Results 271 to 280 of about 1,000,731 (317)

The Theory of Ship Motions

1979
Publisher Summary This chapter highlights that the oceangoing ships are designed to operate in a wave environment that is frequently uncomfortable and sometimes hostile. Unsteady motions and structural loading of the ship hull are two of the principal engineering problems that result.
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Propeller performance on a model ship in straight and steady drift motions from single blade loads and flow field measurements

, 2020
In the field of marine hydrodynamics, propeller operations in off-design conditions represent a challenging topic that has been increasingly attracting interest among industry and research institutions. Over the ship operating life, off-design conditions
F. Ortolani, A. Capone, G. Dubbioso, Francisco Alves Pereira, A. Maiocchi, F. di Felice   +5 more
semanticscholar   +1 more source

Ship Motions in Shallow Water

Offshore Technology Conference, 1976
ABSTRACT When operating large ships in water depths only slightly greater than the draft, as super tankers at near-shore terminals, it is necessary to know precisely how much clearance is required for safety. Recent developments in hydrodynamics are applied to determine the motions of a ship due to waves and current
Alan C. McClure, R. Ray Nachlinger
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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.
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Comparison of ship motion theories with experiments for a container ship

International Shipbuilding Progress, 1974
Two calculation methods by which the ship motions, shearing forces, etc. in regular waves can be predicted are compared. The first method is analog to the method introduced by Korvin-Kroukovsky and Jacobs, while the second method is analog to the recently developed methods.
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A Ship'S Motion and the Incidence of Seasickness

Military Medicine, 1953
S W, HANDFORD, T E, CONE, S C, GOVER
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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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A Method of Complicated Motion Ship Imaging

2023 IEEE/ACIS 23rd International Conference on Computer and Information Science (ICIS), 2023
Jinfu Du, Huajun Zhang 0002, Youjun Sun
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THE VALUE OF REDUCING SHIP MOTIONS

Naval Engineers Journal, 1985
ABSTRACTThe fighting effectiveness of surface warships is degraded in bad weather reducing the return on the capital invested in them. This paper offers a simple methodology linking degradation in a given sea state, the frequency of occurrence of various sea states and the cost of one day at sea. An example shows the cash return on improving seakeeping.
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A time optimal trajectory planning method for offshore cranes with ship roll motions

Journal of the Franklin Institute, 2022
He Chen, Ran Zhang, Weipeng Liu, Hai-Yong Chen   +3 more
semanticscholar   +1 more source