University Of Tasmania

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Measurements of global and local effects of wave impact on a fixed platform deck

journal contribution
posted on 2023-05-18, 22:34 authored by Nagi AbdussamieNagi Abdussamie, Roberto Ojeda RabanalRoberto Ojeda Rabanal, Thomas, G, Amin, W
This article describes a series of model tests conducted to examine extreme wave events associated with tropical cyclonic conditions and their impacts on an offshore deck structure. Extreme waves of a representative cyclonic sea state were examined in a towing tank within long-crested irregular wave trains. Experimental results presented include global forces and localised slamming pressures acting on a rigidly mounted box-shaped deck, which represents a simplified topside structure of a tension leg platform. The effect of static set-down on the still-water air gap was investigated by applying an equivalent reduction for the deck clearance. It was found that a small reduction of 20 mm (2.5 m full scale) in the original deck clearance can lead to a doubling of the magnitude of the horizontal force and the vertical upward-directed force components, as well as significantly increased slamming pressures in many locations on the deck underside.


Publication title

Journal of Engineering for the Maritime Environment (Proceedings of the Institution of Mechanical Engineers: Part M)








Australian Maritime College


Sage Publications Ltd

Place of publication

United Kingdom

Rights statement

Copyright IMechE 2016

Repository Status

  • Restricted

Socio-economic Objectives

Oil and gas exploration

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