Developing methodology for model tests of floating platforms in low-depth towing tank

• Autorzy: Dymarski C. , Dymarski P.

Identyfikatory

DOI

10.1016/j.acme.2015.07.003

• Języki publikacji: EN

Abstrakty

EN

The paper presents two different methods of physical modeling of semi-submersible platform mooring system for research in low depth towing tank. The tested model was made in the scale of 1:100 resembling the “Thunder Horse” platform moored in the Gulf of Mexico at a depth of 1920 m. Its mooring system consisted of 16 semi-taut mooring lines (chain-wire-chain) spaced star-shape and attached at the bottom to suction piles. The tests were performed in the towing tank of the Gdansk University of Technology (GUT). The tank depth is 1.5 m and which is about 13.5 times less than that required for typical model tests. This required the development and use of non-standard methods of mooring for the model, which was adapted to the technical conditions existing in the laboratory and material possibilities. Numerical calculations and characteristics of static displacement of the model as a function of the external horizontal load were carried out for both anchoring systems. These characteristics were scaled to the natural conditions and compared with the calculated characteristics of the reference platform. The second method of modeling proved to be much more accurate.

Słowa kluczowe

EN

semi-submersible platform; methods of modeling mooring system; model tests in the towing tank

PL

cumowanie; holowanie statków; konstrukcje morskie

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2016
• Tom: Vol. 16, no. 1
• Strony: 159--167
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Dymarski C.

• Gdansk University of Technology, G. Narutowicza Str. 11/12, 80-233 Gdansk, Poland

autor

Dymarski P.

• Gdansk University of Technology, G. Narutowicza Str. 11/12, 80-233 Gdansk, Poland

Bibliografia

• [1] A. Aubault, C.A. Cermelli, D.G. Roddier, Structural design of a semi-submersible platform with water-entrapment plates based on a time-domain hydrodynamic algorithm coupled with finite-elements, in: Proceedings of the Sixteenth (2006) International Offshore and Polar Engineering Conference, San Francisco, CA, USA, May 28–June 2, 2006.
• [2] B.C. Gerwick, Construction of Marine and Offshore Structures, CRC Press Taylor & Francis Group Boca Raton, London, New York, 2007.
• [3] B.J. Leira:, Recent structural design considerations related to floating production systems, The IES Journal Part A: Civil & Structural Engineering (January) (2010).
• [4] C. Dymarski, P. Dymarski, Analysis of floating drilling facilities and a choice of a reference platform and development of assumptions and initial concept anchoring system, Research Works of Faculty of Ocean Engineering and Ship Technology of Gdansk University of Technology (FOE&ST GUT) Nr 9/2012/PG.
• [5] C. Dymarski, P. Dymarski, Determination of the static characteristics of the anchoring system of the reference platform Thunder Horse, Research Works of FOE&ST GUT Nr 14/2013/PG.
• [6] H.D. Bea, A. Gregg, M. Hooks, B. Riordan, J. Russell, M. Williams, Conceptual Design of a Semi-Submersible Floating Oil and Gas Production System for Offshore Malaysia.
• [7] A.B.M.S. Islam, M. Jameel, S. Ahmad, M.Z. Jumaat, V.J. Kurian, Structural behaviour of fully coupled spar-mooring system under extreme wave loading, Journal of Civil Engineering and Management 19 (Suppl. 1) (2013) S69–S77.
• [8] M. Jameel, S. Ahmad, A.B.M.S. Islam, M.Z. Jumaat, Non-linear dynamic analysis of coupled spar platform, Journal of Civil Engineering and Management 19 (4) (2013) 476–491.
• [9] S. Chakrakarti:, Handbook of Offshore Engineering II, Offshore Structure Analysis, Inc., Plainfield, IL, USA, 2005.
• [10] S.K. Chakrakarti:, Offshore Structure Modeling, World Scientific, 1994.
• [11] Y. Abbas, V.J. Kurian, N. Abu Bakar, Experimental Study, Civil Engineering Department, Universiti Teknologi PETRONAS Bandar Seri Iskandar, 31750 Tronoh, Perak, Malaysia, 2009.
• [12] ‘‘Types of Offshore Oil and Gas Structures’’. NOAA Ocean Explorer: Expedition to the Deep Slope. National Oceanic and Atmospheric Administration (retrieved 23.05.10).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę