Advantages and disadvantages of maglev trains wheelzine. This is the presentation of my extra credit project for m e 230 kinematics and dynamics winter 2014 class. The aim of this thesis was to investigate magnetic levitation and to design a working system capable of levitating an object from below. Simple magnetic levitation train seminar reportpdf ppt download. Vacuum tube train systems might hypothetically allow maglev trains to attain speeds in a different order of magnitude, but no such tracks have ever been built. These principles govern the levitation of maglev trains. This repulsive property of magnets is used in maglev trains.
Richard post from lawrence livermore national labs llnl. Tracks the term maglev refers not only to the vehicles, but to the railway system as well, specifically designed for magnetic levitation and propulsion. The evolution of mass transportation has fundamentally shifted human civilization. By meissner effect the superconducting magnet s expels the vertical magnetic flux. Diagram showing a simplified arrangement of electromagnets to levitate a train. It employs diamagnetism, which is an intrinsic property of many materials referring to their. Electromagnets are distributed along the guideway in matched pairs. Give each team their track section and their train starter see getting ready. Principle of magnetic levitation the 8 figured levitation coils are installed on the sidewalls of the. Maglev est lacronyme anglais pour magnetic levitation. The name maglev is derived from magnetic levitation. Table 41maglev and highspeed rail corridors under consideration corridor route length technology overseeing authority status and cost orlando airport. For observer based controller three states have been reduced, the controlled response has six states and after. V3 department of mechanical engineering, magna college of engineering, magaral, chennai, india 1,2, 3.
Since then, japans shinkansen network has expanded considerably, and its success has prompted rapid development of highspeed railways in other countries. The guideway is the physical structure along which maglev vehicles are levitated. Principle of lateral guidence in ems the levitation magnets and rail are bothsystem. 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. The train will be propelled to move by the guide way itself. Observer based controller for magnetic levitation system. Pdf propulsion of magnetic levitation train researchgate. A magnetically levitated maglev train developed by central japan railways co. Tracks the term maglev refers not only to the vehicles, but to the. 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 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. Maglev trains seminar report,ppt,pdf,doc,presentation,free. The maglev project consists of two construction phases. This is a wonderful topic for your mechanical engineering seminar as well as project if you dare to make a working model.
Sep 11, 2012 magneticlevitation literally means floating in air. In magnetic levitation maglev, also known as magnetic suspension, this basic principle is used to suspend or levitate vehicles weighing 40 tons or more by generating a controlled magnetic force. T railway technology today 12 edited by kanji wako magnetic. Maglev train, also called magnetic levitation train or maglev, a floating vehicle for land transportation that is supported by either electromagnetic attraction or repulsion. Working sliding rails on the top of guide way supports the vehicle.
The benefits of this method are that it is simpler to. Trains with magnetic levitations are part of the game. The mode of operation classifies the type of propulsion principles of the train. Levitation is the ability for the train to stay suspended above the track. Each implementation of the magnetic levitation principle for traintype travel involves advantages and disadvantages. Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can compete favorably with highspeed rail and airplanes. Maglev train is propelled by the guide way itself and the train changes its section. 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. Principle of propulsion make the train of pine wood and stick themagnets on them also in the same way and maintain equal distance. Build a magnetic levitating train that can balance on a magnetic track without falling. This levitates the train and keeps it afloat the guide way, the horizontal coils are thus called levitating coils.
In 2015, a maglev train in japan broke the record for the fastest train in the world, traveling at 374 mph. Like ordinary magnets, these magnets repel one another when matching poles face each other. Each implementation of the magnetic levitation principle for traintype travel involves. The magnetic attraction of the vertically paired magnets balances the force of gravity and levitates the vehicle above the guideway. The magnetic levitation technology can be used as an efficient technology in. This increases efficiency, reduces maintenance costs, and increases the useful life of the system.
There are two important types of levitation technology. When the onboard superconducting magnets pass at a high speed about. Maglev derived from magnetic levitation is a system of train transportation that uses two sets. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields.
