Relevant bibliographies by topics / Propulsione navale

Academic literature on the topic 'Propulsione navale'

Author: Grafiati
Published: 11 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Propulsione navale.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Propulsione navale"

1

Fribourg, Charles. "La propulsion nucléaire navale." Revue Générale Nucléaire, no. 2 (March 1999): 32–49. http://dx.doi.org/10.1051/rgn/19992032.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Altosole, Marco, Ugo Campora, Michele Martelli, and Massimo Figari. "Performance Decay Analysis of a Marine Gas Turbine Propulsion System." Journal of Ship Research 58, no. 03 (September 1, 2014): 117–29. http://dx.doi.org/10.5957/jsr.2014.58.3.117.

Full text
Abstract:
Marine propulsion plants are designed to be more and more efficient to minimize fuel consumption and pollution emissions. However, during the ship operating life, propulsion components and hull are characterized by a certain performance decay, responsible for a worse behavior of the overall propulsion plant. For this reason, the several propulsion components are periodically subjected to expensive maintenance works to restore, as far as possible, their original design characteristics. In the present study, the propulsive performance variation of a naval vessel, powered by a gas turbine as part of an innovative CODLAG system, is simulated and analyzed by means of a detailed and validated numerical code. A sensitivity analysis regarding the influence of the main components deterioration (gas turbine, propellers, and ship hull) on the overall behavior of the propulsion plant is carried out. Several speed profiles of the vessel have been analyzed in terms of the usual performance parameters (ship speed, engine power, and fuel consumption) as well as the pollution emissions of the gas turbine. The main aim of the work is to get useful information for the ship management and maintenance scheduling (condition-based maintenance).
APA, Harvard, Vancouver, ISO, and other styles
3

Lupchian, Mariana. "Influence of propulsion installation performance on travel efficiency." Technium: Romanian Journal of Applied Sciences and Technology 2, no. 7 (September 15, 2020): 50–53. http://dx.doi.org/10.47577/technium.v2i7.1644.

Full text
Abstract:
This paper presents an analysis of exploitation parameters for naval propulsion plant at different operating regimes. For naval propulsion plant with internal combustion engines, is considered as independent variables which give its operating regimes. Functional parameters of analysis of navigational regimes considered representative of the operation of the ship. Propulsion of the ship is provided by a fixed pitch propeller that allows modification propulsion performance by adjusting a single parameter function: speed propeller.
APA, Harvard, Vancouver, ISO, and other styles
4

Lefer, Dominique. "Propulsion nucléaire et propulsion navale ou la maîtrise de deux dimensions." Revue Générale Nucléaire, no. 5 (September 2005): 55–58. http://dx.doi.org/10.1051/rgn/20055055.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Nita, C. M., P. Bocanete, and I. C. Scurtu. "Experimental methods for determining the characteristic quantities of unconventional naval propellers." Technium: Romanian Journal of Applied Sciences and Technology 4, no. 8 (August 26, 2022): 56–63. http://dx.doi.org/10.47577/technium.v4i8.7265.

Full text
Abstract:
Basin research involves the practical realization of the scale structure and the analysis of the results according to the studied models and working frequency. The obtained measurements are close in value to those of the numerical simulations, this confirming the numerical results obtained with Ansys Fluent. The analysis carried out on the non-conventional naval propulsion includes all the calculation elements to be able to expand the understanding of this type of propulsion to be able to find the most suitable ones for use in the naval field and not only. The research carried out in this paper presents numerous elements of analysis of the unconventional naval propulsion system. By plotting and validating the thrust functions for a blade, a complete analysis of how this propulsion works is achieved.
APA, Harvard, Vancouver, ISO, and other styles
6

Kluczyk, Marcin, and Andrzej Grządziela. "Vibration diagnostics of the naval propulsion systems." Zeszyty Naukowe Akademii Marynarki Wojennej, no. 1 (March 31, 2017): 15–29. http://dx.doi.org/10.5604/0860889x.1237619.

Full text
Abstract:
The paper presents examples of vibration performances of the naval propulsion systems. It describes the methodology of preparation for measurement, used gauges and their restrictions. The necessity of synchronous measurements had been justified. The work contains also samples of analysis, to facilitate the reader with the components of amplitude-frequency spectra of naval propulsion systems. An overview of the existing normative documents had been presented. At the same time limitations of applying of them during technical monitoring of marine propulsion systems had been presented.
APA, Harvard, Vancouver, ISO, and other styles
7

Emmet, W. L. R. "ELECTRIC PROPULSION OF NAVAL VESSELS." Journal of the American Society for Naval Engineers 23, no. 1 (March 18, 2009): 106–25. http://dx.doi.org/10.1111/j.1559-3584.1911.tb03523.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Altosole, Marco, Giovanni Benvenuto, Massimo Figari, and Ugo Campora. "Dimensionless Numerical Approaches for the Performance Prediction of Marine Waterjet Propulsion Units." International Journal of Rotating Machinery 2012 (2012): 1–12. http://dx.doi.org/10.1155/2012/321306.

