During the build, the magnets may come loose from the track or the train. See figure 4 changes in the frequency of the signal in the track will change the speed of the train and will in turn determine the levitation height. Journal for research volume 01 issue 08 october 2015 issn. 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 minimal environmental impact. If magnetic repulsion is used, it is known as magnetic levitation. 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. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents.
V3 department of mechanical engineering, magna college of engineering, magaral, chennai, india 1,2, 3. Magnetic levitation transport or maglev is a form of transportation that suspends guides and propels vehicles via electromagnetic force. The train is levitated by a meltprocessed gdba2cu3ox gd123 superconducting material over a magnetic rail track. The china railway rolling stock corporation crrc, one of the worlds largest train manufacturers, recently announced that it had begun work on a. 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. This method can be faster than wheeled mass transit systems. A high speed maglev train uses noncontact magnetic levitation, guidance and propulsion systems and has no.
Pdf magnetic levitation train j4r journal for research. If the magnetic force of attraction is used, it is known as magnetic suspension. The propulsion of the train is mainly based on two types of motors. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can compete favorably with highspeed rail and airplanes. This paper involves the design, hardware, technology, application and future uses of magnetic levitation trains. Magnetically levitated train is a highly modern vehicle.
A superconductor is a material which conduct an electric current without resistance. Simple magnetic levitation train seminar reportpdf ppt. Abstractlowcost magnetic levitation project kits are used in teaching system design in an introductory undergraduate control systems course. Pdf this paper involves the design, hardware, technology, application and future uses of magnetic levitation trains. Pdf propulsion of magnetic levitation train researchgate. Magnetic levitation train maglev train seminar report pdf.
The guideway is the physical structure along which maglev vehicles are levitated. With their new insights into the science of magnets, students will use the. Principle of lateral guidence in ems the levitation magnets and rail are bothsystem. 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. The user will adjust the speed for the train manually. The magnetic levitation maglev train is one of the best candidates to satisfy those requirements. These trains use powerful magnets to stay in the air. Train the train will have one sensor on it to measure spee d. Magnetic levitation train free download as powerpoint presentation. The levitation halbach array induces current in the track which induces a magnetic. One of the first major applications of magnetic levitation was in supporting airplane models in wind tunnels.
Levitation is the process by which an object is suspended against gravity, in a stable position, without physical contact. One set is placed over the track to levitate the train, while the other set is placed above the motor to provide propulsion. If this happens, just reattach them using more tape so that the magnets stay secured to the lego blocks. The technological innovation behind these trains comes alive for students in this transportation engineering unit. Magnetic levitation methods and modeling in maglev trains, 2014 issn.
Figure 1 below shows the inputs and different subsystems of the maglev system. James powell and gordon danby of brookhaven received the first patent for a magnetically levitated train design in the late 1960s. Superconducting magnetic levitated train, low energy. Pdf this paper discusses the propulsion technology of magnetic levitation train from an electrical engineering point of view. Download the seminar report for magnetic levitation. Maglev short for magnetic levitation trains can trace their roots to technology pioneered at brookhaven national laboratory. The method currently being pursued is a passive levitation and guidance system that is controlled by the propulsion of the train. Procedures for safety and risk assessment of maglev systems.
It is important to note that with attractive forces created between the train and the track. The height will be a function of the speed and will be a maximum of. Magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. The engine for maglev trains is rather inconspicuous. It is sometimes said to be the first fundamental innovation in the field of railroad technology since the invention of the railway. This magnetic field can push or pull on other nearby magnets, or generate a. Experimenting with a superconducting levitation train. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. It employs diamagnetism, which is an intrinsic property of many materials referring to their. While a conventional train drives forward by using friction. Measurements of the magnetic field, at ground level directly under the standard 8mhigh elevated guideway show a magnetic field of only 0. The maglev transportation system is more stable, faster, economic, efficient.
Practical applications of magnetic levitation technology. Magnetic levitation maglev is an innovative transportation technology. 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. Students will send magnets sailing, help magnets hover, and poke around magnetic fields. In the past, magnetic levitation was attempted by using permanent magnets. China is building a magnetic levitation train that can go. The magnetic levitation system plays a major role in suspending the maglev train stably and following the track quickly with the desired gap. Compared to conventional wheeled trains, differences in construction affect the economics of maglev trains. The train consists of at least two sets of halbach arrays. A diagram of the model train you will build in this science project is shown in figure 2 below. 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. Although maglev dont use steel wheel on steel rail usually associated with trains, the. According to this there is no contact between track and wheel, so frictional loss in drive is negligible. For decades, conventional trains, a major source of land transportation, have served people around the world.
A magnetic levitation train or maglev is a trainlike vehicle that is suspended in the air above a single track, and propelled forward using the repulsive and attractive forces of magnetism. When the motor is powered, the train begins to move on wheels along the track. 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. This results in the following differential equation for the ball dynamics. Innovative maglev or magnetic levitation trains move by using magnets instead of wheels. Nope, no photoshop and no fishing line were used to make this picture, just 100% pure physics and some patience. The project may be a multiyear project, because the entire system must be created. Students receive individual kits along with assembly instructions for building a magnetic levitation device that is marginally stable, and they are then challenged to modify the system to improve. Development history in the early development stages, superconducting magnet technology was considered an esoteric technical field and some people assumed that the technology. Magnetic levitation is the process of levitating an object by exploiting magnetic fields.
Magnet that use in magnetic levitation may be permanent magnet or electromagnet. Instead of using fossil fuels, the magnetic field created by the electrified coils in the guideway walls and the track combine to propel the train. The paper deals with the design of the levitation and guidance system of the magnetic levitation train transrapid. Magnetic levitation is requirement of future because in magnetic levitation train fly in the air, balancing by lift and drag forces. 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. Practical applications of magnetic levitation technology, final report 3 in new york of a model maglev train, with the hopes of exciting investors with the promise of highspeed ground transportation. If the force is large enough, the moving magnet can levitated. Peal the plastic film from the back of 24 long magnetic strips and mount them on the flat section of angle brackets. In it, railroading technology will away with moving components, permitting vehicles to maneuver additional swimmingly and more. The common point in all applications is the lack of contact and thus no wear and friction.
How could a train possibly move along the tracks without wheels. The name maglev is derived from magnetic levitation. Magnetic levitation, also known as maglev is used in a similar way to levitate objects in air without any support, using magnetic field. 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 train has light but powerful superconducting magnets, and the guideway has energized coils along the sides.
Linear electric motor lem and, linear induction motor lim3. T railway technology today 12 edited by kanji wako. The magnetic levitation technology can be used as an efficient technology in. 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. 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 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 vehicles use non contact magnetic levitation, guidance and propulsion. 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. This instructable explains how you can build your own top hovering in the air like a ufo. Anderson and morten ring eskildsen department of phyy,sics, university of notre dame, notre dame, indiana 46656, usa what is a superconductor.
Maglev trains were conceptualized during the early 1900s by american professor and inventor robert goddard and frenchborn american engineer emile bachelet and have been. Maglev vehicles use noncontact magnetic levitation, guid ance, and propulsion systems. Some highspeed trains actually use magnetic levitation, meaning they float above the track using magnets, and do not actually use wheels. The first type of maglev levitation, ems, requires two things. The magnetic levitation force is ideal for supporting a train at very high speeds. Magnetic levitation is a highly advanced technology. A second train set was completed at the end of 1997, making it possible to conduct various tests with two trains. Because of the lack of physical contact between the track and the vehicle, the only friction is. Place your train car between the rails and make sure that it can move freely and the space between the walls and train is as small as possible.