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Contribution A La Definition De Moteurs A Aimants Permanents Pour Un Vehicule Electrique Hybride Routier
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Book Synopsis Contribution à la définition de moteurs à aimants permanents pour un véhicule électrique hybride routier by : Carole Henaux
Download or read book Contribution à la définition de moteurs à aimants permanents pour un véhicule électrique hybride routier written by Carole Henaux and published by . This book was released on 1996 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL CONCERNE LA DEFINITION D'UNE CHAINE DE PROPULSION A AIMANTS PERMANENTS POUR UN VEHICULE ELECTRIQUE ROUTIER A TURBINE, DE TYPE HYBRIDE SERIE. LE CAHIER DES CHARGES COMPORTE DE NOMBREUSES MISSIONS DE CIRCULATION ET SON ANALYSE MET EN EVIDENCE LA DIFFICULTE A DEFINIR UN REGIME NOMINAL. L'ETUDE A CONSISTE A DEVELOPPER ET EXPLOITER UN OUTIL INFORMATIQUE D'AIDE A LA CONCEPTION DE CETTE CHAINE DE TRACTION SUIVANT UNE METHODOLOGIE QUI COMPORTE LA DEFINITION DES GRANDEURS DIMENSIONNANTES DE L'ACTIONNEUR, SON DIMENSIONNEMENT ET SA CARACTERISATION, ET L'EXPERIMENTATION SIMULEE DE SON COMPORTEMENT ELECTRIQUE ET THERMIQUE EN FONCTIONNEMENT. UN TRAITEMENT SPECIFIQUE DE L'ENSEMBLE DES MISSIONS DU VEHICULE PERMET TOUT D'ABORD DE DEFINIR LES GRANDEURS DIMENSIONNANTES. PUIS LE DIMENSIONNEMENT DE DIFFERENTES STRUCTURES DE MACHINE A AIMANTS PERMANENTS EST EFFECTUE PAR UN PREMIER MODULE BASE SUR DES MODELES ANALYTIQUES. LA STRUCTURE AINSI DIMENSIONNEE EST CARACTERISEE SUR LE PLAN ELECTROMAGNETIQUE AU MOYEN D'UN DEUXIEME MODULE, BASE SUR LE CALCUL DU CHAMP PAR ELEMENTS FINIS, CHAINE AU PREMIER PAR LE BIAIS D'UNE BIBLIOTHEQUE DE STRUCTURES GENERIQUES DE MACHINES A AIMANTS PERMANENTS. IL INCLUT UN MODULE AUXILLIAIRE DE VARIATION PARAMETRIQUE BASE SUR LA METHODE DES PLANS D'EXPERIENCE QUI PERMET D'ELABORER UN MODELE POLYNOMINAL DANS LE DOMAINE DE VARIATION. UN TROISIEME MODULE REALISE LA SIMULATION DU COMPORTEMENT ELECTRIQUE DE L'ACTIONNEUR SUR L'ENSEMBLE DES MISSIONS DE CIRCULATION AVEC UNE STRATEGIE DE COMMANDE A COUPLE MAXIMAL COMPLETEE PAR UNE STRATEGIE DE DEMAGNETISATION POUR ATTEINDRE LA ZONE DES HAUTES VITESSES. ENFIN UN QUATRIEME MODULE SIMULE LE COMPORTEMENT THERMIQUE DES MOTEURS AU COURS DES FONCTIONNEMENTS. CELUI-CI REPOSE SUR DEUX MODELES THERMIQUES GENERIQUES SPECIALEMENT DEVELOPPES ET VALIDES EXPERIMENTALEMENT PAR LA METHODE DES PLANS D'EXPERIENCE, SUR DES MOTEURS REPRESENTATIFS DES STRUCTURES CONSIDEREES, A ROTOR INTERIEUR OU EXTERIEUR. L'EXPLOITATION DE CET OUTIL D'AIDE A LA CONCEPTION PERMET FINALEMENT DE DEGAGER DES CONCLUSIONS SUR LES CONFIGURATIONS DE CHAINES DE TRACTION LES PLUS FAVORABLES EN TERMES DE NOMBRE DE MOTEURS, RAPPORT DE REDUCTION, BOITE DE VITESSES, SUR LES STRUCTURES DE MACHINES LES MIEUX ADAPTEES PARMI CELLES CONSIDEREES, ET SUR LES PROPRIETES ET CRITERES DE DIMENSIONNEMENT A PRIVILEGIER DANS CETTE APPLICATION
Book Synopsis Contribution à la conception d'un moteur à aimants permanents du type jante et à son alimentation by : Li Kong
