Although the united states pioneered in the theoretical approaches and. The magnetic levitation maglev transportation system is a rail transport method. First, the trains velocity induces a current in the track. Magnetically levitated maglev trains differ from conventional trains in that they are levitated, guided and propelled along a guideway by a changing magnetic. A second train set was completed at the end of 1997, making it possible to conduct various tests with two trains. Electromagnetic levitator an electromagnet creates a magnetic field that attracts a hollow steel globe or similar object upward. Magnetic levitation transportation has many advantages over the conventional trains.
Using principles of magnetism to float in the air against gravity is called magnetic levitation. Simple magnetic levitation train seminar reportpdf ppt download the answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. 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. The reason for choosing the inductrack method and a basic explanation of the inductrack method for magnetic levitation are given. Analysis and experimental study on the maglev vehicleguideway interaction based on the fullstate feedback theory. Magnetic levitation driving without wheels presentation outline 1.
This book provides a comprehensive overview of magnetic levitation. With maglev, a vehicle is levitated a short distance away from a. Maglev can create frictionless, efficient, faroutsounding technologies. Modeling and control for a magnetic levitation system. Simple magnetic levitation train seminar reportpdf ppt download. Organize participants into teams of three or four people. Work on magnetic levitation maglev as a basis for ground transport systems has been going on since the 1960s, and although the future of maglev in land transport is. Practical applications of magnetic levitation technology. Optimizing the controller design to guide the motion of a maglev train. Magnetic levitation theory and application based on levitation such as train,toy,turbine etc. With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both lift and thrust.
Magnetic levitation is the process of levitating an object by exploiting magnetic fields. Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can. 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. Worlds fastest trains maglev capable of 3,500 kmh youtube. Maglev derived from magnetic levitation is a transport method that uses magnetic levitation to move vehicles without making contact with the ground. Magnetic levitation is a method by which an object is suspended in the air with no support other than magnetic fields. 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. In 2004 and 2005, high and lowspeed magnetic trains developed based on. The bigger magnet at bottom have an opposite polarity to the magnetic spinning top. The first levitating passenger train operated in hamburg, germany in 1979, although only permanent magnets were used. Magnetic levitation maglev is amongst the most advanced technologies that are available to the transportation.
The shanghai maglev train or shanghai transrapid chinese. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents. In it, railroading technology will away with moving components, permitting vehicles to maneuver additional swimmingly and more. In this firstever popular introduction to maglev the use of magnetic forces to overcome gravity and frictionjames d. Slideshare uses cookies to improve functionality and. Jun 23, 2016 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. Download the seminar report for magnetic levitation. Maglev 1 magnetic levitation experiment quanser consulting inc. In addition to the developments on classical active magnetic bearings amb, recently, the research on more energy efficient systems associated to the developments on highstrength permanent magnet materials led the scientific community to focus on.
If a superconductor is cooled below its critical temperature while in a magnetic field, the magnetic field surrounds but does not penetrate the superconductor. Livingston takes lay readers on a journey of discovery, from basic concepts to todays most thrilling applications. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations. Magnetic levitation applications are becoming more prevalent because permanent magnetic materials have improved in recent years, and their intrinsic instability can be conveniently hindered. Magnetic levitation maglev is an innovative transportation technology. What is the theory behind this magnetic levitation experiment. The principle difficulties encountered when applying maglev technology to different systems, namely air gap control. To improve the riding performance and levitation stability of a highspeed permanent magnet electromagnetic suspension system maglev train. Magnetic levitation free download as powerpoint presentation. This signal is fed back through a levitation constant that is defined by properties of the levitation halbach array and the track design. Maglev short for magnetic levitation trains can trace their roots to technology pioneered at brookhaven national laboratory. T railway technology today 12 edited by kanji wako magnetic.
Brandt, theory catches up with flying frog, physics world, 10, 23, sept 1997 e. If magnetic repulsion is used, it is known as magnetic 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. The concept of magnetically levitated or maglev trains is of very. Permanent magnetic levitation and stability springerlink. The phenomena of levitation of a magnet above a cooled superconductor is known as the meissner effect. In this paper the best current magnetic materials, the rare earths and especially the ndfeb alloy, are presented. Magnetic levitation maglev technology and applications hyung. Current projects nclusion introduction maglev, or magnetic levitation, is a system of transportation that suspends, guides.
The globe doesnt crash against the magnet, however. Earnshaws theorem proves that using only static ferromagnetism it is impossible to stably levitate against gravity, but servomechanisms, the use of diamagnetic materials, super conduction, or systems involving eddy currents permit this to occur. Analysis and experimental study on the maglev vehicle. The electromagnetic force is used to counteract the effects of the gravitational force. 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. Magnetic levitation train technology the objective of this project is the creation of a laboratory scale magnetic levitating train. Levitation control of permanent magnet electromagnetic hybrid. The principle difficulties encountered when applying maglev technology to.