Running at such high speeds, maglev sytems have to be safe and need to be. Its no longer science fiction, maglev trains are the new way of transportation in the near future, just some obstacles are in the. There are forces which push the magnet upward and once which pull them upwards simultaneously thereby levitating the maglev vehicle. By using powerful magnets on both the train and the guideway, one is able to not only levitate the train which allows for higher speeds than the traditional wheel and track locomotive but also accelerate the train. In maglev, superconducting magnets suspend a train car above a ushaped concrete guideway. Back in 1979 the germans developed the 1 st magnetic levitation maglev train. Organize participants into teams of three or four people. Learning the theory behind a physics principle is especially fun when you can see it actually being used in the real world.
It is specifically developed for train transportation. The journey from tokyo to nagoya on these trains is actually faster than flying, when considering the time spent jumping through airport hoops. A diagram of the model train you will build in this science project is shown in figure 2 below. Thus, there is no need of any engine inside he train. Electromagnetic suspension ems uses the attractive magnetic force of a magnet beneath a rail to lift the train up. Maglev, or magnetic levitation, trains hover over a magnetic track on a cushion formed by two magnets opposing each other, which significantly reduces friction. The maglev transportation system is more stable, faster, economic, efficient. The first to overcome the limitation of wheel and rail, because the rail moves entirely without contact. The full form and the basic working principle of maglev is called magnetic levitation. The train is propelled by the changing in magnetic fields. In this process an object is suspended above another with no other support but magnetic fields. Patent 3,158,765, magnetic system of transportation, by g.
The common point in all applications is the lack of contact and thus no wear and friction. Magnetic levitation system the following figure shows the cross section of a magnetic levitation maglev train. Simple magnetic levitation train seminar reportpdf ppt download the answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. An early modern type of maglev train was described in u. Diagram showing the physical setup of the maglev cradle. The reason for choosing the inductrack method and a basic explanation of the inductrack method for magnetic levitation are given. If the power fails, the train can slow down gradually and stop on its auxiliary wheels. Nope, no photoshop and no fishing line were used to make this picture, just 100% pure physics and some patience. The shanghai maglev train or shanghai transrapid chinese. If the force is large enough, the moving magnet can levitated.
The electromagnetic force is used to counteract the effects of the gravitational force. In the past, magnetic levitation was attempted by using permanent magnets. The train service, however, is not predicted to open until 2027. Magnetic levitation is the process of levitating an object by exploiting magnetic fields. Magnetic levitation is the use of magnetic fields to levitate a usually metallic object. Time will tell as to which principle, and whose implementation, wins out commercially. The propulsion of the train is mainly based on two types of motors. How maglev trains operate introduction magnetic levitation, or maglev, is a transport method that uses magnetic levitation to move vehicles without touching the ground. In the 1860s, a transcontinental railroad turned the monthslong slog across america into a weeklong. Maglev can create frictionless, efficient forout sounding technologies. Maglev systems represent a promising evolution in the highspeed ground transportation, offering speeds in excess of 500 mph along with the potential for low operating costs and. With that being the case, instead of going through boring derivations about magnetic levitation, we will focus on an important application, highspeed trains, known as maglev trains. The detailed working of maglev train is shown in the figure below.
Working concept behind ultrahigh speed supersonic trains technology of maglev there are two primary types of maglev technology. In the late 1940s, professor eric laithwaite of imperial college in london developed the first fullsize working model of the linear induction motor. The principle and working of maglev train with lateral guidance, levitation and. The principle of magnetic levitation has been known for over 100 years. The raising of an object into the air without physically supporting the object. The train will be floating about 10mm above the magnetic guiding track. The shinkansen uses a conventional train design, with. Simple magnetic levitation train seminar reportpdf ppt. In this process an object is suspended above another with. The principle and working of maglev train with lateral guidance. Magnetic levitation is a process by which a magnet over a piece of a metal causes electrical current to flow in the metal that, in turn, produce forces that push the magnet upward. All operational implementations of maglev technology make minimal use of wheeled train technology and are. Maglev trains seminar report,ppt,pdf,doc,presentation. This project is a continuation of work done by paul friend in 2004.
Compared to conventional wheeled trains, differences in construction affect. 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. 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. Manipulating magnetic fields and controlling their forces can levitate an object. Jun 14, 2016 in maglev, superconducting magnets suspend a train car above a ushaped concrete guideway. Linear electric motor lem and, linear induction motor lim3. On the other hand current passing through the vertical coil produce a horizontal magnetic field which pushes the train forward. 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. Magnetic levitation trains are becoming a popular transportation topic all around. Railway technology today 12 edited by kanji wako magnetic levitation maglev technologies the tokaido shinkansen began operations in 1964 and was an immediate success. The oscillation magnetic levitation maglev train project. Magnetic levitation train technology the objective of this project is the creation of a laboratory scale magnetic levitating train.