Download or read book Contribution à la conception d'un moteur à aimants permanents du type jante et à son alimentation written by Li Kong and published by . This book was released on 1994 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of this dissertation is the study of a pennanent magnet brushless motor and its feed.ing inverter in the application of an electric vehicle. The different systems of electric vehicles are reviewed in the first chapter. The solution retained is an in-wheel brushless motor with pennanent magnet NdFeB. The points focused in designing a brushless motor concem the minimisation of the harmonics and the temperature influences on the magnetic characteristics of the magnet NdFeB and, therefore, on the motor. In chapter 2, the magnets are divided in some blocks and are shifted up each other along the motor axis. Based on the static torque curve, the real dimensions of the magnets and the slots and the saturation effect have been taken into account in our study. In regular shifting, the best total shifting angle does not correspond to a tooth step. The irregular shifting is approved particularly efficient even in the case of3 magnet blocks. In the third chapter, the entire B(H) curves of NdFeB is described, for all temperatures, by means of the double variables Chebychev polynomial series. These expressions are integrated in the package Flux-Expert for determining the magnetic field of the machine (in 2D) by finite elements method. This motor is especially sensible to the temperature and the armature reaction does not change greatly the working point of magnet. The two stages DC AC-AC supply inverter allows to have a soft switching in the drive system and, therefore, a limited electromagnetic pollution in the vehicle. The behaviour of this inverter is simulated, in chapter 5, by means of a program adapted from the software A TOSEC. The simulation results show that themodulation frequency for the first stage of the inverter should be in the order of 20kHz for a good current regulation. The simulation is valid for a lspeed up to 75% of its maximum under the rated eurrent and the current control remains efficient when the current is shifted from the electromagnetic force by an angle and even with the presence of toothharmonies
Book Synopsis COMPARAISON DE MACHINES A AIMANTS PERMANENTS POUR LA TRACTION DE VEHICULES ELECTRIQUES ET HYBRIDES by : ARMANDO.. FONSECA
Download or read book COMPARAISON DE MACHINES A AIMANTS PERMANENTS POUR LA TRACTION DE VEHICULES ELECTRIQUES ET HYBRIDES written by ARMANDO.. FONSECA and published by . This book was released on 2000 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL SE PLACE DANS LE CONTEXTE DE L'UTILISATION DE MACHINES A AIMANTS PERMANENTS DANS LES VEHICULES HYBRIDES OU ELECTRIQUES. UN MODELE ANALYTIQUE, QUI PREND EN COMPTE LES EFFETS DE LA NON LINEARITE DU CIRCUIT MAGNETIQUE, PERMET D'OBTENIR TOUTES LES PERTES QUEL QUE SOIT LE POINT DE FONCTIONNEMENT DE LA MACHINE. DES CARTES D'ISORENDEMENT DANS LE PLAN COUPLE-VITESSE PEUVENT ETRE TRACEES. CE MODELE A ENSUITE ETE UTILISE POUR ETUDIER DES VARIANTES D'UNE MACHINE SYNCHRONE A AIMANTS. DES COMPARAISONS DE CONSOMMATION SUR CYCLES DE ROUTE ONT ETE EFFECTUEES SUR CES MACHINES, AINSI QUE L'ETUDE D'AUTRES STRUCTURES DE ROTOR A AIMANTS. UN SECOND MODELE A ETE DEVELOPPE POUR REPONDRE A UN BESOIN DE CONCEPTION. IL A SERVI POUR UNE OPTIMISATION SOUS CONTRAINTES DANS UN OBJECTIF DE REDUCTION DE COUT ET DE VOLUME.
