Maglev and Aérotrain: Why and How Europe Killed Its Own High
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Unit VI Superconductivity JIT Nashik Contents
Unit VI Superconductivity JIT Nashik Contents 1 Superconductivity 1 1.1 Classification ............................................. 1 1.2 Elementary properties of superconductors ............................... 2 1.2.1 Zero electrical DC resistance ................................. 2 1.2.2 Superconducting phase transition ............................... 3 1.2.3 Meissner effect ........................................ 3 1.2.4 London moment ....................................... 4 1.3 History of superconductivity ...................................... 4 1.3.1 London theory ........................................ 5 1.3.2 Conventional theories (1950s) ................................ 5 1.3.3 Further history ........................................ 5 1.4 High-temperature superconductivity .................................. 6 1.5 Applications .............................................. 6 1.6 Nobel Prizes for superconductivity .................................. 7 1.7 See also ................................................ 7 1.8 References ............................................... 8 1.9 Further reading ............................................ 10 1.10 External links ............................................. 10 2 Meissner effect 11 2.1 Explanation .............................................. 11 2.2 Perfect diamagnetism ......................................... 12 2.3 Consequences ............................................. 12 2.4 Paradigm for the Higgs mechanism .................................. 12 2.5 See also ............................................... -
2017–2018 Annual Research Report
RESEARCH & PUBLIC HISTORY ANNUAL REPORT 2017–2018 FOREWORD FOREWORD SALLY MACDONALD Director, Science and Industry Museum, Manchester Welcome to our fourth Research and Public History Annual Report, covering the academic year 2017/18. This year saw the adoption of the Science Museum Group’s new Research Strategy, which sets the framework for our research activity for the coming five years. The Strategy (see pp xx) declares our bold ambition to be globally the most research-informed science museum group, so that research underpins most aspects of our work, from collections management through to exhibition development and the design of new galleries and digital resources. In order to do this, we’ve committed to supporting our colleagues across many teams to develop their research potential. And we want to build our research networks to support an even wider range of collaborations. Our conferences and workshops are vital for building such networks, and limbs, for example; another takes ABOVE: this year’s Report highlights several the form of an ‘in conversation’ Sally Macdonald Director, Science and Industry focused on specific topics of current between an archivist and artist, Museum, Manchester interest: for example, workshops on while yet another discusses the electricity to support Electricity: The challenges and opportunities of This year’s Report highlights the Spark Of Life exhibition at the Science collaborating across disciplines variety of their studies, emphasising and Industry Museum Manchester, and different ‘habits of mind’. the impact not only for our museums symposiums on Wounded as part of Our Spring Journal this year, guest- but for the partner institution and the Science Museum’s research for edited by Frank Trentmann of Birkbeck the students themselves. -
UNIVERSITY of CAMBRIDGE INTERNATIONAL EXAMINATIONS Cambridge International Level 3 Pre-U Certificate Principal Subject
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS Cambridge International Level 3 Pre-U Certificate Principal Subject PHYSICS 9792/02 Paper 2 Part A Written Paper May/June 2012 PRE-RELEASED MATERIAL The question in Section B of Paper 2 will relate to the subject matter in these extracts. You should read through this booklet before the examination. The extracts on the following pages are taken from a variety of sources. University of Cambridge International Examinations does not necessarily endorse the reasoning expressed by the original authors, some of whom may use unconventional Physics terminology and non-SI units. You are also encouraged to read around the topic, and to consider the issues raised, so that you can draw on all your knowledge of Physics when answering the questions. You will be provided with a copy of this booklet in the examination. This document consists of 8 printed pages. DC (LEO/JG) 51113/1 © UCLES 2012 [Turn over 2 Extract 1: How Maglev Trains Work If you’ve been to an airport lately, you’ve probably noticed that air travel is becoming more and more congested. Despite frequent delays, aeroplanes still provide the fastest way to travel hundreds or thousands of miles. Passenger air travel revolutionised the transport industry in the last century, letting people traverse great distances in a matter of hours instead of days or weeks. Fig. E1.1 The first commercial maglev line made its debut in December of 2003. The only alternatives to aeroplanes – feet, cars, buses, boats and conventional trains – are just too slow for today’s fast-paced society. -
