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

Abdussamie, N; Ojeda, R; Thomas, G; Amin, W; (2017) Measurements of global and local effects of wave impact on a fixed platform deck. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment , 231 (1) pp. 212-233. 10.1177/1475090216636410. Green open access

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Abstract

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.

Type: Article
Title: Measurements of global and local effects of wave impact on a fixed platform deck
Open access status: An open access version is available from UCL Discovery
DOI: 10.1177/1475090216636410
Publisher version: https://doi.org/10.1177/1475090216636410
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Science & Technology, Technology, Engineering, Marine, Engineering, Tropical cyclones, offshore platforms, wave-in-deck impact loads, Splash Zone
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1551565
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