Book Synopsis Contribution à la conception d'un entraînement basé sur une machine à aimants permanents fonctionnant sans capteur sur une large plage de vitesse by : Franck Chabot
Download or read book Contribution à la conception d'un entraînement basé sur une machine à aimants permanents fonctionnant sans capteur sur une large plage de vitesse written by Franck Chabot and published by . This book was released on 2000 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans la première partie du mémoire, l'auteur étudie les différentes stratégies de contrôle de la machine à aimants permanents, utilisables pour parvenir à un fonctionnement à couple imposé dans une large plage de vitesse. Il propose notamment des stratégies originales basées sur les techniques d'optimisation. Dans la deuxième partie, il étudie les problèmes induits par la simplification et/ou la suppression du capteur de position du rotor de la machine en considérant la charge particulière que constitue un véhicule automobile. Il présente et analyse différentes méthodes pour résoudre ce problème sur toute la plage de vitesse y compris le démarrage. L'étude est menée essentiellement par simulation mais certains aspects du problème font l'objet de validations expérimentales sur un dispositif existant. Il précise également le domaine de validité de ces différentes méthodes ainsi que leur adéquation aux moyens disponibles pour la mise en oeuvre. Dans la dernière partie, après avoir analysé le cahier des charges correspondant à la propulsion d'un véhicule automobile électrique, l'auteur propose une méthode systématique de dimensionnement des machines à aimants devant répondre à ce cahier des charges. Cette méthode, où interviennent notamment des caractérisations de la machine par schémas magnétiques équivalents et par calcul du champ, prend aussi en compte les éléments relatifs à la commande, issus des analyses des parties précédentes. La procédure est validée sur une machine existante et plusieurs autres solutions, qui se distinguent par le nombre de pôles où la structure électromagnétique sont proposées.
Book Synopsis Comparaisons théorique et expérimentale de machines à aimants permanents pour la traction de véhicules électriques by : Fouad Charih
Download or read book Comparaisons théorique et expérimentale de machines à aimants permanents pour la traction de véhicules électriques written by Fouad Charih and published by . This book was released on 2016 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le travail de thèse s'inscrit dans le cadre du projet TRAX. Il s'agit là du développement de moteurs électriques destinés à la traction des petits véhicules électriques urbains. Les caractéristiques clés d'une machine électrique pour une application de traction sont le couple, le rendement, la fiabilité, l'encombrement et la plage de vitesse à puissance maximale (dé-fluxage). Les machines électriques à aimants permanents répondent à ces exigences. C'est pourquoi ce travail de thèse s'est intéressé à l'étude des performances de machines à aimants permanents en proposant une étude comparative. Un état de l'art basé sur l'étude des brevets des machines électriques dans les applications automobiles est réalisé. Une description des dernières avancées des moteurs électriques principalement des structures à aimants permanents est fournit. Nous avons modélisé une première machine avec une méthode ana-lytique simplifiée basée sur la résolution des équations de Maxwell en 2D. Cette méthode est confrontée à une méthode numérique. Trois nouvelles machines sont définies à partir de la première en modifiant la configuration du rotor. La comparaison de quatre structures à aimants permanents est réalisée par des modèles numériques. Les performances à vide et en charge ainsi que le calcul des inductances dans l'axe direct et en quadrature sont évaluées. Les résultats théoriques sont comparés aux essais expérimentaux.
Book Synopsis Innovate Bristol by : Sven Boermeester
Download or read book Innovate Bristol written by Sven Boermeester and published by . This book was released on 2019-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.
Book Synopsis The Science of metals by : Zay Jeffries
Download or read book The Science of metals written by Zay Jeffries and published by . This book was released on 1924 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Creating Futures written by Michel Godet and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Watsuji Tetsuro's Rinrigaku by : Tetsur? Watsuji
Download or read book Watsuji Tetsuro's Rinrigaku written by Tetsur? Watsuji and published by SUNY Press. This book was released on 1996-01-01 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Watsuji Tetsuro's Rinrigaku (literally, the principles that allow us to live in friendly community) has been regarded as the definitive study of Japanese ethics for half a century. In Japan, ethics is the study of human being or ningen. As an ethical being, one negates individuality by abandoning one's independence from others. This selflessness is the true meaning of goodness.