Hyperloop, ¿El Transporte Del Futuro? Comparativa Y Análisis Dinámico
HYPERLOOP, ¿EL TRANSPORTE DEL FUTURO? Jorge Martínez García COMPARATIVA Y 29 de junio de 2020 Tutores: ANÁLISIS DINÁMICO María Dolores Gómez Pulido Roberto Revilla Angulo Trabajo Final de Máster ESCUELA TÉCNICA SUPERIOR DE INGENIEROS DE CAMINOS, CANALES Y PUERTOS UNIVERSIDAD POLITÉCNICA DE MADRID Máster Universitario en Ingeniería de Caminos, Canales, y Puertos Hyperloop, ¿el transporte del futuro? Comparativa y análisis dinámico Contenido Índice de Tablas ............................................................................................................................. 4 Índice de Figuras ............................................................................................................................ 5 1 Resumen ................................................................................................................................ 7 2 Agradecimientos .................................................................................................................... 8 3 Introducción .......................................................................................................................... 9 4 Estado del arte ..................................................................................................................... 10 4.1 Sistema de propulsión y suspensión ............................................................................ 12 4.2 Velocidad ..................................................................................................................... 15 4.3 Tamaño del -
MODERN TRENDS in TRACTION Mr
International Journal of Scientific & Engineering Research Volume 12, Issue 1, January-2021 908 ISSN 2229-5518 MODERN TRENDS IN TRACTION Mr. Ankit Aloni Abstract— The modern trend in the railway sector is the Maglev trains. Maglev, also called magnetic levitation train or maglev train, a floating vehi- cle for land transportation that's supported by either electromagnetic attraction or repulsion. The maglev transportation have very benefits such as high level of safety, no derailment, reliability, high speed, ecofriendly, low maintenance fees, energy efficient, the quietest transportation system, less space required, climbing grade and maneuverability, etc. This paper involves all the aspects, design, technology, applications, future uses of these trains. Index Terms— Electrodynamic suspension, Electromagnetic suspension, Inductrack, stability, power-use, magnetic induction —————————— —————————— 1 INTRODUCTION hat if you'll travel from NY to LA in only under seven hours without boarding a plane? It could be 2 HOW MAGLEV WORKS? Wpossible on a Maglev train. This idea was raised by a physics scientist in 1909 by Rob- "A Maglev train vehicle is only a case with magnets on the ert H. Goddard the American rocket scientist. After that a four corners," says Jesse Powell, the child of the Maglev de- British electrical engineer Eric Laithwaite developed the signer. It's a smidgen more unpredictable than that, however first full sized working model of linear motor induction af- the idea is basic. The magnets utilized are superconducting, ter that many scientist came and improved the technology. which implies that when they are cooled to under 450 degrees The world first commercial maglev system was a low- Fahrenheit under zero, they can create attractive fields up to speed maglev shuttle that ran between the airport terminal multiple times more grounded than customary electromag- of Birmingham international airport and Birmingham in- nets, enough to suspend and move a train. -
High-Speed Train Planning in France, Lessons from Mediterranean TGV-Line
World Academy of Science, Engineering and Technology International Journal of Humanities and Social Sciences Vol:3, No:6, 2009 High-Speed Train Planning in France, Lessons from Mediterranean TGV-Line Stéphanie Leheis priority large infrastructures projects, among which the East- Abstract—To fight against the economic crisis, French European LGV (2nd phase to Strasbourg) appears, with the Government, like many others in Europe, has decided to give a boost Bretagne - Pays de la Loire LGV (prolongation of the Atlantic to high-speed line projects. This paper explores the implementation LGV towards Nantes and Rennes), and the Southern Atlantic and decision-making process in TGV projects, their evolutions, Europe LGV (towards Bordeaux and Spain). The impact of especially since the Mediterranean TGV-line. This project was probably the most controversial, but paradoxically represents today a such measures which is accompanied by an enumeration of huge success for all the actors involved. corresponding funds raises the question always in debate of What kind of lessons we can learn from this experience? How to the link between transport investment and economic growth evaluate the impact of this project on TGV-line planning? How can [1]. we characterize this implementation and decision-making process If projects of high speed line are still a topical subject, it regards to the sustainability challenges? doesn't mind they are less controversial. From this point of The construction of Mediterranean TGV-line was the occasion to make several innovations: to introduce more dialog into the decision- view, the TGV Mediterranean, which connects Valence to making process, to take into account the environment, to introduce a Marseille, is an exemplary study case. -
