These fields lift the train a small distance above the tracks and move the train. In maglev trains, the power to propel the train is provided by the magnetic fields created by the electric coils kept in the guidance tracks which are added together to provide. Magnetic levitation is a technology that uses magnetic fields to make the train move. If a maglev wants to use this force to levitate, it needs a strong magnetic field in its wagons. Instead of using fossil fuels, the magnetic field created by the electrified coils in the guideway walls and the track combine to propel the train. Mar 07, 2017 for the love of physics walter lewin may 16, 2011 duration. Dispelling the top ten myths of maglev by laurence e. Maglev trains short form of magnetic levitation are a very fast type of highspeed rail. When maglev trains are compared to regular trains it shows that they use much less energy and produce less co2 emissions. The inductrack system isfail safe in the event of a power failure.
Maglev trains eddie lim 20 lim zheng xiang 21 anthony low 24 class. Pdf this paper presents technology aspects and choices relative to. A maglev system uses magnetic fields to levitate and accelerate a vehicle along a track. Maglev can create frictionless, efficient, faroutsounding technologies.
This was the first major collision involving a maglev train, and. Vol 4, no 3 2018, maglev freight one possible path forward in the. Worlds fastest trains maglev capable of 3,500 kmh youtube. For the love of physics walter lewin may 16, 2011 duration. Maglev trains operating at slower speeds are currently in use in china and south korea.
For example the shanghai transrapid line travels at an average speed of. The magnetic levitation technology can be used as an efficient technology in. With no wheels and only one track, maglev trains would poohpooh bad weather, the wrong type of leaves on the line, or a points failure at cricklewood. If you continue browsing the site, you agree to the use of cookies on this website. The big difference between a maglev train and a conventional train is that maglev trains do not have an engine at least not the kind of engine used to pull typical train cars along steel tracks.
Maglev transportation system between new york and washington d. Simple magnetic levitation train seminar report pdf ppt download the answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. Optimizing the controller design to guide the motion of a maglev train. A handful of maglev trains already exist in asia and europe, and several new projects may be in the works. Transrapid maglev consumes less energy while providing the same output as highspeed railroads. Instead of using fossil fuels, the magnetic field created by the electrified coils in the. Construction of the yamanashi maglev test line began in 1990. The name maglev is derived from magnetic levitation. Magnetic levitation maglev is an innovative transportation technology. This speed is twice as fast as a conventional commuter train and. Sep 08, 2010 maglev trains eddie lim 20 lim zheng xiang 21 anthony low 24 class. Japan repeats history with recordbreaking maglev train. Magnetically levitated maglev trains differ from conventional trains in that.
Electromagnets and superconducting magnets have allowed us to create a magnetic levitation train nicknamed maglev that floats on the track instead of being directly on it. It is sometimes said to be the first fundamental innovation in the field of railroad technology since the invention of the railway. The maglev track allows the train to float above the track through the use of repelling magnets. In these locations, maglev trains are functional to the public. The principle of magnetic levitation has been known for over 100 years, when american scientists robert goddard and emile bachelet first conceived of frictionless trains. Its magnetic fields are harmful to passengers in shanghai, expansion plans for the airportconnector maglev were put on hold after citizen protests in 2007 voiced concerns about maglevs perceived noise see next topic and magneticfield emissions.
Similar systems are in use today as highspeed trains and some of the newer, radicalride roller coasters. Germanys maglev line, transrapid, is rather infamously known for its collision in 2006 that killed 25 people. Jun 14, 2016 maglev short for magnetic levitation trains can trace their roots to technology pioneered at brookhaven national laboratory. Linimo tobu kyuryo line, japan shanghai maglev train daejon, south korea testing tracks conducting research and development can. Japan repeats history with recordbreaking maglev train cnn. Maglev train, also called magnetic levitation train or maglev, a floating vehicle for land transportation that is supported by either electromagnetic attraction or repulsion. Maglev trains were conceptualized during the early 1900s by american professor and inventor robert goddard and frenchborn american engineer emile bachelet and have been. Apr 21, 2015 its a bird its a plane its an insanely fast japanese bullet train. Maglev trains move more smoothly and somewhat more quietly than wheeled mass transit systems. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. We could use normal magnets, but their magnetic power is limited. The worlds first commercial maglev system was a lowspeed maglev shuttle that ran between the airport terminal of birmingham international airport and the nearby birmingham international railway station between 1984 and 1995.