Book Synopsis Talk about Cinema by : Jean-Baptiste Thoret
Download or read book Talk about Cinema written by Jean-Baptiste Thoret and published by Flammarion-Pere Castor. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: From classicism to comedy, Kubrick to the Coen Brothers, this practical and instructive guide offers a straightforward approach to film in an accessible format: a perfect read for novices and experts alike. A fresh, engaging, and beautifully illustrated volume, Talk About Cinema is the ideal companion for those looking to gain a deeper understanding of cinema today. The main genres of contemporary cinema are clearly defined and exemplified, and chapters on major dates, turning points, and "firsts" since the turn of the twentieth century allow the reader to contextualize different cinematic movements. From Postmodernism and Expressionism to Teen Movies, Westerns, and Science Fiction, all the major trends and styles of recent times are explored and provide a detailed picture of the contemporary cinematic landscape. The portraits of thirty eminent contemporary filmmakers offer valuable insight into the creative and stylistic processes of some of the greatest names in world cinema, while a chapter on twenty seminal works from the last century details those films that have proved inspirational in shaping cinema as we know it today, such as The Twilight Zone, Scarface, and Night of the Living Dead. Hundreds of screenshots and original photographs of legendary actors and directors on set and on screen provide snapshots of their glamorous world, and an easy-to-use glossary ensures that the reader is never overwhelmed by jargon. If you want to understand and discuss film-related topics, Talk About Cinema effortlessly synthesizes a wealth of pertinent facts and ideas into a fun, didactic, and readable volume.
Book Synopsis Sustainability, Eco-efficiency, and Conservation in Transportation Infrastructure Asset Management by : Massimo Losa
Download or read book Sustainability, Eco-efficiency, and Conservation in Transportation Infrastructure Asset Management written by Massimo Losa and published by CRC Press. This book was released on 2014-04-28 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: Worldwide there is a growing interest in efficient planning and the design, construction and maintenance of transportation facilities and infrastructure assets. The 3rd International Conference on Transportation Infrastructure ICTI 2014 (Pisa, April 22-25, 2014) contains contributions on sustainable development and preservation of transportation infrastructure assets, with a focus on eco-efficient and cost-effective measures. Sustainability, Eco-efficiency and Conservation in Transportation Infrastructure Asset Management includes a selection of peer reviewed papers on a wide variety of topics: • Advanced modeling tools (LCA, LCC, BCA, performance prediction,design tools and systems) • Data management (monitoring and evaluation) • Emerging technologies and equipments • Innovative strategies and practices • Environmental sustainability issues • Eco-friendly design and materials • Re-use or recycling of resources • Pavements, tracks, and structures • Case studies Sustainability, Eco-efficiency and Conservation in Transportation Infrastructure Asset Management will be particularly of interest to academics, researchers, and practitioners involved in sustainable development and maintenance of transportation infrastructure assets.
Book Synopsis Advanced Computational Engineering and Experimenting by : Andreas Öchsner
Download or read book Advanced Computational Engineering and Experimenting written by Andreas Öchsner and published by Trans Tech Publications. This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters CPCI-S (WoS).The goal of this special collection was to provide an unique opportunity to exchange information, to present the latest results as well as to review relevant issues concerning contemporary research in mechanical engineering. Young scientists in particular were encouraged to submit their latest research results, and this is reflected in the final result.
Book Synopsis The Ladybird Illustrated by : D H Lawrence
Download or read book The Ladybird Illustrated written by D H Lawrence and published by . This book was released on 2020-11-09 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Ladybird is a long tale or novella by D. H. Lawrence. It was first drafted in 1915 as a short story entitled The Thimble. Lawrence rewrote and extended it under a new title in December 1921 and sent the final version to his English agent on 9 January 1922. It was collected with two other tales, The Captain's Doll and The Fox, and the three novellas were then published in London by Martin Secker in March 1923 under the title The Ladybird and in New York by Thomas Seltzer as The Captain's Doll in April 1923."
