Results 1 to 10 of about 276 (161)

On the Structural Design of Bilge Keels

Volume 1: Offshore Technology; Offshore Wind Energy; Ocean Research Technology; LNG Specialty Symposium, 2006
The reduction of response motion experienced by monohull marine structures through energy dissipation performed by passive stabilisers such as bilge keels is an inexpensive system, when compared to the active motion reduction systems such as active stabilisers or active stabilising fluid tanks.
Anto´nio F. Mateus, Joel A. Witz, Paulo P. Silva, Carlos A. Pereira   +3 more
openaire   +1 more source

Bilge Keels with Discontinuous End Plate

Journal of Hydronautics, 1978
Bilge keels are effective devices to reduce rolling of ships. Normally, they can reduce rolling amplitude by about 20 to 50%. The initial cost of the bilge keel is minor, and the construction is simple. Many theoretical as well as experimental results regarding configuration, performance, and construction methods of bilge keels have been published ...
C.Y. Liu, K. T. Chua, K.O. Low
openaire   +1 more source

On the Roll Damping of an FPSO with Riser Balcony and Bilge Keels

William Froude Conference: Advances in Theoretical and Applied Hydrodynamics - Past And Future, 2010
Although the topic of roll damping of vessels at sea is already brought to the attention of naval architects by Froude more than 100 years ago, the physics of it remain intriguing, even today. An accurate prediction of the motions of offshore structures in harsh environments, designed for 25 years continuous operation, is the topic of this paper. Model
R van ’t Veer, F Fathi
openaire   +1 more source

Effect of bilge keels on maneuverability of a fine ship

Journal of Marine Science and Technology, 2017
This paper discusses the effect of bilge keels on maneuverability of a fine ship experimentally and theoretically. To capture the effect, first, free-running model tests were conducted using a KCS container ship model with detachable bilge keels. We found that bilge keels improve the turning performance and enlarge overshoot angles in zig-zag maneuvers,
H. Yasukawa, N. Hirata, Y. Yamazaki
openaire   +1 more source

Roll Damping Decay of a FPSO With Bilge Keel

Volume 7: CFD and VIV, 2013
The roll damping decay is investigated for a Floating Production Storage and Offloanding (FPSO). For this purpose, a roll decay test of FPSO is simulated by means of the numerical solution of the incompressible two-dimensional Navier-Stokes equations.
Gustavo O. Guarniz Avalos, Juan B. V. Wanderley, Antonio C. Fernandes   +2 more
openaire   +1 more source

Hydrodynamic forces on a rolling barge with bilge keels

Applied Ocean Research, 2010
Analysis of hydrodynamic forces on a rolling barge fitted with bilge keels involves solving the Navier-Stokes equations. Presented herein is a direct method for solving the Navier-Stokes equations that makes use of a finite volume method in a moving unstructured grid.
Bangun, E.P., Wang, C.M., Utsunomiya, T.
openaire   +4 more sources

Roll damping decay of a FPSO with bilge keel

Ocean Engineering, 2014
The roll damping decay is investigated for a Floating Production Storage and Offloading (FPSO). For this purpose, a roll decay test of a middle section of FPSO with bilge keel is simulated by means of the numerical solution of the incompressible two-dimensional Navier–Stokes equations.
Gustavo O.G. Avalos, Juan B.V. Wanderley, Antonio C. Fernandes, Allan C. Oliveira   +3 more
openaire   +1 more source

Hydrodynamics of an Installation Barge With Bilge Keels and Stinger

29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 1, 2010
Multipurpose barges are used for accommodations, maintenance, equipment transport and installation and pipelay. For all these operations, the correct understanding of the motions of the vessel is essential for safety and to increase the uptime in the desired region. The motions of barges are well evaluated by the use of potential theory, but due to the
Marcos Cueva, Alexandre S. Hansen, Joa¯o Luis B. Silva, Fernando Faria, Andre Morato   +4 more
openaire   +1 more source

Analysis of the Physics of Bilge Keel Vortex Generation

Volume 4: Offshore Geotechnics; Ronald W. Yeung Honoring Symposium on Offshore and Ship Hydrodynamics, 2012
A 2D forced roll oscillation experiment was performed to examine and characterize the physics of vortex generation from ship bilge keels. Measurements included ship model motions, normal force on the bilge keels, and flow field visualizations using Particle Image Velocimetry (PIV).
Lisa Minnick, Christopher Bassler, Scott Percival   +2 more
openaire   +1 more source

Oscillating Flow About Two and Three-Dimensional Bilge Keels

Journal of Offshore Mechanics and Arctic Engineering, 1996
Abstract The paper describes an experimental investigation of the damping provided by bilge keels in an oscillating flow (in a large U-shaped water tunnel). Rectangular and square flat plates were placed adjacent to a solid boundary (with no gap) in order to simulate flow about bilge keels.
Sarpkaya, T., O'Keefe, J.L.
openaire   +2 more sources