RIZZUTO , Enrico

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The work reviews the state of the art of the use of bonded joints in shipbuilding, and describes motivations, features and results of an experimental research program aimed at characterizing actual performances attainable in bonded joints by use of several adhesives, currently available on the market, applied in realistic conditions. Joints...

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This technical report contains the results of the experimental characterisation of the dynamic behaviour of Sandwich GRP panels

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The longitudinal strength of the hull girder is traditionally verified by linear superposition of still water (static) loads to wave induced (dynamic) loads. Belonging to the former class, gravitational effects are considered always as directed along the plane of symmetry of the ship, as the static equilibrium position corresponds to the ship...

In the present work the calibration is presented of a partial safety factor format for the verification of the hull girder in bending conditions. The calibration is performed by means of a second level reliability model, based on a FORM/SORM procedure. All the steps of the calibration process are described, including: choice of the failure...

A growing attention has been devoted recently to acoustical problems on board of vessels, particularly in connection with the construction of an increasing number of high standard cruise vessels and pleasure crafts. Severe specifications on maximum noise levels on board, in particular in working, living, and resting areas are now common,...

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The study reports the numerical prediction of a fluid-loaded sandwich panel submitted to a transversal point force excitation

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A growing attention has been devoted to acoustical problems on board of ships, particularly in connection with the recent, extensive production of high standard cruise vessels. Severe specifications on the maximum noise levels in the various areas of the ship and in particular in the living and working areas are now common. This brought the...

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The paper presents a numerical procedure for the simulation of a marine propulsion plant in transient conditions: the model describes in detail the various elements of the propulsion system and the interactions existing between each of them. The thermodynamic behaviour of the main engine as well as of the turbocharger group is modelled,...

The loads due to internal fluid motions are believed to be cause of severe damages occurring on the walls of tanks on board. Even if a general description of sloshing loads in terms of dynamic and impact pressures on the walls is available, a quantification of such pressures in large scale is still difficult. This paper reports the results of...

The problem of the dynamic characterisation of a visco-elastic material is addressed, with reference to products and applications that are typical of cabin floors on board of ships. The phenomenon under consideration is the reduction in the airborne noise radiation in a cabin achieved by means of a visco-elastic layer interposed between...

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One of the key points for the success in the construction of cruise ships is the enhancement of high standards for passengers comfort on board, especially in the living and resting areas. For this reason, one of the fields on which research in this sector is focused on is the reduction of airborne and structure-borne noise transmitted inside...