Download or read book My Life written by Golda Meir and published by Weidenfeld & Nicolson. This book was released on 2023-02-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Blockbusting film GOLDA starring Helen Mirren is out now 'The gripping memoir of a remarkable woman who rose to the top in a man's world. A compelling political story of courage and struggle, power and leadership, war and crisis - and the making of Israel. A classic of 20th century history' Simon Sebag Montefiore, author of JERUSALEM: THE BIOGRAPHY 'A remarkable, almost incredible personal history ... stimulating and fascinating' IRISH TIMES 'A rare and wholly unforgettable work' SATURDAY REVIEW WITH A NEW INTRODUCTION BY JULIA NEUBERGER Golda Meir was without doubt one of the most incredible women of her - and any - time. Born in 1898 in Kyiv, she was the daughter of an impoverished carpenter - and became the first (and only) female Prime Minister of Israel. Meir's earliest memory is of her father boarding up the front door in response to rumours of an imminent pogrom. The family emigrated to the US and for a while Meir lived with her sister, where she was exposed to debates on Zionism, women's suffrage, literature and socialism. She became a teacher, and after her marriage emigrated again to Palestine, settling on a kibbutz. Always politically active, she became Israel's first envoy to Moscow; was promoted to Foreign Minister and ultimately elected as Prime Minister, leader of Israel. In her autobiography she wrote: 'To me, being Jewish means and has always meant being proud to be part of a people that has maintained its distinct identity for more than 2,000 years, with all the pain and torment that has been inflicted upon it'
Book Synopsis Cambridge Yearbook of European Legal Studies, Vol 13, 2010-2011 by : Catherine Barnard
Download or read book Cambridge Yearbook of European Legal Studies, Vol 13, 2010-2011 written by Catherine Barnard and published by Bloomsbury Publishing. This book was released on 2011-12-15 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cambridge Yearbook of European Legal Studies provides a forum for the scrutiny of significant issues in EU Law, the law of the European Convention on Human Rights, and Comparative Law with a 'European' dimension, and particularly those issues which have come to the fore during the year preceding publication. The contributions appearing in the collection are commissioned by the Centre for European Legal Studies (CELS) Cambridge, a research centre in the Law Faculty of the University of Cambridge specialising in European legal issues. The papers presented are at the cutting edge of the fields which they address, and reflect the views of recognised experts drawn from the University world, legal practice, and the institutions of both the EU and its Member States. Inclusion of the comparative dimension brings a fresh perspective to the study of European law, and highlights the effects of globalisation of the law more generally, and the resulting cross fertilisation of norms and ideas that has occurred among previously sovereign and separate legal orders. The Cambridge Yearbook of European Legal Studies is an invaluable resource for those wishing to keep pace with legal developments in the fast moving world of European integration. INDIVIDUAL CHAPTERS Please click on the link below to purchase individual chapters from Volume 13 through Ingenta Connect: www.ingentaconnect.com SUBSCRIPTION TO SERIES To place an annual online subscription or a print standing order through Hart Publishing please click on the link below. Please note that any customers who have a standing order for the printed volumes will now be entitled to free online access. www.hartjournals.co.uk/cyels/subs Editorial Advisory Board: Albertina Albors-Llorens, John Bell, Alan Dashwood, Simon Deakin, David Feldman, Richard Fentiman, Angus Johnston, John Spencer Founding Editors: Alan Dashwood and Angela Ward Ius Commune Prize 2012 Alexandre Saydé wrote Chapter 15 in this volume entitled: 'One Law, Two Competitions: An Enquiry into the Contradictions of Free Movement Law' and we are delighted to announce that he has been awarded the Ius Commune Prize 2012.
Book Synopsis A Wife in Musashino by : Ooka Shohei
Download or read book A Wife in Musashino written by Ooka Shohei and published by U of M Center for Japanese Studies. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A rich and subtle portrait of postwar Japanese family and social life
Book Synopsis Notes on the Minor Prophets by : Henry Allan Ironside
Download or read book Notes on the Minor Prophets written by Henry Allan Ironside and published by . This book was released on 1955 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