The engine used for conventional trains provide power to pull a chain of compartments along steel tracks. The scmaglev superconducting maglev, formerly called the mlu is a magnetic levitation railway system developed by central japan railway company jr central and the railway technical research institute on 21 april 2015, a manned sevencar l0 series scmaglev train reached a speed of 603 kmh 375 mph, less than a week after the same train clocked 590 kmh 370 mph, breaking the previous. Both the guide way as well as the trains undercarriage also have magnets. Maglev trains are therefore quieter and smoother than conventional trains and have the potential for much higher speeds. This lack of friction means that they can reach higher speeds than conventional trains. But though magneticallylevitated trains have been the focus of much of. We feel pleased to present our formal report on maglev trains. Feb 10, 2008 watch the entire video before commenting. Simple magnetic levitation train seminar reportpdf ppt download. The goal of the magnetic levitation train maglev project is to develop a small scale magnetic levitation train based on inductrack technology developed by dr. The result is a transport system which can regularly attain much higher speeds than more conventional rail systems. Thus, maglev has low maintenance on overall system lifespan than traditional rail systems.
Today you will reimagine the way trains work and the potential they may have as a future form of public transportation. Trains based on the technique used for leviation the are two types of maglev trains 1. Maglev trains are pulled forward using polarities that attract each other at the front of the train. T railway technology today 12 edited by kanji wako. Maglev derived from magnetic levitation is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track, and another set to move the elevated train ahead, taking advantage of the lack of friction. Highspeed maglev trains promise dramatic improvements for human travel if widespread adoption occurs. The magnetized coil running along the track, called a guideway, repels the large magnets on the train s undercarriage, allowing the train to levitate between 0. Maglev train transportation systems and technology. In general, maglev trains move more smoothly and somewhat more quietly than wheeled mass transit systems. The engine for maglev trains is rather inconspicuous.
Maglevs eliminate a key source of frictionthat of train wheels on the railsalthough they must still overcome air resistance. The electromagnetic force is used to counteract the effects of the gravitational force. Its track length was 600 m 2,000 ft, and trains levitated at an altitude of 15 mm 0. The simplicity of the inductrack should make it substantially less expensive than the present eds or ems maglev trains.
At these locations, drivers in merge lanes or exit ramps may be startled by the sudden and unexpected sound of the maglevs passage, directly overhead, along its elevated track. Simple magnetic levitation train seminar reportpdf ppt. Basic principle of maglev trains maglev trains have to perform the following functions to operate in high speeds 1. A regular train at 125 mph uses 29 watthours per km compared to maglev train, which only uses 22 watthours per km. Simple magnetic levitation train seminar reportpdf ppt download the answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. Instead of using fossil fuels, the magnetic field created by the electrified coils in the guide way walls and the track combine to propel the train 3. Maglev systems have been built for decades, and though they started slow, some of the latest generation trains are breaking speed records. Mapping the noise and vibration nuisance of the proposed. At present maglev technology has produced trains that can travel in excess of 500 km 310 miles per hour. Magnetic levitation is a highly advanced technology. Japans mlx01 clocked in at 361 mph in 2003the highest speed yetfor a maglev train. A separate study of the maglev transportation option, combining regional.