Development status and global competition trends analysis of. 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. Measurements of the magnetic field, at ground level directly under the standard 8mhigh elevated guideway show a magnetic field of only 0. Give each team their track section and their train starter see getting ready. 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. James powell and gordon danby of brookhaven received the first patent for a magnetically levitated train design in the late 1960s. Research on the lowspeed magnetic levitation rail beam key design. Kemper proposed the principle of electromagnetic levitation. 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 picture on the bottom of figure 4 shows this demonstration. In the past, magnetic levitation was attempted by using permanent magnets. 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. Feb 10, 2008 watch the entire video before commenting. 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.
An assembled magnetic levitation system mechanical project. 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. On modeling and control for a maglev system sciencedirect. Magnetic levitation theory synonyms, magnetic levitation theory pronunciation, magnetic levitation theory translation, english dictionary definition of magnetic levitation theory. Magnetic levitation technology is a perfect solution to achieve better performance for many motion systems, e. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If the magnetic force of attraction is used, it is known as magnetic suspension.
The magnet induces current in the superconductor which creates a countermagnetic force that causes the two materials to repel. 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. Maglev derived from magnetic levitation uses magnetic levitation to propel vehicles. Apr 26, 2012 magnetic levitation train free download as powerpoint presentation. Modeling and control for a magnetic levitation system based. Index t erms eds, ems, maglev train, magnetic guidance, magnetic levitation, magnetic propulsion. The in creasing attention in the applications of lin ear electric m otor theory has brought interest and challenges for the. The common point in all applications is the lack of contact and thus no wear and friction.
A high speed maglev train uses noncontact magnetic levitation, guidance and propulsion systems and has no. Mechanical project on magnetic levitation download report pdf. These incredible trains use magnets to allow the train to hover just above the tracks, eliminating friction and allowing them to travel at speeds of up. Magnetic levitation train free download as powerpoint presentation. Highspeed movement is a result of magnetic levitation while propulsion is provided by the fine placement of electromagnets in the form of coils. Digital levitation electromagnetic levitation, electromagnetic suspension and levitation techniques. Magnetic levitation is a highly advanced technology. The following is a general explanation of the principle of. With maglev, a vehicle travels along a guideway using magnets to create both lift and propulsion. One electromagnet pole faces a black post upon which a 2. This increases efficiency, reduces maintenance costs, and increases the useful life of the system.
The name maglev is derived from magnetic levitation. It is sometimes said to be the first fundamental innovation in the field of railroad technology since the invention of the railway. The magnetic levitation force is ideal for supporting a train at very high speeds. Magnetic levitation an overview sciencedirect topics. Magnetic levitation trains and conventional trains. 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. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Build a magnetic levitating train that can balance on a magnetic track without falling. The answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. When he makes it to spin the top keeps its polarity directio. The ball elevation from the post is measured using a sensor embedded in the post. Apr 10, 2011 magnetic levitation theory and application based on levitation such as train,toy,turbine etc. Levitation means to rise or float in the air especially in seeming defiance of gravity.
Review article the most important maglev applications. The use of magnetic fields to suspend an object above another object without solid mechanical support. The concept of magnetically levitated or maglev trains is of very much interesting. This results in the following differential equation for the ball dynamics. One of the features of maglev systems is reduction of imagination, which makes. The spinning top would had turned upside down if the guy wasnt there to hold it in that direction. The magnetic levitation technology can be used as an efficient technology in.
Magnetic levitation of rotors has been an important research subject in the last decades. T railway technology today 12 edited by kanji wako. Maglev train capable of 3,500 kmh theoretically if inside a vacuum tunnel high speed magnetic levitation train. Now the train has no friction levitating on the track with a magnetic system that makes it goes smooth and fast. The fields are used to reverse or counteract the gravitational pull and any other counter accelerations. 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. Challenge the team to balance their train on the track. Control theory and applications, iee proceedings, 151 2004, pp. Maglev bearing a magnetic bearing is a bearing which supports a load using magnetic levitation. Simple magnetic levitation train seminar reportpdf ppt. From peter pan to harry potter, from david copperfield to levitating toys, there is magic in conquering gravity. Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can compete favorably with highspeed rail and airplanes.
796 1185 1566 1097 875 1513 424 860 59 472 1433 1483 1437 264 1383 18 324 1206 59 958 821 621 1075 445 198 611 767 1456 848 1184 1385 129 289 415 1291 749 645 797 884 420 495 1411 235