Browsing Ingegneria meccanica by Title
Now showing items 1-20 of 44
-
Additive manufacturing of metal alloy for aerospace by means of Powder Laser Cladding: station tuning and clad characterization
(Universita degli studi di Salerno, 2016-04-04)This thesis investigates the application of continuous coaxial laser cladding by powder injection as repair and cover process. The investigation aimed to check the possibility of repairing a V-groove geometry on a substrate ... -
Advances in lubrication technology and modelling. Novel nanoscale friction modifiers - Piezoviscosity effect in EHL contacts
(Universita degli studi di Salerno, 2014-06-22)Lubricant additives have an important influence on the lubrication performances. These additives are active ingredients which can be added during a blending process to base oils in order either to enhance the existing ... -
Analisi sperimentale delle prestazioni energetiche dei fluidi frigoriferi tipo “HFO” candidati alla sostituzione dell’R134a
(Universita degli studi di Salerno, 2016-04-07)The present experimental work was born from the need to expand the knowledge on the new type of refrigerant fluids, the HFO, representing the fourth generation of fluorinated refrigerants, born in response to the directives ... -
Caratterizzazione termo-fluidodinamica ed ottimizzazione delle prestazioni di un prototipo di refrigeratore magnetico a magneti permanenti rotanti operante a temperatura ambiente
(Universita degli studi di Salerno, 2016-04-11)The main purpose of the present work was the completion and the thermo-fluid dynamic characterization of a Rotary Permanent Magnet Magnetic Refrigerator operating at room temperature. The experimental device consists ... -
Controllo delle vibrazioni mediante l'uso di PAC (Programmable Automation Controller)
(Universita degli studi di Salerno, 2012-07-07)Con l'espressione `Vibration Control' si intende l'insieme delle tecniche e dei dispositivi che consentono di mitigare in modo rapido, a dabile e preciso le vibrazioni di macchine o strutture, dovute al loro stesso ... -
Definizione, modellazione teorico – sperimentale ed energy management di sistemi termo – fotovoltaici a concentrazione
(Universita degli studi di Salerno, 2017-04-12)The evolution in the renewable energies field led to search for solutions that allow the combined achievement of heterogeneous energy vectors. This theme introduces multiple levels of analysis, from the definition of new ... -
Design and optimization of a protection device for laser weld beads of metal alloys for aerospace applications
(Universita degli studi di Salerno, 2013-09-09)In the present thesis an automated laser welding apparatus was designed and developed in order to perform laser , that allows to achieve laser welding in a controlled, versatile, efficient, reliable, simple, and economical ... -
Development and experimental validation of CPOx reforming dynamic model for fault detection and isolation in SOFC systems
(Universita degli studi di Salerno, 2015-06-13)In the present work an investigation of the reforming technologies available for Solid Oxide Fuel Cell (SOFC) systems and their basic concepts has been carried out, with the aim to describe, test and simulate the reforming ... -
Development of a model-based diagnosis algorithm oriented towards solid oxide fuel cell systems: approach and application
(Universita degli studi di Salerno, 2014-07-07)The present dissertation illustrates the complete procedure of developing a model-based diagnosis algorithm and shows its application to a pre-commercial Solid Oxide Fuel Cell (SOFC) system. The main motivations of this ... -
Development of solid oxide fuel cell stack models for monitoring, diagnosis and control applications
(Universita degli studi di Salerno, 2013-07-26)In the present thesis different SOFC stack models have been presented. The results shown were obtained in the general framework of the GENIUS project (GEneric diagNosis Instrument for SOFC systems), funded by the European ... -
Dry clutch for automated manual transmissions. Structural analysis and control strategies
(Universita degli studi di Salerno, 2014-06-10)The goal of this thesis is the study of the automotive push-type dry clutches used in the Automatic Manual Transmissions (AMTs) and in the Dual Clutch Transmissions (DCTs) in order to improve their performances dur- ing ... -
Dynamics, identification and control of multibody systems
(Universita degli studi di Salerno, 2012-06-04)The central goal of this work is to put in an unified framework Dynamics, Identification and Control of multibody systems. A multibody system is a mechanical system constituted of interconnected rigid and deformable ... -
Electrochemical Impedance Spectroscopy for the on-board diagnosis of PEMFC via on-line identification of Equivalent Circuit Model parameters
(Universita degli studi di Salerno, 2014-04-04)Proton Exchange Membrane, also named Polymer Electrolyte Membrane fuel cells (PEMFC) are interesting devices for energy conversion. Their development is due to the high efficiency, acceptable power density, quick start-up ... -
Energetic performance of regenerators in an active magnetic refrigerator
(Universita degli studi di Salerno, 2012-07-01)A technology that has the potential to create more efficient and compact refrigeration devices is an Active Magnetic Regenerative Refrigerator (AMRR). An AMRR can operate over a broad range of temperatures, as long as ... -
Experimental and numerical characterization of heating domestic appliances for energetic efficiency improvement
(Universita degli studi di Salerno, 2014-12-13)Every year 5 million of boilers for domestic heating are sold in the European Union (EU). Because heating contributes to more than 20% to the whole energy use in the EU strategies for energy saving are of great ... -
Future Vehicles: how to improve comfort and reduce discomfort. A comprehensive study of subjective and objective data.
(Universita degli studi di Salerno, 2022-10-18)Considering a vehicle as anything that transports a person or things (such as a car, a truck, a plane, a bus), in the near future autonomous driving vehicles, or vehicles with a high level of automation, are predicted. ... -
Innovative procedure for measurement uncertainty evaluation of environmental noise accounting for sound pressure variability
(Universita degli studi di Salerno, 2017-04-12)This study aims to demonstrate the importance of uncertainty evaluation in the measurement of environmental noise in the context of Italian legislation on noise pollution. Attention is focused on the variability of the ... -
Innovative techniques for Structural Health Monitoring: a
(Universita degli studi di Salerno, 2011-07-08)The here considered SHM procedure concerns innovative techniques for a structural monitoring of aeronautical components, all of them based upon the use of a Scanning Laser Doppler Vibrometer. The vibrometer is used to ... -
Laser welding of Ti6Al4V alloy by disk laser: analysis and optimization
(Universita degli studi di Salerno, 2012-06-27)Titanium alloys have been successfully applied in many industrial fields because of their better performance and lighter weight than other commonly used structural materials. The conventional welding methods used for ... -
Magnetic refrigeration: an attraction toward our future
(Universita degli studi di Salerno, 2017-04-06)Magnetic refrigeration is an innovative, promising and ecologic technology, which aims to substitute the conventional vapor-compression refrigeration by the employment of solid materials as refrigerants instead of the ...
