Inductrack magnet configuration the regents of the. In this twopart paper, a new transient model of two degreesoffreedom for inductrack systems is proposed. 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. Laminated track design for inductrack maglev systems the. Click download or read online button to get maglev train book now. Richard post from lawrence livermore national labs llnl. One of the notable characteristics of the inductrack maglev system is that levitation and. A passive inducedcurrent system employing permanent magnets on the moving vehicle, the inductrack maximizes levitation forces by a combination of two elements. 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.
By contrast with previously studied levitation approaches, the inductrack concept concept represents a simpler, potentially less expensive, and totally passive means of levitating a highspeed train. This maglev model accurately reproduces the setup of magnets used in shanghais maglev system and is made up of two parts. General atomics low speed maglev technology development. Inductrack iii for superefficient leviation and movement. Since it was first proposed the magnetic levitation of trains has been perceived to offer many potential advantages over. The study noted, however, that the inductrack s energy usage and maintenance costs would be significantly lower than those of a conventional railway. Hyperloop transportation says it will use a cheaper. Inductrack iii for superefficient leviation and movement of shipping containers. Propulsion, magnetic levitation and guidance, transfer of energy to the vehicle are investigated. Post inventions, today can be possible such great advances like inductrack and electromechanical batteries. By choosing the concept, the design requirements were identified and the maglev technologies were analysed. Zeropower control of hybrid magnetic levitation system. This project is a continuation of work done by paul friend in 2004.
The inductrack system isfail safe in the event of a power failure. A real comparison is lacking and not possible since noone has built an inductrack system yet while maglev systems do exist. Model maglev train the menlo roundtable menlo school. The maglev project consists of two construction phases. In this twopart paper, a new transient model of two degreesoffreedom for inductrack. In an inductrack system, the magnetic interaction forces are coupled with the motion of a moving vehicle carrying halbach arrays, which in many situations results in complicated transient behaviors of the system. A transient model of inductrack dynamic systems international.
This report describes theoretical and experimental investigations of a new approach to the problem of the magnetic levitation of a moving object. 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. Inductrack the inductrack is a newer type of eds that uses. Livermore national laboratory on passive magnetic bearings, a new magnetic levitation system, the. Maglev train free download as powerpoint presentation. Inductrack maglev system could allow trains to glide across the. As a maglev system, inductrack allows for a short turning radius and is designed for quiet operation. The inductrack maglev train by collin zajicek on prezi. It is also used for some classes of magnetically levitated bearings. The inductrack maglev system free download magnetic attractionems electromagnetic suspension systems, using servocontrolled electromagnets on the train car, attracted upward to a ironplate rail. In this part ii, the proposed model, which is governed by a set of nonlinear integrodifferential governing equations, is used to predict the dynamic response of inductrack systems. Transient response of inductrack systems for maglev. The key difference between japanese and german maglev train technology is that the japanese trains use supercooled, superconducting electromagnets.
Maglev train download ebook pdf, epub, tuebl, mobi. Two different types of maglev trains have been built and demonstrated at full scale at speeds up to 500 kmhr. A simpler approach to magnetic levitation citeseerx. This paper presents technology aspects and choices relative to worldwide maglev projects such as the german transrapid, the japanese mlx, the usa inductrack and the swissmetro. In inductrack iii, the levitating portion of the track can be supported uniformly from below, as the levitating halbach array. In part i of this twopart paper, a new benchmark transient model of inductrack systems is developed. Maglev derived from magnetic levitation is a system of transportation created by justus thompson. Us8985030b2 inductrack iii configurationa maglev system. 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. 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. The inductrack is a newer type of eds that usespermanent roomtemperature magnets. The inductrack approach to magnetic levitation core. Urban and intercity maglev systems could represent a practical and energyefficient solution to pressing transit needs.
