... social responsibility climate change forward speed numerical calculation vertical acceleration wave direction beam wave statistical analysis united states government sustainable development irregular wave head wave rao acceleration response motion time sery experimental method spectral...

... and the URANS (unsteady Reynolds-averaged Navier–Stokes) simulations are conducted to predict the roll motion of ONR Tumblehome with the scale ratio 1:40.53 in irregular beam waves without forward speed. The simulation results are compared with EFD (experimental fluid dynamics) data provided by China Ship...

... method were compared. marine transportation wave direction wave spectrum head wave experiment freight & logistics services ship motion response fishing vessel significant wave height wave frequency motion response irregular wave spectrum frequency beam wave natural frequency...

... offshore hook-up operations, and reductions of schedule interfaces make the floatover method a much safer and more cost-efficient method than the lifting method (Gros and Lescurat, 1982; ONeill et al., 2000; Seij and Groot, 2007; Wang et al., 2010). floatover installation beam wave load transfer...

...-by-side system is under oblique or beam waves, the relative roll between the two bodies is intensified and the probability of collision is increased. Therefore, it is of great importance to predict the relative motion accurately in order to ensure the safety of engineering operation. In the theoretical...

... largely in head wave. The twin-barge motions were quite difference in both amplitude and phase in beam waves, which was caused by the shield effect and the elastic connection. The lash line experienced large forces in beam waves and should be paid attentions. The experimental results will provide valuable...

.... Three cosine waves including head waves, beam waves and oblique waves are simulated by boundary input method respectively and the free surface is captured by Volume Of Fluid (VOF) method. The RANS equation is solved on full hexahedral unstructured grids using moving grids technique that is rigid...

.... different separation distance fpso roll response motion response floating production system investigation relative size relative angle barge wave potential beam wave interaction subsea system different relative angle lee side arrangement separation distance heave response sway response...

... ABSTRACT: Purse seine fishing vessel almost has more serious roll motions in rough sea due to its transverse lateral hauling feature. In this paper, we focus on a fishing vessel in beam waves and make a comprehensive stability analysis by using the nonlinear dynamic theory, including series...

.... As a conclusion, the agreement between the experimental results and the numerical results is good. The strain of the transverse beam in the beam waves has a high peak, which should be lowered for the realistic design of this concept. It is found that drift forces are not significant except for the frequency...

...). This is particularly evident by considering the IMO Weather Criterion (see IMO Res. A.749 and the underlying theory, Yamagata, 1959). Of course, these approaches cannot describe the last stages of motion leading to capsizing, but it is common opinion that capsize in beam waves is always due to the concurrent action...

... of a time domain simulation method of rolling motion of a Ro- Ro passenger ship with flooded water on vehicle deck expressed by 2- dimensional lump mass concept. Model experiments with different amounts of water on the deck were carried out to confirm effectiveness of the method in regular beam waves...

... ABSTRACT The roll motion of a trimaran ship composed of three Wigley hulls in beam waves has been studied on an experimental basis. Two different configurations as regards hull separation were combined with two longitudinal positions of outriggers. A mathematical model, taking into account...

... ABSTRACT: The roll motion in beam waves of a RoRo with a list exhibits a dependence of roll amplitude on static bias angle. In this paper the problem has been examined with the aim of finding an explanation in terms of mathematical modelling of roll motion. It results that coupling and other...

... method to obtain the wave loads, without solving the diffraction problem itself for each wave direction, would be welcome. As a first attempt for beam waves only, this paper presents a very quick, simple and accurate method to obtain the wave loads from the potential coefficients and the radiated wave...