Publications

Garbatov, Y., Almany, N. and Tekgoz, M. (2019), “Operational behaviour of an offshore multipurpose support vessel in the Eastern Mediterranean Sea”, International Journal of Maritime Engineering, Vol. 161(Part A3), pp. A-303 - A-311

The objective of this work is to analysethe 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, ocurrence of slamming or hydrodynamic impact of the hull on the survace fo the water; wetted deck, occurrence or invation 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 evaltion of the seakeeping performance accounting for different hazardous events through the service life.

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