A high speed maglev train uses noncontact magnetic levitation, guidance and propulsion systems and has no wheels, axles and transmission. Maglev, or magnetic levitation, trains hover over a magnetic track on a cushion formed by two magnets opposing each other, which significantly reduces friction. Combine multiple words with or to find articles containing either. Maglev trains are therefore quieter and smoother than conventional trains, and have the potential for much higher speeds. Mlx01 trains were tested there from 1997 to fall 2011, when the facility was closed to extend the line to 42. In addition to the higher cost, maglev trains have another major disadvantage. Maglev trains already operating at slower speeds in shanghai and changsha, in china, and incheon, in south korea use magnetic repulsion both to levitate the train up from the ground, which. May 29, 2018 with no wheels and only one track, maglev trains would poohpooh bad weather, the wrong type of leaves on the line, or a points failure at cricklewood. Maglev trains use electromagnets to lift the whole train into the air a short distance. Maglev trains do not need engines like conventional trains. The shanghai maglev appears to be the only true commercial maglev train.
Richard post from lawrence livermore national labs llnl. The most efficient way to produce the most powerful magnetic field we know of today, with a reasonable energy cost, is the use of superconducting coils, as in mris. The big difference between a maglev train and a conventional train is that maglev trains do not have an engine. A second train set was completed at the end of 1997, making it possible to conduct various tests with two trains, such as one train passing a stationary train or a train moving slowly in the same direction, or two trains travelling in opposite directions at high speed. This project is a continuation of work done by paul friend in 2004. In maglev trains, the power to propel the train is provided by the magnetic fields created by the electric coils kept in the guidance tracks which are added together to provide huge power. These trains follow magnetic guiderails instead of conventional rails. Any two trains traveling the same route cannot catch up and crash into one another because theyre all being powered to move at the same speed. Prashant zanwar university of central florida maglev. The track along which the train moves is called the guide way.
Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can compete favorably with highspeed rail and airplanes. The current train system is not a great alternative either. Mar 21, 2012 a handful of maglev trains already exist in asia and europe, and several new projects may be in the works. An electromagnetic suspension ems maglev train uses. Maglev train capable of 3,500 kmh theoretically if inside a vacuum tunnel high speed magnetic levitation train. With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both lift and thrust. These classes have emerged from the differences in system engineering for. Similarly, traditional train derailments that occur because of cornering too quickly cant happen with maglev. Its a bird its a plane its an insanely fast japanese bullet train. James powell and gordon danby of brookhaven received the first patent for a magnetically levitated train design in the late 1960s.
Before joining kyusyu university, he served as an assistant researcher at the. Since the invention of steampowered trains in the 1800s, trains have been the. As the train travels, the electromagnets at the back switch the direction of the spin so that they create a magnetic field that pushes the train forward. These trains are faster than virgin pendolinos, currently the fastest trains in the uk with top speeds up around 125mph. At a 50foot distance, a 300mph maglev train has a 97 dba equivalent sound level that rapidly goes from quiet to maximum loudness in second or two. Maglev trains seminar report,ppt,pdf,doc,presentation. T railway technology today 12 edited by kanji wako magnetic. The maglev project consists of two construction phases. Imagine a train that can travel incredibly fast, yet be safe and consume very little energy from fossil fuel sourcesor none at all. The magnetic levitation maglev train is a kind of promising transportation system that replaces wheels by electromagnets and levitates on the guideway via noncontact electromagnetic force.
Learn about the maglev track and see a diagram of a magelev track. The report focuses on the technology empowering the highly successful transportation method of maglev trains, and their advantages. Maglev trains seminar report,ppt,pdf,doc,presentation,free. With the maglev, a vehicle is levitated a short distance away from a guideway by using magnets to create both lift and thrust. Maglev systems use highstrength electromagnets to lift a vehicle a few inches above a track and then propel it forward with high acceleration. Maglev train simple english wikipedia, the free encyclopedia. Second, the maglev corridors required right of way can be for a double guideway 40 feet wide for all systems including switches, emergence stops, elevated or ground level of the land surface, and extra. The shanghai maglev train, the worlds fastest passenger train, regularly exceeds 267 mph 430 kmh. The common point in all applications is the lack of contact and thus no wear and friction.
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