Full text
Abstract:
One of the key issues at early design stage of a high-speed craft is the selection and the performance prediction of the propulsion system because at this stage only few information about the vessel are available. The objective of this work is precisely to provide the designer, in the case of waterjet propelled craft, with a simple and reliable calculation tool, able to predict the waterjet working points in design and off-design conditions, allowing to investigate several propulsive options during the ship design process. In the paper two original dimensionless numerical procedures, one referred to jet units for naval applications and the other more suitable for planing boats, are presented. The first procedure is based on a generalized performance map for mixed flow pumps, derived from the analysis of several waterjet pumps by applying similitude principles of the hydraulic machines. The second approach, validated by some comparisons with current waterjet installations, is based on a complete physical approach, from which a set of non-dimensional waterjet characteristics has been drawn by the authors. The presented application examples show the validity and the degree of accuracy of the proposed methodologies for the performance evaluation of waterjet propulsion systems.
APA, Harvard, Vancouver, ISO, and other styles
9

Havard, Jean. "La maîtrise d'œuvre des réacteurs de propulsion navale." Revue Générale Nucléaire, no. 5 (September 1995): 353–55. http://dx.doi.org/10.1051/rgn/19955353.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Stan, L. C. "Efficiency analysis of a four-stroke marine engine." Scientific Bulletin of Naval Academy XIV, no. 2 (December 15, 2021): 112–22. http://dx.doi.org/10.21279/1454-864x-21-i2-010.

Full text
Abstract:
Conventional propulsion systems consisting of the main propulsion machine, transmission (axle line) and propeller fail to always meet all the conditions of flexibility, manoeuvrability and space requirements imposed on a modern naval propulsion system. The imposition of new, strict rules in shipbuilding and navigation has led to the emergence of new naval equipment, new propulsion systems that have changed the ship's arrangements for economic and efficiency reasons. The useful volume compared to the total volume of the ship is a good economic indicator that allows the analysis of the income and expenses of construction and operation of the ship. For example, following the analysis of the use of space on board passenger ships built in the last 50 years, the ratio between the volume intended for the propulsion installation and the total volume of the ship varies around an average of 11.3%, (between 8% and 17.5%, exceptionally reaching 22%).
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Propulsione navale"

1

Iannaccone, Tommaso. "Analisi del comportamento di serbatoi di gas naturale liquefatto per applicazioni di propulsione navale in scenari di incendio." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

Find full text
Abstract:
Il presente lavoro di tesi vuole focalizzare l’attenzione sull’impiego del GNL per la propulsione navale, analizzando aspetti legati alla sicurezza delle infrastrutture necessarie a tale scopo. Si sono considerati due diversi casi di studio: il primo riguarda un deposito costiero attrezzato per poter svolgere attività di rifornimento per imbarcazioni, mentre il secondo caso interessa una nave da trasporto passeggeri alimentata a GNL. È stata condotta un’analisi del rischio: l’identificazione dei pericoli ha seguito le linee guida proposte dalla metodologia MIMAH, oltre a sfruttare risultati di analisi HAZOP e HAZID. La stima delle frequenze di rilascio è stata effettuata con la tecnica della parts count, sulla base di valori ottenuti da database affidabilistici. La valutazione delle conseguenze è stata realizzata con il supporto del software DNV PHAST, utilizzando come riferimento i valori soglia proposti dal D.M. 9/5/2001. È stata infine impostata una modellazione fluidodinamica con lo scopo di valutare la possibilità di rottura catastrofica dei serbatoi di stoccaggio dovuta ad un’eccessiva pressurizzazione causata da una situazione di incendio esterno. Le simulazioni sono state condotte con il supporto del software CFD ANSYS® FLUENT® 17.2. Si è modellata una situazione di completo avvolgimento dalle fiamme considerando due geometrie di serbatoio diverse, nel caso di materiale isolante integro o danneggiato. I risultati ottenuti dall’analisi del rischio mostrano come i danni derivanti da un ipotetico scenario incidentale possano avere conseguenze anche significative, ma con valori di frequenze di accadimento tipici di situazioni rare. Lo studio fluidodinamico del comportamento di serbatoi di stoccaggio avvolti dalle fiamme ha evidenziato come questi siano capaci di resistere a condizioni gravose di incendio per tempi prolungati senza che si abbia una pressurizzazione tale da destare preoccupazione per l’integrità strutturale delle apparecchiature.
APA, Harvard, Vancouver, ISO, and other styles
2

Aizza, Marco. "Modelli per la simulazione di azionamenti elettrici di propulsione e sistemi di generazione navali." Doctoral thesis, Università degli studi di Trieste, 2013. http://hdl.handle.net/10077/8532.

