The magnetic levitation train maglev project uses the concepts of electromagnetism and electrical machinery to levitate and propel a train along a track. Commercial maglev rails are few and far between as there are only 2 rails in existence today that transport people. Inductrack is a completely passive, failsafe magnetic levitation system, using only unpowered loops of wire in the track. Electrodynamic suspension eds is a form of magnetic levitation in which there are conductors which are exposed to timevarying magnetic fields. Magnetic levitation train technology the objective of this project is the creation of a laboratory scale magnetic levitating train. One of the notable characteristics of the inductrack maglev system is that levitation and. A fast and reliable software network load balancer daniel e. The maglev system used was verified experimentally and with simulations as well. The previous work of paul friend in 2004 includes the development of a laboratory scale model train containing permanent magnets. Modeling and control for a magnetic levitation system. Pdf electromagnetic levitated systems commonly used in the field of people transportation, tool. Onboard electronics and passengers with electromagnetic medical implants are unaffected by inductracks magnetic fields. Inductrack i is designed for high speeds, whileinductrack ii is suited for slow speeds.
Above is an image of the guideway for the yamanashi maglev test line in japan. In the inductrack maglev system halbach arrays are used, located below the train car. Transient response of inductrack systems for maglev transport. The inductrack possibilities and drawbacks use the inductrack levitation system to propel spacecrafts into space possibility to accelerate spacecraft 950 kmhr and save 30 to 40 percent on rocket fuel to make ride comfortable to passengers, other aerodynamic. At rest or in the station auxiliary wheels are needed. Inductrack iii for superefficient leviation and movement. Apr 3, high reliability and lower maintenance and operating costs make magnetic levitation maglev technology integral to advancing the nations. The inductrack maglev train by collin zajicek on prezi. Magnetic levitation driving without wheels presentation outline 1. The maglev project consists of two construction phases. Mechanical project on magnetic levitation download report pdf. Apr 19, 2000 concepts developed during research on passive magnetic bearing systems at the lawrence livermore national laboratory gave rise to a new approach to magnetic levitation, the inductrack. A passive inducedcurrent system employing permanent magnets on the moving vehicle, the inductrack maximizes levitation forces by a combination of two elements.
The inductrack approach to magnetic levitation pdf. May 04, 2015 maglev is the system of transportation that uses magnetic levitation to suspend,guide and propel the vehicles using magnets. In this section, the construction of the magnetic levitation system and its components will be explained. Maintenance requirements for inductrack are lower than they are for other maglev systems. Inductrack iii addresses a problem associated with the cantilevered track of the inductrack ii configuration. Adjust the gain potentiometer on the maglev to obtain anywhere between 4. Maglev, 2006 lathen maglev train accident, shanghaihangzhou maglev line, linimo, inductrack, orbital ring, l0 series shinkansen, national maglev initiative, swissmetro, jb monorail, incheon.
General atomics urban maglev vehicle uses permanent magnets arranged in a halbach. 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. May 09, 2016 hyperloop transportation says it will use a cheaper, safer form of magnetic levitation elon musks hyperloop is now an 8bit video game and damn, its hard view all 46 stories. Us20030112105a1 laminated track design for inductrack maglev. Magnetism provides the force required to levitate the train over the tracks. Hyperloop transportation says it will use a cheaper, safer form of magnetic levitation elon musks hyperloop is now an 8bit video game and damn, its hard view all 46 stories. Conventional maglev systems, that is, ones employing superconducting coils, or ones requiring servocontrolled electromagnets for levitation, appear to fall short on one or more of these counts. In inductrack systems, magnetic levitation is achieved through the motioncoupled interaction between the permanent magnets pms in. Download pdf info publication number us20030112105a1.
Maglev 11 coil which causes the ball to jump up to the magnet and stay there. An assembled magnetic levitation system mechanical project. The engineering challenge is to get a train to move three feet without making physical contact with the track. The inductrack maglev system global climate and energy project. Pdf the inductrack approach to magnetic levitation. This project is a continuation of work done by paul friend in 2004. Richard post from lawrence livermore national labs llnl. Our maglev rail will feature a modified version of the inductrack maglev design as well as electromagnetic suspension design ideas. Jul 06, 2004 conventional maglev systems, that is, ones employing superconducting coils, or ones requiring servocontrolled electromagnets for levitation, appear to fall short on one or more of these counts. Modeling and control for a magnetic levitation system based.
The track can be in one of two configurations, a ladder track and a laminated track. In an inductrack system, the magnetic interaction forces are coupled with the motion of a moving vehicle carrying halbach arrays, which in many situations. The reason for choosing the inductrack method and a basic explanation of the inductrack method for magnetic levitation are given. Inductrack with pm permanent magnet eds maglev system. Keywords inductrack, linear motor, magnetic guidance, magnetic levitation, maglev, mlx, swissmetro. To maximize the energy efficiency of maglev systems both the levitation means and the propulsion system must be optimized. Laminated track design for inductrack maglev systems en laminated track design for inductrack maglev. In the dream big maglev train lesson, students designed a magnetic train system. A homegrown maglev system for our nation ppt video online download the track can be in one jaglev two configurations, a ladder track and a laminated track. Inductrack iii for superefficient leviation and movement of.
If one moves a base made of a very good electrical conductor such as copper, aluminium or silver close to a magnet, an eddy current will be induced in the conductor that will oppose the changes in the field and create. We feel pleased to present our formal report on maglev trains. Click download or read online button to get maglev train book now. Us20030112105a1 laminated track design for inductrack. This induces eddy currents in the conductors that creates a repulsive magnetic field which holds the two objects apart these time varying magnetic fields can be caused by relative motion between two objects. Download limit exceeded you have exceeded your daily download allowance. Maglev transportation engineering mechanical engineering.
