• Non ci sono risultati.

The first step of the work has referred to the definition and analysis of the maximum loads the catamaran is subjected to, during the most common racing configurations.

N/A
N/A
Info
Scarica
Protected

Academic year: 2021

Condividi "The first step of the work has referred to the definition and analysis of the maximum loads the catamaran is subjected to, during the most common racing configurations. "

Copied!
1
0
0

Caricamento.... (Visualizza il testo completo ora)

Scarica adesso ( 1 pagine )

Testo completo

(1)

III

Abstract

The object of this thesis is the structural analysis of an A-Class racing catamaran hull.

This type of boat is achieving great success since the A-Class regulations impose only few restrictions in its design.

The first step of the work has referred to the definition and analysis of the maximum loads the catamaran is subjected to, during the most common racing configurations.

Particularly the fluid dynamic and inertial forces, which induce rolling, pitching and yawning momentums, have been investigated and balanced.

The second step has consisted in the development of a finite element model to carry on a structural analysis in order to obtain the stresses magnitude and point out the most critical parts of the hull. This has been done using the Nastran solution for the unconstrained structures.

Finally, after imposing a failure index safety threshold, the hull structure, made of carbon fiber layers and a Nomex honeycomb core, has been reinforced.

Once the optimal layers thickness has been found, it has been necessary to check that the structure’s new balance and the consequent stresses, caused by the hull weight enhancement, met the failure index requirements previously imposed.

Keywords: catamaran - hull - composite materials - finite element method - Nastran

Riferimenti

Scarica adesso ( PDF - 1 pagine - 173.49 KB )

Documenti correlati

DOES THE APP CONTRIBUTE TO THE PRECARIZATION OF WORK?

drivers displays features of precarious work in nearly all analysed dimensions: it is insecure (no employment contracts), unstable (the formal situation of Uber

The work first examines the status of

However, according to the highly influential arguments of Kurt Flasch (particularly in his book Nicolaus Cusanus, an attempt at an introduction to Cusanus’

One of the most common procedures for the synthesis of pseudoglycals is the Ferrier allylic rearrangement of glycals.

When the addition reactions were repeated by treating a benzene solution of aziridine 2.2 with only a small amount of nucleophile (3-4 equiv) (protocol B), with the only exclusion

The most common spices

White mustard seeds are normally used in Britain to make traditional pickles, along with coriander seeds, allspice berries, dried chillies and black peppercorns.. However, they add

The aim of this work is to bring a cytotaxonomic contribution to the knowledge of the geophytic element of the Greek flora.

The Greek Islands are generally subdivided into two groups, according to the location: the Ionian Islands (including Kerkira, Cephalonia, Lefkas, Zakinthos,

The purpose of this thesis is to reconstruct the paleoclimate record of the past climatic conditions during the Holocene.

The stalagmites, CC53, CC4 and CC27, were collected in the so-called "Galleria delle Stalattiti", a phreatic conduit in the Corchia Cave, placed ca.. The stable isotopes

First of all the Pareto boundaries are the first and most important generalization of the concept of optimum

Let f be a real linear functional strictly increasing on the space R n ; since f is continuous, for the Weierstrass theorem, it admits a point of maximum in the compact K; since f

The issue of tax liability has taken over the years the role of the general problem of the most debated and complex

This study aimed to analyze the issue of income tax liability of individual company and professional activities with particular focus to subjects whose tax liability is not