Download your presentation papers from the following links. It is a large distributed software system that runs on commodity linux servers. The track can be in one of two configurations, a ladder track and a laminated track. 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. Inductrack general atomics chassis test in san diego demo system at california univ. 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 inductrack maglev system global climate and energy project. The magnetic levitation train maglev project uses the concepts of electromagnetism and electrical machinery to levitate and propel a train along a track. The ladder track is made of unpowered litz wire cables, and the laminated track is. Laminated track design for inductrack maglev systems. The simplicity of the inductrack should make it substantially less expensive than the present eds or ems maglev trains. To maximize the energy efficiency of maglev systems both the levitation means and the propulsion system must be optimized. The system is a cheaper, safer alternative to regular magnetic levitation, or maglev, which is currently in operation powering highspeed trains in china and europe. Us20030112105a1 laminated track design for inductrack maglev.
Us2064929a1 inductrack iii configuration a maglev system. Us8578860b2 inductrack iii configurationa maglev system. What if someone combine the two making a flying train, well someone has,even better,this new flying train does not require any engine,is environmentally friendly,and would require less maintenance than your car, this new invention called maglev. Inductrack is a passive, failsafe electrodynamic magnetic levitation system, using only unpowered loops of wire in the track and permanent magnets arranged. Problems and barriers impeding the implementation of. This results in the following differential equation for the ball dynamics. Inductrack iii configurations are suited for use in transporting heavy freight loads.
For maglev applications this speed is a few kilometers per hourwalking speed. Simple magnetic levitation train seminar reportpdf ppt. Federal transit may 2005 administration final report. Pa intriguing concepts for far future magtube mag net freight swiss metro derivative evacuated tube transport levx mag plane american maglev technologies zhonghua06 magnemotion m3 colorado 200 and many more test program 1994 daejon starter system. 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. 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. At rest or in the station auxiliary wheels are needed. Electrodynamic suspension can also occur when an electromagnet driven by an ac electrical source produces the changing magnetic field, in some cases, a linear induction motor generates the field.
Much like a fullsized maglev system, the track and train need to be precisely. As a new approach to magnetic levitation by permanent magnet envisioned in 1990s, the concept of inductrack has been applied to designs of various maglev systems, including rocket launchers. Arising out of research at the lawrence livermore national laboratory on passive magnetic bearings, a new magnetic levitation system, the inductrack, has b. For decades, its been said that the maglev, or magnetically levitated train, would soon be arriving to whisk people off on silkysmooth rides at 300 miles per hour or more. Maglev is the system of transportation that uses magnetic levitation to suspend,guide and propel the vehicles using magnets. Inductrack iii addresses a problem associated with the cantilevered track of the inductrack ii configuration. After 8 years of development and testing, sunons dr maglev motor fan is being introduced with the. Modeling of electrodynamic suspension systems request pdf. First described by robert goddard, american rocket scientist, 1909 scientific american. 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.
As a new approach to magnetic levitation by permanent magnet envisioned in 1990s, the concept of inductrack has been applied to designs of. After 8 years of development and testing, sunons dr maglev motor fan is being introduced with the advantages of prevents the stator and impeller from moving, better dustresistance, higher reliability, and longer life expectancy. There are three basic different concepts of magnetic suspension have evolved. The inductrack approach to magnetic levitation unt. Apr 3, high reliability and lower maintenance and operating costs make magnetic levitation maglev technology integral to advancing the nations. The present invention, an evolutionary development of the inductrack maglev system, is aimed at providing a solution to this problem. Maglev projects technology aspects and choices core. If the power fails, the train can slow downgradually and stop on its auxillary wheels. Inductrack i is designed for high speeds, whileinductrack ii is suited for slow speeds.
Mechanical project on magnetic levitation download report pdf. Promoters of magnetically levitated trains maglev envision a. Magnetic pressure is used to counteract the effects of. Mlx, and inductrack, especially, need lateral and vertical wheel. 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. 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. Magnetic flux concentrator shield for use in overload relay. This site is like a library, use search box in the widget to get ebook that you want. Eds is used for maglev trains, such as the japanese scmaglev. General atomics urban maglev vehicle uses permanent magnets arranged in a halbach. The previous work of paul friend in 2004 includes the development of a laboratory scale model train containing permanent magnets. A candidate system is the inductrack, employing permanent magnets on the.
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