Full text
Abstract:
2011/2012
La propulsione elettrica navale è una soluzione che riscuote notevole interesse per le navi di nuova generazione. La sua versatilità permette di ottimizzare gli spazi ed i pesi del sistema elettrico di propulsione. Questo sistema garantisce una riduzione dei consumi specifici del motore primo che, al variare della velocità di rotazione dell’elica connessa alla macchina elettrica, lavora costantemente alla velocità nominale, dove i consumi sono ottimizzati. Il presente elaborato si pone come obiettivo lo studio di un sistema di propulsione ibrida, composto da una turbina a gas e due azionamenti elettrici, installato su navi militari di nuova concezione. Il sistema è in grado di funzionare anche come generatore asse. Lo studio si focalizzerà principalmente sugli azionamenti elettrici del sistema di propulsione e sulla loro interazione con il sistema elettrico integrato di bordo. L’obiettivo principale è quello di realizzare un simulatore dettagliato dell’azionamento elettrico di propulsione, permettendo di studiare il funzionamento dello stesso in regime stazionario e in regime dinamico. Viene quindi eseguita una modellizzazione matematica dettagliata dell’azionamento di propulsione oggetto di studio, dalla macchina elettrica ai convertitori di propulsione. Lo studio è condotto allo scopo di ottenere informazioni riguardanti il comportamento dell’azionamento, in determinate condizioni di funzionamento, e gli effetti da esso causati sulla rete elettrica di bordo. Viene poi descritto il modello del sistema funzionante in modalità di “generatore asse”, dalla trattazione fatta sul sistema di propulsione, effettuando una validazione del relativo simulatore implementato, attraverso la comparazione tra i risultati ottenuti e le prove di collaudo fornite dai produttori del sistema oggetto di studio. Viene infine trattato uno degli argomenti più promettenti nell’ambito della propulsione elettrica navale, il sistema di distribuzione in media tensione continua (MVDC). Il sistema MVDC è una soluzione che riscuote notevole interesse nell’ambito delle “all-electric ship” di nuova generazione, grazie ai vantaggi offerti in termini di riduzione di pesi e dimensioni del sistema di generazione e di consumo di energia.
XXV Ciclo
1981
APA, Harvard, Vancouver, ISO, and other styles
3

BONO, ANDREA. "Criticità nelle esigenze e nelle offerte energetiche: il ruolo rilevante della progettazione e della gestione ottimizzata delle macchine a fluido e dei sistemi per la conversione di energia. Aspetti applicativi nella piccola fornitura di energia e nella propulsione navale." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1046981.

Full text
Abstract:
The present work deals with environmental sustainability and specific engineering solutions able to cope with such a global issue. Attention is focused on renewable energy and innovative fuels as effective strategies in contributing valuable techniques in order to face the need of mitigating environmental problems concerning climate change and global warming. The research study is targeted on optimized design and management of fluid machinery, and extensively on optimized energy conversion systems, conceptualized in accordance with current standards and regulations, governing the reference sector. The analysis investigates small energy supply from renewables (wind power) and innovative marine propulsion (alternative fuels and unconventional propulsion systems). Regulations and technical design are constantly focused for the study. The work proposes case solutions for energy design and management actions dealing with the theme of environmental sustainability: engineering analyses (design, technical-economical evaluation, performance results) for hybrid wind powered plants empowering SWRO (Sea Water Reverse Osmosis) desalination processes; engineering analyses (design, technical evaluation, performance results) for wind turbine rotors operating in sites characterized by a small wind resource; engineering analyses (design, technical evaluation, performance results) for marine ship propulsion empowered by LNG as an alternative sustainable fuel and by gas turbines as prime movers coupled to combined cycles as an innovative propulsion system (COGES configuration).
APA, Harvard, Vancouver, ISO, and other styles
4

Convert, Damien. "Propulsion magnétohydrodynamique en eau de mer." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10002.

Full text
Abstract:
L'idee simple d'utiliser les forces de laplace pour propulser en eau de mer un navire est apparue des les annees 1960. Les performances etaient alors trop limitees par les inductions des aimants a bobinage classique. Le developpement d'aimants supraconducteurs de grand volume et a forte induction, jusqu'a 10 tesla, relance l'interet de cette propulsion magnetohydrodynamique qui, en supprimant toute piece mecanique mobile, presente une grande furtivite. Cette etude concerne les propulseurs a conduction, c'est a dire que le champ electrique et le courant qui interagissent avec le champ magnetique sont appliques dans le fluide par des electrodes. Une approche globale du systeme propulsif montre que les couplages entre les aspects hydrodynamiques, electromagnetiques et electrochimiques sont faibles. L'etablissement detaille du bilan de quantite de mouvement, conjugue avec diverses expressions de l'equation de bernoulli et de la loi d'ohm, permet de construire un modele unidimensionnel simple. Une demarche d'optimisation des performances amene a considerer une geometrie annulaire s'integrant bien au navire. Dans une seconde partie, les limitations de la modelisation unidimensionnelle sont mises en evidence en plusieurs points. Tout d'abord, l'ecoulement amont est aborde par un calcul en fluide parfait qui montre la non uniformite des vitesses en entree du propulseur, et ces consequences possibles. D'autre part, le couplage entre un modele mecanique et un modele electromagnetique dans deux plans distincts est applique a la propulsion en mode externe. Ce systeme apparait moins performant que ceux envisages precedemment mais il presente de grands avantages par la simplicite du bobinage supraconducteur. Le couplage entre electrochimie et mecanique des fluides est aborde grace a un pilote experimental d'electrolyse en ecoulement realise lors de ce travail. L'etude des reactions aux electrodes montre la difficulte a privilegier un type de degagement. La validation de methodes video sous microscope permet l'analyse des microbulles d'electrolyse
APA, Harvard, Vancouver, ISO, and other styles
5

Papale, Davide. "High performance waterjets: study of an innovative scoop inlet and development of a novel method to design ducted propellers." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424758.

