This current then induces a magnetic field that levitates the train. Maglev derived from magnetic levitation uses magnetic. 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. Maglev train, also called magnetic levitation train or maglev, a floating vehicle for land transportation that is supported by either electromagnetic attraction or repulsion. The maglev trains are much faster than traditional trains because the levitation has.
Magnetic levitation train is a type of train that uses electromagnetic system for both levitation and propulsion. Jul 22, 2012 maglev guideways or tracks track repels magnets on undercarriage of train, sending the train forward. Winner of the standing ovation award for best powerpoint templates from presentations magazine. Propulsion a linear synchronous motor lsm propels the train.
Maglev train capable of 3,500 kmh theoretically if inside a vacuum tunnel high speed magnetic levitation train. Maglev system represent a promising evolution in highspeed ground transportation, offering speed in excess of 500 mph along with the potential for low operating costs and minimum environmental impact. In this video we will have a closer look at the subject of magnetic levitation. There are, however, a few ways to levitate by getting around the assumptions of the theorem. Physics of magnetic levitation train 854 words cram.
Ppt magnetic levitation train powerpoint presentation. 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. T railway technology today 12 edited by kanji wako magnetic. Anderson and morten ring eskildsen department of phyy,sics, university of notre dame, notre dame, indiana 46656, usa what is a superconductor.
The benefits of this method are that it is simpler to. Ems figure 5 uses the attractive force of electromagnets placed on the guideway and on the train to achieve levitation. Projet design principles highspeed maglev system eisenbahn. Levitating train 3 instructions introduce the design challenge. Maglev trains use superconductor magnets that are cooled to incredibly low temperatures to produce intense magnetic fields used to drive the train forward and keep it hovering off of the tracks. Designing and constructing superconducting magnetic levitation maglev trains using bulk superconductors and magnets is an exciting topic that can challenge science students. This paper discusses the propulsion technology of magnetic levitation train from an electrical engineering point of view. There are two important types of levitation technology. 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. In theory, this means the maglev trains and track would need no. In a commercially available magnetic levitation train, a superconducting magnet and electromagnet are used to lift the train and move it on the rail. The name maglev is derived from magnetic levitation. Train 1 project is to design and implement levitation, guidance, and propulsion for a small scale 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. Feb 10, 2008 watch the entire video before commenting. James powell and gordon danby of brookhaven received the first patent for a magnetically levitated train design in the late 1960s. The method currently being pursued is a passive levitation and guidance system that is controlled by the propulsion of the train. Consequently, there are substantial technical documents which. As you may have figured out looking at the word maglev, maglev trains are trains that use magnetic levitation. 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. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Slideshare uses cookies to improve functionality and. 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. This book provides a comprehensive overview of magnetic levitation maglev technologies, from fundamental principles through to the stateoftheart, and describes applications both realised and. Highspeed movement is a result of magnetic levitation while propulsion is provided by the fine placement of electromagnets in the form of coils.
Railway technology today 12 edited by kanji wako magnetic levitation maglev technologies the tokaido shinkansen began operations in 1964 and was an immediate success. Fred fickett, chief, nist magnetic technology division ret. Abstract the term levitation refers to a class of technologies that uses magnetic levitation to propel vehicles with magnets rather than with wheels, axles and bearings. The shanghai maglev train is the fastest train in operation, reaching a top speed of 270 mph. 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 bearing a magnetic bearing is a bearing which supports a load using magnetic levitation. The trains with 10 or 15 mm gaps do not run stable on the track. Laser sensors provide noncontacting position feedback and incorporate proprietary conditioning to electronics. 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. 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. It employs diamagnetism, which is an intrinsic property of many materials referring to their.
Modeling and control for a magnetic levitation system. Magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. Magnetic levitation technology is a perfect solution to achieve better performance for many motion systems. Magnetic levitation free download as powerpoint presentation. The system itself is not a complete solution but offers only levitation. The maglev train isnt like an ordinary train that one would see driving throughout the united states carrying coal, cargo, and much more. 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.
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. Maglev trains running at lower than 200kmh can hardly be heard in a urban area since it uses the magnetic force to keep the train right up compared to the traditional train where the train and the track have to have a physical contact creating more noise and mechanical friction. 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. Other than airplanes, fast and commercial transportation is limited. Maglev trains were conceptualized during the early 1900s by american professor and inventor robert goddard and frenchborn american engineer emile bachelet and have been. 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. One electromagnet pole faces a black post upon which a 2. Now the train has no friction levitating on the track with a magnetic system that makes it goes smooth and fast. The engine for maglev trains is rather inconspicuous. It is a train that doesnt have to run off of regular fossil fuels like other trains, the energy can be obtained from other sources. From the ones on the fridge, the speakers in your car, and propelling high speed trains, magnets are being used constantly.
Dynamic response analysis of singlespan guideway caused by. Magnetic levitation twin pipe transport system advanced maglev train technology east coast animation. The project may be a multiyear project, because the entire system must be created. 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. Modeling and control of a magnetic levitation system concepts emphasized. 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. Maglev derived from magnetic levitation is a system of train transportation that uses two sets.
