude-Krylov, ship shape is predigested box. Wave forces and moments to ship motion can be calculated. They are added in the motion mathematical models, and ship six degrees of freedom mathematical models are given.
Zhang Xiufeng, Jin Yicheng, Yin Yong, Ren Hongxiang, Liu Xiuwen   +4 more
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Mechanics of sailing ship motion

Mathematica Applicanda, 2015
The Author, looking into the rules defining the sailing ship efficiency, delineates a number of mathematical equations that are proved in practice to be accurate. The equation of the sailing ship efficiency in a downwind sector is similar to the curves from Wulff grid, while the equation in an windward sector is similar to the fourth degree curve, not ...
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Limiting Ship Motions for Small Ships in Heavy Seas

Ocean Engineering, 1997
Abstract This paper presents two independent methodologies for defining the seakeeping performance of vessels in various sea conditions. The results of a unique series of sea trials are compared to a new time domain computer program (FREDYN) that predicts ship performance and dangerous operating conditions in extreme seas.
Grant A. Rossignol, William L. Thomas
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Evacuation from ships : account for ship motion

1999
A transnational BriteEuram programme on evacuation of passengers from ships is presented. Recent disasters on ferries of the roll-on/roll-off type have led to higher requirements for safety.These requirements are formulated in terms of overall performance rather than performance of a number of isolated components.
Boer, L.C., Bles, W.
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Forces Related to Motions of Moored Ships/ Analytical Methods of Moored Ship Motions

1988
The behaviour of moored ships in harbours, coastal areas or offshore is extremely complex, due to nonlinearities and dynamic effects. It is of vital importance to have methods available by which the behaviour of the moored ship can be predicted in the design stage, in order to determine the extreme loads in the worst conditions and to assess the ...
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Ship Roll Motion Control

2010
The technical feasibility of roll motion control devices has been amply demonstrated for over 100 years. Performance, however, can still fall short of expectations because of deciencies in control system designs, which have proven to be far from trivial due to fundamental performance limitations.
Perez, Tristan, Blanke, Mogens
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Fluid Dynamics and Ship Motion

2014
This chapter is a brief introduction to the very difficult problem of ship motion. The difficulties of this problem are due to the many factors determining the behavior of a ship during the navigation: the form of the ship, the sea waves, the wind action, etc.
Antonio Romano, Addolorata Marasco
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Aerosol-cloud-climate cooling overestimated by ship-track data

Science, 2021
Franziska Glassmeier, Fabian Hoffmann, Jill S Johnson   +2 more
exaly  

On Nonlinear Ship Motions in Irregular Waves

Journal of Ship Research, 1966
It is shown that the transfer functions characterizing the nonlinear response of ships in irregular seas can be obtained from high order moments of the ship motions by an extension of standard spectral-analysis techniques. Hence, full-scale measurements can be used to determine, for example, the coefficients of excess wave resistance and lateral drift.
openaire   +2 more sources

An empirical ship domain based on evasive maneuver and perceived collision risk

Reliability Engineering and System Safety, 2021
Lei Du, Osiris A Valdez Banda, Yamin Huang   +2 more
exaly