Maglev train, a floating vehicle for land transportation that is supported by either electromagnetic attraction or repulsion. So a magnetic field is sent down the guideway and it pulls the train along after it. The first ideas for a modern maglev train were thought up in the early 1960s. The blades start to rotate and spin a shaft that leads from the hub of the rotor to a generator and produce electricity. Commonly asked question about maglev minnesota maglev. Maglev is a system in which the vehicle runs levitated from the guideway corresponding to the rail tracks of conventional railways by. 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. First, case was in germany 2006 when at a test site a maglev train ran into a maintenance car left on the guideway. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. The transrapid maglev train can reach 300 mph 490 kph with passengers. Maglev trains eliminate a key source of frictionthat of train wheels on the railsalthough they must still overcome air resistance.
Maglev is a system in which the vehicle runs levitated from the guideway corresponding to the rail tracks of conventional railways by using electromagnetic forces between superconducting magnets on board the vehicle and coils on the ground. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. These trains follow magnetic guiderails instead of conventional rails. The detailed working of maglev train is shown in the figure below. 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 magnetic levitation technology can be used as an efficient technology in. It is estimated that a future maglev may travel at a speed as high as 500 kmh, which doubles the speed of the existing fastest train. Types of maglev trains based on the technique used for levitation the are two types of maglev trains 1. The train has a superconducting magnet built into the base of the carriages. 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. Principle of maglev trains electromagnetic suspension developed by germans, works on attraction. Basic maglev train and its working linkedin slideshare. However, a demerit of the maglev is the expensive construction fee of the guidance rail. The engine for maglev trains is rather inconspicuous. Magnetic levitation is a highly advanced technology. Apr 30, 2015 how does it work o a maglev train floats about 10mm above the guideway on a magnetic field.
The evolution of mass transportation has fundamentally shifted human civilization. Since the only way to become servery injured is when the train crashes, but those incidents are few and far in between for example, within the last ten years there have only been two recorded accidents with maglev train travel. Many maglev projects are controversial, and the technological potential, adoption prospects and economics of maglev systems have often been hotly debated. This scientific principle is critical for the train to float. Maglev trains were conceptualized during the early 1900s by american professor and inventor robert goddard and frenchborn american engineer emile bachelet and have been in. Nov 26, 2006 for this reason the only limiting factor for a maglev train s speed is air friction. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations.
To picture how a maglev train is propelled forward, think of three bar magnets lined up on the floor. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations the two primary issues involved in magnetic levitation are lifting forces. Electromagnets under the train are directed up toward the guideway, which lifts the train about of an inch 1 centimeter above the guideway. In maglev trains, the secondary is attached to the bottom of the train cars, and the primary is in the guideway.
The result is a transport system which can regularly attain much higher speeds than more conventional rail systems. T railway technology today 12 edited by kanji wako magnetic. The end product is a train made of a battery and magnets that propels itself through a coil of wire using electromagnetic force. Technology and working of maglev trains fig 21 internal.
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. The approach to calculate the aerodynamic drag of maglev. Maglev train simple english wikipedia, the free encyclopedia. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents. Learn about the maglev track and see a diagram of a magelev track. Maglev trains use electromagnets to lift the whole train into the air a short distance. The highest recorded speed of a maglev train is 581 kilometres per hour 361 mph, achieved in japan in 2003, 6 kilometres per hour 3. Maglev trains short form of magnetic levitation are a very fast type of highspeed rail. Working of the maglev trains can be studied under the following.
Maglev trains are trains which are suspended, guided and propelled moved forward by magnetic forces. A magnetically levitated maglev train developed by central japan railways co. The maglev system uses the basic property of magnets, where like forces attract and unlike forces repel. The most spectacular applications of this would be maglev trains. The maglev project consists of two construction phases. The train will be floating about 10mm above the magnetic guiding track. A fast and reliable software network load balancer daniel e.
Electromagnets are located on underside of train and wrapped around t shaped guide rail. With maglev, a vehicle travels along a guideway using magnets to create both lift and propulsion. The following is a general explanation of the principle of maglev. In the 1860s, a transcontinental railroad turned the monthslong slog across america into a weeklong. Maglev trains free download as powerpoint presentation. The maglev track allows the train to float above the track through the use of repelling magnets. Brandon gilmore, jeff deely, magnetic levitation transportation by the use of electromagnets in maglev trains, a11, paper 3068, april 20. Thus, there is no need of any engine inside he train. These fields lift the train a small distance above the tracks and move the train. The coaches of the train do not slide over steel rails but float on a four inch air cushion above the track using meissner effect of super conducting magnets. Uses and its practical application in magnetic bearing. At present maglev technology has produced trains that can travel in excess of 500 km 310 miles per hour. According to assumption 2, there is no vibration in the zdirection, which means that all of the kinetic energy of the free levitated running train is consumed because of the aerodynamic drag after the train gains the initial kinetic energy. Jun 14, 2016 in maglev, superconducting magnets suspend a train car above a ushaped concrete guideway.
