Results 201 to 210 of about 7,122 (239)
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Applicable Analysis, 1994
We consider the unsteady motion of a rigid body floating in a basin under the action of gravity, of the water pressure and of other prescribed extenrnal forces. The system is assumed to be initially in a rest position of equilibrium and the linear model is adopted.
PAGANI, CARLO DOMENICO +2 more
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We consider the unsteady motion of a rigid body floating in a basin under the action of gravity, of the water pressure and of other prescribed extenrnal forces. The system is assumed to be initially in a rest position of equilibrium and the linear model is adopted.
PAGANI, CARLO DOMENICO +2 more
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Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences, 1991
It is well known that ship performance is degraded in rough weather. In moderately severe conditions every task on board the ship will take longer than it does in calm weather. The passengers and crew may be seasick and they will have to take more care when moving around the ship to avoid injury.
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It is well known that ship performance is degraded in rough weather. In moderately severe conditions every task on board the ship will take longer than it does in calm weather. The passengers and crew may be seasick and they will have to take more care when moving around the ship to avoid injury.
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Naval Engineers Journal, 1980
ABSTRACT“Seakeeping … is the ability of our ships to go to sea, and Successfully and safely execute their missions despite adverse environmental factors.”— VAdm. R.E. Adamson. USNIn June 1975, VAdm. R.E. Adamson, USN, then Commander Naval Surface Forces, U.S. Atlantic Fleet, addressed the participants of the Seakeeping Workshop [1] and established what
EDWARD N. COMSTOCK, ROBERT G. KEANE
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ABSTRACT“Seakeeping … is the ability of our ships to go to sea, and Successfully and safely execute their missions despite adverse environmental factors.”— VAdm. R.E. Adamson. USNIn June 1975, VAdm. R.E. Adamson, USN, then Commander Naval Surface Forces, U.S. Atlantic Fleet, addressed the participants of the Seakeeping Workshop [1] and established what
EDWARD N. COMSTOCK, ROBERT G. KEANE
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Marine Technology and SNAME News, 1966
This paper attempts to apply presently available knowledge of ship model behavior in regular waves to the prediction of trends of ship performance in realistic irregular wave patterns. Performance is studied in the terms of tendency to ship water forward and to slam, and of magnitude of heaving accelerations.
Norman Hamlin, Roger Compton
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This paper attempts to apply presently available knowledge of ship model behavior in regular waves to the prediction of trends of ship performance in realistic irregular wave patterns. Performance is studied in the terms of tendency to ship water forward and to slam, and of magnitude of heaving accelerations.
Norman Hamlin, Roger Compton
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2020
On stability we have two main subjects to address in this chapter; that of displacement vessel stability as affected by the presence of a thin air layer at the keel; and the stability of air cavity planing craft. An air cavity planing craft requires consideration of both stability at rest in displacement mode and when travelling at design speed when ...
Gennadiy Alexeevitch Pavlov +3 more
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On stability we have two main subjects to address in this chapter; that of displacement vessel stability as affected by the presence of a thin air layer at the keel; and the stability of air cavity planing craft. An air cavity planing craft requires consideration of both stability at rest in displacement mode and when travelling at design speed when ...
Gennadiy Alexeevitch Pavlov +3 more
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Seakeeping and Manoeuvrability
2009WIG seakeeping and manoeuvrability includes the following topics: Longitudinal and transverse motions travelling over waves, including heaving, rolling, and pitching displacement and accelerations.
Liang Yun, Alan Bliault, Johnny Doo
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Application of Seakeeping Analysis
Marine Technology and SNAME News, 1978The paper gives a brief description of modern seakeeping analysis and discusses its application to problems encountered in engineering practice. The authors' experience with the computer program SCORES, for prediction, of ship motion responses, is reviewed, and examples of its application to typical problems are given.
Bruce L. Hutchison, J. Thomas Bringloe
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Fast accurate seakeeping predictions
Ship Technology Research, 2020Accurate predictions of ship motions and loads in a steep seaway require to include contributions depending non-linearly on wave amplitude. CFD methods do that routinely, but they require very high computing effort. Previous potential methods neglect either all or at least some nonlinear effects.
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Rankine Source Method for Seakeeping Predictions
Volume 4: Offshore Geotechnics; Ronald W. Yeung Honoring Symposium on Offshore and Ship Hydrodynamics, 2012Model tests are usually used for the traditional seakeeping predictions (transfer functions of ship motions and loads in regular waves). Experience shows that numerical solution of Reynolds-averaged Navier-Stokes equations (RANSE) can provide accurate results for this task, however, such computations require too much computational time for the required
Söding, Heinrich +3 more
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ON THE DEVELOPMENT OF SEAKEEPING CRITERIA
Naval Engineers Journal, 1992ABSTRACTIn order to determine the effects of ship motion on operational performance, quantitative seakeeping criteria are required. In this paper, we propose that seakeeping criteria should be presented in terms of limits on the incidence of whatever degrading event is determined to curtail the operation of interest, rather than limits on the ...
ROSS GRAHAM +2 more
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