The inductrack is a newer type of eds that usespermanent roomtemperature magnets. Maglev technologies general atomics ga is a pioneer in the research and development of innovative permanent magnets and linear motors to create clean, fast and efficient transportation solutions. Second, the transient response of an inductrack system is simulated and analyzed in several typical dynamic scenarios. Download fulltext pdf download fulltext pdf maglev projects technology aspects and choices article pdf available in ieee transactions on applied superconductivity 121. Maglev is the system of transportation that uses magnetic levitation to suspend,guide and propel the vehicles using magnets. The inductrack is thus failsafe, that is, drive system failure would only result in the vehicle slowing down and finally settling on its auxiliary wheels. Current projects nclusion introduction maglev, or magnetic levitation, is a system of transportation that suspends, guides. Concepts developed during research on passive magnetic bearing systems at the lawrence livermore national laboratory gave rise to a new approach to magnetic levitation, the inductrack. A high speed maglev train uses noncontact magnetic levitation, guidance and propulsion systems and has no wheels, axles and transmission. 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.
The dynamic analysis of inductrack systems with the proposed model has two major tasks. The ladder track is made of unpowered litz wire cables, and the laminated track is. Japanese engineers have developed a competing version of maglev trains that use an electrodynamic suspension eds system, which is based on the repelling force of magnets. Urban and intercity maglev systems could represent a practical and energyefficient solution to pressing transit needs. This has provided the impetus to the research and development of clean alternatives for existing public transportation systems. Yaghoubi, procedures for safety and risk assessment of maglev systems. Inductrack is a passive, failsafe electrodynamic magnetic levitation system, using only. A simpler approach to magnetic levitation citeseerx. The findings showed an agreement for both simulation and experiment results. Inductrack is a passive, failsafe electrodynamic magnetic levitation system, using only unpowered loops of wire in the track and permanent magnets arranged into halbach arrays on the vehicle to achieve magnetic levitation. Consistently rising environmental concerns and depleting petroleum resources have accentuated the need of sustainable, energy efficient and clean means of transport.
As a maglev system, inductrack allows for a short turning radius and is designed for quiet operation. Gas passive maglev system uses permanent magnetics on vehicles and linear synchronous motors on guideways to levitate and propel vehicles. Onboard electronics and passengers with electromagnetic medical. Inductrack iii configurationa maglev system for high loads us8578860b2 en. A candidate system is the inductrack, employing permanent magnets on the. First, the proposed model is validated through comparison with the noted steadystate results in the literature. Us8578860b2 inductrack iii configurationa maglev system for. Us8578860b2 inductrack iii configurationa maglev system. Laminated track design for inductrack maglev systems the. This site is like a library, use search box in the widget to get ebook that you want. Worldwide highspeed maglev developments refer to projects such as the german transrapid with ems, the japanese mlx with eds, and the u.
The report focuses on the technology empowering the highly successful transportation method of maglev trains, and their advantages. The inductrack approach to magnetic levitation unt. The present invention, an evolutionary development of the inductrack maglev system, is aimed at providing a solution to this problem. Magnetic levitation transportation system and method. Jan 06, 2008 thanks to klaus halbach and richard f. Post inventions, today can be possible such great advances like inductrack and electromechanical batteries. This concept, christened inductrack, is essentially an eds system using permanent magnets. This results in the following differential equation for the ball dynamics. Inductrack magnet configuration the regents of the. Maglev, mbahn, airrail link, baltimore washington d. Magnetic levitation maglev is an innovative transportation technology. The use of a cantilevered track could present mechanical design problems in attempting to achieve a strong enough track system such that it would be capable of supporting very heavy loads. The answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. A preliminary feasibility study concluded that a fullscale inductrack system would be less expensive to build and operate than the german maglev.
Development of linear motorpropelled, contactless maglev systems is considered a promising. For maglev applications this speed is a few kilometers per hour, walking speed. If the power fails, the train can slow down gradually and stop on its auxillary wheels. This induces eddy currents in the conductors that creates a repulsive magnetic field which holds the two objects apart. It is sometimes said to be the first fundamental innovation in the field of railroad technology since the invention of the railway. Laminated track design for inductrack maglev systems download pdf info publication number us20030112105a1. Maglev trains seminar report,ppt,pdf,doc,presentation. It is a passive levitation system, also known as an inductrack system based on the principle of magnetic repulsion.
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. The simplicity of the inductrack should make it substantially less expensive than the present eds or ems maglev trains. 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. The inductrack is a newer type of eds that uses permanent roomtemperature magnets to produce the magnetic fields instead of powered electromagnets or cooled superconducting magnets. Inductrack uses a power source to accelerate the train only until it begins to levitate. Dec 23, 2005 a preliminary feasibility study concluded that a fullscale inductrack system would be less expensive to build and operate than the german maglev. Livermore national laboratory on passive magnetic bearings, a new magnetic levitation system, the inductrack, has been developed and tested at model scale. The inductrack approach to magnetic levitation unt digital. Maglev train download ebook pdf, epub, tuebl, mobi. The key difference between japanese and german maglev train technology is that the japanese. Inductrack iii configurations are suited for use in transporting heavy freight loads.
The electromagnetic force is used to counteract the effects of the gravitational force. The control systems were compared under various parameters. As a new strategy for magnetic levitation, inductrack systems with halbach arrays of permanent magnets have been applied to maglev trains and intensively researched in various projects. Maglev trains seminar report,ppt,pdf,doc,presentation,free. Transient response of inductrack systems for maglev.
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