On the Impact of the Operational Profile on the Ideal Design of a Diving Support Offshore Construction Vessel

摘要

Simplified technical and economical analysis of a total of 12 different ship designs has been performed and compared with operational profiles of typical North Sea Diving and Construction vessels. Evaluation of what impact changes to the operational profile has on the best-suited vessel for the operation has also been performed. The paper focuses on optimizing the design to achieve a maximum of days in operation compared with the cost of each working day. B : beam; BM : distance from center of buoyancy to metacenter; C_b : block coefficient; D : depth of hull; DP : dynamic positioning; ekW : electric kW; ERN : Environmental Regulatory Number; F_n : Froude Number; GM_T : transversal metacentric height; Hs : significant wave height; IMR : inspection, maintenance, and repair; KB : distance from keel to center of buoyancy; KG_(Max) : maximum vertical center of gravity from keel; Lpp : length between perpendiculars; Loa : length overall; nm : nautical miles; OBSROV : observation class ROV; p.a. : per year; T_(Design) : design draft; Te : metric tonne; V_(Design) : design speed; WOW : waiting on weather; WROV : work class ROV