1,721,084 research outputs found
Sicurezza delle Navi e la loro gestione
No full textLa gestione dell’esercizio della nave; Incidenza della manutenzione sulla costruzione e sul progetto; Il punto di vista armatoriale e dei registri di classificazione sulla safety a bordo; Tipi di manutenzione sulle navi in esercizio; Importanza dei sistemi manutentivi nell’ISM code; Esempio della gestione nave in Grimaldi; Il manuale di istruzione al comandante: il ruolo attivo dell’ingegnere; Ottimizzazioni delle caricazioni delle navi ro-ro; Incidenza dell’equipaggio sulla gestione nave; Riflessi della manutenzione sulla safety ; Le ispezioni alla nave in esercizio; La sicurezza del lavoro a bordo delle navi; Sicurezza attiva e passiva antincendi
ALCUNE NOTE SULLA SICUREZZA STRUTTURALE DELLE NAVI BULK CARRIER: CONFRONTO TRA SEMPLICE E DOPPIO FASCIAME DEL FIANCO
No full text
ON THE PERFORMANCE ANALYSIS IN SHIP FIRE SAFETY DESIGN
No full textWith the ratification of IMO’s resolution MSC.99 (73) on 1st July 2002, in many classification societies, fire ship codes are shifting from prescriptive (rules in SOLAS) to performance-based (as long as an adequate level of safety is maintained) for technical, economic and social reasons. This change is made possible by progress in fire safety technologies, including the development of engineering tools that are required to implement performance codes. The performance-based design is a design activity that is based, on the analysis of a “phenomenon”, developed in case of fire event, and on the verification of adopted providences. The success of performance-based codes depends on the ability to establish performance criteria that will be verifiable and enforceable. The performance criteria should be such that designers can easily demonstrate, using engineering tools, that their designs meet them and that the classification societies can enforce them. This paper firstly presents and discusses the fire models for ships, deriving from those ones of buildings, which can be utilized to simulate the development of a fire event in a compartment or groups of compartments. Successively a study on the performance criteria, which can be currently used by fire protection engineers in designing fire safety in ships, is carried out. This includes deterministic and probabilistic design criteria as well as safety factors. The deterministic criteria relate mainly to life safety levels, fire growth and spread levels, fire exposure and structural performance. The probabilistic criteria focus on the incident severity and incident likelihood. Additionally, the inclusion of safety factors permits a conservative design and allows for a smaller margin of error due to uncertainty in the models and the input data. Finally, two examples demonstrate the practical applicability of the proposed performance criteria and their practical engineering relevance
Dimensionamento effettuato con le norme CE 94/25 e confronto attraverso il metodo degli elementi finiti
No full textValutazione dei coefficienti di sicurezza imposti dalla norma e confronto con il modello ad elementi finiti;
Ottimizzazione con un ciclo FEM;
Costi di progettazione strutturale delle imbarcazioni da diport
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