As the train travels, the electromagnets at the back switch the direction of the spin so that they create a. Japan repeats history with recordbreaking maglev train. A high speed maglev train uses noncontact magnetic levitation, guidance and propulsion systems and has no wheels, axles and transmission. We feel pleased to present our formal report on maglev trains. The passengers would need to activate a manual release mechanism and. Maglev trains are much more efficient than traditional trains and hold the speed record for trains 603kmh. Maglev trains are a necessity for modern time transportation needs and vital for the future. The use of maglev trains to reduce the environmental impact of the shanghai metro the maglev trains the current shanghai metro maglev line runs between shanghai longyang road station to pudong. Summary maglev trains use magnets to levitate and propel the trains forward. The present results clearly demonstrate that the stability of the superconducting trains depends on the gap between the rail and train, which is an important parameter also for the real maglev trains. Eisenbud, cheng yi, carlo contavalli, cody smith, roman kononov, eric mannhielscher, ardas cilingiroglu, bin cheyney, wentao. The shanghai maglev train is the fastest train in operation, reaching a top speed of 270 mph.
Trains with magnetic levitations are part of the game. Experimenting with a superconducting levitation train. Electrical systems form the heart of maglev systems and, therefore, this paper. T railway technology today 12 edited by kanji wako.
This project is a continuation of work done by paul friend in 2004. This lack of friction means that they can reach higher speeds than. Maglev systems have been built for decades, and though they started slow, some of the latest generation trains are breaking speed records. The engineering challenge is to get a train to move three feet without making physical contact with the track. Review of maglev train technologies article pdf available in ieee transactions on magnetics 427. Richard post from lawrence livermore national labs llnl. The name maglev is derived from magnetic levitation. We are here trying to develop an idea to run a train based. Essential rail installations such as switches are presently difficult to modify in a way that would ensure reliable functionality for both maglev and conventional freight trains, and grade. In general, maglev trains move more smoothly and somewhat more quietly than. Maglev trains operating at slower speeds are currently in use in china and south korea. The inductrack system isfail safe in the event of a power failure.
Maglev train in shanghai, china maglev short for magnetic levitation is a way of propelling a vehicle along using magnets rather than wheels and axles. However, vertical track irregularity in the maglev train line has a dreadful effect on the tracking performance of the magnetic levitation system. Maglev trains short form of magnetic levitation are a very fast type of highspeed rail. The maglev project consists of two construction phases. A fast and reliable software network load balancer daniel e. Maglev is defined as a family of technologies in which a vehicle is suspended, guided, and propelled by. Maglev trains use the physical forces of magnetism and electromagnetism to not only levitate the train, but to push and. Find maglev train stock images in hd and millions of other royaltyfree stock photos, illustrations and vectors in the shutterstock collection. The result is a transport system which can regularly. The shanghai maglev appears to be the only true commercial maglev train. 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. Most people who have played with magnets know that two oppositepole magnets will attract, while two likepole magnets will push apart. These trains follow magnetic guiderails instead of conventional rails.
Our results confirm that a gap of 5 mm is the optimum distance to run the train showing also stability to run fast on the track. Engineers have developed magnetically levitated trains called maglev trains that move without touching the ground. Maglev train free download as powerpoint presentation. The power supply to maglev trains is a variable voltage and variable frequency 3 phase a. Magnetic levitation transport or maglev is a form of transportation that suspends guides and. Similar systems are in use today as highspeed trains and some of the newer, radicalride roller coasters. The bearings developed at livermore employed cylindrical magnet arrays to sta inductrack maglev system could allow trains to glide across the country. 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. 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. Pdf maglev freight one possible path forward in the u. These superfast trains float above their rails, darting from place to. For most applications of magnets, people want them to stick. The use of maglev trains to reduce the environmental. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents.
Maglev trains use electromagnets to lift the whole train into the air a short distance. A maglev system uses magnetic fields to levitate and accelerate a vehicle along a track. In the electromagnetic suspension ems system the train is wrapped around the track and electromagnets attached to the bottom of the train are attracted upwards to the guide way. In the dream big maglev train lesson, students designed a magnetic train system. But though magnetically levitated trains have been the focus of much of the worldwide interest in maglev, the technology is not limited to train.
Thousands of new, highquality pictures added every day. Maglev train simple english wikipedia, the free encyclopedia. Maglev train transportation systems and technology. Maglev trains qfiles the online library of knowledge. Recently, maglev has seen an ideal use in the train industry, where it has been leveraged to make train wheels and tracks.
Magnetism provides the force required to levitate the train over the tracks, reducing the energy required to move the train. Apr 3, high reliability and lower maintenance and operating costs make magnetic levitation maglev technology integral to advancing the nations. Magnetic levitation is a highly advanced technology. Maglev derived from magnetic levitation uses magnetic levitation to propel vehicles. The report focuses on the technology empowering the. The driving force of the superspeed maglev train is all supplied from the coils of the trackside on ground, and the vehicle has only magnets for levitation.
Maglev trains sound like the stuff of science fiction, but it s yet another scientific marvel that engineers have made a reality. The common point in all applications is the lack of contact and thus. Maglevs eliminate a key source of frictionthat of train wheels on the railsalthough they must still overcome air resistance. Since there is no friction these trains can reach high speeds. 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. We could use normal magnets, but their magnetic power is limited.
Magnetic levitation maglev is an innovative transportation technology. Index termseds, ems, maglev train, magnetic guidance, magnetic levitation, magnetic propulsion. It is sometimes said to be the first fundamental innovation in the field of railroad technology since the invention of the railway. With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both lift and. A second train set was completed at the end of 1997, making it possible to conduct various tests with two trains, such as one. If a maglev wants to use this force to levitate, it needs a strong magnetic field in its wagons. Magnetic levitation is a technology that uses magnetic fields to make the train move. The train travels along a guideway of magnets which control the trains stability and speed. Prashant zanwar university of central florida maglev. Maglev trains free download as powerpoint presentation.
These trains use powerful magnets to lift the train upward and propel it forward. Maglev trains are pulled forward using polarities that attract each other at the front of the train. This not only indicates the necessity of the electrification of railways, but it. Maglev train download ebook pdf, epub, tuebl, mobi. Maglev, or magnetic levitation, is a kind of technology used for many different purposes. With the maglev, a vehicle is levitated a short distance away from a guideway by using magnets to create both lift and thrust.
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