T railway technology today 12 edited by kanji wako. By removing friction, these vehicles can travel at speeds higher than wheeled. A series of german patents for magnetic levitation trains propelled by linear motors were awarded to hermann kemper between 1937 and 1941. It also highlighted the potential of maglev train in developing country.
The electromagnets are used on the track for a maglev train. Maglev does not only refer to the train but also the track on which they run. Magnetic levitation train is shown in the figure 1. Pdf in this paper an overview to magnetic levitated train is presented.
Download the seminar report for magnetic levitation. This instructable explains how you can build your own top hovering in the air like a ufo. Magnetic levitation, or maglev, trains can trace their roots to. This paper discusses the propulsion technology of magnetic levitation train from an electrical engineering point of view. Maglev is a method of propulsion that uses magnetic levitation to propel vehicles with magnets rather. Maglev train paper presentation, magnetic leviation train. Magnetic levitation is a highly advanced technology.
He became professor of heavy electrical engineering at imperial college in 1964, where. 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 advantage of the lack of friction. Now if you play with two magnets, youll realize that opposite poles attract, whereas similar poles repel. If the magnetic force of attraction is used, it is known as magnetic suspension. Challenge the team to balance their train on the track. Magnetic levitation train akshay kelwadkar rajat wairagade. If magnetic repulsion is used, it is known as magnetic levitation. Rtri and jr central are working together to develop technologies for a new type of railway that is ideal for high speed travel the superconducting magnetically levitated train maglev. Some highspeed trains actually use magnetic levitation, meaning they float above the track using magnets, and do not actually use wheels. The engine for maglev trains is rather inconspicuous.
Magnetic levitation maglev is a relatively new transportation technology in which noncontacting vehicles travel safely at speeds of 250 to 300 milesperhour or higher while suspended, guided, and propelled above a guideway by magnetic fields. Advantages of superconducting maglev superconducting maglevs are also called linear motor cars. The vehicle on top of the track may be propelled with the help of a linear. The line is the third commercially operated maglev line in history after the british birmingham maglev and the german mbahn, the oldest commercial maglev still in operation, and the first commercial highspeed maglev with cruising. Maglev trains were conceptualized during the early 1900s by american professor and inventor robert goddard and frenchborn american engineer emile bachelet and have been.
Dec 26, 2012 it is important to note that with attractive forces created between the train and the track. Pdf in this paper an overview to magnetic levitated train is. Maglev train opened in shanghai in 2004, while others are in operation in japan. Engineers can use this scientific principle to create very fastmoving trains.
Give your children with the knowledge to make our world a better place to live. Magnetic levitating trains electrical and computer. It is important to note that with attractive forces created between the train and the track. Maglev systems are currently in use for applications such as bearings, highspeed trains, and manufacturing. Maglev derived from maglev could be a conveyance technology that uses magnetic levitation to move vehicles while not creating contact with the bottom or an electrical pickup. For decades, conventional trains, a major source of land transportation, have served people around the world. This paper tries to study the most important principle uses and application of magnetic levitation technology and the. Magnetic levitation is used in a new generation of train that will have cruising speeds. Magnetic levitation express kit let us work together to be a part of the larger conversation of energy efficiency and celebrate environmental friendliness and sustainability.
Ems figure 5 uses the attractive force of electromagnets placed on the guideway and on the train to achieve levitation. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations. Pdf this paper involves the design, hardware, technology, application and future uses of magnetic levitation trains. Maglev is short for magnetic levitation in which trains float on a guideway using the principle of magnetic repulsion. Magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. While the amazing speed that maglev trains boast of make them seem an apt solution for our transport woes, only a proper evaluation of their advantages and disadvantages can help us get a clear picture about the feasibility of putting them to use.
Working at the british rail research division in derby, along with teams at several. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents. The principle of magnetic levitation is that a vehicle can be suspended and propelled on a guidance track made with magnets. 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. Owi has fabricated an intricate magnetic levitation train kit to engage curiosity and.
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