ALTOSOLE M.

The paper is mainly focused on the mathematical model of the control pitch mechanism for a marine controllable pitch propeller (CPP), able to perform the propeller blade position change and to give a proper information about the oil pressures, produced inside the CPP hub. In fact, too high pressures can be responsible for the mechanism failure,...

Wetlands are geographic areas where water meets the earth. They cover between 5% and 8% percent of the Earth's surface including coastal areas, swamps rivers and lakes. They are essential ecosystems for human life. Various international conventions, directives and projects work on their protection that can help fighting the disasters resulting...

This paper describes a customized thruster for Autonomous Surface Vehicles (ASV). The thruster is a Pump-Jet Module (PJM), which has been expressly designed, modeled, constructed, and tested for small-/medium-sized ASVs that perform environmental monitoring in extremely shallow waters such as wetlands (rivers, lakes, swamps, marshes), where...

Wetlands, the geographic areas where water meets the earth, are ecosystems essential for life and an increasing number of conventions, directives and research projects recognise the necessity of protecting them. Nevertheless the number, quality and spacial resolution of surveys is modest due to the absence of expressly addressed tools. In this...

About 80% of the total pollution from ships is caused by operational oil discharges into the sea, often made deliberately and in violation of international rules; the main reasons can be due to cost savings or lack of adequate facilities in ports to receive waste oils. Therefore, reducing waste oil discharges is crucial for a proper protection...

This paper is related to the technological development of an innovative small-size Autonomous Surface Vehicle designed to meet the requirement of accessing, monitoring and protecting the shallow waters peculiar of the Wetlands. The first prototype of a fully electric, modular, portable, lightweight, and highly-controllable Autonomous Surface...

The paper presents an experimental analysis of the trim influence on an existing and operating ship, to assess possible fuel consumption reductions. The investigation is based on model tests performed at the towing tank of Genoa University, where the trim influence on the hydrodynamic resistances of a high-speed vessel and a slower mini-cruiser...

The paper presents an integrated simulation approach, combining CFD and time-domain simulation techniques in order to represent the interaction between motor and sailing propulsion of the tall ship Amerigo Vespucci. Through a complete propulsion and generation system retrofitting, the ship will be equipped with a new electric propulsion motor,...