Effect of Skirts on the Behavior of a Mono-Column Structure in Waves

Masetti, Isaias Quaresma; Costa, Ana Paula; Matter, Gerson Beraldo; Barreira, Rodrigo Augusto; Sphaier, Sergio H.

doi:10.1115/omae2007-29024

Cited by 4 publications

(2 citation statements)

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“…In the presence of a disk, the damping induced by the current doubled. Masetti et al [11] carried out experiments to study the influence of different skirts on the response of monocolumn floating production structure and the influence of varying the external diameter along the vertical axis. Sphaier et al [12] carried out a series of tests on a model of a monocolumn platform with a moon pool to determine the optimal entrance area at the bottom of the moon pool for minimizing vertical motion in waves.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic response of a non-ship-shaped FPSO vessel with damping plates

Vijayalakshmi

Panneerselvam

2012

J Mar Sci Technol

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Experimental and numerical hydrodynamic investigations were carried out on a 1:45 scale model of a novel non-ship-shaped floating, production, storage, and offloading (FPSO) vessel that has been designed for use in the icy waters of the Arctic as well as the severe sea states of the North Sea. This FPSO vessel has a turret mooring system that is disconnectable during emergencies and inclement weather conditions. Experiments were conducted on a 1:45 scale model of the FPSO with damping plates consisting of skirt plates and different sizes of keel plates in order to study their influence on the response of the vessel. A numerical study of the scale model was carried out using the Wave Analysis at Massachusetts Institute of Technology code, and the results provided by it were compared with those obtained from model tests in the wave basin.

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Section: Introductionmentioning

confidence: 99%

Hydrodynamic response of a non-ship-shaped FPSO vessel with damping plates

Vijayalakshmi

Panneerselvam

2012

J Mar Sci Technol

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“…Thiagarajan et al [9] carried out numerical simulations and model testing to identify the influence of a heave plate on the heave response of the spar. Masetti et al [7] carried out experiments to study the influence of different skirts on the response of monocolumn floating production structure and the influence of variation of the external diameter along the vertical axis. Torres et al [11] published works by changing the internal geometry of the moonpool.…”

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confidence: 99%

Parametric Study on the Hydrodynamic Response of Dsi Polygonal Shaped Fpso

Vijayalakshmi¹,

Ramalingam²,

Srinivasan³

et al. 2017

Brod

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SummaryIn the present paper, numerical investigations was carried out on a 1:45 scaled model of DSI nine sided polygonal non-ship shaped FPSO, by varying different parameters of the model. Parameters such as inlet pipe radius, and moonpool radius was considered for the study and the variation of the RAO in surge and heave were plotted and reported in the present paper. Previously, experiment were conducted by the author on a 1:45 scale DSI nine sided polygonal non-ship shaped FPSO model with three different mooring arrangements viz. 100% turret mooring, 50% vessel and 50% turret mooring, and 100% vessel mooring. Author also conducted experiments on the model with different sizes of damping plates attached at the keel and skirt portion of the model to study its influence on the responses of the vessel and comparison was made with numerical result obtained from Wave analysis, MIT (WAMIT) software. Numerical study was carried out in WAMIT on the scaled model and the results were compared with those obtained from model tests in the wave basin.

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Conceptual Design of Monocolumn Production and Storage With Dry Tree Capability

Gonçalves

Matsumoto

Malta

et al. 2010

Journal of Offshore Mechanics and Arctic Engineering

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A new concept and a preliminary study for a monocolumn floating unit are introduced, aimed at exploring and producing oil in ultradeep waters. This platform, which combines two relevant features—great oil storage capacity and dry tree production capability—comprises two bodies with relatively independent heave motions between them. A parametric model is used to define the main design characteristics of the floating units. A set of design alternatives is generated using this procedure. These solutions are evaluated in terms of stability requirements and dynamic response. A mathematical model is developed to estimate the first order heave and pitch motions of the platform. Experimental tests are carried out in order to calibrate this model. The response of each body alone is estimated numerically using the WAMIT® code. This paper also includes a preliminary study on the platform mooring system and appendages. The study of the heave plates presents the gain, in terms of decreasing the motions, achieved by the introduction of the appropriate appendages to the platform.

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Effect of Skirts on the Behavior of a Mono-Column Structure in Waves

Cited by 4 publications

References 0 publications

Hydrodynamic response of a non-ship-shaped FPSO vessel with damping plates

Hydrodynamic response of a non-ship-shaped FPSO vessel with damping plates

Parametric Study on the Hydrodynamic Response of Dsi Polygonal Shaped Fpso

Conceptual Design of Monocolumn Production and Storage With Dry Tree Capability

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