![]() Finally, benefits of the suggested concept have been summarised and compared to the conventional car carrier design. On the global level, composite sandwich panels do not contribute to the hull girder bending, so longitudinal and racking strengths of the new structural concept have been evaluated using the complete full ship FEM model. For a predefined sandwich panel geometry and interaction with the supporting deck steel grillage, structural capability and compliance with the relevant Bureau Veritas (BV) rules of various feasible configurations were evaluated, whereby structural response was determined using the finite element method (FEM) on the local (panel) level. Various relevant aspects and results of the case study are undertaken with the aim to determine a feasible structural design of the lightweight, cost-effective and easily installable composite sandwich panels intended to carry vehicles loaded on fixed decks. a combination of steel deck grillage and composite sandwich panels. ![]() To increase deadweight and reduce structural mass, vertical centre of gravity and fuel consumptions, three upper fixed vehicles decks have been designed as a hybrid concept, i.e. The paper presents the main structural aspects of the innovative car carrier being designed and built by the Uljanik Shipyard as a Newbuilding 513-514. This paper discusses and highlights basic challenges in the structural design and analysis of the ‘open type’ livestock carriers, using ULJANIK shipyard Newbuilding 526 as an example. ![]() Since relatively small number of vessels of this kind currently exists, their specific structural aspects are poorly documented in the literature. This kind of ship topology generates two main structural challenges in: (1) longitudinal strength due to partially effective participation of the superstructure in global hull girder bending and (2) transverse/racking strength due to absence of transverse bulkheads in the superstructure. The height of the superstructure is approximately equal to the height of the lower hull and the influence of hull-superstructure interaction on longitudinal strength is very important and should be taken into consideration during determination of the structural scantlings in very early design phase. ‘Open type’ livestock carriers are multi-deck ships characterised by the large openings in the superstructure side shell and with the absence of transverse and longitudinal bulkheads in the superstructure.
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