Full text
Abstract:
In the last decades the diffusion of waterjet systems for commercial applications in the high speed field is on the increase. These marine propulsors show remarkable qualities in terms of fuel consumption, noise, vibrations and manoeuvrability but they have some disadvantages which make their use optimal only for a limited speed range and which limit the overall propulsive efficiency. In the present document is described a way to modify a conventional waterjet with the aim of reducing these problems, increasing the overall efficiency. Many problems are dealt with. In chapter 3 it is shown how the substitution of a conventional flush inlet with a new scoop inlet could be an efficient way to minimise the total pressure losses and the non-uniformity velocity distribution upstream the pump, limiting in this way the influence of the boundary layer ingestion on the machine performance. In chapter 4 a novel method to study and design axial pumps is developed and explained. In chapter 5 a rim driven propeller is designed and tested numerically and experimentally demonstrating the good prediction capabilities of the method.
Il documento riassume il progetto di dottorato sugli idrogetti ad alte prestazioni condotto dall'autore nel periodo che va dal 2012 al 2014. Durante il triennio sono stati affrontati due filoni principali di ricerca riguardo questi propulsori, focalizzandosi in particolare sullo studio dell'imbocco e del sistema pompante. Un idrogetto è una propulsore navale che riesce a produrre una forza propulsiva accelerando una massa d'acqua; durante questo processo la massa d'acqua, originariamente presente libera nell'ambiente marino o fluviale, attraversa quattro diversi componenti: l'imbocco, il sistema pompante, l'ugello e il sistema sterzante. Ogni componente possiede una sua funzionalità ma in generale massimizzando l'efficienza di questi componenti è possibile osservare un generico aumento delle prestazioni complessive. Il lavoro qui presentato si è focalizzato sullo studio dell'imbocco e del sistema pompante; volendo essere di carattere innovativo, le configurazioni e le idee qui presentate rappresentano delle alternative costruttive o metodologiche sostanzialmente differenti dalla comune prassi industriale. Lo studio dell'imbocco ha avuto come linea guida il confronto tra un imbocco commerciale di stampo tradizionale (i cosiddetti imbocchi flush) e un imbocco dinamico di derivazione aeronautica (imbocchi scoop). Lo studio, oltre a rappresentare forse l'unico caso in letteratura di studio specifico su imbocchi dinamici, mette in luce le criticità dell'imbocco tradizionale mostrando una via alternativa alla prassi industriale. Lo studio analizza le performance in termini di perdite di pressione totali e fattore di distorsione di questi due imbocchi, con e senza la presenza dell'albero di trasmissione, attraverso diverse analisi CFD. Interessante è la derivazione aeronautica dell'imbocco dinamico preso “in prestito” da studi NASA riguardanti un imbocco per un aereo sperimentale caratterizzato da importanti spessori dello strato limite. Lo studio dimostrerà, per il caso in analisi, la superiorità dell'imbocco dinamico rispetto a quello tradizionale nei termini di paragone sopra descritti, dimostrando la necessità di affrontare con critico approfondimento lo studio degli imbocchi sugli idrogetti in ambito industriale, rimettendo in discussione molti dogmi dati per scontati nella realtà industriale ma in verità mai dimostrati nella letteratura scientifica. Lo studio dell'apparato pompante è stato affrontato in due fasi, la prima squisitamente teorica , la seconda di carattere sperimentale. La fase teorica ha visto la definizione di un nuovo metodo per la progettazione di un apparato pompante assiale. Il metodo, che è stato successivamente implementato in un programma Matlab e validato, è un metodo di carattere generale frutto della combinazione di diversi metodi analitici già utilizzati in letteratura ma in maniera concettualmente differente; anche se sviluppato originariamente per una pompa di un idrogetto, è stato pensato per avere una validità generale e può essere utilizzato per lo studio di una qualsiasi pompa assiale intubata. Il metodo rappresenta una combinazione di un metodo BEM (Blade Element Momentum) con due teorie analitiche per il calcolo dei coefficienti di portanza e resistenza dei profili alari (Weinig e Lieblein) e dell'equazione di Eulero per le turbomacchine. Il metodo risultante è un metodo fortemente iterativo che permette di calcolare la geometria di una pompa assiale intubata e le sue prestazioni anche fuori dal punto di progetto senza la necessità di utilizzare fattori empirici di discutibile attendibilità; esso si dimostra quindi un metodo innovativo e flessibile per lo studio completo di un generico propulsore intubato. Il metodo è stato implementato e testato sia numericamente che sperimentalmente grazie alla collaborazione della “University of Southampton” e della ditta “TSL Technology” su un propulsore elettrico attuato in periferia. Il propulsore in questione fa parte di una classe di propulsori di nuova concezione meglio conosciuti come RDP (Rim Driven Propeller) che fra le varie caratteristiche hanno quella di abbandonare la necessità di un albero per la trasmissione della coppia motrice con la conseguente assenza delle perdite dovute alla presenza dell'albero immerso nel flusso dell'acqua. La realizzazione sperimentale di questo propulsore, oltre ad aver sensibilmente migliorato l'efficienza del propulsore rispetto a quelli sviluppati in passato dalla ditta coinvolta, ha dimostrato l'attendibilità del modello analitico sviluppato.
APA, Harvard, Vancouver, ISO, and other styles
6

Froidurot, Benoît. "Discrétion magnétique des machines électriques de propulsion navale." Grenoble INPG, 2002. http://www.theses.fr/2002INPG0074.

