Results 161 to 170 of about 5,660 (193)

Application of Seakeeping Analysis

Marine Technology and SNAME News, 1978
The 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, 2020
Accurate 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, 2012
Model 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, Graefe, Alexander von, el Moctar, Bettar Ould, Shigunov, Vladimir   +3 more
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ON THE DEVELOPMENT OF SEAKEEPING CRITERIA

Naval Engineers Journal, 1992
ABSTRACTIn 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, A. ERICH BAITIS, WILLIAM G. MEYERS   +2 more
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Vessels' Seakeeping

2006
Udžbenik Pomorstvenost plovnih objekata nastao je u želji da se teorija pomorstvenosti približi studentima brodogradnje Tehničkog fakulteta Sveučilišta u Rijeci. Sadržaj knjige planiran je tako da u potpunosti obuhvati program predmeta Pomorstvenost plovnih objekata, a pored toga omogućuje proširenje znanja iz područja pomorstvenosti i dinamike plovnih
Čorić, Većeslav, Prpić-Oršić, Jasna   +1 more
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Variation of parameters determining seakeeping

International Shipbuilding Progress, 1977
With the computerprogram “Trial” calculations have been carried out to determine the seakeeping qualities in head waves of systematically varied shipforms. These ships were derived from the well-known “Todd-60” series. The following varied parameters show in succession of importance the influence on ship motions etc.: ship-length, speed, forebody ...
Beukelman, W., Huijser, A.
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Combatant Seakeeping Sensitivity Study

2001
Abstract : This study examines the sensitivity of seakeeping predictions for three different ship classes. The sensitivity parameters were displacement, KG and trim The three ships hulls were the CG-47, and DDG-51 Flights I and IIA. The results consist of the percent difference from the median condition for every combination of parameters.
Timothy C. Smith, Darren Sheinberg
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Seakeeping correlation studies

2003
The following paper describes the results of a study investigating these correlations. One of the more noteworthy conclusions of the study is the clear need for an adequate description of the seaway in which the sea trials were performed. In particular, sea trials are generally performed not too far from land where sea spectra are quite likely to be ...
Cumming, D., Bass, D. W., Hopkins, D., Bose, N., Carroll, B.   +4 more
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Evaluation of Seakeeping Predictions

2013
Test cases related to seakeeping are studied in this chapter including heave and pitch with or without surge motion in regular head waves for KVLCC2 and KCS and wave diffraction and roll-decay with forward speed for DTMB 5415. For seakeeping, the total average error is E = 23 %D, comparable to the average error for previous seakeeping predictions.
Frederick Stern, Hamid Sadat-Hosseini, Maysam Mousaviraad, Shanti Bhushan   +3 more
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Numerical Methods for Seakeeping Problems

Ship Technology Research, 2021
el Moctar, Bettar Ould, Schellin, Thomas E., Söding, Heinrich   +2 more
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