Development of linear motorpropelled, contactless maglev systems is. Maglev is an innovative approach for transportation in which trains are supported by. Instead of using fossil fuels, the magnetic field created by the electrified coils in the. Simple magnetic levitation train seminar reportpdf ppt download. Magnetic levitation is the process of levitating an object by exploiting magnetic fields. Magnetic levitation theory synonyms, magnetic levitation theory pronunciation, magnetic levitation theory translation, english dictionary definition of magnetic levitation theory. The rescue concept should be based on the selfrescue principle.
Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can compete favorably with highspeed rail and airplanes. Maglev short for magnetic levitation trains can trace their roots to technology pioneered at brookhaven national laboratory. If the magnetic force of attraction is used, it is known as magnetic suspension. Build a magnetic levitating train that can balance on a magnetic track without falling. The term levitation refers to a class of technologies that uses magnetic levitation to propel vehicles with magnets rather than with wheels, axles and bearings. The common point in all applications is the lack of contact and thus no wear and friction. Levitation force analysis of medium and low speed maglev vehicles. Magnetic levitating trains electrical and computer. A superconductor is a material which conduct an electric current without resistance.
The picture on the bottom of figure 4 shows this demonstration. 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. Organize participants into teams of three or four people. The shanghai maglev train or shanghai transrapid chinese. The magnetic levitation technology can be used as an efficient technology in. The use of magnetic fields to suspend an object above another object without solid mechanical support. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. Based on the maglev theory, the maglev train is lifted up above the guideway with a stable levitation gap via a motiondependent electromagnetic force. 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. Since then, japans shinkansen network has expanded considerably, and its success has prompted rapid development of highspeed railways in other countries.
A theorem due to earnshaw proves that it is not possible to achieve static levitation using any combination of fixed magnets and electric charges. Introduction magnetic levitation is becoming widely applicable in magnetic bearings, highspeed. A wellwritten, factual account of magnetic levitation and accompanying lore over the ages, rising force is a welcome addition to livingstons previous books on magnetics. Ralph hollis, research professor, the robotics institute, carnegie mellon university. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations. First, the trains velocity induces a current in the track.
With maglev, a vehicle is levitated a short distance. This signal is fed back through a levitation constant that is defined by properties of the levitation halbach array and the track design. Worlds fastest trains maglev capable of 3,500 kmh youtube. Magnetic levitation train kit a marriage between a doctor and a video game developer husband has brought this bluetooth headband to life. Introduction magnetic levitation is becoming widely applicable in magnetic bearings, highspeed ground transportation, vibration isolation, etc. Simple magnetic levitation train seminar reportpdf ppt. Magnetic levitation is a way to suspend objects in air without any support, as if in defiance of gravity. Maglev does not only refer to the train but also the track on which they run. Each implementation of the magnetic levitation principle for traintype travel involves advantages and. Magnetic levitation is a highly advanced technology. A magnet trainsystem fits well in the subarctic environment in scandinavia and offers a. Magnetic levitation did not always seem possible r.
If magnetic repulsion is used, it is known as magnetic levitation. Levitation is the ability for the train to stay suspended above the track. The maglev transportation idea has been around since 1941 when german engineers had patented the idea to build a transportation system using magnetic levitation. It is specifically developed for train transportation. Static levitation means stable suspension of an object against gravity. 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. For decades, conventional trains, a major source of land transportation, have served people around the world.
To obtain the levitation force, an mfile is created in. Modeling and designing a pid controlled magnetic levitation. Maglev train floats on a magnetic field and it is propelled by linear induction. Dynamic modeling, timedomain analysis, pi and pid feedback control. Magnetic levitation twin pipe transport system advanced. In the past, magnetic levitation was attempted by using permanent magnets. Magnetic levitation theory and application based on levitation such as train,toy,turbine etc. Jens hillebrand term paper engineering industrial engineering and management publish your bachelors or masters thesis, dissertation, term paper or essay. Magnetic levitation is being used around the world in transportation systems to offer new types of maglev trains that have magnetic tracks repelling train cars with magnetic bases. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents. Magnetically levitated train is a highly modern vehicle. Modeling and control for a magnetic levitation system based on simlab platform in real time.
Systems working on the principle of magnetic levitation have. The ball elevation from the post is measured using a sensor embedded in the post. Jun 14, 2016 it could be possible on a maglev train. If the force is large enough, the moving magnet can levitated. Maglev 1 magnetic levitation experiment quanser consulting inc. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. Train levitates between 1 and 10 cm above guideway. The experimental results indicate that trains with 1 to 2 mm gaps cannot run properly due to the friction applied to the track. V3 department of mechanical engineering, magna college of engineering, magaral, chennai, india 1,2, 3.
T railway technology today 12 edited by kanji wako. Figure 1 shows the classification of existing highspeed rail systems. Download the seminar report for magnetic levitation. An unsung phenomenon of the past which is now being put to use in a variety of interesting and useful applications. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. What began as a solution for sleep issues grew into an innovative solution for active people on the go. A full trip on the shanghai transrapid maglev train.
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