Full text
Abstract:
Les machines électriques deviennent le mode principal de propulsion des navires civils depuis quelques années car elles présentent de nombreux avantages. Cependant, l'application aux bâtiments militaires pose des problèmes de discrétion magnétique, notamment pour la lutte anti-mines. Le but de cette thèse est par conséquent de déterminer les champs magnétiques émis par une machine électrique. L'étude et la connaissance de ces champs permettent alors de les compenser de manière à rendre la machine magnétiquement discrète. La solution réside dans un système de compensation externe composé de bobines alimentées judicieusement selon les champs rotorique et statorique de la machine
APA, Harvard, Vancouver, ISO, and other styles
7

Dadd, George M. "Kite dynamics for ship propulsion." Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/351348/.

Full text
Abstract:
Kite propulsion has emerged as an attractive means to harness wind power in a way that yields environmental and financial benefits. An understanding of the dynamics that affect kite motion and the resulting forces is required to facilitate the design and optimization of kite propulsion systems. In this thesis results from two line tension models are compared with experimentally recorded time histories for dynamic kite flight. New methodologies for investigating kite performance are established. The first zero mass model assumes that the kite and lines are weightless. The second, lumped mass model, considers the kites mass and thus makes use of the equations of motion. It is found that the two different models converge to the same result in the limit where the kite mass tends to zero. The zero mass model has been shown to compare favourably with experimental results. A method for parameterising figure of eight shape kite trajectories and for predicting kite velocity is presented. Results are shown for a variety of manoeuvre shapes, assuming realistic performance characteristics from an experimental test kite. Using a 320m2 kite, with 300m long flying lines in 6.18ms.
APA, Harvard, Vancouver, ISO, and other styles
8

Debbou, Mustapha. "Modélisation et commande d'un système innovant pour la propulsion navale." Thesis, Toulouse, INPT, 2014. http://www.theses.fr/2014INPT0028.

Full text
Abstract:
Les travaux menés durant cette thèse s'intéressent principalement aux avantages que peut offrir la machine asynchrone à double alimentation (MADA) dans un système de propulsion navale. Ceci est obtenu à travers les degrés de libertés additionnels qu'elle apporte, d'une part, par l'exploitation de la redondance structurelle naturelle, et d'autre part , par les stratégies de contrôle qui lui sont appliquées. La première partie de ce mémoire, présente la modélisation du propulseur innovant. Ce dernier est conçu principalement autour de la MADA comme moteur de propulsion. Il est alimenté par deux onduleurs de tension à Modulation de Largeur d'Impulsion (MLI), et entrainant une hélice à trois pales fixes et symétriques. Plusieurs stratégies de commande ont été introduites pour piloter le système. En effet, des lois de contrôle de type linéaires et non linéaires, associées à des divers modulateurs MLI ont été validées et appliquées à cette structure de propulsion. L'innovation apportée dans le cadre de ces travaux consiste à associer à l'optimisation par conception (machine et convertisseurs d'alimentation), une optimisation par la commande et ce en évaluant l'influence de ces techniques pour deux critères de dimensionnement majeurs, à savoir, les pertes dans les convertisseurs de puissances, et les bruits acoustiques et vibratoires. La propulsion navale, comme tout système embarqué, possède des exigences en matière de qualité de service non seulement en termes de performances mais aussi de fiabilité et de disponibilité. En effet, les systèmes conçus pour ce type d'application doivent assurer et garantir une continuité de service en cas d'apparition de défauts au sein des constituants du système. L'utilisation de la MADA dans les systèmes de propulsion offre une redondance structurelle naturelle et analytique, introduite par la commande, qui permet d'assurer une continuité de service du système en présence d'une défaillance dans la structure. Deux défauts sont ainsi considérés dans cette étude, un défaut de semi-conducteur de puissance dans le convertisseur de puissance et un défaut de capteur vitesse/position. Les stratégies de contrôle proposées, les modèles de propulseur établis ainsi que les reconfigurations adoptées suite aux défauts ont été validées expérimentalement sur les bancs développés au LAPLACE dans le cadre de ces travaux
This study focuses on the benefits that can be induced by the use of the Double Fed Induction Machine (DFIM) operating in motor mode for marine propulsion systems. It can be achieved by the additional degree of freedom it provides, firstly, by exploiting the natural structural redundancy, and secondly, by the alytical redundancy introduced by applied control strategies. The first part of this thesis presents the modeling of a propeller architected mainly around the DFIM and its load such as a propeller with three fixed and symmetrical blades. Several control strategies have been introduced to control the system, in fact, linear and nonlinear control laws type associated with various modulators have been validated and applied to the propulsion structure. The objective was to evaluate the influence of these techniques for two major design criteria, namely, losses in power converters, and noise and vibration noise. Naval propulsion as any embedded system has requirements for the quality of service not only in performance but also reliability and availability. Indeed, the systems designed for these types of applications must ensure and guarantee continuity of service in response to the failures in system components. The use of MADA in propulsion systems provides a natural structural and analytical redundancies which ensure system service continuity in the presence of a fault in this structure. Two faults are considered in this study, a power semiconductor fault in the power converter and a speed sensor / position failure. Control strategies proposed, the propeller modeling established and reconfigurations adopted following settings have been validated by simulation and experimentally on the real laboratory or industrial benches developed in the context of this study
APA, Harvard, Vancouver, ISO, and other styles
9

