BOOTE , Dario

In the early stage of ship design a first choice of the main dimensions can be performed utilizing several methodologies available in literature. A further optimization process is then necessary and, in doing so, useful tools are furnished by standard series and data bases for the prediction of performances in calm sea. Such a philosophy may...

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In this paper the structural optimization of a 60 meters megayacht is presented, performed by LBR-5 code, developed by the University of Liege. LBR-5 is an optimization tool specifically designed for structures composed by stiffened plates and stiffened cylindrical shells. The optimal solution is reached through an optimization algorithm based...

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The direct scantling of reinforced plates can be performed by simplified grillage theory or by FEM codes. The first approach gives satisfactory results and better matches Classification Society Rules. The only problem is represented by the determination of beam geometry which implies the determination of the shell portion cooperating with...

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ABSTRACT: A joint research between AZIMUT Shipyards and the Dipartimento di Ingegneria Navale of the University of Genova (DINAV) has been issued in 2004 to assess in detail the influence of Classification Society Rules on GRP yacht design. Particular emphasys has been devoted to the definition of mechanical properties of composite materials...

One of the most frequent damage cause for bulk carrier ships is represented by high stress concentrations occurring in deck plating close to hatch corners in way of coaming stay. In this area many fractures are found during surveys which are generated mainly by three types of problems: • stress concentration in correspondence of deck large...

The paper refers to an unconventional passenger vessel which matches hydrofoil and SWATH principles in order to achieve high transfer speed, low environmental impact and reduced wave washing phenomena. This innovative, hybrid vessel, called ENVIROALISWATH, should be able to provide high performances, manoeuvrability and controllability typical...