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IJME 552

Paper Title: Operational Behaviour of an Offshore Multipurpose Support Vessel In The Eastern Mediterranean Sea

 

Authors

Y Garbatov, Centre for Marine Technology and Engineering (CENTEC), Instituto Superior Técnico, University of Lisbon, Portugal

N Almany, Centre for Marine Technology and Engineering (CENTEC), Instituto Superior Técnico, University of Lisbon, Portugal

M Tekgoz, Centre for Marine Technology and Engineering (CENTEC), Instituto Superior Técnico, University of Lisbon, Portugal

Summary  

The objective of this work is to analyse the operational behaviour of an offshore multipurpose support vessel designed to operate in the Eastern Mediterranean Sea. First, the seakeeping analysis is performed in a regular wave condition for different heading angles estimating heave and pitch motions through the strip theory. After that, the effects of the vertical acceleration on the bow, occurrence of slamming or hydrodynamic impact of the hull on the surface of the water; wetted deck, occurrence or invasion of water on the deck of the vessel and propeller emersion, motion sickness and wave-induced additional resistance are analysed. The present analysis is extended in an irregular sea condition, and the estimated seakeeping criteria are compared to the acceptable levels. In defining the most suitable operational mode of the offshore support vessels, multi-criteria decision techniques and probabilistic approach are employed to perform an adequate evaluation of the seakeeping performance accounting for different hazardous events through the service life.

 

Reference

Transactions RINA, Vol 161, Part A3, International Journal Maritime Engineering, Jul - Sep 2019 

DOI Number

DOI No: 10.3940/rina.ijme.2019.a3.552

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