The magnetic levitation force is ideal for supporting a train at very high speeds. This is to certify that the work in the thesis entitled controller design for magnetic levitation system by abhishek nayak is a record of an original research work carried out by him under my supervision and guidance in partial fulfillment of the requirements for the. The magnetic levitation technology can be used as an efficient. Maglev derived from magnetic levitation is a system of train transportation that uses two sets. Using principles of magnetism to float in the air against gravity is called magnetic levitation. Magnetic levitation is the process of levitating an object by exploiting magnetic fields. Highspeed movement is a result of magnetic levitation while propulsion is provided by the fine placement of electromagnets in the form of coils. This model maglev train uses superconductors and magnets to float above the track. Scribd is the worlds largest social reading and publishing site. An unsung phenomenon of the past which is now being put to use in a variety of interesting and useful applications. Index t erms eds, ems, maglev train, magnetic guidance, magnetic levitation, magnetic propulsion. In the past, magnetic levitation was attempted by using permanent magnets. A magnetically levitated maglev train developed by central japan railways co.
He is presently writing a book on the societal implications of energy, land development and transportation policy in the us. Maglev 1 magnetic levitation experiment quanser consulting inc. Brandt, theory catches up with flying frog, physics world, 10, 23, sept 1997 e. The design for this papers maglev train was not based on any current maglev technology, nor does it seek to improve on any current technology. 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. 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. One electromagnet pole faces a black post upon which a 2. Earnshaws theorem proves that using only static ferromagnetism it. Jan 22, 2008 a short film that shows our levitating train. The first levitating passenger train operated in hamburg, germany in 1979, although only permanent magnets were used. The evolution of mass transportation has fundamentally shifted human civilization. In it, railroading technology will away with moving components, permitting vehicles to maneuver additional swimmingly and more. Modeling and designing a pid controlled magnetic levitation. 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.
Apr 26, 2012 magnetic levitation train free download as powerpoint presentation. With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both lift and thrust. Since then, japans shinkansen network has expanded considerably, and its success has prompted rapid development of highspeed railways in other countries. The name maglev is derived from magnetic levitation. With maglev, a vehicle travels along a guideway using magnets to create both lift and propulsion. The concept of magnetically levitated or maglev trains is of very much interesting.
Levitation means to rise or float in the air especially in seeming defiance of gravity. Superconducting maglevs are also called linear motor cars. Highspeed rail and maglev trains have become realities. Magnetic levitation driving without wheels presentation outline 1. To learn more about superconductors, you can look at this lesson. Levitation the passing of the superconducting magnets through levitation coils on the side of the track induces a current in the coils and creates a magnetic field. Magnetic levitation an overview sciencedirect topics. 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. If the magnetic force of attraction is used, it is known as magnetic suspension. Simple magnetic levitation train seminar reportpdf ppt download the answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. Maglev bearing a magnetic bearing is a bearing which supports a load using magnetic levitation. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations. Levitating train 3 instructions introduce the design challenge. Maglev derived from magnetic levitation uses magnetic levitation to propel vehicles.
Maglev derived from magnetic levitation is a transportation method that uses the energy in magnetic levitation to move vehicles with no contacts between the track and moving vehicle. Maglev trains are a necessity for modern time transportation needs and. Now the train has no friction levitating on the track with a magnetic system that makes it goes smooth and fast. Magnetic levitating trains electrical and computer. T railway technology today 12 edited by kanji wako. Magnetic levitation did not always seem possible r. A superconductor is a material which conduct an electric current without resistance. Levitation is the ability for the train to stay suspended above the track. There are, however, a few ways to levitate by getting around the assumptions of the theorem. Maglev train propulsion and levitation may involve the use of superconducting materials, electromagnets, diamagnets, and rareearth magnets. In the 1860s, a transcontinental railroad turned the monthslong slog across america into a weeklong. Mechanical project on magnetic levitation introduction to magnetic levitation magnetic levitation, maglev, or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Development history in the early development stages, superconducting magnet technology was considered an esoteric technical field and some people assumed that the technology could never be used for commercial train travel.
This kit contains one neodymium superstrong magnet, more than 20 ceramic magnets, as well as plasticrubber magnet strips. This idea can be seen in the maglev trains of japan where the trains use electromagnets to create lift and propulsion, this in turn, reduces the friction along the track of and allows the train to glide across the track. This results in the following differential equation for the ball dynamics. Magnetic levitation theory synonyms, magnetic levitation theory pronunciation, magnetic levitation theory translation, english dictionary definition of magnetic levitation theory. Build a magnetic levitating train that can balance on a magnetic track without falling. Seminar on maglev trains report free pdf download abstract as the world continues to grow and as cities continue to become more crowded and congested, our normal modes of transportation will not be able to handle these overpopulated areas. This book is the first factual compendium on scientific levitation achievement that i have had the pleasure of reading and am very proud to add it to my library. May 04, 2015 levitation the passing of the superconducting magnets through levitation coils on the side of the track induces a current in the coils and creates a magnetic field. The principal of a magnet train is that floats on a magnetic field and is propelled by a linear. The magnetic levitation technology can be used as an efficient technology in.
