Rogue wave impact on a semi-submersible offshore platform

Murray Rudman, Justin Leontini, Paul Cleary, Matthew Sinnott, Mahesh Prakash

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8 Citations (Scopus)


Full three-dimensional simulation of the impact of a rogue wave on a semi-submersible platform is undertaken using the Smoothed Particle Hydrodynamics (SPH) technique. Two different mooring configurations are considered: A Tension Leg Platform (TLP) system and a Taut Spread Mooring (TSM) system. It is seen that for a wave impact normal to the platform side, the heave and surge responses of the platform are significantly different for the two mooring systems. The TLP system undergoes large surge but comparatively smaller heave motions than the TSM system. The degree of pitch is very similar. The total tension in the mooring cables is approximately four times higher in the TSM system and exceeds the strength of the cables used in the simulation. SPH is seen to be an attractive alternative to standard methods for simulating the coupled interaction of highly non-linear breaking waves and structural motion.

Original languageEnglish
Title of host publicationProceedings of the 27th International Conference on Offshore Mechanics and Arctic Engineering 2008, OMAE2008
Number of pages8
Publication statusPublished - 1 Dec 2008
EventInternational Conference on Ocean, Offshore and Arctic Engineering 2008 - Estoril, Portugal
Duration: 15 Jun 200820 Jun 2008
Conference number: 27th


ConferenceInternational Conference on Ocean, Offshore and Arctic Engineering 2008
Abbreviated titleOMAE 2008

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