Advanced Systems Advanced Technology
ADVANCED SYSTEMS a n d ADVANCED TECHNOLOGY A SUMMARY OF TEN YEARS OF ADVANCED RESEARCH AND DEVELOPMENT BY TH E FEDERAL RAILROAD ADMINISTRATION O c to b e r 1 , 1 9 7 7 Abstracted from Report FRA/ORD-7 7 / 2 7 by Office of Research and Development Federal Railroad Administration Department of Transportation Washington, D. C. 25 - Rsc D Management C o n t e n t s A d v a n c e d S y s t e m s Page Systems Engineering ........................ 1 Tracked Air Cushion Vehicles ......... 3 Component Research.............. 4 Tracked Levitated Research Vehicle..................................... 5 Prototype Tracked Air Cushion Vehicle...............-.................... 8 Magnetic Levitation....................... 10 Tube Vehicles .................................... 13 Multimodal........................................15 Suspended Vehicles ......................... 15 A d v a n c e d T e c h n o l o g y Page Linear Electric Motors ....................... 17 Linear Induction Motor Research Vehicle....................... 18 Mathematical Models................... 21 Single-sided Motors....................... 21 Guideways........................................22 Power Conditioning.........................23 Controls........................................... 26 Obstacle Detection...........................27 Communications.............................. 28 Appendix: Active FRA Programs a. Advanced Systems ....................... 29 A d v a n c e d S y s t e m s A question facing O H S G T in 1965 was: pose of extending the H S G T state-of-the- “H o w fast is high-speed ground transporta art review performed by MIT in 1965. The tion?” O H S G T researchers developed an systems engineers then derived a repre answer based on power requirements and sentative transportation system from each energy consumption. A plot of the power group, and m a d e detailed engineering required vs. -
WRAP 1&4 Front Front and Back.Indd
2 felix FRIDAY 09 DECEMBER 1949 Extracts from the first issue of Felix, published on the 9th of December, 1949 The need has been felt for some time for a frequently published journal to comment upon the affairs of the College whilst they are still topical, and to bring to the attention of its members the activities of Clubs and Societies of which people at present know little, and knowing little, tend to care even less. This is a function which clearly cannot be performed by THE PHOENIX, particularly since that estimable bird is now to appear only twice a year, and so FELIX has come to meet the need. We do not intend to encroach upon the literary field covered by THE PHOENIX; rather do we intend to be complementary to that journal, even if not always complimentary. Neither are we in any way connected with it, nor are we its offspring. (In any case, this unfortunate bird is presumably unable to produce any offspring, since only one bird exists at any one time, rising from the ashes of its predecessor. Perhaps this accounts for its doleful appearance). No, THE PHOENIX will remain an essentially literary magazine, whereas we shall content ourselves with providing a commentary upon events and personalities. The success or failure of this paper depends principally upon you, our readers. In the first place we depend upon you to produce many of our articles and reports, since our staff cannot themselves attend and report every College event. Secondly we depend upon you to maintain a lively correspondence in our columns. -
Veicoli Su Rotaia
Veicoli su rotaia Ing. Maurizio Fantini – Novembre 2014 . Veicoli su rotaia • La ferrovia (strada ferrata), sistema di trasporto terrestre a guida vincolata, esiste da quasi 190 anni: la prima in Inghilterra nel 1825 (in Italia nel 1839). • La rete ferroviaria mondiale ha oggi uno sviluppo di 1.300.000 km circa. • Bastano pochi dati per comprendere le peculiarità della ferrovia: la possibilità di trasportare 60.000 passeggeri all’ora per direzione (servizi urbani e suburbani) , di trasportare 1100 passeggeri a 300 km/h (collegamenti ad alta velocità), di effettuare convogli merci di oltre 30.000 t. Veicoli su rotaia • I maggiori vantaggi del trasporto su rotaia rispetto agli altri sistemi: - i bassi consumi energetici, grazie alle ridotte resistenze al moto; - il basso inquinamento; - la guida direzionale affidata alla stessa via (sistema di guida molto semplice rispetto a quello di altri sistemi guidati); - la possibilità di concentrare elevate potenze motrici; - la sicurezza , le ferrovie in particolare quelle europee, rappresentano il sistema di trasporto più sicuro. ** Secondo dati di fonte giapponese, l’energia necessaria per trasportare un passeggero per un km con un treno ad alta velocità (Shinkansen serie 700) è di 64 kcalorie, un terzo dell’energia necessaria a un autobus di linea, circa un sesto di quella assorbita da un aereo di recente generazione, un decimo di quella necessaria ad un’auto privata. ** Per quanto riguarda l’emissione di CO2 per pass.-km, rispetto al treno AV, l’autobus è 7 volte più inquinante, l’aereo 10 volte e l’auto privata oltre 16 volte. Veicoli su rotaia • Nella definizione di un sistema di trasporto è la capacità di traffico, in termini di passeggeri (passeggeri-km) e/o di merci (tonnellate-km) che determina la sua convenienza economica; occorre tuttavia tenere presente anche altri fattori, quali l’impatto ambientale, che possono orientare la scelta sul sistema ferroviario. -