A super highspeed transport system with a nonadhesive drive system that is. The track of the maglev train is called the guideway. Ziari, assessment of structural analysis and design principles for maglev guideway. Levitation maglev trains have no contacts with the rails while they move forward. This is a working maglev train that i designed and 3d printed. Maglev trains seminar report,ppt,pdf,doc,presentation,free. In 1904 goddard described a rail system using an electromagnetic rail bed to levitate a train in a tube. Posts equations and concepts, paul was able to create a sophisticated matlab program that can calculate various train parameters velocity, drag force, etc. Principle of maglev maglev is a system in which the vehicle runs levitated from the guide way corresponding to the rail tracks of conventional railways by using electromagnetic forces between superconducting magnets on board the vehicle and coils on the ground. Of course this is the basis and simple principle of maglev and linear induction technology. Jan 31, 20 maglev trains are trains which are suspended, guided and propelled moved forward by magnetic forces. Maglev derived from magnetic levitation is a transport method that uses magnetic levitation to move vehicles without making contact with the ground. Magnetic levitation maglev is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track as in levitation, then another set to move the floating train ahead at great speed taking advant.
German farmers working nearby the maglev railway could hardly notice a train passes by. This project is a continuation of work done by paul friend in 2004. Maglev trains avoid these disadvantages and prove highly beneficial. A maglev train car is just a box with magnets on the four corners, says jesse powell, the son of the maglev inventor, who now works with his father. If this technology was implemented in a vacuum, there would be nothing holding the train back to stop if from accelerating. This speed is twice as fast as a conventional commuter train and. Magnetic levitation track construction instruction manual. Finished solenoid track and battery train principles of operation we will put two basic principles of electromagnetics and magnetism to work to create an electric train. The train is propelled by the changing in magnetic fields. The train will be propelled to move by the guide way itself. 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. Simple magnetic levitation train seminar reportpdf ppt. This manual can also be used by event supervisors to construct a magnetic levitation track to be used at science olympiad tournaments. Although maglev dont use steel wheel on steel rail usually associated with trains, the dictionary definition of a train is a long line of vehicles traveling in the same direction it is a train.
All maglev train rail systems have 3 components electromagnetic propulsion is used to levitate and move trains the 2 main types of maglev technologies available ems and eds how it works 4. In other words, by this speed, it will only take two hours to travel from paris to rome. Magnetic levitating trains electrical and computer. Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can.
Richard post from lawrence livermore national labs llnl. The magnet in front is pulling with an attracting opposite magnetic pole and the magnet in back is pushing with a repulsing similar magnetic pole. In a way then, the entire length of a maglev track can be considered to be part of the trains motor. The maglev trains are proved very much useful by the environmental consideration.
For this reason the only limiting factor for a maglev train s speed is air friction. In 2004, paul friend began working on a maglev model with the help of dr. The common point in all applications is the lack of contact and thus no wear and friction. In maglev, superconducting magnets suspend a train car above a ushaped concrete guideway.
The report focuses on the technology empowering the highly successful transportation method of maglev trains, and their advantages. Simple magnetic levitation train seminar reportpdf ppt download. Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can compete favorably with highspeed rail and airplanes. 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. This lack of friction means that they can reach higher speeds than conventional trains. Other guidance magnets in the train s body keep it stable during travel.
Like ordinary magnets, these magnets repel one another when matching poles face each other. The name maglev is derived from magnetic levitation. Jr japans maglev traveling at 500 kmh 311mph duration. T railway technology today 12 edited by kanji wako. Basic principle of maglev trains maglev trains have to perform the following functions to operate in high speeds 1. Principle the basic working principle of a wind turbine is when air moves quickly, in the form of wind, the kinetic energy is captured by the turbine blades. Simple magnetic levitation train seminar reportpdf ppt download the answer to this transportation problem lies in the world of electro magnetism and superconducting magnets.
Review of maglev train technologies article pdf available in ieee transactions on magnetics 427. We feel pleased to present our formal report on maglev trains. The guidance magnets placed on each side of the train keep it centered along the track and guide the. A maglevs guideway has a long line of electromagnets. Prashant zanwar university of central florida maglev. 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. This results in the following differential equation for the ball dynamics. The electromagnetic force is used to counteract the effects of the gravitational force. Maglev trains seminar report,ppt,pdf,doc,presentation.