Waller, Brian S. "Development of a Quantitative Methodology to Forecast Naval Warship Propulsion Architectures." ScholarWorks@UNO, 2015. http://scholarworks.uno.edu/td/2000.

Full text
Abstract:
This paper is an investigation into a quantitative selection process of either a mechanical or electrical system architecture for the transmission of propulsion power in naval combatant vessels. A database of historical naval ship characteristics was statistically analyzed to determine if there were any predominant ship parameters that could be used to predict whether a ship should be designed with a mechanical power transmission system or an electric one. A Principal Component Analysis was performed to determine the minimum number of dimensions required to define the relationship between the propulsion transmission architecture and the independent variables. Combining the results of the statistical analysis and the PCA, neural networks were trained and tested to separately predict the transmission architecture or the installed electrical generation capacity of a given class of naval combatant.
APA, Harvard, Vancouver, ISO, and other styles
10

Man, S. "Aquatic flight inspired propulsion for autonomous underwater vehicles." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/385840/.

Full text
Abstract:
Modern Autonomous Underwater Vehicle (AUV) technology has a number of limitations and one of these is vehicle manoeuvrability. Conventional flight style AUVs generally have turning circle diameters of five or more vehicle lengths, but most marine animals can turn in under one body length. This shows there is merit in looking at marine animals for inspiration to improve the manoeuvrability of AUVs. Aquatic flight propulsion is one marine animal propulsion strategy that was identified early in the research as having the potential to full fill this role. Aquatic flight propulsion has been studied experimentally in the past, but most of the past research focused in one or two axis aquatic flight (foil pitch and dorsoventral roll). However, marine animal literatures show animal aquatic flight is a three axis problem and there is an additional motion component in anteroposterior yaw. The effect of this yaw motion is not well understood and this will be the focus of this thesis’s research. The effect of aquatic flight yaw motion is investigated using a combination of computation modelling and experimental studies. It found two-axis aquatic flight is better for producing propulsive thrust for most scenarios, but three-axis aquatic flight is useful for producing additional off axis force. In particular, the three axis slanted foil actuation path can produce a sizeable vertical force with very little change to the horizontal thrust coefficient, which would be very useful for a positively buoyant AUV to control its depth. The experiment verified the model’s results and many of the experiment data points were within 30% of the model prediction. The experiment has a relatively large uncertainty due to turbulences in the recirculating water channel, so 30% is a reasonably good fit. Whilst there is room for improvement for both the model and the experiment, the current model is sufficient to produce provisional estimates for actuator and control system design as well as identification of various cases of interest for further in depth analysis.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Propulsione navale"

1

B, Hadler Jacques, and Paulling J. Randolph, eds. Propulsion. Jersey City, N.J: Society of Naval Architects and Marine Engineers, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Carr, Matthew A. Principles of naval engineering: Propulsion and auxiliary systems. Annapolis, Md: Naval Institute Press, 2012.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Carlton, John. Marine propellers and propulsion. 2nd ed. Amsterdam: Elsevier Butterworth-Heinemann, 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Thomas, Mark W. Evaluation and optimization of axial air gap propulsion motors for naval vessels. Springfield, Va: Available from National Technical Information Service, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Shipboard propulsion, power electronics, and ocean energy. Boca Raton, FL: Taylor & Francis, 2012.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Porche, Isaac. Framework for quantifying uncertainty in electric ship design. Santa Monica, CA: RAND, National Defense Research Institute, 2004.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Marine, propulsion et technique: L'évolution du système technologique du navire de guerre français au XVIIIe siècle. Paris: Libr. de l'Inde, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

United States. Dept. of Energy. and United States. Navy Dept., eds. 100,000,000 miles safely steamed on nuclear power: The United States Naval Nuclear Propulsion Program, January 1955 - April 1994. [Washington, D.C.?]: Dept. of Energy, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

United States. Dept. of Energy and United States. Navy Dept, eds. 100,000,000 miles safely steamed on nuclear power: The United States Naval Nuclear Propulsion Program, January 1955 - April 1994. [Washington, D.C.?]: Dept. of Energy, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

United States. Dept. of Energy and United States. Navy Dept, eds. 100,000,000 miles safely steamed on nuclear power: The United States Naval Nuclear Propulsion Program, January 1955 - April 1994. [Washington, D.C.?]: Dept. of Energy, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Propulsione navale"

