Finite element local analysis of wave slamming on offshore structure

• Autorzy: Żyliński B.
• Języki publikacji: EN

Abstrakty

EN

Offshore platforms are exposed to waves slamming event. Waves hitting the columns with a high velocity are in many cases the design criteria for column structure. This paper focuses on the analysis of wave slamming on floating platform column. Significant for wave slamming pressure is load history, which is usually based on model test. Wave slamming loads were defined on all four walls of column to assess the worst place. For south wall of column three positions exposed to slamming loads between elevation 21.000 (SWL) and elevation 35.500 were checked. Dynamic analysis has been performed with nonlinear FEM program ABAQUS /explicit. The steel was modeled as an elastic-plastic material with isotropic hardening.

Słowa kluczowe

EN

explicit analysis; FEM; offshore structures; wave slamming

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2009
• Tom: nr 1
• Strony: 8--12
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Żyliński B.

• Division of Applied Mechanics West Pomeranian University of Technology in Szczecin Al. Piastów 41 71-065 Szczecin, POLAND e-mail:,

Bibliografia

• 1. Morison J. R., O’Brien M. P., Johnson J. W., Schaaf S. A.: The forces exerted by surface waves on piles. Journal of Petroleum Technology, Petroleum Transactions, AIME 189, 1950
• 2. Chakrabarti S. K., Kriebel D., Berek E. P.: Forces on single pile caisson in breaking waves and current. Applied Ocean Research 19, 1997
• 3. Chan E. S, Cheong H. F., Tan B. C.: Laboratory study of plunging wave impacts on vertical cylinders. Coastal Engineering 25, 1995
• 4. von Karman T.: The impact on seaplane floats during landing. National Advisory Committee for Aeronautics. TechnicalNote, vol. 321, 1929
• 5. Goda Y.: Wave forces on a vertical circular cylinder: Experiments and a proposed method of wave force computation. Report No. 8, Port and Harbour Technical Research Institute, 1964
• 6. Wienke J., Oumeraci H.: Breaking Wave Impact Force on a Vertical and Inclined Slender Pile – Theoretical and Largescale Model Investigations. Journ. Coastal Engineering, Vol. 52, 2005
• 7. Cortel C., Grilli S. T.: Numerical Modeling of Extreme Wave Slamming on Cylindrical Offshore Support Structures. Proceedings of the Sixteenth (2006) International Offshore and Polar Engineering Conference San Francisco, California, USA, May 28-June 2, 2006.
• 8. Kirkgoz M. S.: Breaking Wave impact on vertical and sloping coastal structures. Ocean Eng., Vol. 22, No. 1, 1995
• 9. Recommended Practice DNV-RP-C205, April 2007 Environmental conditions and environmental loads
• 10. Metocean Design Basisis - C097-GJO-Z-IP-0018, rev.5
• 11. Design of Steel Structures – NORSOK N-004, Rev.2
• 12. Abaqus inc., Abaqus Analysis user Manuals, Providence. USA.