A comparative evaluation of hydrodynamic loads for a series of river chemical tankers converted into river – sea series

One of the main problems to be taken into account is availability a reliable amount information during preliminary design stages. The present paper focused on analysis results obtained for several versions developed based initial version river chemical tanker, using so-called jumboisation which technique in shipbuilding, consisting enlarging ship by adding an entire section it. Moreover, breadth prototype was also modified order evaluate effects all these modifications performances different variants, i.e., hydrostatics, hydrodynamic resistances, motorization solutions (main engine selection), EEDI (Energy Efficiency Design Index), etc. Originally, investigations have been carried out having as tanker about 4600 dwt, obtaining 7 additional versions. previous allow us develop synthetic and coherent procedure can provide simplified manner foresee are implications impact owner’s new requirements proposed ship. Starting from results, concentrated influences when original converted river-sea one, expected being variation maximum values bending moments shear forces acting girder. extended calculations resistance lead higher then, engines selected significant values. Consequently, due quantified compared case becomes possible. evaluations appropriate software, provided Bureau Veritas.