Linear Motor-Powered Transportation: History, Present
INVITED PAPER Linear Motor-Powered Transportation: History, Present Status, and Future Outlook This review explains the operation of various types of linear motors used in maglev systems, discusses and compares their suitability, and describes the scope of worldwide maglev developments. By Rolf Hellinger and Peter Mnich ABSTRACT | An outline of the different fields of application for II. REASONS FOR LINEAR linear motors in transportation is given. The different types of MOTOR APPLICATION IN linear motors are described and compared. The current status TRANSPORTATION SYSTEMS of the different linear motors used in the transportation sector Fresh impetus for worldwide research into linear motor- is analyzed. Finally, a look at worldwide activities and future powered transportation systems came from high-speed prospects is presented. maglev systems, on account of the need to develop not only a contactless levitation system but also a contact-free KEYWORDS | Electrodynamic levitation; electromagnetic levi- propulsion system [1]. Linear motors have the capability to tation; linear induction motor; linear motor; linear synchronous produce a direct thrust without any conversion of rota- motor; long stator; short stator; transportation sector tional energy into translational energy. This is a major advantage for transportation systems, because the thrust is I. HISTORY independent of the adhesion factor between wheel and The history of the linear motor can be traced back at least as rail. On the other hand, linear motors excite a normal far as the early 1840s, to the work of Charles Wheatstone in (orthogonal) force (Fy or Fz), which can be used to support Great Britain. In 1889, the Americans Schuyler S. -
Robust Linear and Non-Linear Control of Magnetically Levitated Systems
Robust linear and non-linear control of magnetically levitated systems Thesis Submitted to The University of Wales for The Degree of Doctor of Philosophy Alexandre Nikolov Pechev Institute of Magnetics, Electronics and Electrical Systems School of Engineering Cardiff University September, 2004 UMI Number: U584675 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. Dissertation Publishing UMI U584675 Published by ProQuest LLC 2013. Copyright in the Dissertation held by the Author. Microform Edition © ProQuest LLC. All rights reserved. This work is protected against unauthorized copying under Title 17, United States Code. ProQuest LLC 789 East Eisenhower Parkway P.O. Box 1346 Ann Arbor, Ml 48106-1346 Declaration This work has not previously been accepted in substance for any degree and is not being concurrently submitted in candidature for any degree. Signed (c;12 '' ’ate) D ate........ This thesis is the result of my own investigations, except where otherwise stated. Other sources are acknowledged bv footnotes giving explicit references. A bibliography is appended. Signei Date I hereby give consent for my thesis, if accepted, to be available for photocopying and for inter-library loan, and for the title and summary to be made available to outside organisa tions. Signed Date Acknowledgements I would like* to express my gratitude to Professor P.K. Sinha, Emeritus Professor at the University of Heading, for his financial and academic support during the course of this work. -
Maglev (Transport) 1 Maglev (Transport)
Maglev (transport) 1 Maglev (transport) Maglev, or magnetic levitation, is a system of transportation that suspends, guides and propels vehicles, predominantly trains, using magnetic levitation from a very large number of magnets for lift and propulsion. This method has the potential to be faster, quieter and smoother than wheeled mass transit systems. The power needed for levitation is usually not a particularly large percentage of the overall consumption; most of the power used is needed to overcome air drag, as with any other high speed train. The highest recorded speed of a Maglev train is 581 kilometres per JR-Maglev at Yamanashi, Japan test track in hour (361 mph), achieved in Japan in 2003, 6 kilometres per hour November, 2005. 581 km/h. Guinness World (3.7 mph) faster than the conventional TGV speed record. Records authorization. The first commercial Maglev "people-mover" was officially opened in 1984 in Birmingham, England. It operated on an elevated 600-metre (2000 ft) section of monorail track between Birmingham International Airport and Birmingham International railway station, running at speeds up to 42 km/h (26 mph); the system was eventually closed in 1995 due to reliability and design problems. Perhaps the most well known implementation of high-speed maglev technology currently operating commercially is the IOS (initial operating segment) demonstration line of the German-built Transrapid Transrapid 09 at the Emsland test facility in train in Shanghai, China that transports people 30 km (18.6 miles) to Germany the airport in just 7 minutes 20 seconds, achieving a top speed of 431 km/h (268 mph), averaging 250 km/h (160 mph).