Results 261 to 270 of about 1,000,731 (317)
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IFAC Proceedings Volumes, 1993
Abstract In this paper we describe an indirect approach to short-term prediction of the rolling motion of ships. A key assumption used in the development is that for short time periods, the spectral content of the motion is concentrated in narrow-bands.
J.M. Fernandes, C.E. de Souza
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Abstract In this paper we describe an indirect approach to short-term prediction of the rolling motion of ships. A key assumption used in the development is that for short time periods, the spectral content of the motion is concentrated in narrow-bands.
J.M. Fernandes, C.E. de Souza
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A semi-analytical high-order translating-pulsating source method for forward-speed ship motions
Ocean Engineering, 2019This paper presents a semi-analytical high-order translating and pulsating Green's function method for the hydrodynamic calculations of ships advancing in waves.
Yun-Tao Yang +3 more
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IEEE Transactions on Neural Networks and Learning Systems, 2020
As a type of indispensable oceanic transportation tools, ship-mounted crane systems are widely employed to transport cargoes and containers on vessels due to their extraordinary flexibility.
Tong Yang +3 more
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As a type of indispensable oceanic transportation tools, ship-mounted crane systems are widely employed to transport cargoes and containers on vessels due to their extraordinary flexibility.
Tong Yang +3 more
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Study on wave-induced motions of a turning ship in regular and long-crest irregular waves
, 2021A 6 degrees of freedom (DOF) maneuvering and seakeeping unified model is developed and validated for the accurate simulation of wave-induced motions of a turning ship (S175) in regular and long-crest irregular waves.
Li-Wei Yu, Shuqing Wang, N. Ma
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Effect of ship motion on ship airwake aerodynamics
2020The effects of ship motion on the flow field over the deck of the ONR Tumblehome geometry were investigated experimentally. Characterization of the flow field is relevant in the context of safe aircraft operation in the wake region and to provide an accurate prediction of aircraft air-loads in simulators for pilots, and to provide a validation data set
Austin Krebill +5 more
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Rankine source time domain method for nonlinear ship motions in steep oblique waves
Ships and Offshore Structures, 2018This article presents a weakly nonlinear time domain Rankine source boundary element method to calculate wave-induced ship motions. Radiation forces were calculated using convolution integrals, whereas Froude–Krylov and hydrostatic forces were obtained ...
Malte Riesner +2 more
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Resistance of a Ship Undergoing Oscillatory Motion
Journal of Ship Research, 2010In this paper, we describe extensions to the research of Doctors et al. (Doctors, L. J., Day, A. H., and Clelland, D., 2008, Unsteady effects during resistance tests on a ship model in a towing tank, Journal of Ship Research, 52, 4, 263–273) and Day et al. (Day, A. H., Clelland, D., and Doctors, L.
Doctors, Lawrence J. +2 more
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The motion of a ship at sea and the consequent motion sickness amongst passengers
Ergonomics, 1986Measurements were made of the motion of a ship, and of the consequent seasickness experienced by passengers. Data are presented for 17 voyages of up to 6 hours duration, involving 4915 passengers. Vertical motion occurred up to 1·0 m s−2 r.m.s. and vomiting incidence of up to nearly 40% was encountered.
Lawther, A., Griffin, M.J.
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Ship motion modeling and simulation in Ship Handling Simulator
2012 International Conference on Audio, Language and Image Processing, 2012For 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 +4 more
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Limiting Ship Motions for Small Ships in Heavy Seas
Ocean Engineering, 1997Abstract 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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