Magnetic levitation is a highly advanced technology. The answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. Principle of magnetic levitation the 8 figured levitation coils are installed on the sidewalls of the guideway. Magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. Magnetic levitation is a way to suspend objects in air without any support, as if in defiance of gravity. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents. This means in theory trains and track would need no maintenance at all. The ball elevation from the post is measured using a sensor embedded in the post.
If you need additional magnetic strips or want to make your own kits, please use the product code magtape. A theorem due to earnshaw proves that it is not possible to achieve static levitation using any combination of fixed magnets and electric charges. There are two important types of levitation technology. Check if the weight is balanced by the magnetic levitation force. A new strategy for improving the tracking performance of magnetic. 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. Using either ferromagnetism diamagnetism object can be levitated. The film also features an animation segment explaining the physics. It employs diamagnetism, which is an intrinsic property of many materials referring to their. The use of magnetic fields to suspend an object above another object without solid mechanical support.
The method realizes stable and welldamped levitation. The common point in all applications is the lack of contact and thus no wear and friction. Railway technology today 12 edited by kanji wako magnetic levitation maglev technologies the tokaido shinkansen began operations in 1964 and was an immediate success. A magnet trainsystem fits well in the subarctic environment in scandinavia and offers a. Clark ii, grant cooke, in the green industrial revolution, 2015.
A magnetic levitation method that combines all the known advantages of active magnetic bearings in a selfsensing configuration is presented. The train does not levitate until it reaches 50 mph, so it is equipped with retractable wheels. Magnetic levitation is the use of magnetic fields to levitate a usually metallic object. The benefits of this method are that it is simpler to. Review of maglev train technologies article pdf available in ieee transactions on magnetics 427. Most important application of magnetic levitation is tran rapid magnetic lift. When the onboard superconducting magnets pass at a high speed about several centimeters below the center of these coils, an.
Discover the gravity defying effects of magnetism through experiments in equilibrium, gravity, and magnetic fields. Magnetic levitation, or maglev, may do for the gir in the twentyfirst century what airplanes did for the 2ir in the twentieth century. 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. Magnetic levitation captionovercoming the pull of gravity and fighting acceleration are major challenges for scientists looking. Today, were going to build a tiny model of a maglev train. The rand corporation has depicted a vacuum tube train that could, in theory, cross the atlantic or the usa in around 21 minutes.
Static levitation means stable suspension of an object against gravity. James powell and gordon danby of brookhaven received the first. Rather, the pose of this project was to design a working model of a maglev train in order to better understand the principles behind magnetic levitation and propulsion 1. The goal of this effort is to investigate the feasibility and viability of 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. Ems figure 5 uses the attractive force of electromagnets placed on the guideway and on the train to achieve levitation. The system itself is not a complete solution but offers only levitation.
The magnets used in magnetic levitation suspend an object free of contact with any surface, making it particularly appropriate for highspeed 275300 mph435475 kmh transportation, where it greatly reduces friction and allows for fast, quiet operation. T railway technology today 12 edited by kanji wako magnetic. Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can compete favorably with highspeed rail and airplanes. Magnetic pressure is used to counteract the effects of the gravitational and any other accelerations.
Anderson and morten ring eskildsen department of phyy,sics, university of notre dame, notre dame, indiana 46656, usa what is a superconductor. Then build a magnetic levitation train with this kit. Electromagnetic suspension and electrodynamic suspension are only two types of magnetic levitation and many other forms exist and even more are still likely to be developed. James powell and gordon danby of brookhaven received the first patent for a magnetically levitated train design in the late 1960s. Current projects nclusion introduction maglev, or magnetic levitation, is a system of transportation. Jan 15, 2016 maglev bearing a magnetic bearing is a bearing which supports a load using magnetic levitation. Mechanical project on magnetic levitation download report pdf. Organize participants into teams of three or four people. Maglev derived from magnetic levitation is a transport method that uses magnetic levitation to move vehicles without making contact with the ground. Manipulating magnetic fields and controlling their forces can levitate an object. Although the united states pioneered in the theoretical approaches and. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. Maglev short for magnetic levitation trains can trace their roots to technology pioneered at brookhaven national laboratory.
It is proved that magnetic levitation cannot be obtained just by using static ferromagnetism, as the object would tend to gain instability. The magnetic field on the back of the train will change to the same pole of the magnetic field on the train which pushes the train. Simple magnetic levitation train seminar reportpdf ppt. 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. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. The picture on the bottom of figure 4 shows this demonstration. 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 pushes the train upward so that it can levitate 10 cm above the track. Magnetic bearings support moving machinery without physical contact, for example, they can levitate a rotating shaft and permit relative motion with very low friction and no mechanical wear.
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