1

Mulford, Edgard, Julio Carrasquilla, and Gonzalo Moreno. "Proactive Maintenance in the Azimuth Marine Propulsion: SCHOTTEL Condition Monitoring Solutions." In Proceeding of the VI International Ship Design & Naval Engineering Congress (CIDIN) and XXVI Pan-American Congress of Naval Engineering, Maritime Transportation and Port Engineering (COPINAVAL), 413–23. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-35963-8_35.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

La Paz, P., and J. Freiria. "Review of Renewable Energies for Naval Propulsion and Its Application in the National Fleet." In Proceedings of the 25th Pan-American Conference of Naval Engineering—COPINAVAL, 337–48. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89812-4_30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

da Silva, Rubens C., Rodrigo F. Nunes, Thadeu L. C. dos Santos, and Kazuo Nishimoto. "Hydrodynamic Analysis and Propulsive Arrangement of Two Corvette Hulls with Different Operational Profiles." In Proceedings of the 25th Pan-American Conference of Naval Engineering—COPINAVAL, 35–46. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89812-4_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Insignares, Eduardo, Bharat Verma, and David Fuentes. "Evaluation Methodology for the Selection of the Combined Propulsion System for an Offshore Patrol Vessel (OPV93C)." In Proceeding of the VI International Ship Design & Naval Engineering Congress (CIDIN) and XXVI Pan-American Congress of Naval Engineering, Maritime Transportation and Port Engineering (COPINAVAL), 211–22. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-35963-8_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Nuruddin, Hamdan, Muhammad Hazwan Azizi, Muhammad Nasuha Mansor, Shaiful Bakri Ismail, and Iwan Zamil Mustaffa Kamal. "Forensic Investigation on the Propulsion Train System for Vibration Induced Phenomenon Onboard a Naval Vessel Using Fast Fourier Transform." In Lecture Notes in Mechanical Engineering, 25–32. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0002-2_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Pérez Osses, Joel R., and Carlos A. Reusser Franck. "Optimization of the Emissions Profile of a Marine Propulsion System Using a Shaft Generator with a MMPT Based Control System and the Use of EEDI and EEOI." In Proceeding of the VI International Ship Design & Naval Engineering Congress (CIDIN) and XXVI Pan-American Congress of Naval Engineering, Maritime Transportation and Port Engineering (COPINAVAL), 258–74. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-35963-8_22.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

MUCKLE, W. "Propulsion." In Muckle's Naval Architecture, 289–341. Elsevier, 1987. http://dx.doi.org/10.1016/b978-0-408-00334-6.50015-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Tupper, Eric C. "Propulsion." In Introduction to Naval Architecture, 161–203. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-08-098237-3.00008-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Tupper, E. C. "Propulsion." In Introduction to Naval Architecture, 174–217. Elsevier, 2004. http://dx.doi.org/10.1016/b978-075066554-4/50011-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Ragheb, Magdi. "Nuclear Naval Propulsion." In Nuclear Power - Deployment, Operation and Sustainability. InTech, 2011. http://dx.doi.org/10.5772/19007.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Propulsione navale"

1

Gandoin, Nicolas. "Propulsion navale : conception des protections et validation." In Radioprotection : méthodes et outils de calcul en propagation des rayonnements. Les Ulis, France: EDP Sciences, 2019. http://dx.doi.org/10.1051/jtsfen/2019rad06.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kumm, William H. "Optimized Fuel Cell Propulsion For Submarines." In Warship 91- Naval Submarines. RINA, 1991. http://dx.doi.org/10.3940/rina.warship.1991.16.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Karlsson, M. "Propulsion Systems for Future Torpedoes." In Warship 88 - Naval Submarines 2. RINA, 1988. http://dx.doi.org/10.3940/rina.warship.1988.20.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Wettstein, Hans E. "SCRC Technology for Naval Propulsion." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20080.

Full text
Abstract:
Supercharged Diesel engines are nowadays dominating naval propulsion. They have a thermal efficiency up to 50% and can swallow almost any liquid fuel. But there are two main drawbacks: Nitrogen oxides emissions of Diesel engines are sometimes higher than desired. Low speed vibrations can often be felt everywhere on the vessel. Some cruising ships therefore use gas turbines in spite of the lower thermal efficiency. But instead of supercharging Diesel engines also gas turbines can be supercharged. In combination with recuperation they could achieve even a higher thermal efficiency than Diesel engines. Such a concept with the name “Semi-Closed Recuperated Cycle” (SCRC) has been proposed in [1] for replacing gas turbine combined cycles. This paper shows new results of thermodynamic calculations of the SCRC with adiabatic or intercooled compressors. These calculations are optimized for naval applications with liquid fuels. The state of the SCRC technology is described with its expected operation, control concepts and limitations. Based on this investigation there is good evidence that supercharged Diesel technology for naval application could be seriously competed by the SCRC technology with respect to thermal efficiency, vibration (engine smoothness), emissions and specific mass (per kW power). It is the declared intention of the author to find companies who are interested in developing this technology.
APA, Harvard, Vancouver, ISO, and other styles
5

Knaack, K., and G. SAttler. "Comparison of Different Hybrid Propulsion Systems." In Warship 88 - Naval Submarines 2. RINA, 1988. http://dx.doi.org/10.3940/rina.warship.1988.30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Zubair, A. "Alternative Propulsion for Nuclear Submarines." In Warship 2011: Naval Submarines and UUV'S. RINA, 2011. http://dx.doi.org/10.3940/rina.ws.2011.20.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Hadler, J. B. "The Effect of Propeller Loading on Thrust Deduction." In SNAME 26th American Towing Tank Conference. SNAME, 2001. http://dx.doi.org/10.5957/attc-2001-009.

