Semi-submersible design – A new generation of offshore accommodation vessels. (15th January 2019)

• Record Type: Journal Article
• Authors: MacGregor, James; Mayekar, Savan; Watson, Duncan
• Is Part Of: Ocean engineering. Volume 172(2019)
• Page Start: 759
• Page End: 787
• Publication Date: 2019-01-15
• Subjects: Semi-submersible -- Floatel -- Naval Architecture -- Newbuild -- Accommodation -- Weight; Ocean engineering -- Periodicals; Ocean engineering; Periodicals; 620.4162
• DOI: 10.1016/j.oceaneng.2018.11.053
• Languages: English
• ISSNs: 0029-8018

Abstract

Abstract: This paper explores the naval architectural design considerations involved in a new fleet of offshore accommodation semi-submersibles constructed by different owners in the period from 2008 to 2018. The principal design features are compared with data from the previous generation of floatels constructed in the 1970s/80s. All fourteen vessels are compared at a high level, and in some areas detailed data from six of the new vessels (three different design classes) is analysed. Information is provided on subjects such as weight estimation and weight control, motions and station-keeping behaviour, resistance and propulsion. Key arrangement considerations are discussed together with practical design data on internal volume and deck area.