Alternative hybrid lightweight ship hull structural design

Cost, Energy Efficiency and Carbon Footprint Analysis of Hybrid Light-Weight Bulk Carrier

“…The methodology used in Ref. [19] was employed here. A hybrid light-weight ship bulk carrier structural design was constructed based on the integration of aluminium honeycomb sandwich structures as a replacement for the conventional steel inner side shell of the cargo hold of a bulk carrier.…”

“…The {Light − weight} was defined using a regression equation based on a statistical analysis of existing ships [37] adapted to the current study, accounting for the hybrid design solution [19] involving AHS. The newly introduced relationship is:…”

“…A double-hull bulk carrier with a length of 224.50 m, a beam of 40.70 m, a depth of 20.00 m, a draft of 14.60 m, a block coefficient of 0.85 and a ship speed of 13.00 knots was designed [19] as a hybrid structure, and the midship section can be seen in Figure 1. Standard shipbuilding steels were used to construct the midship section from 235 to 390 MPa of yield strength.…”

“…AHS of aluminium alloy 5251-T3 replaced the steel plate of the bulk carrier's inner side shell's cargo hull, creating a hybrid structure together with designed supporting longitudinal stiffer reinforcements [19]. The cost of face-sheet material per unit volume was assumed to be 200 €/m 3 , and the cost of honeycomb core material per unit volume was 20 €/m 3 .…”

“…The main objective of this study, which is aligned with the mentioned issues, was to evaluate the potential benefits arising from the integration of innovative light-weight structures in ship design. In the present work, a hybrid light-weight ship structural design solution, where aluminium honeycomb sandwich panels were used to replace the steel plates of the inner side shell, was adopted for a bulk carrier, thus creating a hybrid structure and supporting longitudinal stiffer reinforcements [19].…”