Full text
Abstract:
The propulsion factor called thrust-deduction fraction, t, trets the interaction of the propeller with the hull when the ship is underway and is an important element in determining the propulsive performance of a vessel. The reduced pressure field created by the propeller at the stern of a ship effectively increases the ship's resistance. The naval architect treats this increase in resistance as a deduction from the propeller thrust.
APA, Harvard, Vancouver, ISO, and other styles
8

Dahlander, Par. "A Realistic Air Independent Propulsion System For Today and The Near Future." In Warship 91- Naval Submarines. RINA, 1991. http://dx.doi.org/10.3940/rina.warship.1991.2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Benatmane, M., and B. Salter. "Naval Hybrid Power Take-Off and Power Take-In – Lessons Learnt and Future Advances." In 14th International Naval Engineering Conference and Exhibition. IMarEST, 2018. http://dx.doi.org/10.24868/issn.2515-818x.2018.062.

Full text
Abstract:
With the ever tightening of budgets and legislation, new vessel builds are facing tough times. The future maritime industry requires more efficient vessels to minimise ship operational costs with cleaner technologies that meet stringent environment regulations, reduce greenhouse gas emissions, specifically carbon emissions. Emissions reduction continues to be high on the agenda for the marine industry, it is responsible for about 2.5 percent of global greenhouse emissions1 and is under great pressure to reduce its environmental impact. With pressure comes the opportunity to incentivize innovation, developments and implementation of energy efficient measures, both design and operational. Naval propulsion systems are no different from other industries, and the industry is exploring ways to optimise propulsion and electrical power generation systems architecture for better performance and efficiency. Electric technology plays a leading role. The paper will: Provide a brief overview about the hybrid propulsion concept, with key electrical, mechanical qualities and issues. Describe different designs configurations and performances of hybrid propulsion systems from demonstrated and operational systems in the commercial and naval world. Cover the lessons learnt in technologies and controls used on such systems. Examine future architectures including energy storage and explore the benefits and the flexibility these can bringto the hybrid propulsion sphere.
APA, Harvard, Vancouver, ISO, and other styles
10

Edman, Ulf, and Anders Hagerstedt. "The Aip Experience - The Operational Air Independent Propulsion In The Swedish Submarine Naecken." In Warship 91- Naval Submarines. RINA, 1991. http://dx.doi.org/10.3940/rina.warship.1991.24.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Propulsione navale"

1

OFFICE OF NAVAL RESEARCH ARLINGTON VA. Naval Research Reviews. Mixing Enchancement for Air-Breathing Propulsion. Non-Axisymmetric Jets Increase Mixing. Volume 44 and Volume 45. Fort Belvoir, VA: Defense Technical Information Center, January 1993. http://dx.doi.org/10.21236/ada268966.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Analysis of Recompression-Regeneration sCO 2 Combined Cycle Utilizing Marine Gas Turbine Exhaust Heat: Effect of Operating Parameters. SAE International, July 2022. http://dx.doi.org/10.4271/2022-01-5059.

Full text
Abstract:
Gas turbines are fast being explored to replace the existing steam or diesel-based power packs to propel marine transportation. Marine gas turbines have already come to power high-speed marine vessels transporting perishable goods as well as high-speed naval fleets. This article investigates the potential of gas turbine to be made hybrid with supercritical recompression-regeneration carbon dioxide (CO2) cycle drawing thermal energy from the exhaust of marine gas turbines. The recompression unit acts as the topping cycle and the regeneration unit acts as the bottoming cycle of the proposed combined supercritical CO2 (sCO2) cycle. The cycle has a maximum temperature of 530°C and supercritical pressure of 20 MPa. The proposed sCO2 powerplant is compact because of the smaller size of the turbomachinery, owing to the low specific volume of working fluid in the supercritical range. The proposed combined cycle is analyzed for different operating conditions including maximum temperature, minimum temperature, and cycle pressure ratio. The thermal efficiency of the proposed sCO2 cycle is 30.77% and efficiency of the hybrid cycle (including marine GT) is 58.17%, i.e., enhancement in thermal efficiency of the marine vessel power pack by 18.6%. Further the power output of the gas turbine-sCO2 hybrid cycle is enhanced by nearly 23.5% to 45.7 megawatts (MW). The second law of thermodynamic efficiency of the proposed combined cycle is close to 52.5%. The proposed hybrid gas turbine-sCO2 cycle has immense potential to replace the aging propulsion systems of existing marine vessels as the proposed power cycle is greener and more compact.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Propulsione navale' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography